diff options
Diffstat (limited to 'modules/gdscript/gdscript_parser.cpp')
| -rw-r--r-- | modules/gdscript/gdscript_parser.cpp | 1454 |
1 files changed, 820 insertions, 634 deletions
diff --git a/modules/gdscript/gdscript_parser.cpp b/modules/gdscript/gdscript_parser.cpp index 0382944efd..ca452bf008 100644 --- a/modules/gdscript/gdscript_parser.cpp +++ b/modules/gdscript/gdscript_parser.cpp @@ -42,14 +42,14 @@ template <class T> T *GDScriptParser::alloc_node() { - T *t = memnew(T); t->next = list; list = t; - if (!head) + if (!head) { head = t; + } t->line = tokenizer->get_token_line(); t->column = tokenizer->get_token_column(); @@ -61,7 +61,6 @@ static String _find_function_name(const GDScriptParser::OperatorNode *p_call); #endif // DEBUG_ENABLED bool GDScriptParser::_end_statement() { - if (tokenizer->get_token() == GDScriptTokenizer::TK_SEMICOLON) { tokenizer->advance(); return true; //handle next @@ -72,8 +71,17 @@ bool GDScriptParser::_end_statement() { return false; } -bool GDScriptParser::_enter_indent_block(BlockNode *p_block) { +void GDScriptParser::_set_end_statement_error(String p_name) { + String error_msg; + if (tokenizer->get_token() == GDScriptTokenizer::TK_IDENTIFIER) { + error_msg = vformat("Expected end of statement (\"%s\"), got %s (\"%s\") instead.", p_name, tokenizer->get_token_name(tokenizer->get_token()), tokenizer->get_token_identifier()); + } else { + error_msg = vformat("Expected end of statement (\"%s\"), got %s instead.", p_name, tokenizer->get_token_name(tokenizer->get_token())); + } + _set_error(error_msg); +} +bool GDScriptParser::_enter_indent_block(BlockNode *p_block) { if (tokenizer->get_token() != GDScriptTokenizer::TK_COLON) { // report location at the previous token (on the previous line) int error_line = tokenizer->get_token_line(-1); @@ -98,12 +106,10 @@ bool GDScriptParser::_enter_indent_block(BlockNode *p_block) { while (true) { if (tokenizer->get_token() != GDScriptTokenizer::TK_NEWLINE) { - return false; //wtf } else if (tokenizer->get_token(1) == GDScriptTokenizer::TK_EOF) { return false; } else if (tokenizer->get_token(1) != GDScriptTokenizer::TK_NEWLINE) { - int indent = tokenizer->get_token_line_indent(); int tabs = tokenizer->get_token_line_tab_indent(); IndentLevel current_level = indent_level.back()->get(); @@ -122,7 +128,6 @@ bool GDScriptParser::_enter_indent_block(BlockNode *p_block) { return true; } else if (p_block) { - NewLineNode *nl = alloc_node<NewLineNode>(); nl->line = tokenizer->get_token_line(); p_block->statements.push_back(nl); @@ -133,16 +138,13 @@ bool GDScriptParser::_enter_indent_block(BlockNode *p_block) { } bool GDScriptParser::_parse_arguments(Node *p_parent, Vector<Node *> &p_args, bool p_static, bool p_can_codecomplete, bool p_parsing_constant) { - if (tokenizer->get_token() == GDScriptTokenizer::TK_PARENTHESIS_CLOSE) { tokenizer->advance(); } else { - parenthesis++; int argidx = 0; while (true) { - if (tokenizer->get_token() == GDScriptTokenizer::TK_CURSOR) { _make_completable_call(argidx); completion_node = p_parent; @@ -168,9 +170,7 @@ bool GDScriptParser::_parse_arguments(Node *p_parent, Vector<Node *> &p_args, bo break; } else if (tokenizer->get_token() == GDScriptTokenizer::TK_COMMA) { - if (tokenizer->get_token(1) == GDScriptTokenizer::TK_PARENTHESIS_CLOSE) { - _set_error("Expression expected"); return false; } @@ -190,7 +190,6 @@ bool GDScriptParser::_parse_arguments(Node *p_parent, Vector<Node *> &p_args, bo } void GDScriptParser::_make_completable_call(int p_arg) { - completion_cursor = StringName(); completion_type = COMPLETION_CALL_ARGUMENTS; completion_class = current_class; @@ -203,14 +202,12 @@ void GDScriptParser::_make_completable_call(int p_arg) { } bool GDScriptParser::_get_completable_identifier(CompletionType p_type, StringName &identifier) { - identifier = StringName(); if (tokenizer->is_token_literal()) { identifier = tokenizer->get_token_literal(); tokenizer->advance(); } if (tokenizer->get_token() == GDScriptTokenizer::TK_CURSOR) { - completion_cursor = identifier; completion_type = p_type; completion_class = current_class; @@ -236,18 +233,16 @@ bool GDScriptParser::_get_completable_identifier(CompletionType p_type, StringNa } GDScriptParser::Node *GDScriptParser::_parse_expression(Node *p_parent, bool p_static, bool p_allow_assign, bool p_parsing_constant) { - //Vector<Node*> expressions; //Vector<OperatorNode::Operator> operators; Vector<Expression> expression; - Node *expr = NULL; + Node *expr = nullptr; int op_line = tokenizer->get_token_line(); // when operators are created at the bottom, the line might have been changed (\n found) while (true) { - /*****************/ /* Parse Operand */ /*****************/ @@ -275,13 +270,13 @@ GDScriptParser::Node *GDScriptParser::_parse_expression(Node *p_parent, bool p_s parenthesis++; Node *subexpr = _parse_expression(p_parent, p_static, p_allow_assign, p_parsing_constant); parenthesis--; - if (!subexpr) - return NULL; + if (!subexpr) { + return nullptr; + } if (tokenizer->get_token() != GDScriptTokenizer::TK_PARENTHESIS_CLOSE) { - _set_error("Expected ')' in expression"); - return NULL; + return nullptr; } tokenizer->advance(); @@ -296,7 +291,6 @@ GDScriptParser::Node *GDScriptParser::_parse_expression(Node *p_parent, bool p_s int line = tokenizer->get_token_line(); while (!done) { - switch (tokenizer->get_token()) { case GDScriptTokenizer::TK_CURSOR: { completion_type = COMPLETION_GET_NODE; @@ -310,7 +304,6 @@ GDScriptParser::Node *GDScriptParser::_parse_expression(Node *p_parent, bool p_s tokenizer->advance(); } break; case GDScriptTokenizer::TK_CONSTANT: { - if (!need_identifier) { done = true; break; @@ -318,7 +311,7 @@ GDScriptParser::Node *GDScriptParser::_parse_expression(Node *p_parent, bool p_s if (tokenizer->get_token_constant().get_type() != Variant::STRING) { _set_error("Expected string constant or identifier after '$' or '/'."); - return NULL; + return nullptr; } path += String(tokenizer->get_token_constant()); @@ -327,7 +320,6 @@ GDScriptParser::Node *GDScriptParser::_parse_expression(Node *p_parent, bool p_s } break; case GDScriptTokenizer::TK_OP_DIV: { - if (need_identifier) { done = true; break; @@ -355,7 +347,7 @@ GDScriptParser::Node *GDScriptParser::_parse_expression(Node *p_parent, bool p_s if (path == "") { _set_error("Path expected after $."); - return NULL; + return nullptr; } OperatorNode *op = alloc_node<OperatorNode>(); @@ -382,7 +374,6 @@ GDScriptParser::Node *GDScriptParser::_parse_expression(Node *p_parent, bool p_s continue; //no point in cursor in the middle of expression } else if (tokenizer->get_token() == GDScriptTokenizer::TK_CONSTANT) { - //constant defined by tokenizer ConstantNode *constant = alloc_node<ConstantNode>(); constant->value = tokenizer->get_token_constant(); @@ -390,7 +381,6 @@ GDScriptParser::Node *GDScriptParser::_parse_expression(Node *p_parent, bool p_s tokenizer->advance(); expr = constant; } else if (tokenizer->get_token() == GDScriptTokenizer::TK_CONST_PI) { - //constant defined by tokenizer ConstantNode *constant = alloc_node<ConstantNode>(); constant->value = Math_PI; @@ -398,7 +388,6 @@ GDScriptParser::Node *GDScriptParser::_parse_expression(Node *p_parent, bool p_s tokenizer->advance(); expr = constant; } else if (tokenizer->get_token() == GDScriptTokenizer::TK_CONST_TAU) { - //constant defined by tokenizer ConstantNode *constant = alloc_node<ConstantNode>(); constant->value = Math_TAU; @@ -406,7 +395,6 @@ GDScriptParser::Node *GDScriptParser::_parse_expression(Node *p_parent, bool p_s tokenizer->advance(); expr = constant; } else if (tokenizer->get_token() == GDScriptTokenizer::TK_CONST_INF) { - //constant defined by tokenizer ConstantNode *constant = alloc_node<ConstantNode>(); constant->value = Math_INF; @@ -414,7 +402,6 @@ GDScriptParser::Node *GDScriptParser::_parse_expression(Node *p_parent, bool p_s tokenizer->advance(); expr = constant; } else if (tokenizer->get_token() == GDScriptTokenizer::TK_CONST_NAN) { - //constant defined by tokenizer ConstantNode *constant = alloc_node<ConstantNode>(); constant->value = Math_NAN; @@ -422,12 +409,11 @@ GDScriptParser::Node *GDScriptParser::_parse_expression(Node *p_parent, bool p_s tokenizer->advance(); expr = constant; } else if (tokenizer->get_token() == GDScriptTokenizer::TK_PR_PRELOAD) { - //constant defined by tokenizer tokenizer->advance(); if (tokenizer->get_token() != GDScriptTokenizer::TK_PARENTHESIS_OPEN) { _set_error("Expected '(' after 'preload'"); - return NULL; + return nullptr; } tokenizer->advance(); @@ -476,23 +462,22 @@ GDScriptParser::Node *GDScriptParser::_parse_expression(Node *p_parent, bool p_s if (!valid) { _set_error("expected string constant as 'preload' argument."); - return NULL; + return nullptr; } - if (!path.is_abs_path() && base_path != "") + if (!path.is_abs_path() && base_path != "") { path = base_path.plus_file(path); + } path = path.replace("///", "//").simplify_path(); if (path == self_path) { - _set_error("Can't preload itself (use 'get_script()')."); - return NULL; + return nullptr; } Ref<Resource> res; dependencies.push_back(path); if (!dependencies_only) { if (!validating) { - //this can be too slow for just validating code if (for_completion && ScriptCodeCompletionCache::get_singleton() && FileAccess::exists(path)) { res = ScriptCodeCompletionCache::get_singleton()->get_cached_resource(path); @@ -500,29 +485,28 @@ GDScriptParser::Node *GDScriptParser::_parse_expression(Node *p_parent, bool p_s res = ResourceLoader::load(path); } } else { - if (!FileAccess::exists(path)) { _set_error("Can't preload resource at path: " + path); - return NULL; + return nullptr; } else if (ScriptCodeCompletionCache::get_singleton()) { res = ScriptCodeCompletionCache::get_singleton()->get_cached_resource(path); } } if (!res.is_valid()) { _set_error("Can't preload resource at path: " + path); - return NULL; + return nullptr; } } if (tokenizer->get_token() != GDScriptTokenizer::TK_PARENTHESIS_CLOSE) { _set_error("Expected ')' after 'preload' path"); - return NULL; + return nullptr; } Ref<GDScript> gds = res; if (gds.is_valid() && !gds->is_valid()) { _set_error("Couldn't fully preload the script, possible cyclic reference or compilation error. Use \"load()\" instead if a cyclic reference is intended."); - return NULL; + return nullptr; } tokenizer->advance(); @@ -533,10 +517,9 @@ GDScriptParser::Node *GDScriptParser::_parse_expression(Node *p_parent, bool p_s expr = constant; } else if (tokenizer->get_token() == GDScriptTokenizer::TK_PR_YIELD) { - if (!current_function) { _set_error("\"yield()\" can only be used inside function blocks."); - return NULL; + return nullptr; } current_function->has_yield = true; @@ -544,7 +527,7 @@ GDScriptParser::Node *GDScriptParser::_parse_expression(Node *p_parent, bool p_s tokenizer->advance(); if (tokenizer->get_token() != GDScriptTokenizer::TK_PARENTHESIS_OPEN) { _set_error("Expected \"(\" after \"yield\"."); - return NULL; + return nullptr; } tokenizer->advance(); @@ -560,23 +543,22 @@ GDScriptParser::Node *GDScriptParser::_parse_expression(Node *p_parent, bool p_s expr = yield; tokenizer->advance(); } else { - parenthesis++; Node *object = _parse_and_reduce_expression(p_parent, p_static); - if (!object) - return NULL; + if (!object) { + return nullptr; + } yield->arguments.push_back(object); if (tokenizer->get_token() != GDScriptTokenizer::TK_COMMA) { _set_error("Expected \",\" after the first argument of \"yield\"."); - return NULL; + return nullptr; } tokenizer->advance(); if (tokenizer->get_token() == GDScriptTokenizer::TK_CURSOR) { - completion_cursor = StringName(); completion_node = object; completion_type = COMPLETION_YIELD; @@ -590,13 +572,14 @@ GDScriptParser::Node *GDScriptParser::_parse_expression(Node *p_parent, bool p_s } Node *signal = _parse_and_reduce_expression(p_parent, p_static); - if (!signal) - return NULL; + if (!signal) { + return nullptr; + } yield->arguments.push_back(signal); if (tokenizer->get_token() != GDScriptTokenizer::TK_PARENTHESIS_CLOSE) { _set_error("Expected \")\" after the second argument of \"yield\"."); - return NULL; + return nullptr; } parenthesis--; @@ -607,38 +590,32 @@ GDScriptParser::Node *GDScriptParser::_parse_expression(Node *p_parent, bool p_s } } else if (tokenizer->get_token() == GDScriptTokenizer::TK_SELF) { - if (p_static) { _set_error("\"self\" isn't allowed in a static function or constant expression."); - return NULL; + return nullptr; } //constant defined by tokenizer SelfNode *self = alloc_node<SelfNode>(); tokenizer->advance(); expr = self; } else if (tokenizer->get_token() == GDScriptTokenizer::TK_BUILT_IN_TYPE && tokenizer->get_token(1) == GDScriptTokenizer::TK_PERIOD) { - Variant::Type bi_type = tokenizer->get_token_type(); tokenizer->advance(2); StringName identifier; if (_get_completable_identifier(COMPLETION_BUILT_IN_TYPE_CONSTANT, identifier)) { - completion_built_in_constant = bi_type; } if (identifier == StringName()) { - _set_error("Built-in type constant or static function expected after \".\"."); - return NULL; + return nullptr; } if (!Variant::has_constant(bi_type, identifier)) { - if (tokenizer->get_token() == GDScriptTokenizer::TK_PARENTHESIS_OPEN && Variant::is_method_const(bi_type, identifier) && Variant::get_method_return_type(bi_type, identifier) == bi_type) { - tokenizer->advance(); OperatorNode *construct = alloc_node<OperatorNode>(); @@ -656,8 +633,9 @@ GDScriptParser::Node *GDScriptParser::_parse_expression(Node *p_parent, bool p_s id->name = identifier; op->arguments.push_back(id); - if (!_parse_arguments(op, op->arguments, p_static, true, p_parsing_constant)) - return NULL; + if (!_parse_arguments(op, op->arguments, p_static, true, p_parsing_constant)) { + return nullptr; + } expr = op; } else { @@ -674,11 +652,10 @@ GDScriptParser::Node *GDScriptParser::_parse_expression(Node *p_parent, bool p_s } if (!valid) { _set_error("Static constant '" + identifier.operator String() + "' not present in built-in type " + Variant::get_type_name(bi_type) + "."); - return NULL; + return nullptr; } } } else { - ConstantNode *cn = alloc_node<ConstantNode>(); cn->value = Variant::get_constant_value(bi_type, identifier); cn->datatype = _type_from_variant(cn->value); @@ -723,13 +700,11 @@ GDScriptParser::Node *GDScriptParser::_parse_expression(Node *p_parent, bool p_s tokenizer->advance(2); } } else if (tokenizer->get_token() == GDScriptTokenizer::TK_BUILT_IN_FUNC) { - BuiltInFunctionNode *bn = alloc_node<BuiltInFunctionNode>(); bn->function = tokenizer->get_token_built_in_func(); op->arguments.push_back(bn); tokenizer->advance(2); } else { - SelfNode *self = alloc_node<SelfNode>(); op->arguments.push_back(self); @@ -746,10 +721,18 @@ GDScriptParser::Node *GDScriptParser::_parse_expression(Node *p_parent, bool p_s if (tokenizer->get_token() == GDScriptTokenizer::TK_CURSOR) { _make_completable_call(0); completion_node = op; + + if (op->arguments[0]->type == GDScriptParser::Node::Type::TYPE_BUILT_IN_FUNCTION) { + BuiltInFunctionNode *bn = static_cast<BuiltInFunctionNode *>(op->arguments[0]); + if (bn->function == GDScriptFunctions::Function::RESOURCE_LOAD) { + completion_type = COMPLETION_RESOURCE_PATH; + } + } } if (!replaced) { - if (!_parse_arguments(op, op->arguments, p_static, true, p_parsing_constant)) - return NULL; + if (!_parse_arguments(op, op->arguments, p_static, true, p_parsing_constant)) { + return nullptr; + } expr = op; } } else if (tokenizer->is_token_literal(0, true)) { @@ -789,7 +772,7 @@ GDScriptParser::Node *GDScriptParser::_parse_expression(Node *p_parent, bool p_s if (lv->assignments == 0) { if (!lv->datatype.has_type) { _set_error("Using assignment with operation on a variable that was never assigned."); - return NULL; + return nullptr; } _add_warning(GDScriptWarning::UNASSIGNED_VARIABLE_OP_ASSIGN, -1, identifier.operator String()); } @@ -827,6 +810,7 @@ GDScriptParser::Node *GDScriptParser::_parse_expression(Node *p_parent, bool p_s //check from singletons ConstantNode *constant = alloc_node<ConstantNode>(); constant->value = GDScriptLanguage::get_singleton()->get_named_globals_map()[identifier]; + constant->datatype = _type_from_variant(constant->value); expr = constant; bfn = true; } @@ -837,6 +821,7 @@ GDScriptParser::Node *GDScriptParser::_parse_expression(Node *p_parent, bool p_s if (scr.is_valid() && scr->is_valid()) { ConstantNode *constant = alloc_node<ConstantNode>(); constant->value = scr; + constant->datatype = _type_from_variant(constant->value); expr = constant; bfn = true; } @@ -852,6 +837,7 @@ GDScriptParser::Node *GDScriptParser::_parse_expression(Node *p_parent, bool p_s if (parent_constants.has(identifier)) { ConstantNode *constant = alloc_node<ConstantNode>(); constant->value = parent_constants[identifier]; + constant->datatype = _type_from_variant(constant->value); expr = constant; bfn = true; } @@ -893,17 +879,24 @@ GDScriptParser::Node *GDScriptParser::_parse_expression(Node *p_parent, bool p_s } } else if (tokenizer->get_token() == GDScriptTokenizer::TK_OP_ADD || tokenizer->get_token() == GDScriptTokenizer::TK_OP_SUB || tokenizer->get_token() == GDScriptTokenizer::TK_OP_NOT || tokenizer->get_token() == GDScriptTokenizer::TK_OP_BIT_INVERT) { - //single prefix operators like !expr +expr -expr ++expr --expr alloc_node<OperatorNode>(); Expression e; e.is_op = true; switch (tokenizer->get_token()) { - case GDScriptTokenizer::TK_OP_ADD: e.op = OperatorNode::OP_POS; break; - case GDScriptTokenizer::TK_OP_SUB: e.op = OperatorNode::OP_NEG; break; - case GDScriptTokenizer::TK_OP_NOT: e.op = OperatorNode::OP_NOT; break; - case GDScriptTokenizer::TK_OP_BIT_INVERT: e.op = OperatorNode::OP_BIT_INVERT; break; + case GDScriptTokenizer::TK_OP_ADD: + e.op = OperatorNode::OP_POS; + break; + case GDScriptTokenizer::TK_OP_SUB: + e.op = OperatorNode::OP_NEG; + break; + case GDScriptTokenizer::TK_OP_NOT: + e.op = OperatorNode::OP_NOT; + break; + case GDScriptTokenizer::TK_OP_BIT_INVERT: + e.op = OperatorNode::OP_BIT_INVERT; + break; default: { } } @@ -912,7 +905,7 @@ GDScriptParser::Node *GDScriptParser::_parse_expression(Node *p_parent, bool p_s if (e.op != OperatorNode::OP_NOT && tokenizer->get_token() == GDScriptTokenizer::TK_OP_NOT) { _set_error("Misplaced 'not'."); - return NULL; + return nullptr; } expression.push_back(e); @@ -921,7 +914,7 @@ GDScriptParser::Node *GDScriptParser::_parse_expression(Node *p_parent, bool p_s /* Node *subexpr=_parse_expression(op,p_static); if (!subexpr) - return NULL; + return nullptr; op->arguments.push_back(subexpr); expr=op;*/ @@ -929,7 +922,7 @@ GDScriptParser::Node *GDScriptParser::_parse_expression(Node *p_parent, bool p_s // 'is' operator with built-in type if (!expr) { _set_error("Expected identifier before 'is' operator"); - return NULL; + return nullptr; } OperatorNode *op = alloc_node<OperatorNode>(); op->op = OperatorNode::OP_IS_BUILTIN; @@ -951,22 +944,19 @@ GDScriptParser::Node *GDScriptParser::_parse_expression(Node *p_parent, bool p_s bool expecting_comma = false; while (true) { - if (tokenizer->get_token() == GDScriptTokenizer::TK_EOF) { - _set_error("Unterminated array"); - return NULL; + return nullptr; } else if (tokenizer->get_token() == GDScriptTokenizer::TK_BRACKET_CLOSE) { tokenizer->advance(); break; } else if (tokenizer->get_token() == GDScriptTokenizer::TK_NEWLINE) { - tokenizer->advance(); //ignore newline } else if (tokenizer->get_token() == GDScriptTokenizer::TK_COMMA) { if (!expecting_comma) { _set_error("expression or ']' expected"); - return NULL; + return nullptr; } expecting_comma = false; @@ -975,11 +965,12 @@ GDScriptParser::Node *GDScriptParser::_parse_expression(Node *p_parent, bool p_s //parse expression if (expecting_comma) { _set_error("',' or ']' expected"); - return NULL; + return nullptr; } Node *n = _parse_expression(arr, p_static, p_allow_assign, p_parsing_constant); - if (!n) - return NULL; + if (!n) { + return nullptr; + } arr->elements.push_back(n); expecting_comma = true; } @@ -1001,81 +992,73 @@ GDScriptParser::Node *GDScriptParser::_parse_expression(Node *p_parent, bool p_s }; - Node *key = NULL; + Node *key = nullptr; Set<Variant> keys; DictExpect expecting = DICT_EXPECT_KEY; while (true) { - if (tokenizer->get_token() == GDScriptTokenizer::TK_EOF) { - _set_error("Unterminated dictionary"); - return NULL; + return nullptr; } else if (tokenizer->get_token() == GDScriptTokenizer::TK_CURLY_BRACKET_CLOSE) { - if (expecting == DICT_EXPECT_COLON) { _set_error("':' expected"); - return NULL; + return nullptr; } if (expecting == DICT_EXPECT_VALUE) { _set_error("value expected"); - return NULL; + return nullptr; } tokenizer->advance(); break; } else if (tokenizer->get_token() == GDScriptTokenizer::TK_NEWLINE) { - tokenizer->advance(); //ignore newline } else if (tokenizer->get_token() == GDScriptTokenizer::TK_COMMA) { - if (expecting == DICT_EXPECT_KEY) { _set_error("key or '}' expected"); - return NULL; + return nullptr; } if (expecting == DICT_EXPECT_VALUE) { _set_error("value expected"); - return NULL; + return nullptr; } if (expecting == DICT_EXPECT_COLON) { _set_error("':' expected"); - return NULL; + return nullptr; } expecting = DICT_EXPECT_KEY; tokenizer->advance(); //ignore newline } else if (tokenizer->get_token() == GDScriptTokenizer::TK_COLON) { - if (expecting == DICT_EXPECT_KEY) { _set_error("key or '}' expected"); - return NULL; + return nullptr; } if (expecting == DICT_EXPECT_VALUE) { _set_error("value expected"); - return NULL; + return nullptr; } if (expecting == DICT_EXPECT_COMMA) { _set_error("',' or '}' expected"); - return NULL; + return nullptr; } expecting = DICT_EXPECT_VALUE; tokenizer->advance(); //ignore newline } else { - if (expecting == DICT_EXPECT_COMMA) { _set_error("',' or '}' expected"); - return NULL; + return nullptr; } if (expecting == DICT_EXPECT_COLON) { _set_error("':' expected"); - return NULL; + return nullptr; } if (expecting == DICT_EXPECT_KEY) { - if (tokenizer->is_token_literal() && tokenizer->get_token(1) == GDScriptTokenizer::TK_OP_ASSIGN) { // We check with is_token_literal, as this allows us to use match/sync/etc. as a name //lua style identifier, easier to write @@ -1088,16 +1071,18 @@ GDScriptParser::Node *GDScriptParser::_parse_expression(Node *p_parent, bool p_s } else { //python/js style more flexible key = _parse_expression(dict, p_static, p_allow_assign, p_parsing_constant); - if (!key) - return NULL; + if (!key) { + return nullptr; + } expecting = DICT_EXPECT_COLON; } } if (expecting == DICT_EXPECT_VALUE) { Node *value = _parse_expression(dict, p_static, p_allow_assign, p_parsing_constant); - if (!value) - return NULL; + if (!value) { + return nullptr; + } expecting = DICT_EXPECT_COMMA; if (key->type == GDScriptParser::Node::TYPE_CONSTANT) { @@ -1105,7 +1090,7 @@ GDScriptParser::Node *GDScriptParser::_parse_expression(Node *p_parent, bool p_s if (keys.has(keyName)) { _set_error("Duplicate key found in Dictionary literal"); - return NULL; + return nullptr; } keys.insert(keyName); } @@ -1114,7 +1099,7 @@ GDScriptParser::Node *GDScriptParser::_parse_expression(Node *p_parent, bool p_s pair.key = key; pair.value = value; dict->elements.push_back(pair); - key = NULL; + key = nullptr; } } } @@ -1142,12 +1127,12 @@ GDScriptParser::Node *GDScriptParser::_parse_expression(Node *p_parent, bool p_s if (tokenizer->get_token() != GDScriptTokenizer::TK_PARENTHESIS_OPEN) { if (!is_completion) { _set_error("Expected '(' for parent function call."); - return NULL; + return nullptr; } } else { tokenizer->advance(); if (!_parse_arguments(op, op->arguments, p_static, false, p_parsing_constant)) { - return NULL; + return nullptr; } } @@ -1163,30 +1148,27 @@ GDScriptParser::Node *GDScriptParser::_parse_expression(Node *p_parent, bool p_s expr = tn; tokenizer->advance(); } else { - //find list [ or find dictionary { _set_error("Error parsing expression, misplaced: " + String(tokenizer->get_token_name(tokenizer->get_token()))); - return NULL; //nothing + return nullptr; //nothing } - ERR_FAIL_COND_V_MSG(!expr, NULL, "GDScriptParser bug, couldn't figure out what expression is."); + ERR_FAIL_COND_V_MSG(!expr, nullptr, "GDScriptParser bug, couldn't figure out what expression is."); /******************/ /* Parse Indexing */ /******************/ while (true) { - //expressions can be indexed any number of times if (tokenizer->get_token() == GDScriptTokenizer::TK_PERIOD) { - //indexing using "." if (tokenizer->get_token(1) != GDScriptTokenizer::TK_CURSOR && !tokenizer->is_token_literal(1)) { // We check with is_token_literal, as this allows us to use match/sync/etc. as a name _set_error("Expected identifier as member"); - return NULL; + return nullptr; } else if (tokenizer->get_token(2) == GDScriptTokenizer::TK_PARENTHESIS_OPEN) { //call!! OperatorNode *op = alloc_node<OperatorNode>(); @@ -1211,8 +1193,9 @@ GDScriptParser::Node *GDScriptParser::_parse_expression(Node *p_parent, bool p_s _make_completable_call(0); completion_node = op; } - if (!_parse_arguments(op, op->arguments, p_static, true, p_parsing_constant)) - return NULL; + if (!_parse_arguments(op, op->arguments, p_static, true, p_parsing_constant)) { + return nullptr; + } expr = op; } else { @@ -1224,7 +1207,6 @@ GDScriptParser::Node *GDScriptParser::_parse_expression(Node *p_parent, bool p_s StringName identifier; if (_get_completable_identifier(COMPLETION_INDEX, identifier)) { - if (identifier == StringName()) { identifier = "@temp"; //so it parses alright } @@ -1251,12 +1233,12 @@ GDScriptParser::Node *GDScriptParser::_parse_expression(Node *p_parent, bool p_s Node *subexpr = _parse_expression(op, p_static, p_allow_assign, p_parsing_constant); if (!subexpr) { - return NULL; + return nullptr; } if (tokenizer->get_token() != GDScriptTokenizer::TK_BRACKET_CLOSE) { _set_error("Expected ']'"); - return NULL; + return nullptr; } op->arguments.push_back(expr); @@ -1264,8 +1246,9 @@ GDScriptParser::Node *GDScriptParser::_parse_expression(Node *p_parent, bool p_s tokenizer->advance(1); expr = op; - } else + } else { break; + } } /*****************/ @@ -1276,12 +1259,12 @@ GDScriptParser::Node *GDScriptParser::_parse_expression(Node *p_parent, bool p_s if (tokenizer->get_token() == GDScriptTokenizer::TK_PR_AS) { if (has_casting) { _set_error("Unexpected 'as'."); - return NULL; + return nullptr; } CastNode *cn = alloc_node<CastNode>(); if (!_parse_type(cn->cast_type)) { _set_error("Expected type after 'as'."); - return NULL; + return nullptr; } has_casting = true; cn->source_node = expr; @@ -1313,31 +1296,61 @@ GDScriptParser::Node *GDScriptParser::_parse_expression(Node *p_parent, bool p_s #define _VALIDATE_ASSIGN \ if (!p_allow_assign || has_casting) { \ _set_error("Unexpected assign."); \ - return NULL; \ + return nullptr; \ } \ p_allow_assign = false; switch (tokenizer->get_token()) { //see operator - case GDScriptTokenizer::TK_OP_IN: op = OperatorNode::OP_IN; break; - case GDScriptTokenizer::TK_OP_EQUAL: op = OperatorNode::OP_EQUAL; break; - case GDScriptTokenizer::TK_OP_NOT_EQUAL: op = OperatorNode::OP_NOT_EQUAL; break; - case GDScriptTokenizer::TK_OP_LESS: op = OperatorNode::OP_LESS; break; - case GDScriptTokenizer::TK_OP_LESS_EQUAL: op = OperatorNode::OP_LESS_EQUAL; break; - case GDScriptTokenizer::TK_OP_GREATER: op = OperatorNode::OP_GREATER; break; - case GDScriptTokenizer::TK_OP_GREATER_EQUAL: op = OperatorNode::OP_GREATER_EQUAL; break; - case GDScriptTokenizer::TK_OP_AND: op = OperatorNode::OP_AND; break; - case GDScriptTokenizer::TK_OP_OR: op = OperatorNode::OP_OR; break; - case GDScriptTokenizer::TK_OP_ADD: op = OperatorNode::OP_ADD; break; - case GDScriptTokenizer::TK_OP_SUB: op = OperatorNode::OP_SUB; break; - case GDScriptTokenizer::TK_OP_MUL: op = OperatorNode::OP_MUL; break; - case GDScriptTokenizer::TK_OP_DIV: op = OperatorNode::OP_DIV; break; + case GDScriptTokenizer::TK_OP_IN: + op = OperatorNode::OP_IN; + break; + case GDScriptTokenizer::TK_OP_EQUAL: + op = OperatorNode::OP_EQUAL; + break; + case GDScriptTokenizer::TK_OP_NOT_EQUAL: + op = OperatorNode::OP_NOT_EQUAL; + break; + case GDScriptTokenizer::TK_OP_LESS: + op = OperatorNode::OP_LESS; + break; + case GDScriptTokenizer::TK_OP_LESS_EQUAL: + op = OperatorNode::OP_LESS_EQUAL; + break; + case GDScriptTokenizer::TK_OP_GREATER: + op = OperatorNode::OP_GREATER; + break; + case GDScriptTokenizer::TK_OP_GREATER_EQUAL: + op = OperatorNode::OP_GREATER_EQUAL; + break; + case GDScriptTokenizer::TK_OP_AND: + op = OperatorNode::OP_AND; + break; + case GDScriptTokenizer::TK_OP_OR: + op = OperatorNode::OP_OR; + break; + case GDScriptTokenizer::TK_OP_ADD: + op = OperatorNode::OP_ADD; + break; + case GDScriptTokenizer::TK_OP_SUB: + op = OperatorNode::OP_SUB; + break; + case GDScriptTokenizer::TK_OP_MUL: + op = OperatorNode::OP_MUL; + break; + case GDScriptTokenizer::TK_OP_DIV: + op = OperatorNode::OP_DIV; + break; case GDScriptTokenizer::TK_OP_MOD: op = OperatorNode::OP_MOD; break; //case GDScriptTokenizer::TK_OP_NEG: op=OperatorNode::OP_NEG ; break; - case GDScriptTokenizer::TK_OP_SHIFT_LEFT: op = OperatorNode::OP_SHIFT_LEFT; break; - case GDScriptTokenizer::TK_OP_SHIFT_RIGHT: op = OperatorNode::OP_SHIFT_RIGHT; break; + case GDScriptTokenizer::TK_OP_SHIFT_LEFT: + op = OperatorNode::OP_SHIFT_LEFT; + break; + case GDScriptTokenizer::TK_OP_SHIFT_RIGHT: + op = OperatorNode::OP_SHIFT_RIGHT; + break; case GDScriptTokenizer::TK_OP_ASSIGN: { _VALIDATE_ASSIGN op = OperatorNode::OP_ASSIGN; @@ -1354,23 +1367,57 @@ GDScriptParser::Node *GDScriptParser::_parse_expression(Node *p_parent, bool p_s } } break; - case GDScriptTokenizer::TK_OP_ASSIGN_ADD: _VALIDATE_ASSIGN op = OperatorNode::OP_ASSIGN_ADD; break; - case GDScriptTokenizer::TK_OP_ASSIGN_SUB: _VALIDATE_ASSIGN op = OperatorNode::OP_ASSIGN_SUB; break; - case GDScriptTokenizer::TK_OP_ASSIGN_MUL: _VALIDATE_ASSIGN op = OperatorNode::OP_ASSIGN_MUL; break; - case GDScriptTokenizer::TK_OP_ASSIGN_DIV: _VALIDATE_ASSIGN op = OperatorNode::OP_ASSIGN_DIV; break; - case GDScriptTokenizer::TK_OP_ASSIGN_MOD: _VALIDATE_ASSIGN op = OperatorNode::OP_ASSIGN_MOD; break; - case GDScriptTokenizer::TK_OP_ASSIGN_SHIFT_LEFT: _VALIDATE_ASSIGN op = OperatorNode::OP_ASSIGN_SHIFT_LEFT; break; - case GDScriptTokenizer::TK_OP_ASSIGN_SHIFT_RIGHT: _VALIDATE_ASSIGN op = OperatorNode::OP_ASSIGN_SHIFT_RIGHT; break; - case GDScriptTokenizer::TK_OP_ASSIGN_BIT_AND: _VALIDATE_ASSIGN op = OperatorNode::OP_ASSIGN_BIT_AND; break; - case GDScriptTokenizer::TK_OP_ASSIGN_BIT_OR: _VALIDATE_ASSIGN op = OperatorNode::OP_ASSIGN_BIT_OR; break; - case GDScriptTokenizer::TK_OP_ASSIGN_BIT_XOR: _VALIDATE_ASSIGN op = OperatorNode::OP_ASSIGN_BIT_XOR; break; - case GDScriptTokenizer::TK_OP_BIT_AND: op = OperatorNode::OP_BIT_AND; break; - case GDScriptTokenizer::TK_OP_BIT_OR: op = OperatorNode::OP_BIT_OR; break; - case GDScriptTokenizer::TK_OP_BIT_XOR: op = OperatorNode::OP_BIT_XOR; break; - case GDScriptTokenizer::TK_PR_IS: op = OperatorNode::OP_IS; break; - case GDScriptTokenizer::TK_CF_IF: op = OperatorNode::OP_TERNARY_IF; break; - case GDScriptTokenizer::TK_CF_ELSE: op = OperatorNode::OP_TERNARY_ELSE; break; - default: valid = false; break; + case GDScriptTokenizer::TK_OP_ASSIGN_ADD: + _VALIDATE_ASSIGN op = OperatorNode::OP_ASSIGN_ADD; + break; + case GDScriptTokenizer::TK_OP_ASSIGN_SUB: + _VALIDATE_ASSIGN op = OperatorNode::OP_ASSIGN_SUB; + break; + case GDScriptTokenizer::TK_OP_ASSIGN_MUL: + _VALIDATE_ASSIGN op = OperatorNode::OP_ASSIGN_MUL; + break; + case GDScriptTokenizer::TK_OP_ASSIGN_DIV: + _VALIDATE_ASSIGN op = OperatorNode::OP_ASSIGN_DIV; + break; + case GDScriptTokenizer::TK_OP_ASSIGN_MOD: + _VALIDATE_ASSIGN op = OperatorNode::OP_ASSIGN_MOD; + break; + case GDScriptTokenizer::TK_OP_ASSIGN_SHIFT_LEFT: + _VALIDATE_ASSIGN op = OperatorNode::OP_ASSIGN_SHIFT_LEFT; + break; + case GDScriptTokenizer::TK_OP_ASSIGN_SHIFT_RIGHT: + _VALIDATE_ASSIGN op = OperatorNode::OP_ASSIGN_SHIFT_RIGHT; + break; + case GDScriptTokenizer::TK_OP_ASSIGN_BIT_AND: + _VALIDATE_ASSIGN op = OperatorNode::OP_ASSIGN_BIT_AND; + break; + case GDScriptTokenizer::TK_OP_ASSIGN_BIT_OR: + _VALIDATE_ASSIGN op = OperatorNode::OP_ASSIGN_BIT_OR; + break; + case GDScriptTokenizer::TK_OP_ASSIGN_BIT_XOR: + _VALIDATE_ASSIGN op = OperatorNode::OP_ASSIGN_BIT_XOR; + break; + case GDScriptTokenizer::TK_OP_BIT_AND: + op = OperatorNode::OP_BIT_AND; + break; + case GDScriptTokenizer::TK_OP_BIT_OR: + op = OperatorNode::OP_BIT_OR; + break; + case GDScriptTokenizer::TK_OP_BIT_XOR: + op = OperatorNode::OP_BIT_XOR; + break; + case GDScriptTokenizer::TK_PR_IS: + op = OperatorNode::OP_IS; + break; + case GDScriptTokenizer::TK_CF_IF: + op = OperatorNode::OP_TERNARY_IF; + break; + case GDScriptTokenizer::TK_CF_ELSE: + op = OperatorNode::OP_TERNARY_ELSE; + break; + default: + valid = false; + break; } if (valid) { @@ -1386,16 +1433,13 @@ GDScriptParser::Node *GDScriptParser::_parse_expression(Node *p_parent, bool p_s /* Reduce the set set of expressions and place them in an operator tree, respecting precedence */ while (expression.size() > 1) { - int next_op = -1; int min_priority = 0xFFFFF; bool is_unary = false; bool is_ternary = false; for (int i = 0; i < expression.size(); i++) { - if (!expression[i].is_op) { - continue; } @@ -1407,7 +1451,6 @@ GDScriptParser::Node *GDScriptParser::_parse_expression(Node *p_parent, bool p_s bool right_to_left = false; switch (expression[i].op) { - case OperatorNode::OP_IS: case OperatorNode::OP_IS_BUILTIN: priority = -1; @@ -1423,36 +1466,74 @@ GDScriptParser::Node *GDScriptParser::_parse_expression(Node *p_parent, bool p_s unary = true; break; - case OperatorNode::OP_MUL: priority = 2; break; - case OperatorNode::OP_DIV: priority = 2; break; - case OperatorNode::OP_MOD: priority = 2; break; + case OperatorNode::OP_MUL: + priority = 2; + break; + case OperatorNode::OP_DIV: + priority = 2; + break; + case OperatorNode::OP_MOD: + priority = 2; + break; - case OperatorNode::OP_ADD: priority = 3; break; - case OperatorNode::OP_SUB: priority = 3; break; + case OperatorNode::OP_ADD: + priority = 3; + break; + case OperatorNode::OP_SUB: + priority = 3; + break; - case OperatorNode::OP_SHIFT_LEFT: priority = 4; break; - case OperatorNode::OP_SHIFT_RIGHT: priority = 4; break; + case OperatorNode::OP_SHIFT_LEFT: + priority = 4; + break; + case OperatorNode::OP_SHIFT_RIGHT: + priority = 4; + break; - case OperatorNode::OP_BIT_AND: priority = 5; break; - case OperatorNode::OP_BIT_XOR: priority = 6; break; - case OperatorNode::OP_BIT_OR: priority = 7; break; + case OperatorNode::OP_BIT_AND: + priority = 5; + break; + case OperatorNode::OP_BIT_XOR: + priority = 6; + break; + case OperatorNode::OP_BIT_OR: + priority = 7; + break; - case OperatorNode::OP_LESS: priority = 8; break; - case OperatorNode::OP_LESS_EQUAL: priority = 8; break; - case OperatorNode::OP_GREATER: priority = 8; break; - case OperatorNode::OP_GREATER_EQUAL: priority = 8; break; + case OperatorNode::OP_LESS: + priority = 8; + break; + case OperatorNode::OP_LESS_EQUAL: + priority = 8; + break; + case OperatorNode::OP_GREATER: + priority = 8; + break; + case OperatorNode::OP_GREATER_EQUAL: + priority = 8; + break; - case OperatorNode::OP_EQUAL: priority = 8; break; - case OperatorNode::OP_NOT_EQUAL: priority = 8; break; + case OperatorNode::OP_EQUAL: + priority = 8; + break; + case OperatorNode::OP_NOT_EQUAL: + priority = 8; + break; - case OperatorNode::OP_IN: priority = 10; break; + case OperatorNode::OP_IN: + priority = 10; + break; case OperatorNode::OP_NOT: priority = 11; unary = true; break; - case OperatorNode::OP_AND: priority = 12; break; - case OperatorNode::OP_OR: priority = 13; break; + case OperatorNode::OP_AND: + priority = 12; + break; + case OperatorNode::OP_OR: + priority = 13; + break; case OperatorNode::OP_TERNARY_IF: priority = 14; @@ -1465,21 +1546,43 @@ GDScriptParser::Node *GDScriptParser::_parse_expression(Node *p_parent, bool p_s // Rigth-to-left should be false in this case, otherwise it would always error. break; - case OperatorNode::OP_ASSIGN: priority = 15; break; - case OperatorNode::OP_ASSIGN_ADD: priority = 15; break; - case OperatorNode::OP_ASSIGN_SUB: priority = 15; break; - case OperatorNode::OP_ASSIGN_MUL: priority = 15; break; - case OperatorNode::OP_ASSIGN_DIV: priority = 15; break; - case OperatorNode::OP_ASSIGN_MOD: priority = 15; break; - case OperatorNode::OP_ASSIGN_SHIFT_LEFT: priority = 15; break; - case OperatorNode::OP_ASSIGN_SHIFT_RIGHT: priority = 15; break; - case OperatorNode::OP_ASSIGN_BIT_AND: priority = 15; break; - case OperatorNode::OP_ASSIGN_BIT_OR: priority = 15; break; - case OperatorNode::OP_ASSIGN_BIT_XOR: priority = 15; break; + case OperatorNode::OP_ASSIGN: + priority = 15; + break; + case OperatorNode::OP_ASSIGN_ADD: + priority = 15; + break; + case OperatorNode::OP_ASSIGN_SUB: + priority = 15; + break; + case OperatorNode::OP_ASSIGN_MUL: + priority = 15; + break; + case OperatorNode::OP_ASSIGN_DIV: + priority = 15; + break; + case OperatorNode::OP_ASSIGN_MOD: + priority = 15; + break; + case OperatorNode::OP_ASSIGN_SHIFT_LEFT: + priority = 15; + break; + case OperatorNode::OP_ASSIGN_SHIFT_RIGHT: + priority = 15; + break; + case OperatorNode::OP_ASSIGN_BIT_AND: + priority = 15; + break; + case OperatorNode::OP_ASSIGN_BIT_OR: + priority = 15; + break; + case OperatorNode::OP_ASSIGN_BIT_XOR: + priority = 15; + break; default: { _set_error("GDScriptParser bug, invalid operator in expression: " + itos(expression[i].op)); - return NULL; + return nullptr; } } @@ -1488,7 +1591,7 @@ GDScriptParser::Node *GDScriptParser::_parse_expression(Node *p_parent, bool p_s // <= is used for right to left if (error) { _set_error("Unexpected operator"); - return NULL; + return nullptr; } next_op = i; min_priority = priority; @@ -1498,28 +1601,24 @@ GDScriptParser::Node *GDScriptParser::_parse_expression(Node *p_parent, bool p_s } if (next_op == -1) { - _set_error("Yet another parser bug...."); - ERR_FAIL_V(NULL); + ERR_FAIL_V(nullptr); } // OK! create operator.. if (is_unary) { - int expr_pos = next_op; while (expression[expr_pos].is_op) { - expr_pos++; if (expr_pos == expression.size()) { //can happen.. _set_error("Unexpected end of expression..."); - return NULL; + return nullptr; } } - //consecutively do unary opeators + //consecutively do unary operators for (int i = expr_pos - 1; i >= next_op; i--) { - OperatorNode *op = alloc_node<OperatorNode>(); op->op = expression[i].op; op->arguments.push_back(expression[i + 1].node); @@ -1532,16 +1631,16 @@ GDScriptParser::Node *GDScriptParser::_parse_expression(Node *p_parent, bool p_s } else if (is_ternary) { if (next_op < 1 || next_op >= (expression.size() - 1)) { _set_error("Parser bug..."); - ERR_FAIL_V(NULL); + ERR_FAIL_V(nullptr); } if (next_op >= (expression.size() - 2) || expression[next_op + 2].op != OperatorNode::OP_TERNARY_ELSE) { _set_error("Expected else after ternary if."); - return NULL; + return nullptr; } if (next_op >= (expression.size() - 3)) { _set_error("Expected value after ternary else."); - return NULL; + return nullptr; } OperatorNode *op = alloc_node<OperatorNode>(); @@ -1549,9 +1648,8 @@ GDScriptParser::Node *GDScriptParser::_parse_expression(Node *p_parent, bool p_s op->line = op_line; //line might have been changed from a \n if (expression[next_op - 1].is_op) { - _set_error("Parser bug..."); - ERR_FAIL_V(NULL); + ERR_FAIL_V(nullptr); } if (expression[next_op + 1].is_op) { @@ -1561,7 +1659,7 @@ GDScriptParser::Node *GDScriptParser::_parse_expression(Node *p_parent, bool p_s // due to how precedence works, unaries will always disappear first _set_error("Unexpected two consecutive operators after ternary if."); - return NULL; + return nullptr; } if (expression[next_op + 3].is_op) { @@ -1571,7 +1669,7 @@ GDScriptParser::Node *GDScriptParser::_parse_expression(Node *p_parent, bool p_s // due to how precedence works, unaries will always disappear first _set_error("Unexpected two consecutive operators after ternary else."); - return NULL; + return nullptr; } op->arguments.push_back(expression[next_op + 1].node); //next expression goes as first @@ -1585,10 +1683,9 @@ GDScriptParser::Node *GDScriptParser::_parse_expression(Node *p_parent, bool p_s expression.remove(next_op); expression.remove(next_op); } else { - if (next_op < 1 || next_op >= (expression.size() - 1)) { _set_error("Parser bug..."); - ERR_FAIL_V(NULL); + ERR_FAIL_V(nullptr); } OperatorNode *op = alloc_node<OperatorNode>(); @@ -1596,9 +1693,8 @@ GDScriptParser::Node *GDScriptParser::_parse_expression(Node *p_parent, bool p_s op->line = op_line; //line might have been changed from a \n if (expression[next_op - 1].is_op) { - _set_error("Parser bug..."); - ERR_FAIL_V(NULL); + ERR_FAIL_V(nullptr); } if (expression[next_op + 1].is_op) { @@ -1608,7 +1704,7 @@ GDScriptParser::Node *GDScriptParser::_parse_expression(Node *p_parent, bool p_s // due to how precedence works, unaries will always disappear first _set_error("Unexpected two consecutive operators."); - return NULL; + return nullptr; } op->arguments.push_back(expression[next_op - 1].node); //expression goes as left @@ -1625,23 +1721,20 @@ GDScriptParser::Node *GDScriptParser::_parse_expression(Node *p_parent, bool p_s } GDScriptParser::Node *GDScriptParser::_reduce_expression(Node *p_node, bool p_to_const) { - switch (p_node->type) { - case Node::TYPE_BUILT_IN_FUNCTION: { //many may probably be optimizable return p_node; } break; case Node::TYPE_ARRAY: { - ArrayNode *an = static_cast<ArrayNode *>(p_node); bool all_constants = true; for (int i = 0; i < an->elements.size(); i++) { - an->elements.write[i] = _reduce_expression(an->elements[i], p_to_const); - if (an->elements[i]->type != Node::TYPE_CONSTANT) + if (an->elements[i]->type != Node::TYPE_CONSTANT) { all_constants = false; + } } if (all_constants && p_to_const) { @@ -1663,18 +1756,18 @@ GDScriptParser::Node *GDScriptParser::_reduce_expression(Node *p_node, bool p_to } break; case Node::TYPE_DICTIONARY: { - DictionaryNode *dn = static_cast<DictionaryNode *>(p_node); bool all_constants = true; for (int i = 0; i < dn->elements.size(); i++) { - dn->elements.write[i].key = _reduce_expression(dn->elements[i].key, p_to_const); - if (dn->elements[i].key->type != Node::TYPE_CONSTANT) + if (dn->elements[i].key->type != Node::TYPE_CONSTANT) { all_constants = false; + } dn->elements.write[i].value = _reduce_expression(dn->elements[i].value, p_to_const); - if (dn->elements[i].value->type != Node::TYPE_CONSTANT) + if (dn->elements[i].value->type != Node::TYPE_CONSTANT) { all_constants = false; + } } if (all_constants && p_to_const) { @@ -1697,14 +1790,12 @@ GDScriptParser::Node *GDScriptParser::_reduce_expression(Node *p_node, bool p_to } break; case Node::TYPE_OPERATOR: { - OperatorNode *op = static_cast<OperatorNode *>(p_node); bool all_constants = true; int last_not_constant = -1; for (int i = 0; i < op->arguments.size(); i++) { - op->arguments.write[i] = _reduce_expression(op->arguments[i], p_to_const); if (op->arguments[i]->type != Node::TYPE_CONSTANT) { all_constants = false; @@ -1723,15 +1814,12 @@ GDScriptParser::Node *GDScriptParser::_reduce_expression(Node *p_node, bool p_to } else if (op->op == OperatorNode::OP_CALL) { //can reduce base type constructors if ((op->arguments[0]->type == Node::TYPE_TYPE || (op->arguments[0]->type == Node::TYPE_BUILT_IN_FUNCTION && GDScriptFunctions::is_deterministic(static_cast<BuiltInFunctionNode *>(op->arguments[0])->function))) && last_not_constant == 0) { - //native type constructor or intrinsic function - const Variant **vptr = NULL; + const Variant **vptr = nullptr; Vector<Variant *> ptrs; if (op->arguments.size() > 1) { - ptrs.resize(op->arguments.size() - 1); for (int i = 0; i < ptrs.size(); i++) { - ConstantNode *cn = static_cast<ConstantNode *>(op->arguments[i + 1]); ptrs.write[i] = &cn->value; } @@ -1752,7 +1840,6 @@ GDScriptParser::Node *GDScriptParser::_reduce_expression(Node *p_node, bool p_to } if (ce.error != Callable::CallError::CALL_OK) { - String errwhere; if (op->arguments[0]->type == Node::TYPE_TYPE) { TypeNode *tn = static_cast<TypeNode *>(op->arguments[0]); @@ -1764,18 +1851,14 @@ GDScriptParser::Node *GDScriptParser::_reduce_expression(Node *p_node, bool p_to } switch (ce.error) { - case Callable::CallError::CALL_ERROR_INVALID_ARGUMENT: { - _set_error("Invalid argument (#" + itos(ce.argument + 1) + ") for " + errwhere + "."); } break; case Callable::CallError::CALL_ERROR_TOO_MANY_ARGUMENTS: { - _set_error("Too many arguments for " + errwhere + "."); } break; case Callable::CallError::CALL_ERROR_TOO_FEW_ARGUMENTS: { - _set_error("Too few arguments for " + errwhere + "."); } break; default: { @@ -1804,7 +1887,6 @@ GDScriptParser::Node *GDScriptParser::_reduce_expression(Node *p_node, bool p_to //can reduce indices into constant arrays or dictionaries if (all_constants) { - ConstantNode *ca = static_cast<ConstantNode *>(op->arguments[0]); ConstantNode *cb = static_cast<ConstantNode *>(op->arguments[1]); @@ -1826,9 +1908,7 @@ GDScriptParser::Node *GDScriptParser::_reduce_expression(Node *p_node, bool p_to return op; } else if (op->op == OperatorNode::OP_INDEX_NAMED) { - if (op->arguments[0]->type == Node::TYPE_CONSTANT && op->arguments[1]->type == Node::TYPE_IDENTIFIER) { - ConstantNode *ca = static_cast<ConstantNode *>(op->arguments[0]); IdentifierNode *ib = static_cast<IdentifierNode *>(op->arguments[1]); @@ -1851,7 +1931,6 @@ GDScriptParser::Node *GDScriptParser::_reduce_expression(Node *p_node, bool p_to //validate assignment (don't assign to constant expression switch (op->op) { - case OperatorNode::OP_ASSIGN: case OperatorNode::OP_ASSIGN_ADD: case OperatorNode::OP_ASSIGN_SUB: @@ -1863,7 +1942,6 @@ GDScriptParser::Node *GDScriptParser::_reduce_expression(Node *p_node, bool p_to case OperatorNode::OP_ASSIGN_BIT_AND: case OperatorNode::OP_ASSIGN_BIT_OR: case OperatorNode::OP_ASSIGN_BIT_XOR: { - if (op->arguments[0]->type == Node::TYPE_CONSTANT) { _set_error("Can't assign to constant", tokenizer->get_token_line() - 1); error_line = op->line; @@ -1889,8 +1967,9 @@ GDScriptParser::Node *GDScriptParser::_reduce_expression(Node *p_node, bool p_to } } //now se if all are constants - if (!all_constants) + if (!all_constants) { return op; //nothing to reduce from here on + } #define _REDUCE_UNARY(m_vop) \ bool valid = false; \ Variant res; \ @@ -1920,7 +1999,6 @@ GDScriptParser::Node *GDScriptParser::_reduce_expression(Node *p_node, bool p_to return cn; switch (op->op) { - //unary operators case OperatorNode::OP_NEG: { _REDUCE_UNARY(Variant::OP_NEGATE); @@ -2012,18 +2090,53 @@ GDScriptParser::Node *GDScriptParser::_reduce_expression(Node *p_node, bool p_to } GDScriptParser::Node *GDScriptParser::_parse_and_reduce_expression(Node *p_parent, bool p_static, bool p_reduce_const, bool p_allow_assign) { - Node *expr = _parse_expression(p_parent, p_static, p_allow_assign, p_reduce_const); - if (!expr || error_set) - return NULL; + if (!expr || error_set) { + return nullptr; + } expr = _reduce_expression(expr, p_reduce_const); - if (!expr || error_set) - return NULL; + if (!expr || error_set) { + return nullptr; + } return expr; } -bool GDScriptParser::_recover_from_completion() { +bool GDScriptParser::_reduce_export_var_type(Variant &p_value, int p_line) { + if (p_value.get_type() == Variant::ARRAY) { + Array arr = p_value; + for (int i = 0; i < arr.size(); i++) { + if (!_reduce_export_var_type(arr[i], p_line)) { + return false; + } + } + return true; + } + + if (p_value.get_type() == Variant::DICTIONARY) { + Dictionary dict = p_value; + for (int i = 0; i < dict.size(); i++) { + Variant value = dict.get_value_at_index(i); + if (!_reduce_export_var_type(value, p_line)) { + return false; + } + } + return true; + } + + // validate type + DataType type = _type_from_variant(p_value); + if (type.kind == DataType::BUILTIN) { + return true; + } else if (type.kind == DataType::NATIVE) { + if (ClassDB::is_parent_class(type.native_type, "Resource")) { + return true; + } + } + _set_error("Invalid export type. Only built-in and native resource types can be exported.", p_line); + return false; +} +bool GDScriptParser::_recover_from_completion() { if (!completion_found) { return false; //can't recover if no completion } @@ -2041,15 +2154,15 @@ bool GDScriptParser::_recover_from_completion() { } GDScriptParser::PatternNode *GDScriptParser::_parse_pattern(bool p_static) { - PatternNode *pattern = alloc_node<PatternNode>(); GDScriptTokenizer::Token token = tokenizer->get_token(); - if (error_set) - return NULL; + if (error_set) { + return nullptr; + } if (token == GDScriptTokenizer::TK_EOF) { - return NULL; + return nullptr; } switch (token) { @@ -2058,7 +2171,6 @@ GDScriptParser::PatternNode *GDScriptParser::_parse_pattern(bool p_static) { tokenizer->advance(); pattern->pt_type = GDScriptParser::PatternNode::PT_ARRAY; while (true) { - if (tokenizer->get_token() == GDScriptTokenizer::TK_BRACKET_CLOSE) { tokenizer->advance(); break; @@ -2078,13 +2190,13 @@ GDScriptParser::PatternNode *GDScriptParser::_parse_pattern(bool p_static) { break; } else { _set_error("'..' pattern only allowed at the end of an array pattern"); - return NULL; + return nullptr; } } PatternNode *sub_pattern = _parse_pattern(p_static); if (!sub_pattern) { - return NULL; + return nullptr; } pattern->array.push_back(sub_pattern); @@ -2097,7 +2209,7 @@ GDScriptParser::PatternNode *GDScriptParser::_parse_pattern(bool p_static) { break; } else { _set_error("Not a valid pattern"); - return NULL; + return nullptr; } } } break; @@ -2106,7 +2218,7 @@ GDScriptParser::PatternNode *GDScriptParser::_parse_pattern(bool p_static) { tokenizer->advance(); if (!tokenizer->is_token_literal()) { _set_error("Expected identifier for binding variable name."); - return NULL; + return nullptr; } pattern->pt_type = GDScriptParser::PatternNode::PT_BIND; pattern->bind = tokenizer->get_token_literal(); @@ -2115,7 +2227,7 @@ GDScriptParser::PatternNode *GDScriptParser::_parse_pattern(bool p_static) { while (bl) { if (bl->variables.has(pattern->bind)) { _set_error("Binding name of '" + pattern->bind.operator String() + "' is already declared in this scope."); - return NULL; + return nullptr; } bl = bl->parent_block; } @@ -2130,7 +2242,6 @@ GDScriptParser::PatternNode *GDScriptParser::_parse_pattern(bool p_static) { tokenizer->advance(); pattern->pt_type = GDScriptParser::PatternNode::PT_DICTIONARY; while (true) { - if (tokenizer->get_token() == GDScriptTokenizer::TK_CURLY_BRACKET_CLOSE) { tokenizer->advance(); break; @@ -2150,19 +2261,19 @@ GDScriptParser::PatternNode *GDScriptParser::_parse_pattern(bool p_static) { break; } else { _set_error("'..' pattern only allowed at the end of a dictionary pattern"); - return NULL; + return nullptr; } } Node *key = _parse_and_reduce_expression(pattern, p_static); if (!key) { _set_error("Not a valid key in pattern"); - return NULL; + return nullptr; } if (key->type != GDScriptParser::Node::TYPE_CONSTANT) { _set_error("Not a constant expression as key"); - return NULL; + return nullptr; } if (tokenizer->get_token() == GDScriptTokenizer::TK_COLON) { @@ -2171,12 +2282,12 @@ GDScriptParser::PatternNode *GDScriptParser::_parse_pattern(bool p_static) { PatternNode *value = _parse_pattern(p_static); if (!value) { _set_error("Expected pattern in dictionary value"); - return NULL; + return nullptr; } pattern->dictionary.insert(static_cast<ConstantNode *>(key), value); } else { - pattern->dictionary.insert(static_cast<ConstantNode *>(key), NULL); + pattern->dictionary.insert(static_cast<ConstantNode *>(key), nullptr); } if (tokenizer->get_token() == GDScriptTokenizer::TK_COMMA) { @@ -2187,7 +2298,7 @@ GDScriptParser::PatternNode *GDScriptParser::_parse_pattern(bool p_static) { break; } else { _set_error("Not a valid pattern"); - return NULL; + return nullptr; } } } break; @@ -2200,7 +2311,7 @@ GDScriptParser::PatternNode *GDScriptParser::_parse_pattern(bool p_static) { Node *value = _parse_and_reduce_expression(pattern, p_static); if (!value) { _set_error("Expect constant expression or variables in a pattern"); - return NULL; + return nullptr; } if (value->type == Node::TYPE_OPERATOR) { @@ -2212,19 +2323,19 @@ GDScriptParser::PatternNode *GDScriptParser::_parse_pattern(bool p_static) { if (op_node->op != OperatorNode::OP_INDEX_NAMED) { _set_error("Invalid operator in pattern. Only index (`A.B`) is allowed"); - return NULL; + return nullptr; } current_value = op_node->arguments[0]; } if (current_value->type != Node::TYPE_IDENTIFIER) { _set_error("Only constant expression or variables allowed in a pattern"); - return NULL; + return nullptr; } } else if (value->type != Node::TYPE_IDENTIFIER && value->type != Node::TYPE_CONSTANT) { _set_error("Only constant expressions or variables allowed in a pattern"); - return NULL; + return nullptr; } pattern->pt_type = PatternNode::PT_CONSTANT; @@ -2243,13 +2354,14 @@ void GDScriptParser::_parse_pattern_block(BlockNode *p_block, Vector<PatternBran bool catch_all_appeared = false; while (true) { - - while (tokenizer->get_token() == GDScriptTokenizer::TK_NEWLINE && _parse_newline()) + while (tokenizer->get_token() == GDScriptTokenizer::TK_NEWLINE && _parse_newline()) { ; + } // GDScriptTokenizer::Token token = tokenizer->get_token(); - if (error_set) + if (error_set) { return; + } if (current_level.indent > indent_level.back()->get().indent) { break; // go back a level @@ -2321,18 +2433,16 @@ void GDScriptParser::_parse_pattern_block(BlockNode *p_block, Vector<PatternBran } void GDScriptParser::_generate_pattern(PatternNode *p_pattern, Node *p_node_to_match, Node *&p_resulting_node, Map<StringName, Node *> &p_bindings) { - const DataType &to_match_type = p_node_to_match->get_datatype(); switch (p_pattern->pt_type) { case PatternNode::PT_CONSTANT: { - DataType pattern_type = _reduce_node_type(p_pattern->constant); if (error_set) { return; } - OperatorNode *type_comp = NULL; + OperatorNode *type_comp = nullptr; // static type check if possible if (pattern_type.has_type && to_match_type.has_type) { @@ -2386,10 +2496,10 @@ void GDScriptParser::_generate_pattern(PatternNode *p_pattern, Node *p_node_to_m // a bind always matches ConstantNode *true_value = alloc_node<ConstantNode>(); true_value->value = Variant(true); + true_value->datatype = _type_from_variant(true_value->value); p_resulting_node = true_value; } break; case PatternNode::PT_ARRAY: { - bool open_ended = false; if (p_pattern->array.size() > 0) { @@ -2402,7 +2512,7 @@ void GDScriptParser::_generate_pattern(PatternNode *p_pattern, Node *p_node_to_m // typeof(value_to_match) == TYPE_ARRAY && value_to_match.size() == length { - OperatorNode *type_comp = NULL; + OperatorNode *type_comp = nullptr; // static type check if possible if (to_match_type.has_type) { // must be an array @@ -2432,6 +2542,7 @@ void GDScriptParser::_generate_pattern(PatternNode *p_pattern, Node *p_node_to_m // size ConstantNode *length = alloc_node<ConstantNode>(); length->value = Variant(open_ended ? p_pattern->array.size() - 1 : p_pattern->array.size()); + length->datatype = _type_from_variant(length->value); OperatorNode *call = alloc_node<OperatorNode>(); call->op = OperatorNode::OP_CALL; @@ -2461,10 +2572,11 @@ void GDScriptParser::_generate_pattern(PatternNode *p_pattern, Node *p_node_to_m for (int i = 0; i < p_pattern->array.size(); i++) { PatternNode *pattern = p_pattern->array[i]; - Node *condition = NULL; + Node *condition = nullptr; ConstantNode *index = alloc_node<ConstantNode>(); index->value = Variant(i); + index->datatype = _type_from_variant(index->value); OperatorNode *indexed_value = alloc_node<OperatorNode>(); indexed_value->op = OperatorNode::OP_INDEX; @@ -2484,7 +2596,6 @@ void GDScriptParser::_generate_pattern(PatternNode *p_pattern, Node *p_node_to_m } break; case PatternNode::PT_DICTIONARY: { - bool open_ended = false; if (p_pattern->array.size() > 0) { @@ -2495,7 +2606,7 @@ void GDScriptParser::_generate_pattern(PatternNode *p_pattern, Node *p_node_to_m // typeof(value_to_match) == TYPE_DICTIONARY && value_to_match.size() == length { - OperatorNode *type_comp = NULL; + OperatorNode *type_comp = nullptr; // static type check if possible if (to_match_type.has_type) { // must be an dictionary @@ -2525,6 +2636,7 @@ void GDScriptParser::_generate_pattern(PatternNode *p_pattern, Node *p_node_to_m // size ConstantNode *length = alloc_node<ConstantNode>(); length->value = Variant(open_ended ? p_pattern->dictionary.size() - 1 : p_pattern->dictionary.size()); + length->datatype = _type_from_variant(length->value); OperatorNode *call = alloc_node<OperatorNode>(); call->op = OperatorNode::OP_CALL; @@ -2552,8 +2664,7 @@ void GDScriptParser::_generate_pattern(PatternNode *p_pattern, Node *p_node_to_m } for (Map<ConstantNode *, PatternNode *>::Element *e = p_pattern->dictionary.front(); e; e = e->next()) { - - Node *condition = NULL; + Node *condition = nullptr; // check for has, then for pattern @@ -2567,7 +2678,6 @@ void GDScriptParser::_generate_pattern(PatternNode *p_pattern, Node *p_node_to_m has_call->arguments.push_back(e->key()); if (e->value()) { - OperatorNode *indexed_value = alloc_node<OperatorNode>(); indexed_value->op = OperatorNode::OP_INDEX; indexed_value->arguments.push_back(p_node_to_match); @@ -2601,10 +2711,10 @@ void GDScriptParser::_generate_pattern(PatternNode *p_pattern, Node *p_node_to_m // simply generate a `true` ConstantNode *true_value = alloc_node<ConstantNode>(); true_value->value = Variant(true); + true_value->datatype = _type_from_variant(true_value->value); p_resulting_node = true_value; } break; default: { - } break; } } @@ -2625,11 +2735,10 @@ void GDScriptParser::_transform_match_statment(MatchNode *p_match_statement) { } for (int i = 0; i < p_match_statement->branches.size(); i++) { - PatternBranchNode *branch = p_match_statement->branches[i]; MatchNode::CompiledPatternBranch compiled_branch; - compiled_branch.compiled_pattern = NULL; + compiled_branch.compiled_pattern = nullptr; Map<StringName, Node *> binding; @@ -2638,7 +2747,7 @@ void GDScriptParser::_transform_match_statment(MatchNode *p_match_statement) { _mark_line_as_safe(pattern->line); Map<StringName, Node *> bindings; - Node *resulting_node = NULL; + Node *resulting_node = nullptr; _generate_pattern(pattern, id, resulting_node, bindings); if (!resulting_node) { @@ -2683,9 +2792,11 @@ void GDScriptParser::_transform_match_statment(MatchNode *p_match_statement) { LocalVarNode *local_var = branch->body->variables[e->key()]; local_var->assign = e->value(); local_var->set_datatype(local_var->assign->get_datatype()); + local_var->assignments++; IdentifierNode *id2 = alloc_node<IdentifierNode>(); id2->name = local_var->name; + id2->datatype = local_var->datatype; id2->declared_block = branch->body; id2->set_datatype(local_var->assign->get_datatype()); @@ -2706,11 +2817,12 @@ void GDScriptParser::_transform_match_statment(MatchNode *p_match_statement) { } void GDScriptParser::_parse_block(BlockNode *p_block, bool p_static) { - IndentLevel current_level = indent_level.back()->get(); #ifdef DEBUG_ENABLED + pending_newline = -1; // reset for the new block + NewLineNode *nl = alloc_node<NewLineNode>(); nl->line = tokenizer->get_token_line(); @@ -2733,8 +2845,9 @@ void GDScriptParser::_parse_block(BlockNode *p_block, bool p_static) { is_first_line = false; GDScriptTokenizer::Token token = tokenizer->get_token(); - if (error_set) + if (error_set) { return; + } if (current_level.indent > indent_level.back()->get().indent) { p_block->end_line = tokenizer->get_token_line(); @@ -2742,7 +2855,6 @@ void GDScriptParser::_parse_block(BlockNode *p_block, bool p_static) { } if (pending_newline != -1) { - NewLineNode *nl2 = alloc_node<NewLineNode>(); nl2->line = pending_newline; p_block->statements.push_back(nl2); @@ -2774,7 +2886,6 @@ void GDScriptParser::_parse_block(BlockNode *p_block, bool p_static) { return; } break; case GDScriptTokenizer::TK_NEWLINE: { - int line = tokenizer->get_token_line(); if (!_parse_newline()) { @@ -2785,6 +2896,7 @@ void GDScriptParser::_parse_block(BlockNode *p_block, bool p_static) { return; } + _mark_line_as_safe(line); NewLineNode *nl2 = alloc_node<NewLineNode>(); nl2->line = line; p_block->statements.push_back(nl2); @@ -2792,7 +2904,6 @@ void GDScriptParser::_parse_block(BlockNode *p_block, bool p_static) { } break; case GDScriptTokenizer::TK_CF_PASS: { if (tokenizer->get_token(1) != GDScriptTokenizer::TK_SEMICOLON && tokenizer->get_token(1) != GDScriptTokenizer::TK_NEWLINE && tokenizer->get_token(1) != GDScriptTokenizer::TK_EOF) { - _set_error("Expected \";\" or a line break."); return; } @@ -2809,7 +2920,6 @@ void GDScriptParser::_parse_block(BlockNode *p_block, bool p_static) { tokenizer->advance(); int var_line = tokenizer->get_token_line(); if (!tokenizer->is_token_literal(0, true)) { - _set_error("Expected an identifier for the local variable name."); return; } @@ -2838,7 +2948,7 @@ void GDScriptParser::_parse_block(BlockNode *p_block, bool p_static) { lv->line = var_line; p_block->statements.push_back(lv); - Node *assigned = NULL; + Node *assigned = nullptr; if (tokenizer->get_token() == GDScriptTokenizer::TK_COLON) { if (tokenizer->get_token(1) == GDScriptTokenizer::TK_OP_ASSIGN) { @@ -2854,7 +2964,6 @@ void GDScriptParser::_parse_block(BlockNode *p_block, bool p_static) { } if (tokenizer->get_token() == GDScriptTokenizer::TK_OP_ASSIGN) { - tokenizer->advance(); Node *subexpr = _parse_and_reduce_expression(p_block, p_static); if (!subexpr) { @@ -2867,7 +2976,6 @@ void GDScriptParser::_parse_block(BlockNode *p_block, bool p_static) { lv->assignments++; assigned = subexpr; } else { - assigned = _get_default_value_for_type(lv->datatype, var_line); } //must be added later, to avoid self-referencing. @@ -2888,13 +2996,12 @@ void GDScriptParser::_parse_block(BlockNode *p_block, bool p_static) { lv->assign = assigned; if (!_end_statement()) { - _set_error("Expected end of statement (\"var\")."); + _set_end_statement_error("var"); return; } } break; case GDScriptTokenizer::TK_CF_IF: { - tokenizer->advance(); Node *condition = _parse_and_reduce_expression(p_block, p_static); @@ -2926,17 +3033,18 @@ void GDScriptParser::_parse_block(BlockNode *p_block, bool p_static) { _parse_block(cf_if->body, p_static); current_block = p_block; - if (error_set) + if (error_set) { return; + } p_block->statements.push_back(cf_if); bool all_have_return = cf_if->body->has_return; bool have_else = false; while (true) { - - while (tokenizer->get_token() == GDScriptTokenizer::TK_NEWLINE && _parse_newline()) + while (tokenizer->get_token() == GDScriptTokenizer::TK_NEWLINE && _parse_newline()) { ; + } if (indent_level.back()->get().indent < current_level.indent) { //not at current indent level p_block->end_line = tokenizer->get_token_line(); @@ -2944,9 +3052,7 @@ void GDScriptParser::_parse_block(BlockNode *p_block, bool p_static) { } if (tokenizer->get_token() == GDScriptTokenizer::TK_CF_ELIF) { - if (indent_level.back()->get().indent > current_level.indent) { - _set_error("Invalid indentation."); return; } @@ -2986,13 +3092,13 @@ void GDScriptParser::_parse_block(BlockNode *p_block, bool p_static) { current_block = cf_else->body; _parse_block(cf_else->body, p_static); current_block = p_block; - if (error_set) + if (error_set) { return; + } all_have_return = all_have_return && cf_else->body->has_return; } else if (tokenizer->get_token() == GDScriptTokenizer::TK_CF_ELSE) { - if (indent_level.back()->get().indent > current_level.indent) { _set_error("Invalid indentation."); return; @@ -3011,16 +3117,18 @@ void GDScriptParser::_parse_block(BlockNode *p_block, bool p_static) { current_block = cf_if->body_else; _parse_block(cf_if->body_else, p_static); current_block = p_block; - if (error_set) + if (error_set) { return; + } all_have_return = all_have_return && cf_if->body_else->has_return; have_else = true; break; //after else, exit - } else + } else { break; + } } cf_if->body->has_return = all_have_return; @@ -3029,7 +3137,6 @@ void GDScriptParser::_parse_block(BlockNode *p_block, bool p_static) { } break; case GDScriptTokenizer::TK_CF_WHILE: { - tokenizer->advance(); Node *condition2 = _parse_and_reduce_expression(p_block, p_static); if (!condition2) { @@ -3046,6 +3153,8 @@ void GDScriptParser::_parse_block(BlockNode *p_block, bool p_static) { cf_while->body = alloc_node<BlockNode>(); cf_while->body->parent_block = p_block; + cf_while->body->can_break = true; + cf_while->body->can_continue = true; p_block->sub_blocks.push_back(cf_while->body); if (!_enter_indent_block(cf_while->body)) { @@ -3057,22 +3166,36 @@ void GDScriptParser::_parse_block(BlockNode *p_block, bool p_static) { current_block = cf_while->body; _parse_block(cf_while->body, p_static); current_block = p_block; - if (error_set) + if (error_set) { return; - p_block->has_return = cf_while->body->has_return; + } p_block->statements.push_back(cf_while); } break; case GDScriptTokenizer::TK_CF_FOR: { - tokenizer->advance(); if (!tokenizer->is_token_literal(0, true)) { - _set_error("Identifier expected after \"for\"."); } IdentifierNode *id = alloc_node<IdentifierNode>(); id->name = tokenizer->get_token_identifier(); +#ifdef DEBUG_ENABLED + for (int j = 0; j < current_class->variables.size(); j++) { + if (current_class->variables[j].identifier == id->name) { + _add_warning(GDScriptWarning::SHADOWED_VARIABLE, id->line, id->name, itos(current_class->variables[j].line)); + } + } +#endif // DEBUG_ENABLED + + BlockNode *check_block = p_block; + while (check_block) { + if (check_block->variables.has(id->name)) { + _set_error("Variable \"" + String(id->name) + "\" already defined in the scope (at line " + itos(check_block->variables[id->name]->line) + ")."); + return; + } + check_block = check_block->parent_block; + } tokenizer->advance(); @@ -3094,7 +3217,6 @@ void GDScriptParser::_parse_block(BlockNode *p_block, bool p_static) { DataType iter_type; if (container->type == Node::TYPE_OPERATOR) { - OperatorNode *op = static_cast<OperatorNode *>(container); if (op->op == OperatorNode::OP_CALL && op->arguments[0]->type == Node::TYPE_BUILT_IN_FUNCTION && static_cast<BuiltInFunctionNode *>(op->arguments[0])->function == GDScriptFunctions::GEN_RANGE) { //iterating a range, so see if range() can be optimized without allocating memory, by replacing it by vectors (which can work as iterable too!) @@ -3102,15 +3224,16 @@ void GDScriptParser::_parse_block(BlockNode *p_block, bool p_static) { Vector<Node *> args; Vector<double> constants; - bool constant = false; + bool constant = true; for (int i = 1; i < op->arguments.size(); i++) { args.push_back(op->arguments[i]); - if (constant && op->arguments[i]->type == Node::TYPE_CONSTANT) { + if (op->arguments[i]->type == Node::TYPE_CONSTANT) { ConstantNode *c = static_cast<ConstantNode *>(op->arguments[i]); if (c->value.get_type() == Variant::FLOAT || c->value.get_type() == Variant::INT) { constants.push_back(c->value); - constant = true; + } else { + constant = false; } } else { constant = false; @@ -3118,14 +3241,18 @@ void GDScriptParser::_parse_block(BlockNode *p_block, bool p_static) { } if (args.size() > 0 && args.size() < 4) { - if (constant) { - ConstantNode *cn = alloc_node<ConstantNode>(); switch (args.size()) { - case 1: cn->value = (int)constants[0]; break; - case 2: cn->value = Vector2(constants[0], constants[1]); break; - case 3: cn->value = Vector3(constants[0], constants[1], constants[2]); break; + case 1: + cn->value = (int64_t)constants[0]; + break; + case 2: + cn->value = Vector2i(constants[0], constants[1]); + break; + case 3: + cn->value = Vector3i(constants[0], constants[1], constants[2]); + break; } cn->datatype = _type_from_variant(cn->value); container = cn; @@ -3137,9 +3264,15 @@ void GDScriptParser::_parse_block(BlockNode *p_block, bool p_static) { on->arguments.push_back(tn); switch (args.size()) { - case 1: tn->vtype = Variant::INT; break; - case 2: tn->vtype = Variant::VECTOR2; break; - case 3: tn->vtype = Variant::VECTOR3; break; + case 1: + tn->vtype = Variant::INT; + break; + case 2: + tn->vtype = Variant::VECTOR2I; + break; + case 3: + tn->vtype = Variant::VECTOR3I; + break; } for (int i = 0; i < args.size(); i++) { @@ -3164,6 +3297,8 @@ void GDScriptParser::_parse_block(BlockNode *p_block, bool p_static) { cf_for->body = alloc_node<BlockNode>(); cf_for->body->parent_block = p_block; + cf_for->body->can_break = true; + cf_for->body->can_continue = true; p_block->sub_blocks.push_back(cf_for->body); if (!_enter_indent_block(cf_for->body)) { @@ -3187,12 +3322,26 @@ void GDScriptParser::_parse_block(BlockNode *p_block, bool p_static) { _parse_block(cf_for->body, p_static); current_block = p_block; - if (error_set) + if (error_set) { return; - p_block->has_return = cf_for->body->has_return; + } p_block->statements.push_back(cf_for); } break; case GDScriptTokenizer::TK_CF_CONTINUE: { + BlockNode *upper_block = p_block; + bool is_continue_valid = false; + while (upper_block) { + if (upper_block->can_continue) { + is_continue_valid = true; + break; + } + upper_block = upper_block->parent_block; + } + + if (!is_continue_valid) { + _set_error("Unexpected keyword \"continue\" outside a loop."); + return; + } _mark_line_as_safe(tokenizer->get_token_line()); tokenizer->advance(); @@ -3200,11 +3349,25 @@ void GDScriptParser::_parse_block(BlockNode *p_block, bool p_static) { cf_continue->cf_type = ControlFlowNode::CF_CONTINUE; p_block->statements.push_back(cf_continue); if (!_end_statement()) { - _set_error("Expected end of statement (\"continue\")."); + _set_end_statement_error("continue"); return; } } break; case GDScriptTokenizer::TK_CF_BREAK: { + BlockNode *upper_block = p_block; + bool is_break_valid = false; + while (upper_block) { + if (upper_block->can_break) { + is_break_valid = true; + break; + } + upper_block = upper_block->parent_block; + } + + if (!is_break_valid) { + _set_error("Unexpected keyword \"break\" outside a loop."); + return; + } _mark_line_as_safe(tokenizer->get_token_line()); tokenizer->advance(); @@ -3212,12 +3375,11 @@ void GDScriptParser::_parse_block(BlockNode *p_block, bool p_static) { cf_break->cf_type = ControlFlowNode::CF_BREAK; p_block->statements.push_back(cf_break); if (!_end_statement()) { - _set_error("Expected end of statement (\"break\")."); + _set_end_statement_error("break"); return; } } break; case GDScriptTokenizer::TK_CF_RETURN: { - tokenizer->advance(); ControlFlowNode *cf_return = alloc_node<ControlFlowNode>(); cf_return->cf_type = ControlFlowNode::CF_RETURN; @@ -3241,7 +3403,7 @@ void GDScriptParser::_parse_block(BlockNode *p_block, bool p_static) { cf_return->arguments.push_back(retexpr); p_block->statements.push_back(cf_return); if (!_end_statement()) { - _set_error("Expected end of statement after return expression."); + _set_end_statement_error("return"); return; } } @@ -3249,7 +3411,6 @@ void GDScriptParser::_parse_block(BlockNode *p_block, bool p_static) { } break; case GDScriptTokenizer::TK_CF_MATCH: { - tokenizer->advance(); MatchNode *match_node = alloc_node<MatchNode>(); @@ -3273,12 +3434,15 @@ void GDScriptParser::_parse_block(BlockNode *p_block, bool p_static) { BlockNode *compiled_branches = alloc_node<BlockNode>(); compiled_branches->parent_block = p_block; compiled_branches->parent_class = p_block->parent_class; + compiled_branches->can_continue = true; p_block->sub_blocks.push_back(compiled_branches); _parse_pattern_block(compiled_branches, match_node->branches, p_static); - if (error_set) return; + if (error_set) { + return; + } ControlFlowNode *match_cf_node = alloc_node<ControlFlowNode>(); match_cf_node->cf_type = ControlFlowNode::CF_MATCH; @@ -3291,7 +3455,6 @@ void GDScriptParser::_parse_block(BlockNode *p_block, bool p_static) { _end_statement(); } break; case GDScriptTokenizer::TK_PR_ASSERT: { - tokenizer->advance(); if (tokenizer->get_token() != GDScriptTokenizer::TK_PARENTHESIS_OPEN) { @@ -3299,6 +3462,8 @@ void GDScriptParser::_parse_block(BlockNode *p_block, bool p_static) { return; } + int assert_line = tokenizer->get_token_line(); + tokenizer->advance(); Vector<Node *> args; @@ -3308,41 +3473,41 @@ void GDScriptParser::_parse_block(BlockNode *p_block, bool p_static) { } if (args.empty() || args.size() > 2) { - _set_error("Wrong number of arguments, expected 1 or 2"); + _set_error("Wrong number of arguments, expected 1 or 2", assert_line); return; } AssertNode *an = alloc_node<AssertNode>(); an->condition = _reduce_expression(args[0], p_static); + an->line = assert_line; if (args.size() == 2) { an->message = _reduce_expression(args[1], p_static); } else { ConstantNode *message_node = alloc_node<ConstantNode>(); message_node->value = String(); + message_node->datatype = _type_from_variant(message_node->value); an->message = message_node; } p_block->statements.push_back(an); if (!_end_statement()) { - _set_error("Expected end of statement after \"assert\"."); + _set_end_statement_error("assert"); return; } } break; case GDScriptTokenizer::TK_PR_BREAKPOINT: { - tokenizer->advance(); BreakpointNode *bn = alloc_node<BreakpointNode>(); p_block->statements.push_back(bn); if (!_end_statement()) { - _set_error("Expected end of statement after \"breakpoint\"."); + _set_end_statement_error("breakpoint"); return; } } break; default: { - Node *expression = _parse_and_reduce_expression(p_block, p_static, false, true); if (!expression) { if (_recover_from_completion()) { @@ -3356,7 +3521,7 @@ void GDScriptParser::_parse_block(BlockNode *p_block, bool p_static) { if (tokenizer->get_token() == GDScriptTokenizer::TK_COLON && tokenizer->get_token(1) == GDScriptTokenizer::TK_OP_ASSIGN) { _set_error("Unexpected ':=', use '=' instead. Expected end of statement after expression."); } else { - _set_error(String() + "Expected end of statement after expression, got " + tokenizer->get_token_name(tokenizer->get_token()) + " instead"); + _set_error(vformat("Expected end of statement after expression, got %s instead.", tokenizer->get_token_name(tokenizer->get_token()))); } return; } @@ -3367,9 +3532,7 @@ void GDScriptParser::_parse_block(BlockNode *p_block, bool p_static) { } bool GDScriptParser::_parse_newline() { - if (tokenizer->get_token(1) != GDScriptTokenizer::TK_EOF && tokenizer->get_token(1) != GDScriptTokenizer::TK_NEWLINE) { - IndentLevel current_level = indent_level.back()->get(); int indent = tokenizer->get_token_line_indent(); int tabs = tokenizer->get_token_line_tab_indent(); @@ -3386,9 +3549,7 @@ bool GDScriptParser::_parse_newline() { } if (indent < current_level.indent) { - while (indent < current_level.indent) { - //exit block if (indent_level.size() == 1) { _set_error("Invalid indentation. Bug?"); @@ -3398,7 +3559,6 @@ bool GDScriptParser::_parse_newline() { indent_level.pop_back(); if (indent_level.back()->get().indent < indent) { - _set_error("Unindent does not match any outer indentation level."); return false; } @@ -3421,15 +3581,12 @@ bool GDScriptParser::_parse_newline() { } void GDScriptParser::_parse_extends(ClassNode *p_class) { - if (p_class->extends_used) { - _set_error("\"extends\" can only be present once per script."); return; } if (!p_class->constant_expressions.empty() || !p_class->subclasses.empty() || !p_class->functions.empty() || !p_class->variables.empty()) { - _set_error("\"extends\" must be used before anything else."); return; } @@ -3446,10 +3603,8 @@ void GDScriptParser::_parse_extends(ClassNode *p_class) { // see if inheritance happens from a file if (tokenizer->get_token() == GDScriptTokenizer::TK_CONSTANT) { - Variant constant = tokenizer->get_token_constant(); if (constant.get_type() != Variant::STRING) { - _set_error("\"extends\" constant must be a string."); return; } @@ -3466,16 +3621,14 @@ void GDScriptParser::_parse_extends(ClassNode *p_class) { if (tokenizer->get_token() != GDScriptTokenizer::TK_PERIOD) { return; - } else + } else { tokenizer->advance(); + } } while (true) { - switch (tokenizer->get_token()) { - case GDScriptTokenizer::TK_IDENTIFIER: { - StringName identifier = tokenizer->get_token_identifier(); p_class->extends_class.push_back(identifier); } break; @@ -3484,7 +3637,6 @@ void GDScriptParser::_parse_extends(ClassNode *p_class) { break; default: { - _set_error("Invalid \"extends\" syntax, expected string constant (path) and/or identifier (parent class)."); return; } @@ -3493,7 +3645,6 @@ void GDScriptParser::_parse_extends(ClassNode *p_class) { tokenizer->advance(1); switch (tokenizer->get_token()) { - case GDScriptTokenizer::TK_IDENTIFIER: case GDScriptTokenizer::TK_PERIOD: continue; @@ -3505,14 +3656,13 @@ void GDScriptParser::_parse_extends(ClassNode *p_class) { } void GDScriptParser::_parse_class(ClassNode *p_class) { - IndentLevel current_level = indent_level.back()->get(); while (true) { - GDScriptTokenizer::Token token = tokenizer->get_token(); - if (error_set) + if (error_set) { return; + } if (current_level.indent > indent_level.back()->get().indent) { p_class->end_line = tokenizer->get_token_line(); @@ -3520,7 +3670,6 @@ void GDScriptParser::_parse_class(ClassNode *p_class) { } switch (token) { - case GDScriptTokenizer::TK_CURSOR: { tokenizer->advance(); } break; @@ -3540,19 +3689,18 @@ void GDScriptParser::_parse_class(ClassNode *p_class) { } } break; case GDScriptTokenizer::TK_PR_EXTENDS: { - _mark_line_as_safe(tokenizer->get_token_line()); _parse_extends(p_class); - if (error_set) + if (error_set) { return; + } if (!_end_statement()) { - _set_error("Expected end of statement after \"extends\"."); + _set_end_statement_error("extends"); return; } } break; case GDScriptTokenizer::TK_PR_CLASS_NAME: { - _mark_line_as_safe(tokenizer->get_token_line()); if (p_class->owner) { _set_error("\"class_name\" is only valid for the main class namespace."); @@ -3563,7 +3711,6 @@ void GDScriptParser::_parse_class(ClassNode *p_class) { return; } if (tokenizer->get_token(1) != GDScriptTokenizer::TK_IDENTIFIER) { - _set_error("\"class_name\" syntax: \"class_name <UniqueName>\""); return; } @@ -3629,9 +3776,7 @@ void GDScriptParser::_parse_class(ClassNode *p_class) { } break; case GDScriptTokenizer::TK_PR_TOOL: { - if (p_class->tool) { - _set_error("The \"tool\" keyword can only be present once per script."); return; } @@ -3646,7 +3791,6 @@ void GDScriptParser::_parse_class(ClassNode *p_class) { StringName name; if (tokenizer->get_token(1) != GDScriptTokenizer::TK_IDENTIFIER) { - _set_error("\"class\" syntax: \"class <Name>:\" or \"class <Name> extends <BaseClass>:\""); return; } @@ -3674,6 +3818,12 @@ void GDScriptParser::_parse_class(ClassNode *p_class) { _set_error("A constant named \"" + String(name) + "\" already exists in the outer class scope (at line" + itos(outer_class->constant_expressions[name].expression->line) + ")."); return; } + for (int i = 0; i < outer_class->variables.size(); i++) { + if (outer_class->variables[i].identifier == name) { + _set_error("A variable named \"" + String(name) + "\" already exists in the outer class scope (at line " + itos(outer_class->variables[i].line) + ")."); + return; + } + } outer_class = outer_class->owner; } @@ -3689,14 +3839,13 @@ void GDScriptParser::_parse_class(ClassNode *p_class) { p_class->subclasses.push_back(newclass); if (tokenizer->get_token() == GDScriptTokenizer::TK_PR_EXTENDS) { - _parse_extends(newclass); - if (error_set) + if (error_set) { return; + } } if (!_enter_indent_block()) { - _set_error("Indented block expected."); return; } @@ -3714,7 +3863,6 @@ void GDScriptParser::_parse_class(ClassNode *p_class) { case GDScriptTokenizer::TK_PR_STATIC: { tokenizer->advance(); if (tokenizer->get_token() != GDScriptTokenizer::TK_PR_FUNCTION) { - _set_error("Expected \"func\"."); return; } @@ -3722,12 +3870,10 @@ void GDScriptParser::_parse_class(ClassNode *p_class) { [[fallthrough]]; } case GDScriptTokenizer::TK_PR_FUNCTION: { - bool _static = false; pending_newline = -1; if (tokenizer->get_token(-1) == GDScriptTokenizer::TK_PR_STATIC) { - _static = true; } @@ -3738,7 +3884,6 @@ void GDScriptParser::_parse_class(ClassNode *p_class) { } if (name == StringName()) { - _set_error("Expected an identifier after \"func\" (syntax: \"func <identifier>([arguments]):\")."); return; } @@ -3771,7 +3916,6 @@ void GDScriptParser::_parse_class(ClassNode *p_class) { #endif // DEBUG_ENABLED if (tokenizer->get_token() != GDScriptTokenizer::TK_PARENTHESIS_OPEN) { - _set_error("Expected \"(\" after the identifier (syntax: \"func <identifier>([arguments]):\" )."); return; } @@ -3791,24 +3935,27 @@ void GDScriptParser::_parse_class(ClassNode *p_class) { //has arguments bool defaulting = false; while (true) { - if (tokenizer->get_token() == GDScriptTokenizer::TK_NEWLINE) { tokenizer->advance(); continue; } if (tokenizer->get_token() == GDScriptTokenizer::TK_PR_VAR) { - tokenizer->advance(); //var before the identifier is allowed } if (!tokenizer->is_token_literal(0, true)) { - _set_error("Expected an identifier for an argument."); return; } StringName argname = tokenizer->get_token_identifier(); + for (int i = 0; i < arguments.size(); i++) { + if (arguments[i] == argname) { + _set_error("The argument name \"" + String(argname) + "\" is defined multiple times."); + return; + } + } arguments.push_back(argname); #ifdef DEBUG_ENABLED arguments_usage.push_back(0); @@ -3829,7 +3976,6 @@ void GDScriptParser::_parse_class(ClassNode *p_class) { argument_types.push_back(argtype); if (defaulting && tokenizer->get_token() != GDScriptTokenizer::TK_OP_ASSIGN) { - _set_error("Default parameter expected."); return; } @@ -3840,8 +3986,9 @@ void GDScriptParser::_parse_class(ClassNode *p_class) { defaulting = true; tokenizer->advance(1); Node *defval = _parse_and_reduce_expression(p_class, _static); - if (!defval || error_set) + if (!defval || error_set) { return; + } OperatorNode *on = alloc_node<OperatorNode>(); on->op = OperatorNode::OP_ASSIGN; @@ -3870,7 +4017,6 @@ void GDScriptParser::_parse_class(ClassNode *p_class) { tokenizer->advance(); continue; } else if (tokenizer->get_token() != GDScriptTokenizer::TK_PARENTHESIS_CLOSE) { - _set_error("Expected \",\" or \")\"."); return; } @@ -3898,14 +4044,12 @@ void GDScriptParser::_parse_class(ClassNode *p_class) { rpc_mode = MultiplayerAPI::RPC_MODE_DISABLED; if (name == "_init") { - if (_static) { _set_error("The constructor cannot be static."); return; } if (p_class->extends_used) { - OperatorNode *cparent = alloc_node<OperatorNode>(); cparent->op = OperatorNode::OP_PARENT_CALL; block->statements.push_back(cparent); @@ -3926,17 +4070,15 @@ void GDScriptParser::_parse_class(ClassNode *p_class) { //has arguments parenthesis++; while (true) { - current_function = function; Node *arg = _parse_and_reduce_expression(p_class, _static); - current_function = NULL; + current_function = nullptr; cparent->arguments.push_back(arg); if (tokenizer->get_token() == GDScriptTokenizer::TK_COMMA) { tokenizer->advance(); continue; } else if (tokenizer->get_token() != GDScriptTokenizer::TK_PARENTHESIS_CLOSE) { - _set_error("Expected \",\" or \")\"."); return; } @@ -3949,9 +4091,7 @@ void GDScriptParser::_parse_class(ClassNode *p_class) { tokenizer->advance(); } } else { - if (tokenizer->get_token() == GDScriptTokenizer::TK_PERIOD) { - _set_error("Parent constructor call found for a class without inheritance."); return; } @@ -3960,7 +4100,6 @@ void GDScriptParser::_parse_class(ClassNode *p_class) { DataType return_type; if (tokenizer->get_token() == GDScriptTokenizer::TK_FORWARD_ARROW) { - if (!_parse_type(return_type, true)) { _set_error("Expected a return type for the function."); return; @@ -3968,23 +4107,23 @@ void GDScriptParser::_parse_class(ClassNode *p_class) { } if (!_enter_indent_block(block)) { - - _set_error("Indented block expected."); + _set_error(vformat("Indented block expected after declaration of \"%s\" function.", function->name)); return; } function->return_type = return_type; - if (_static) + if (_static) { p_class->static_functions.push_back(function); - else + } else { p_class->functions.push_back(function); + } current_function = function; function->body = block; current_block = block; _parse_block(block, _static); - current_block = NULL; + current_block = nullptr; //arguments } break; @@ -4000,6 +4139,14 @@ void GDScriptParser::_parse_class(ClassNode *p_class) { sig.name = tokenizer->get_token_identifier(); sig.emissions = 0; sig.line = tokenizer->get_token_line(); + + for (int i = 0; i < current_class->_signals.size(); i++) { + if (current_class->_signals[i].name == sig.name) { + _set_error("The signal \"" + sig.name + "\" already exists in this class (at line: " + itos(current_class->_signals[i].line) + ")."); + return; + } + } + tokenizer->advance(); if (tokenizer->get_token() == GDScriptTokenizer::TK_PARENTHESIS_OPEN) { @@ -4039,16 +4186,14 @@ void GDScriptParser::_parse_class(ClassNode *p_class) { p_class->_signals.push_back(sig); if (!_end_statement()) { - _set_error("Expected end of statement (\"signal\")."); + _set_end_statement_error("signal"); return; } } break; case GDScriptTokenizer::TK_PR_EXPORT: { - tokenizer->advance(); if (tokenizer->get_token() == GDScriptTokenizer::TK_PARENTHESIS_OPEN) { - #define _ADVANCE_AND_CONSUME_NEWLINES \ do { \ tokenizer->advance(); \ @@ -4073,7 +4218,6 @@ void GDScriptParser::_parse_class(ClassNode *p_class) { } if (tokenizer->get_token() == GDScriptTokenizer::TK_BUILT_IN_TYPE) { - Variant::Type type = tokenizer->get_token_type(); if (type == Variant::NIL) { _set_error("Can't export null type."); @@ -4092,11 +4236,8 @@ void GDScriptParser::_parse_class(ClassNode *p_class) { _ADVANCE_AND_CONSUME_NEWLINES; switch (type) { - case Variant::INT: { - if (tokenizer->get_token() == GDScriptTokenizer::TK_IDENTIFIER && tokenizer->get_token_identifier() == "FLAGS") { - _ADVANCE_AND_CONSUME_NEWLINES; if (tokenizer->get_token() != GDScriptTokenizer::TK_COMMA) { @@ -4109,7 +4250,6 @@ void GDScriptParser::_parse_class(ClassNode *p_class) { bool first = true; while (true) { - if (tokenizer->get_token() != GDScriptTokenizer::TK_CONSTANT || tokenizer->get_token_constant().get_type() != Variant::STRING) { current_export = PropertyInfo(); _set_error("Expected a string constant in the named bit flags hint."); @@ -4117,16 +4257,18 @@ void GDScriptParser::_parse_class(ClassNode *p_class) { } String c = tokenizer->get_token_constant(); - if (!first) + if (!first) { current_export.hint_string += ","; - else + } else { first = false; + } current_export.hint_string += c.xml_escape(); _ADVANCE_AND_CONSUME_NEWLINES; - if (tokenizer->get_token() == GDScriptTokenizer::TK_PARENTHESIS_CLOSE) + if (tokenizer->get_token() == GDScriptTokenizer::TK_PARENTHESIS_CLOSE) { break; + } if (tokenizer->get_token() != GDScriptTokenizer::TK_COMMA) { current_export = PropertyInfo(); @@ -4140,7 +4282,6 @@ void GDScriptParser::_parse_class(ClassNode *p_class) { } if (tokenizer->get_token() == GDScriptTokenizer::TK_IDENTIFIER && tokenizer->get_token_identifier() == "LAYERS_2D_RENDER") { - _ADVANCE_AND_CONSUME_NEWLINES; if (tokenizer->get_token() != GDScriptTokenizer::TK_PARENTHESIS_CLOSE) { _set_error("Expected \")\" in the layers 2D render hint."); @@ -4151,7 +4292,6 @@ void GDScriptParser::_parse_class(ClassNode *p_class) { } if (tokenizer->get_token() == GDScriptTokenizer::TK_IDENTIFIER && tokenizer->get_token_identifier() == "LAYERS_2D_PHYSICS") { - _ADVANCE_AND_CONSUME_NEWLINES; if (tokenizer->get_token() != GDScriptTokenizer::TK_PARENTHESIS_CLOSE) { _set_error("Expected \")\" in the layers 2D physics hint."); @@ -4162,7 +4302,6 @@ void GDScriptParser::_parse_class(ClassNode *p_class) { } if (tokenizer->get_token() == GDScriptTokenizer::TK_IDENTIFIER && tokenizer->get_token_identifier() == "LAYERS_3D_RENDER") { - _ADVANCE_AND_CONSUME_NEWLINES; if (tokenizer->get_token() != GDScriptTokenizer::TK_PARENTHESIS_CLOSE) { _set_error("Expected \")\" in the layers 3D render hint."); @@ -4173,7 +4312,6 @@ void GDScriptParser::_parse_class(ClassNode *p_class) { } if (tokenizer->get_token() == GDScriptTokenizer::TK_IDENTIFIER && tokenizer->get_token_identifier() == "LAYERS_3D_PHYSICS") { - _ADVANCE_AND_CONSUME_NEWLINES; if (tokenizer->get_token() != GDScriptTokenizer::TK_PARENTHESIS_CLOSE) { _set_error("Expected \")\" in the layers 3D physics hint."); @@ -4188,25 +4326,25 @@ void GDScriptParser::_parse_class(ClassNode *p_class) { current_export.hint = PROPERTY_HINT_ENUM; bool first = true; while (true) { - if (tokenizer->get_token() != GDScriptTokenizer::TK_CONSTANT || tokenizer->get_token_constant().get_type() != Variant::STRING) { - current_export = PropertyInfo(); _set_error("Expected a string constant in the enumeration hint."); return; } String c = tokenizer->get_token_constant(); - if (!first) + if (!first) { current_export.hint_string += ","; - else + } else { first = false; + } current_export.hint_string += c.xml_escape(); _ADVANCE_AND_CONSUME_NEWLINES; - if (tokenizer->get_token() == GDScriptTokenizer::TK_PARENTHESIS_CLOSE) + if (tokenizer->get_token() == GDScriptTokenizer::TK_PARENTHESIS_CLOSE) { break; + } if (tokenizer->get_token() != GDScriptTokenizer::TK_COMMA) { current_export = PropertyInfo(); @@ -4223,7 +4361,6 @@ void GDScriptParser::_parse_class(ClassNode *p_class) { [[fallthrough]]; } case Variant::FLOAT: { - if (tokenizer->get_token() == GDScriptTokenizer::TK_IDENTIFIER && tokenizer->get_token_identifier() == "EASE") { current_export.hint = PROPERTY_HINT_EXP_EASING; _ADVANCE_AND_CONSUME_NEWLINES; @@ -4236,19 +4373,19 @@ void GDScriptParser::_parse_class(ClassNode *p_class) { // range if (tokenizer->get_token() == GDScriptTokenizer::TK_IDENTIFIER && tokenizer->get_token_identifier() == "EXP") { - current_export.hint = PROPERTY_HINT_EXP_RANGE; _ADVANCE_AND_CONSUME_NEWLINES; - if (tokenizer->get_token() == GDScriptTokenizer::TK_PARENTHESIS_CLOSE) + if (tokenizer->get_token() == GDScriptTokenizer::TK_PARENTHESIS_CLOSE) { break; - else if (tokenizer->get_token() != GDScriptTokenizer::TK_COMMA) { + } else if (tokenizer->get_token() != GDScriptTokenizer::TK_COMMA) { _set_error("Expected \")\" or \",\" in the exponential range hint."); return; } _ADVANCE_AND_CONSUME_NEWLINES; - } else + } else { current_export.hint = PROPERTY_HINT_RANGE; + } float sign = 1.0; @@ -4257,7 +4394,6 @@ void GDScriptParser::_parse_class(ClassNode *p_class) { _ADVANCE_AND_CONSUME_NEWLINES; } if (tokenizer->get_token() != GDScriptTokenizer::TK_CONSTANT || !tokenizer->get_token_constant().is_num()) { - current_export = PropertyInfo(); _set_error("Expected a range in the numeric hint."); return; @@ -4272,7 +4408,6 @@ void GDScriptParser::_parse_class(ClassNode *p_class) { } if (tokenizer->get_token() != GDScriptTokenizer::TK_COMMA) { - current_export = PropertyInfo(); _set_error("Expected \",\" or \")\" in the numeric range hint."); return; @@ -4287,7 +4422,6 @@ void GDScriptParser::_parse_class(ClassNode *p_class) { } if (tokenizer->get_token() != GDScriptTokenizer::TK_CONSTANT || !tokenizer->get_token_constant().is_num()) { - current_export = PropertyInfo(); _set_error("Expected a number as upper bound in the numeric range hint."); return; @@ -4296,11 +4430,11 @@ void GDScriptParser::_parse_class(ClassNode *p_class) { current_export.hint_string += "," + rtos(sign * double(tokenizer->get_token_constant())); _ADVANCE_AND_CONSUME_NEWLINES; - if (tokenizer->get_token() == GDScriptTokenizer::TK_PARENTHESIS_CLOSE) + if (tokenizer->get_token() == GDScriptTokenizer::TK_PARENTHESIS_CLOSE) { break; + } if (tokenizer->get_token() != GDScriptTokenizer::TK_COMMA) { - current_export = PropertyInfo(); _set_error("Expected \",\" or \")\" in the numeric range hint."); return; @@ -4314,7 +4448,6 @@ void GDScriptParser::_parse_class(ClassNode *p_class) { } if (tokenizer->get_token() != GDScriptTokenizer::TK_CONSTANT || !tokenizer->get_token_constant().is_num()) { - current_export = PropertyInfo(); _set_error("Expected a number as step in the numeric range hint."); return; @@ -4325,30 +4458,29 @@ void GDScriptParser::_parse_class(ClassNode *p_class) { } break; case Variant::STRING: { - if (tokenizer->get_token() == GDScriptTokenizer::TK_CONSTANT && tokenizer->get_token_constant().get_type() == Variant::STRING) { //enumeration current_export.hint = PROPERTY_HINT_ENUM; bool first = true; while (true) { - if (tokenizer->get_token() != GDScriptTokenizer::TK_CONSTANT || tokenizer->get_token_constant().get_type() != Variant::STRING) { - current_export = PropertyInfo(); _set_error("Expected a string constant in the enumeration hint."); return; } String c = tokenizer->get_token_constant(); - if (!first) + if (!first) { current_export.hint_string += ","; - else + } else { first = false; + } current_export.hint_string += c.xml_escape(); _ADVANCE_AND_CONSUME_NEWLINES; - if (tokenizer->get_token() == GDScriptTokenizer::TK_PARENTHESIS_CLOSE) + if (tokenizer->get_token() == GDScriptTokenizer::TK_PARENTHESIS_CLOSE) { break; + } if (tokenizer->get_token() != GDScriptTokenizer::TK_COMMA) { current_export = PropertyInfo(); @@ -4362,13 +4494,11 @@ void GDScriptParser::_parse_class(ClassNode *p_class) { } if (tokenizer->get_token() == GDScriptTokenizer::TK_IDENTIFIER && tokenizer->get_token_identifier() == "DIR") { - _ADVANCE_AND_CONSUME_NEWLINES; - if (tokenizer->get_token() == GDScriptTokenizer::TK_PARENTHESIS_CLOSE) + if (tokenizer->get_token() == GDScriptTokenizer::TK_PARENTHESIS_CLOSE) { current_export.hint = PROPERTY_HINT_DIR; - else if (tokenizer->get_token() == GDScriptTokenizer::TK_COMMA) { - + } else if (tokenizer->get_token() == GDScriptTokenizer::TK_COMMA) { _ADVANCE_AND_CONSUME_NEWLINES; if (tokenizer->get_token() != GDScriptTokenizer::TK_IDENTIFIER || !(tokenizer->get_token_identifier() == "GLOBAL")) { @@ -4394,16 +4524,13 @@ void GDScriptParser::_parse_class(ClassNode *p_class) { } if (tokenizer->get_token() == GDScriptTokenizer::TK_IDENTIFIER && tokenizer->get_token_identifier() == "FILE") { - current_export.hint = PROPERTY_HINT_FILE; _ADVANCE_AND_CONSUME_NEWLINES; if (tokenizer->get_token() == GDScriptTokenizer::TK_COMMA) { - _ADVANCE_AND_CONSUME_NEWLINES; if (tokenizer->get_token() == GDScriptTokenizer::TK_IDENTIFIER && tokenizer->get_token_identifier() == "GLOBAL") { - if (!p_class->tool) { _set_error("Global filesystem hints may only be used in tool scripts."); return; @@ -4411,22 +4538,22 @@ void GDScriptParser::_parse_class(ClassNode *p_class) { current_export.hint = PROPERTY_HINT_GLOBAL_FILE; _ADVANCE_AND_CONSUME_NEWLINES; - if (tokenizer->get_token() == GDScriptTokenizer::TK_PARENTHESIS_CLOSE) + if (tokenizer->get_token() == GDScriptTokenizer::TK_PARENTHESIS_CLOSE) { break; - else if (tokenizer->get_token() == GDScriptTokenizer::TK_COMMA) + } else if (tokenizer->get_token() == GDScriptTokenizer::TK_COMMA) { _ADVANCE_AND_CONSUME_NEWLINES; - else { + } else { _set_error("Expected \")\" or \",\" in the hint."); return; } } if (tokenizer->get_token() != GDScriptTokenizer::TK_CONSTANT || tokenizer->get_token_constant().get_type() != Variant::STRING) { - - if (current_export.hint == PROPERTY_HINT_GLOBAL_FILE) + if (current_export.hint == PROPERTY_HINT_GLOBAL_FILE) { _set_error("Expected string constant with filter."); - else + } else { _set_error("Expected \"GLOBAL\" or string constant with filter."); + } return; } current_export.hint_string = tokenizer->get_token_constant(); @@ -4441,7 +4568,6 @@ void GDScriptParser::_parse_class(ClassNode *p_class) { } if (tokenizer->get_token() == GDScriptTokenizer::TK_IDENTIFIER && tokenizer->get_token_identifier() == "MULTILINE") { - current_export.hint = PROPERTY_HINT_MULTILINE_TEXT; _ADVANCE_AND_CONSUME_NEWLINES; if (tokenizer->get_token() != GDScriptTokenizer::TK_PARENTHESIS_CLOSE) { @@ -4452,9 +4578,7 @@ void GDScriptParser::_parse_class(ClassNode *p_class) { } } break; case Variant::COLOR: { - if (tokenizer->get_token() != GDScriptTokenizer::TK_IDENTIFIER) { - current_export = PropertyInfo(); _set_error("Color type hint expects RGB or RGBA as hints."); return; @@ -4474,7 +4598,6 @@ void GDScriptParser::_parse_class(ClassNode *p_class) { } break; default: { - current_export = PropertyInfo(); _set_error("Type \"" + Variant::get_type_name(type) + "\" can't take hints."); return; @@ -4483,7 +4606,6 @@ void GDScriptParser::_parse_class(ClassNode *p_class) { } } else { - parenthesis++; Node *subexpr = _parse_and_reduce_expression(p_class, true, true); if (!subexpr) { @@ -4543,10 +4665,11 @@ void GDScriptParser::_parse_class(ClassNode *p_class) { bool first = true; for (List<Variant>::Element *E = keys.front(); E; E = E->next()) { if (enum_values[E->get()].get_type() == Variant::INT) { - if (!first) + if (!first) { current_export.hint_string += ","; - else + } else { first = false; + } current_export.hint_string += E->get().operator String().camelcase_to_underscore(true).capitalize().xml_escape(); if (!is_flags) { @@ -4563,7 +4686,6 @@ void GDScriptParser::_parse_class(ClassNode *p_class) { } if (tokenizer->get_token() != GDScriptTokenizer::TK_PARENTHESIS_CLOSE) { - current_export = PropertyInfo(); _set_error("Expected \")\" or \",\" after the export hint."); return; @@ -4585,7 +4707,6 @@ void GDScriptParser::_parse_class(ClassNode *p_class) { } if (tokenizer->get_token() != GDScriptTokenizer::TK_PR_VAR && tokenizer->get_token() != GDScriptTokenizer::TK_PR_ONREADY && tokenizer->get_token() != GDScriptTokenizer::TK_PR_REMOTE && tokenizer->get_token() != GDScriptTokenizer::TK_PR_MASTER && tokenizer->get_token() != GDScriptTokenizer::TK_PR_PUPPET && tokenizer->get_token() != GDScriptTokenizer::TK_PR_REMOTESYNC && tokenizer->get_token() != GDScriptTokenizer::TK_PR_MASTERSYNC && tokenizer->get_token() != GDScriptTokenizer::TK_PR_PUPPETSYNC) { - current_export = PropertyInfo(); _set_error("Expected \"var\", \"onready\", \"remote\", \"master\", \"puppet\", \"remotesync\", \"mastersync\", \"puppetsync\"."); return; @@ -4594,7 +4715,6 @@ void GDScriptParser::_parse_class(ClassNode *p_class) { continue; } break; case GDScriptTokenizer::TK_PR_ONREADY: { - //may be fallthrough from export, ignore if so tokenizer->advance(); if (tokenizer->get_token() != GDScriptTokenizer::TK_PR_VAR) { @@ -4605,7 +4725,6 @@ void GDScriptParser::_parse_class(ClassNode *p_class) { continue; } break; case GDScriptTokenizer::TK_PR_REMOTE: { - //may be fallthrough from export, ignore if so tokenizer->advance(); if (current_export.type) { @@ -4625,7 +4744,6 @@ void GDScriptParser::_parse_class(ClassNode *p_class) { continue; } break; case GDScriptTokenizer::TK_PR_MASTER: { - //may be fallthrough from export, ignore if so tokenizer->advance(); if (current_export.type) { @@ -4645,7 +4763,6 @@ void GDScriptParser::_parse_class(ClassNode *p_class) { continue; } break; case GDScriptTokenizer::TK_PR_PUPPET: { - //may be fallthrough from export, ignore if so tokenizer->advance(); if (current_export.type) { @@ -4665,14 +4782,14 @@ void GDScriptParser::_parse_class(ClassNode *p_class) { continue; } break; case GDScriptTokenizer::TK_PR_REMOTESYNC: { - //may be fallthrough from export, ignore if so tokenizer->advance(); if (tokenizer->get_token() != GDScriptTokenizer::TK_PR_VAR && tokenizer->get_token() != GDScriptTokenizer::TK_PR_FUNCTION) { - if (current_export.type) + if (current_export.type) { _set_error("Expected \"var\"."); - else + } else { _set_error("Expected \"var\" or \"func\"."); + } return; } @@ -4680,14 +4797,14 @@ void GDScriptParser::_parse_class(ClassNode *p_class) { continue; } break; case GDScriptTokenizer::TK_PR_MASTERSYNC: { - //may be fallthrough from export, ignore if so tokenizer->advance(); if (tokenizer->get_token() != GDScriptTokenizer::TK_PR_VAR && tokenizer->get_token() != GDScriptTokenizer::TK_PR_FUNCTION) { - if (current_export.type) + if (current_export.type) { _set_error("Expected \"var\"."); - else + } else { _set_error("Expected \"var\" or \"func\"."); + } return; } @@ -4695,14 +4812,14 @@ void GDScriptParser::_parse_class(ClassNode *p_class) { continue; } break; case GDScriptTokenizer::TK_PR_PUPPETSYNC: { - //may be fallthrough from export, ignore if so tokenizer->advance(); if (tokenizer->get_token() != GDScriptTokenizer::TK_PR_VAR && tokenizer->get_token() != GDScriptTokenizer::TK_PR_FUNCTION) { - if (current_export.type) + if (current_export.type) { _set_error("Expected \"var\"."); - else + } else { _set_error("Expected \"var\" or \"func\"."); + } return; } @@ -4724,13 +4841,12 @@ void GDScriptParser::_parse_class(ClassNode *p_class) { tokenizer->advance(); if (!tokenizer->is_token_literal(0, true)) { - _set_error("Expected an identifier for the member variable name."); return; } member.identifier = tokenizer->get_token_literal(); - member.expression = NULL; + member.expression = nullptr; member._export.name = member.identifier; member.line = tokenizer->get_token_line(); member.usages = 0; @@ -4810,11 +4926,10 @@ void GDScriptParser::_parse_class(ClassNode *p_class) { #ifdef TOOLS_ENABLED Callable::CallError ce; - member.default_value = Variant::construct(member._export.type, NULL, 0, ce); + member.default_value = Variant::construct(member._export.type, nullptr, 0, ce); #endif if (tokenizer->get_token() == GDScriptTokenizer::TK_OP_ASSIGN) { - #ifdef DEBUG_ENABLED int line = tokenizer->get_token_line(); #endif @@ -4830,12 +4945,10 @@ void GDScriptParser::_parse_class(ClassNode *p_class) { //discourage common error if (!onready && subexpr->type == Node::TYPE_OPERATOR) { - OperatorNode *op = static_cast<OperatorNode *>(subexpr); if (op->op == OperatorNode::OP_CALL && op->arguments[0]->type == Node::TYPE_SELF && op->arguments[1]->type == Node::TYPE_IDENTIFIER) { IdentifierNode *id = static_cast<IdentifierNode *>(op->arguments[1]); if (id->name == "get_node") { - _set_error("Use \"onready var " + String(member.identifier) + " = get_node(...)\" instead."); return; } @@ -4845,25 +4958,27 @@ void GDScriptParser::_parse_class(ClassNode *p_class) { member.expression = subexpr; if (autoexport && !member.data_type.has_type) { - if (subexpr->type != Node::TYPE_CONSTANT) { - _set_error("Type-less export needs a constant expression assigned to infer type."); return; } ConstantNode *cn = static_cast<ConstantNode *>(subexpr); if (cn->value.get_type() == Variant::NIL) { - _set_error("Can't accept a null constant expression for inferring export type."); return; } + + if (!_reduce_export_var_type(cn->value, member.line)) { + return; + } + member._export.type = cn->value.get_type(); member._export.usage |= PROPERTY_USAGE_SCRIPT_VARIABLE; if (cn->value.get_type() == Variant::OBJECT) { Object *obj = cn->value; Resource *res = Object::cast_to<Resource>(obj); - if (res == NULL) { + if (res == nullptr) { _set_error("The exported constant isn't a type or resource."); return; } @@ -4873,7 +4988,6 @@ void GDScriptParser::_parse_class(ClassNode *p_class) { } #ifdef TOOLS_ENABLED if (subexpr->type == Node::TYPE_CONSTANT && (member._export.type != Variant::NIL || member.data_type.has_type)) { - ConstantNode *cn = static_cast<ConstantNode *>(subexpr); if (cn->value.get_type() != Variant::NIL) { if (member._export.type != Variant::NIL && cn->value.get_type() != member._export.type) { @@ -4893,6 +5007,7 @@ void GDScriptParser::_parse_class(ClassNode *p_class) { IdentifierNode *id = alloc_node<IdentifierNode>(); id->name = member.identifier; + id->datatype = member.data_type; OperatorNode *op = alloc_node<OperatorNode>(); op->op = OperatorNode::OP_INIT_ASSIGN; @@ -4902,20 +5017,21 @@ void GDScriptParser::_parse_class(ClassNode *p_class) { #ifdef DEBUG_ENABLED NewLineNode *nl2 = alloc_node<NewLineNode>(); nl2->line = line; - if (onready) + if (onready) { p_class->ready->statements.push_back(nl2); - else + } else { p_class->initializer->statements.push_back(nl2); + } #endif - if (onready) + if (onready) { p_class->ready->statements.push_back(op); - else + } else { p_class->initializer->statements.push_back(op); + } member.initial_assignment = op; } else { - if (autoexport && !member.data_type.has_type) { _set_error("Type-less export needs a constant expression assigned to infer type."); return; @@ -4935,6 +5051,7 @@ void GDScriptParser::_parse_class(ClassNode *p_class) { IdentifierNode *id = alloc_node<IdentifierNode>(); id->name = member.identifier; + id->datatype = member.data_type; OperatorNode *op = alloc_node<OperatorNode>(); op->op = OperatorNode::OP_INIT_ASSIGN; @@ -4947,7 +5064,6 @@ void GDScriptParser::_parse_class(ClassNode *p_class) { } if (tokenizer->get_token() == GDScriptTokenizer::TK_PR_SETGET) { - tokenizer->advance(); if (tokenizer->get_token() != GDScriptTokenizer::TK_COMMA) { @@ -4977,7 +5093,7 @@ void GDScriptParser::_parse_class(ClassNode *p_class) { p_class->variables.push_back(member); if (!_end_statement()) { - _set_error("Expected end of statement (\"continue\")."); + _set_end_statement_error("var"); return; } } break; @@ -4988,7 +5104,6 @@ void GDScriptParser::_parse_class(ClassNode *p_class) { tokenizer->advance(); if (!tokenizer->is_token_literal(0, true)) { - _set_error("Expected an identifier for the constant."); return; } @@ -5057,7 +5172,7 @@ void GDScriptParser::_parse_class(ClassNode *p_class) { p_class->constant_expressions.insert(const_id, constant); if (!_end_statement()) { - _set_error("Expected end of statement (constant).", line); + _set_end_statement_error("const"); return; } @@ -5104,14 +5219,11 @@ void GDScriptParser::_parse_class(ClassNode *p_class) { while (true) { if (tokenizer->get_token() == GDScriptTokenizer::TK_NEWLINE) { - tokenizer->advance(); // Ignore newlines } else if (tokenizer->get_token() == GDScriptTokenizer::TK_CURLY_BRACKET_CLOSE) { - tokenizer->advance(); break; // End of enum } else if (!tokenizer->is_token_literal(0, true)) { - if (tokenizer->get_token() == GDScriptTokenizer::TK_EOF) { _set_error("Unexpected end of file."); } else { @@ -5211,7 +5323,7 @@ void GDScriptParser::_parse_class(ClassNode *p_class) { } if (!_end_statement()) { - _set_error("Expected end of statement (\"enum\")."); + _set_end_statement_error("enum"); return; } @@ -5227,8 +5339,11 @@ void GDScriptParser::_parse_class(ClassNode *p_class) { } } break; - default: { + case GDScriptTokenizer::TK_CF_PASS: { + tokenizer->advance(); + } break; + default: { _set_error(String() + "Unexpected token: " + tokenizer->get_token_name(tokenizer->get_token()) + ":" + tokenizer->get_token_identifier()); return; @@ -5238,7 +5353,6 @@ void GDScriptParser::_parse_class(ClassNode *p_class) { } void GDScriptParser::_determine_inheritance(ClassNode *p_class, bool p_recursive) { - if (p_class->base_type.has_type) { // Already determined } else if (p_class->extends_used) { @@ -5247,13 +5361,12 @@ void GDScriptParser::_determine_inheritance(ClassNode *p_class, bool p_recursive Ref<GDScript> script; StringName native; - ClassNode *base_class = NULL; + ClassNode *base_class = nullptr; if (path != "") { //path (and optionally subclasses) if (path.is_rel_path()) { - String base = base_path; if (base == "" || base.is_rel_path()) { @@ -5268,22 +5381,17 @@ void GDScriptParser::_determine_inheritance(ClassNode *p_class, bool p_recursive return; } if (!script->is_valid()) { - _set_error("Script isn't fully loaded (cyclic preload?): " + path, p_class->line); return; } if (p_class->extends_class.size()) { - for (int i = 0; i < p_class->extends_class.size(); i++) { - String sub = p_class->extends_class[i]; if (script->get_subclasses().has(sub)) { - Ref<Script> subclass = script->get_subclasses()[sub]; //avoid reference from disappearing script = subclass; } else { - _set_error("Couldn't find the subclass: " + sub, p_class->line); return; } @@ -5291,7 +5399,6 @@ void GDScriptParser::_determine_inheritance(ClassNode *p_class, bool p_recursive } } else { - if (p_class->extends_class.size() == 0) { _set_error("Parser bug: undecidable inheritance.", p_class->line); ERR_FAIL(); @@ -5309,7 +5416,7 @@ void GDScriptParser::_determine_inheritance(ClassNode *p_class, bool p_recursive _set_error("The class \"" + base + "\" couldn't be fully loaded (script error or cyclic dependency).", p_class->line); return; } - p = NULL; + p = nullptr; } else { List<PropertyInfo> props; ProjectSettings::get_singleton()->get_property_list(&props); @@ -5332,13 +5439,12 @@ void GDScriptParser::_determine_inheritance(ClassNode *p_class, bool p_recursive _set_error("Class '" + base + "' could not be fully loaded (script error or cyclic inheritance).", p_class->line); return; } - p = NULL; + p = nullptr; } } } while (p) { - bool found = false; for (int i = 0; i < p->subclasses.size(); i++) { @@ -5367,8 +5473,12 @@ void GDScriptParser::_determine_inheritance(ClassNode *p_class, bool p_recursive } } - if (base_class) break; - if (found) continue; + if (base_class) { + break; + } + if (found) { + continue; + } if (p->constant_expressions.has(base)) { if (p->constant_expressions[base].expression->type != Node::TYPE_CONSTANT) { @@ -5388,21 +5498,17 @@ void GDScriptParser::_determine_inheritance(ClassNode *p_class, bool p_recursive } if (base_script.is_valid()) { - String ident = base; Ref<GDScript> find_subclass = base_script; for (int i = extend_iter; i < p_class->extends_class.size(); i++) { - String subclass = p_class->extends_class[i]; ident += ("." + subclass); if (find_subclass->get_subclasses().has(subclass)) { - find_subclass = find_subclass->get_subclasses()[subclass]; } else if (find_subclass->get_constants().has(subclass)) { - Ref<GDScript> new_base_class = find_subclass->get_constants()[subclass]; if (new_base_class.is_null()) { _set_error("Constant isn't a class: " + ident, p_class->line); @@ -5410,7 +5516,6 @@ void GDScriptParser::_determine_inheritance(ClassNode *p_class, bool p_recursive } find_subclass = new_base_class; } else { - _set_error("Couldn't find the subclass: " + ident, p_class->line); return; } @@ -5419,15 +5524,12 @@ void GDScriptParser::_determine_inheritance(ClassNode *p_class, bool p_recursive script = find_subclass; } else if (!base_class) { - if (p_class->extends_class.size() > 1) { - _set_error("Invalid inheritance (unknown class + subclasses).", p_class->line); return; } //if not found, try engine classes if (!GDScriptLanguage::get_singleton()->get_global_map().has(base)) { - _set_error("Unknown class: \"" + base + "\"", p_class->line); return; } @@ -5470,10 +5572,14 @@ void GDScriptParser::_determine_inheritance(ClassNode *p_class, bool p_recursive } String GDScriptParser::DataType::to_string() const { - if (!has_type) return "var"; + if (!has_type) { + return "var"; + } switch (kind) { case BUILTIN: { - if (builtin_type == Variant::NIL) return "null"; + if (builtin_type == Variant::NIL) { + return "null"; + } return Variant::get_type_name(builtin_type); } break; case NATIVE: { @@ -5637,8 +5743,12 @@ bool GDScriptParser::_parse_type(DataType &r_type, bool p_can_be_void) { } GDScriptParser::DataType GDScriptParser::_resolve_type(const DataType &p_source, int p_line) { - if (!p_source.has_type) return p_source; - if (p_source.kind != DataType::UNRESOLVED) return p_source; + if (!p_source.has_type) { + return p_source; + } + if (p_source.kind != DataType::UNRESOLVED) { + return p_source; + } Vector<String> full_name = p_source.native_type.operator String().split(".", false); int name_part = 0; @@ -5647,12 +5757,11 @@ GDScriptParser::DataType GDScriptParser::_resolve_type(const DataType &p_source, result.has_type = true; while (name_part < full_name.size()) { - bool found = false; StringName id = full_name[name_part]; DataType base_type = result; - ClassNode *p = NULL; + ClassNode *p = nullptr; if (name_part == 0) { if (ScriptServer::is_global_class(id)) { String script_path = ScriptServer::get_global_class_path(id); @@ -5934,7 +6043,7 @@ GDScriptParser::DataType GDScriptParser::_get_operation_type(const Variant::Oper a = a_ref; } else { Callable::CallError err; - a = Variant::construct(a_type, NULL, 0, err); + a = Variant::construct(a_type, nullptr, 0, err); if (err.error != Callable::CallError::CALL_OK) { r_valid = false; return DataType(); @@ -5947,7 +6056,7 @@ GDScriptParser::DataType GDScriptParser::_get_operation_type(const Variant::Oper b = b_ref; } else { Callable::CallError err; - b = Variant::construct(b_type, NULL, 0, err); + b = Variant::construct(b_type, nullptr, 0, err); if (err.error != Callable::CallError::CALL_OK) { r_valid = false; return DataType(); @@ -6108,7 +6217,7 @@ bool GDScriptParser::_is_type_compatible(const DataType &p_container, const Data StringName expr_native; Ref<Script> expr_script; - ClassNode *expr_class = NULL; + ClassNode *expr_class = nullptr; switch (p_expression.kind) { case DataType::NATIVE: { @@ -6219,12 +6328,14 @@ GDScriptParser::Node *GDScriptParser::_get_default_value_for_type(const DataType } else { ConstantNode *c = alloc_node<ConstantNode>(); Callable::CallError err; - c->value = Variant::construct(p_type.builtin_type, NULL, 0, err); + c->value = Variant::construct(p_type.builtin_type, nullptr, 0, err); + c->datatype = _type_from_variant(c->value); result = c; } } else { ConstantNode *c = alloc_node<ConstantNode>(); c->value = Variant(); + c->datatype = _type_from_variant(c->value); result = c; } @@ -6298,7 +6409,7 @@ GDScriptParser::DataType GDScriptParser::_reduce_node_type(Node *p_node) { int idx = current_function->arguments.find(id->name); node_type = current_function->argument_types[idx]; } else { - node_type = _reduce_identifier_type(NULL, id->name, id->line, false); + node_type = _reduce_identifier_type(nullptr, id->name, id->line, false); } } break; case Node::TYPE_CAST: { @@ -6307,7 +6418,6 @@ GDScriptParser::DataType GDScriptParser::_reduce_node_type(Node *p_node) { DataType source_type = _reduce_node_type(cn->source_node); cn->cast_type = _resolve_type(cn->cast_type, cn->line); if (source_type.has_type) { - bool valid = false; if (check_types) { if (cn->cast_type.kind == DataType::BUILTIN && source_type.kind == DataType::BUILTIN) { @@ -6361,7 +6471,6 @@ GDScriptParser::DataType GDScriptParser::_reduce_node_type(Node *p_node) { } break; case OperatorNode::OP_IS: case OperatorNode::OP_IS_BUILTIN: { - if (op->arguments.size() != 2) { _set_error("Parser bug: binary operation without 2 arguments.", op->line); ERR_FAIL_V(DataType()); @@ -6397,7 +6506,6 @@ GDScriptParser::DataType GDScriptParser::_reduce_node_type(Node *p_node) { case OperatorNode::OP_POS: case OperatorNode::OP_NOT: case OperatorNode::OP_BIT_INVERT: { - DataType argument_type = _reduce_node_type(op->arguments[0]); if (!argument_type.has_type) { break; @@ -6435,7 +6543,6 @@ GDScriptParser::DataType GDScriptParser::_reduce_node_type(Node *p_node) { case OperatorNode::OP_BIT_AND: case OperatorNode::OP_BIT_OR: case OperatorNode::OP_BIT_XOR: { - if (op->arguments.size() != 2) { _set_error("Parser bug: binary operation without 2 arguments.", op->line); ERR_FAIL_V(DataType()); @@ -6503,7 +6610,6 @@ GDScriptParser::DataType GDScriptParser::_reduce_node_type(Node *p_node) { case OperatorNode::OP_ASSIGN_BIT_OR: case OperatorNode::OP_ASSIGN_BIT_XOR: case OperatorNode::OP_INIT_ASSIGN: { - _set_error("Assignment inside an expression isn't allowed (parser bug?).", op->line); return DataType(); @@ -6532,7 +6638,7 @@ GDScriptParser::DataType GDScriptParser::_reduce_node_type(Node *p_node) { } break; default: { Callable::CallError err; - Variant temp = Variant::construct(base_type.builtin_type, NULL, 0, err); + Variant temp = Variant::construct(base_type.builtin_type, nullptr, 0, err); bool valid = false; Variant res = temp.get(member_id->name.operator String(), &valid); @@ -6553,6 +6659,7 @@ GDScriptParser::DataType GDScriptParser::_reduce_node_type(Node *p_node) { node_type = _reduce_identifier_type(&base_type, member_id->name, op->line, true); #ifdef DEBUG_ENABLED if (!node_type.has_type) { + _mark_line_as_unsafe(op->line); _add_warning(GDScriptWarning::UNSAFE_PROPERTY_ACCESS, op->line, member_id->name.operator String(), base_type.to_string()); } #endif // DEBUG_ENABLED @@ -6565,7 +6672,6 @@ GDScriptParser::DataType GDScriptParser::_reduce_node_type(Node *p_node) { } } break; case OperatorNode::OP_INDEX: { - if (op->arguments[1]->type == Node::TYPE_CONSTANT) { ConstantNode *cn = static_cast<ConstantNode *>(op->arguments[1]); if (cn->value.get_type() == Variant::STRING) { @@ -6573,6 +6679,7 @@ GDScriptParser::DataType GDScriptParser::_reduce_node_type(Node *p_node) { IdentifierNode *id = alloc_node<IdentifierNode>(); id->name = cn->value.operator StringName(); + id->datatype = cn->datatype; op->op = OperatorNode::OP_INDEX_NAMED; op->arguments.write[1] = id; @@ -6661,7 +6768,7 @@ GDScriptParser::DataType GDScriptParser::_reduce_node_type(Node *p_node) { } default: { Callable::CallError err; - Variant temp = Variant::construct(base_type.builtin_type, NULL, 0, err); + Variant temp = Variant::construct(base_type.builtin_type, nullptr, 0, err); bool valid = false; Variant res = temp.get(cn->value, &valid); @@ -6763,13 +6870,12 @@ GDScriptParser::DataType GDScriptParser::_reduce_node_type(Node *p_node) { } bool GDScriptParser::_get_function_signature(DataType &p_base_type, const StringName &p_function, DataType &r_return_type, List<DataType> &r_arg_types, int &r_default_arg_count, bool &r_static, bool &r_vararg) const { - r_static = false; r_default_arg_count = 0; DataType original_type = p_base_type; - ClassNode *base = NULL; - FunctionNode *callee = NULL; + ClassNode *base = nullptr; + FunctionNode *callee = nullptr; if (p_base_type.kind == DataType::CLASS) { base = p_base_type.class_type; @@ -6874,7 +6980,9 @@ bool GDScriptParser::_get_function_signature(DataType &p_base_type, const String native = "_" + native.operator String(); } if (!ClassDB::class_exists(native)) { - if (!check_types) return false; + if (!check_types) { + return false; + } ERR_FAIL_V_MSG(false, "Parser bug: Class '" + String(native) + "' not found."); } @@ -6965,7 +7073,9 @@ GDScriptParser::DataType GDScriptParser::_reduce_function_call_type(const Operat par_types.write[i - 1] = _reduce_node_type(p_call->arguments[i]); } - if (error_set) return DataType(); + if (error_set) { + return DataType(); + } // Special case: check copy constructor. Those are defined implicitly in Variant. if (par_types.size() == 1) { @@ -7033,7 +7143,9 @@ GDScriptParser::DataType GDScriptParser::_reduce_function_call_type(const Operat err += "' matches the signature '"; err += Variant::get_type_name(tn->vtype) + "("; for (int i = 0; i < par_types.size(); i++) { - if (i > 0) err += ", "; + if (i > 0) { + err += ", "; + } err += par_types[i].to_string(); } err += ")'."; @@ -7102,7 +7214,7 @@ GDScriptParser::DataType GDScriptParser::_reduce_function_call_type(const Operat if (base_type.kind == DataType::BUILTIN) { Callable::CallError err; - Variant tmp = Variant::construct(base_type.builtin_type, NULL, 0, err); + Variant tmp = Variant::construct(base_type.builtin_type, nullptr, 0, err); if (check_types) { if (!tmp.has_method(callee_name)) { @@ -7242,8 +7354,8 @@ GDScriptParser::DataType GDScriptParser::_reduce_function_call_type(const Operat } else if (!_is_type_compatible(arg_types[i - arg_diff], par_type, true)) { // Supertypes are acceptable for dynamic compliance if (!_is_type_compatible(par_type, arg_types[i - arg_diff])) { - _set_error("At \"" + callee_name + "()\" call, argument " + itos(i - arg_diff + 1) + ". Assigned type (" + - par_type.to_string() + ") doesn't match the function argument's type (" + + _set_error("At \"" + callee_name + "()\" call, argument " + itos(i - arg_diff + 1) + ". The passed argument's type (" + + par_type.to_string() + ") doesn't match the function's expected argument type (" + arg_types[i - arg_diff].to_string() + ").", p_call->line); return DataType(); @@ -7262,17 +7374,20 @@ GDScriptParser::DataType GDScriptParser::_reduce_function_call_type(const Operat return return_type; } -bool GDScriptParser::_get_member_type(const DataType &p_base_type, const StringName &p_member, DataType &r_member_type) const { +bool GDScriptParser::_get_member_type(const DataType &p_base_type, const StringName &p_member, DataType &r_member_type, bool *r_is_const) const { DataType base_type = p_base_type; // Check classes in current file - ClassNode *base = NULL; + ClassNode *base = nullptr; if (base_type.kind == DataType::CLASS) { base = base_type.class_type; } while (base) { if (base->constant_expressions.has(p_member)) { + if (r_is_const) { + *r_is_const = true; + } r_member_type = base->constant_expressions[p_member].expression->get_datatype(); return true; } @@ -7355,6 +7470,8 @@ bool GDScriptParser::_get_member_type(const DataType &p_base_type, const StringN } } +#define IS_USAGE_MEMBER(m_usage) (!(m_usage & (PROPERTY_USAGE_GROUP | PROPERTY_USAGE_SUBGROUP | PROPERTY_USAGE_CATEGORY))) + // Check other script types while (scr.is_valid()) { Map<StringName, Variant> constants; @@ -7367,7 +7484,7 @@ bool GDScriptParser::_get_member_type(const DataType &p_base_type, const StringN List<PropertyInfo> properties; scr->get_script_property_list(&properties); for (List<PropertyInfo>::Element *E = properties.front(); E; E = E->next()) { - if (E->get().name == p_member) { + if (E->get().name == p_member && IS_USAGE_MEMBER(E->get().usage)) { r_member_type = _type_from_property(E->get()); return true; } @@ -7389,7 +7506,9 @@ bool GDScriptParser::_get_member_type(const DataType &p_base_type, const StringN native = "_" + native.operator String(); } if (!ClassDB::class_exists(native)) { - if (!check_types) return false; + if (!check_types) { + return false; + } ERR_FAIL_V_MSG(false, "Parser bug: Class \"" + String(native) + "\" not found."); } @@ -7409,7 +7528,7 @@ bool GDScriptParser::_get_member_type(const DataType &p_base_type, const StringN List<PropertyInfo> properties; ClassDB::get_property_list(native, &properties); for (List<PropertyInfo>::Element *E = properties.front(); E; E = E->next()) { - if (E->get().name == p_member) { + if (E->get().name == p_member && IS_USAGE_MEMBER(E->get().usage)) { // Check if a getter exists StringName getter_name = ClassDB::get_property_getter(native, p_member); if (getter_name != StringName()) { @@ -7449,7 +7568,7 @@ bool GDScriptParser::_get_member_type(const DataType &p_base_type, const StringN List<PropertyInfo> properties; ClassDB::get_property_list(native, &properties); for (List<PropertyInfo>::Element *E = properties.front(); E; E = E->next()) { - if (E->get().name == p_member) { + if (E->get().name == p_member && IS_USAGE_MEMBER(E->get().usage)) { // Check if a getter exists StringName getter_name = ClassDB::get_property_getter(native, p_member); if (getter_name != StringName()) { @@ -7471,12 +7590,12 @@ bool GDScriptParser::_get_member_type(const DataType &p_base_type, const StringN } } } +#undef IS_USAGE_MEMBER return false; } GDScriptParser::DataType GDScriptParser::_reduce_identifier_type(const DataType *p_base_type, const StringName &p_identifier, int p_line, bool p_is_indexing) { - if (p_base_type && !p_base_type->has_type) { return DataType(); } @@ -7493,7 +7612,12 @@ GDScriptParser::DataType GDScriptParser::_reduce_identifier_type(const DataType base_type = DataType(*p_base_type); } - if (_get_member_type(base_type, p_identifier, member_type)) { + bool is_const = false; + if (_get_member_type(base_type, p_identifier, member_type, &is_const)) { + if (!p_base_type && current_function && current_function->_static && !is_const) { + _set_error("Can't access member variable (\"" + p_identifier.operator String() + "\") from a static function.", p_line); + return DataType(); + } return member_type; } @@ -7645,7 +7769,6 @@ GDScriptParser::DataType GDScriptParser::_reduce_identifier_type(const DataType } void GDScriptParser::_check_class_level_types(ClassNode *p_class) { - // Names of internal object properties that we check to avoid overriding them. // "__meta__" could also be in here, but since it doesn't really affect object metadata, // it is okay to override it on script. @@ -7681,12 +7804,16 @@ void GDScriptParser::_check_class_level_types(ClassNode *p_class) { // Function declarations for (int i = 0; i < p_class->static_functions.size(); i++) { _check_function_types(p_class->static_functions[i]); - if (error_set) return; + if (error_set) { + return; + } } for (int i = 0; i < p_class->functions.size(); i++) { _check_function_types(p_class->functions[i]); - if (error_set) return; + if (error_set) { + return; + } } // Class variables @@ -7701,6 +7828,7 @@ void GDScriptParser::_check_class_level_types(ClassNode *p_class) { _mark_line_as_safe(v.line); v.data_type = _resolve_type(v.data_type, v.line); + v.initial_assignment->arguments[0]->set_datatype(v.data_type); if (v.expression) { DataType expr_type = _reduce_node_type(v.expression); @@ -7725,7 +7853,7 @@ void GDScriptParser::_check_class_level_types(ClassNode *p_class) { ConstantNode *tgt_type = alloc_node<ConstantNode>(); tgt_type->line = v.line; - tgt_type->value = (int)v.data_type.builtin_type; + tgt_type->value = (int64_t)v.data_type.builtin_type; OperatorNode *convert_call = alloc_node<OperatorNode>(); convert_call->line = v.line; @@ -7744,6 +7872,10 @@ void GDScriptParser::_check_class_level_types(ClassNode *p_class) { _set_error("The assigned value doesn't have a set type; the variable type can't be inferred.", v.line); return; } + if (expr_type.kind == DataType::BUILTIN && expr_type.builtin_type == Variant::NIL) { + _set_error("The variable type cannot be inferred because its value is \"null\".", v.line); + return; + } v.data_type = expr_type; v.data_type.is_constant = false; } @@ -7761,7 +7893,9 @@ void GDScriptParser::_check_class_level_types(ClassNode *p_class) { } // Setter and getter - if (v.setter == StringName() && v.getter == StringName()) continue; + if (v.setter == StringName() && v.getter == StringName()) { + continue; + } bool found_getter = false; bool found_setter = false; @@ -7804,10 +7938,14 @@ void GDScriptParser::_check_class_level_types(ClassNode *p_class) { return; } } - if (found_getter && found_setter) break; + if (found_getter && found_setter) { + break; + } } - if ((found_getter || v.getter == StringName()) && (found_setter || v.setter == StringName())) continue; + if ((found_getter || v.getter == StringName()) && (found_setter || v.setter == StringName())) { + continue; + } // Check for static functions for (int j = 0; j < p_class->static_functions.size(); j++) { @@ -7834,17 +7972,59 @@ void GDScriptParser::_check_class_level_types(ClassNode *p_class) { } } + // Signals + DataType base = p_class->base_type; + + while (base.kind == DataType::CLASS) { + ClassNode *base_class = base.class_type; + for (int i = 0; i < p_class->_signals.size(); i++) { + for (int j = 0; j < base_class->_signals.size(); j++) { + if (p_class->_signals[i].name == base_class->_signals[j].name) { + _set_error("The signal \"" + p_class->_signals[i].name + "\" already exists in a parent class.", p_class->_signals[i].line); + return; + } + } + } + base = base_class->base_type; + } + + StringName native; + if (base.kind == DataType::GDSCRIPT || base.kind == DataType::SCRIPT) { + Ref<Script> scr = base.script_type; + if (scr.is_valid() && scr->is_valid()) { + native = scr->get_instance_base_type(); + for (int i = 0; i < p_class->_signals.size(); i++) { + if (scr->has_script_signal(p_class->_signals[i].name)) { + _set_error("The signal \"" + p_class->_signals[i].name + "\" already exists in a parent class.", p_class->_signals[i].line); + return; + } + } + } + } else if (base.kind == DataType::NATIVE) { + native = base.native_type; + } + + if (native != StringName()) { + for (int i = 0; i < p_class->_signals.size(); i++) { + if (ClassDB::has_signal(native, p_class->_signals[i].name)) { + _set_error("The signal \"" + p_class->_signals[i].name + "\" already exists in a parent class.", p_class->_signals[i].line); + return; + } + } + } + // Inner classes for (int i = 0; i < p_class->subclasses.size(); i++) { current_class = p_class->subclasses[i]; _check_class_level_types(current_class); - if (error_set) return; + if (error_set) { + return; + } current_class = p_class; } } void GDScriptParser::_check_function_types(FunctionNode *p_function) { - p_function->return_type = _resolve_type(p_function->return_type, p_function->line); // Arguments @@ -7963,30 +8143,20 @@ void GDScriptParser::_check_function_types(FunctionNode *p_function) { p_function->return_type.has_type = false; p_function->return_type.may_yield = true; } - -#ifdef DEBUG_ENABLED - for (Map<StringName, LocalVarNode *>::Element *E = p_function->body->variables.front(); E; E = E->next()) { - LocalVarNode *lv = E->get(); - for (int i = 0; i < current_class->variables.size(); i++) { - if (current_class->variables[i].identifier == lv->name) { - _add_warning(GDScriptWarning::SHADOWED_VARIABLE, lv->line, lv->name, itos(current_class->variables[i].line)); - } - } - } -#endif // DEBUG_ENABLED } void GDScriptParser::_check_class_blocks_types(ClassNode *p_class) { - // Function blocks for (int i = 0; i < p_class->static_functions.size(); i++) { current_function = p_class->static_functions[i]; current_block = current_function->body; _mark_line_as_safe(current_function->line); _check_block_types(current_block); - current_block = NULL; - current_function = NULL; - if (error_set) return; + current_block = nullptr; + current_function = nullptr; + if (error_set) { + return; + } } for (int i = 0; i < p_class->functions.size(); i++) { @@ -7994,9 +8164,11 @@ void GDScriptParser::_check_class_blocks_types(ClassNode *p_class) { current_block = current_function->body; _mark_line_as_safe(current_function->line); _check_block_types(current_block); - current_block = NULL; - current_function = NULL; - if (error_set) return; + current_block = nullptr; + current_function = nullptr; + if (error_set) { + return; + } } #ifdef DEBUG_ENABLED @@ -8017,7 +8189,9 @@ void GDScriptParser::_check_class_blocks_types(ClassNode *p_class) { for (int i = 0; i < p_class->subclasses.size(); i++) { current_class = p_class->subclasses[i]; _check_class_blocks_types(current_class); - if (error_set) return; + if (error_set) { + return; + } current_class = p_class; } } @@ -8043,18 +8217,22 @@ static String _find_function_name(const GDScriptParser::OperatorNode *p_call) { #endif // DEBUG_ENABLED void GDScriptParser::_check_block_types(BlockNode *p_block) { - - Node *last_var_assign = NULL; + Node *last_var_assign = nullptr; // Check each statement for (List<Node *>::Element *E = p_block->statements.front(); E; E = E->next()) { Node *statement = E->get(); switch (statement->type) { case Node::TYPE_NEWLINE: - case Node::TYPE_BREAKPOINT: - case Node::TYPE_ASSERT: { + case Node::TYPE_BREAKPOINT: { // Nothing to do } break; + case Node::TYPE_ASSERT: { + AssertNode *an = static_cast<AssertNode *>(statement); + _mark_line_as_safe(an->line); + _reduce_node_type(an->condition); + _reduce_node_type(an->message); + } break; case Node::TYPE_LOCAL_VAR: { LocalVarNode *lv = static_cast<LocalVarNode *>(statement); lv->datatype = _resolve_type(lv->datatype, lv->line); @@ -8076,6 +8254,11 @@ void GDScriptParser::_check_block_types(BlockNode *p_block) { if (lv->datatype.has_type && assign_type.may_yield && lv->assign->type == Node::TYPE_OPERATOR) { _add_warning(GDScriptWarning::FUNCTION_MAY_YIELD, lv->line, _find_function_name(static_cast<OperatorNode *>(lv->assign))); } + for (int i = 0; i < current_class->variables.size(); i++) { + if (current_class->variables[i].identifier == lv->name) { + _add_warning(GDScriptWarning::SHADOWED_VARIABLE, lv->line, lv->name, itos(current_class->variables[i].line)); + } + } #endif // DEBUG_ENABLED if (!_is_type_compatible(lv->datatype, assign_type)) { @@ -8097,7 +8280,8 @@ void GDScriptParser::_check_block_types(BlockNode *p_block) { ConstantNode *tgt_type = alloc_node<ConstantNode>(); tgt_type->line = lv->line; - tgt_type->value = (int)lv->datatype.builtin_type; + tgt_type->value = (int64_t)lv->datatype.builtin_type; + tgt_type->datatype = _type_from_variant(tgt_type->value); OperatorNode *convert_call = alloc_node<OperatorNode>(); convert_call->line = lv->line; @@ -8120,6 +8304,10 @@ void GDScriptParser::_check_block_types(BlockNode *p_block) { _set_error("The assigned value doesn't have a set type; the variable type can't be inferred.", lv->line); return; } + if (assign_type.kind == DataType::BUILTIN && assign_type.builtin_type == Variant::NIL) { + _set_error("The variable type cannot be inferred because its value is \"null\".", lv->line); + return; + } lv->datatype = assign_type; lv->datatype.is_constant = false; } @@ -8233,6 +8421,7 @@ void GDScriptParser::_check_block_types(BlockNode *p_block) { ConstantNode *tgt_type = alloc_node<ConstantNode>(); tgt_type->line = op->line; tgt_type->value = (int)lh_type.builtin_type; + tgt_type->datatype = _type_from_variant(tgt_type->value); OperatorNode *convert_call = alloc_node<OperatorNode>(); convert_call->line = op->line; @@ -8273,7 +8462,9 @@ void GDScriptParser::_check_block_types(BlockNode *p_block) { _add_warning(GDScriptWarning::RETURN_VALUE_DISCARDED, op->line, func_name); } #endif // DEBUG_ENABLED - if (error_set) return; + if (error_set) { + return; + } } break; case OperatorNode::OP_YIELD: { _mark_line_as_safe(op->line); @@ -8308,7 +8499,9 @@ void GDScriptParser::_check_block_types(BlockNode *p_block) { } } - if (!function_type.has_type) break; + if (!function_type.has_type) { + break; + } if (function_type.kind == DataType::BUILTIN && function_type.builtin_type == Variant::NIL) { // Return void, should not have arguments @@ -8368,7 +8561,9 @@ void GDScriptParser::_check_block_types(BlockNode *p_block) { current_block = p_block->sub_blocks[i]; _check_block_types(current_block); current_block = p_block; - if (error_set) return; + if (error_set) { + return; + } } #ifdef DEBUG_ENABLED @@ -8387,9 +8582,9 @@ void GDScriptParser::_check_block_types(BlockNode *p_block) { } void GDScriptParser::_set_error(const String &p_error, int p_line, int p_column) { - - if (error_set) + if (error_set) { return; //allow no further errors + } error = p_error; error_line = p_line < 0 ? tokenizer->get_token_line() : p_line; @@ -8435,7 +8630,7 @@ void GDScriptParser::_add_warning(int p_code, int p_line, const Vector<String> & warn.symbols = p_symbols; warn.line = p_line == -1 ? tokenizer->get_token_line() : p_line; - List<GDScriptWarning>::Element *before = NULL; + List<GDScriptWarning>::Element *before = nullptr; for (List<GDScriptWarning>::Element *E = warnings.front(); E; E = E->next()) { if (E->get().line > warn.line) { break; @@ -8451,16 +8646,14 @@ void GDScriptParser::_add_warning(int p_code, int p_line, const Vector<String> & #endif // DEBUG_ENABLED String GDScriptParser::get_error() const { - return error; } int GDScriptParser::get_error_line() const { - return error_line; } -int GDScriptParser::get_error_column() const { +int GDScriptParser::get_error_column() const { return error_column; } @@ -8469,7 +8662,6 @@ bool GDScriptParser::has_error() const { } Error GDScriptParser::_parse(const String &p_base_path) { - base_path = p_base_path; //assume class @@ -8487,7 +8679,13 @@ Error GDScriptParser::_parse(const String &p_base_path) { _set_error("Parse error: " + tokenizer->get_token_error()); } - if (error_set && !for_completion) { + bool for_completion_error_set = false; + if (error_set && for_completion) { + for_completion_error_set = true; + error_set = false; + } + + if (error_set) { return ERR_PARSE_ERROR; } @@ -8502,10 +8700,12 @@ Error GDScriptParser::_parse(const String &p_base_path) { } current_class = main_class; - current_function = NULL; - current_block = NULL; + current_function = nullptr; + current_block = nullptr; - if (for_completion) check_types = false; + if (for_completion) { + check_types = false; + } // Resolve all class-level stuff before getting into function blocks _check_class_level_types(main_class); @@ -8517,6 +8717,10 @@ Error GDScriptParser::_parse(const String &p_base_path) { // Resolve the function blocks _check_class_blocks_types(main_class); + if (for_completion_error_set) { + error_set = true; + } + if (error_set) { return ERR_PARSE_ERROR; } @@ -8524,7 +8728,7 @@ Error GDScriptParser::_parse(const String &p_base_path) { #ifdef DEBUG_ENABLED // Resolve warning ignores - Vector<Pair<int, String> > warning_skips = tokenizer->get_warning_skips(); + Vector<Pair<int, String>> warning_skips = tokenizer->get_warning_skips(); bool warning_is_error = GLOBAL_GET("debug/gdscript/warnings/treat_warnings_as_errors").booleanize(); for (List<GDScriptWarning>::Element *E = warnings.front(); E;) { GDScriptWarning &w = E->get(); @@ -8557,7 +8761,6 @@ Error GDScriptParser::_parse(const String &p_base_path) { } Error GDScriptParser::parse_bytecode(const Vector<uint8_t> &p_bytecode, const String &p_base_path, const String &p_self_path) { - clear(); self_path = p_self_path; @@ -8566,12 +8769,11 @@ Error GDScriptParser::parse_bytecode(const Vector<uint8_t> &p_bytecode, const St tokenizer = tb; Error ret = _parse(p_base_path); memdelete(tb); - tokenizer = NULL; + tokenizer = nullptr; return ret; } Error GDScriptParser::parse(const String &p_code, const String &p_base_path, bool p_just_validate, const String &p_self_path, bool p_for_completion, Set<int> *r_safe_lines, bool p_dependencies_only) { - clear(); self_path = p_self_path; @@ -8587,44 +8789,40 @@ Error GDScriptParser::parse(const String &p_code, const String &p_base_path, boo tokenizer = tt; Error ret = _parse(p_base_path); memdelete(tt); - tokenizer = NULL; + tokenizer = nullptr; return ret; } bool GDScriptParser::is_tool_script() const { - return (head && head->type == Node::TYPE_CLASS && static_cast<const ClassNode *>(head)->tool); } const GDScriptParser::Node *GDScriptParser::get_parse_tree() const { - return head; } void GDScriptParser::clear() { - while (list) { - Node *l = list; list = list->next; memdelete(l); } - head = NULL; - list = NULL; + head = nullptr; + list = nullptr; completion_type = COMPLETION_NONE; - completion_node = NULL; - completion_class = NULL; - completion_function = NULL; - completion_block = NULL; - current_block = NULL; - current_class = NULL; + completion_node = nullptr; + completion_class = nullptr; + completion_function = nullptr; + completion_block = nullptr; + current_block = nullptr; + current_class = nullptr; completion_found = false; rpc_mode = MultiplayerAPI::RPC_MODE_DISABLED; - current_function = NULL; + current_function = nullptr; validating = false; for_completion = false; @@ -8641,70 +8839,58 @@ void GDScriptParser::clear() { dependencies.clear(); error = ""; #ifdef DEBUG_ENABLED - safe_lines = NULL; + safe_lines = nullptr; #endif // DEBUG_ENABLED } GDScriptParser::CompletionType GDScriptParser::get_completion_type() { - return completion_type; } StringName GDScriptParser::get_completion_cursor() { - return completion_cursor; } int GDScriptParser::get_completion_line() { - return completion_line; } Variant::Type GDScriptParser::get_completion_built_in_constant() { - return completion_built_in_constant; } GDScriptParser::Node *GDScriptParser::get_completion_node() { - return completion_node; } GDScriptParser::BlockNode *GDScriptParser::get_completion_block() { - return completion_block; } GDScriptParser::ClassNode *GDScriptParser::get_completion_class() { - return completion_class; } GDScriptParser::FunctionNode *GDScriptParser::get_completion_function() { - return completion_function; } int GDScriptParser::get_completion_argument_index() { - return completion_argument; } -int GDScriptParser::get_completion_identifier_is_function() { - +bool GDScriptParser::get_completion_identifier_is_function() { return completion_ident_is_call; } GDScriptParser::GDScriptParser() { - - head = NULL; - list = NULL; - tokenizer = NULL; + head = nullptr; + list = nullptr; + tokenizer = nullptr; pending_newline = -1; clear(); } GDScriptParser::~GDScriptParser() { - clear(); } |