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-rw-r--r--modules/gdscript/gdscript.cpp5
-rw-r--r--modules/gdscript/gdscript.h1
-rw-r--r--modules/gdscript/gdscript_compiler.cpp23
-rw-r--r--modules/gdscript/gdscript_parser.cpp49
4 files changed, 73 insertions, 5 deletions
diff --git a/modules/gdscript/gdscript.cpp b/modules/gdscript/gdscript.cpp
index 0676317f6e..eada389c51 100644
--- a/modules/gdscript/gdscript.cpp
+++ b/modules/gdscript/gdscript.cpp
@@ -1945,6 +1945,10 @@ String GDScriptWarning::get_message() const {
CHECK_SYMBOLS(1);
return "The local variable '" + symbols[0] + "' is declared but never used in the block.";
} break;
+ case SHADOWED_VARIABLE: {
+ CHECK_SYMBOLS(2);
+ return "The local variable '" + symbols[0] + "' is shadowing an already defined variable at line " + symbols[1] + ".";
+ } break;
case UNUSED_CLASS_VARIABLE: {
CHECK_SYMBOLS(1);
return "The class variable '" + symbols[0] + "' is declared but never used in the script.";
@@ -2048,6 +2052,7 @@ String GDScriptWarning::get_name_from_code(Code p_code) {
"UNASSIGNED_VARIABLE",
"UNASSIGNED_VARIABLE_OP_ASSIGN",
"UNUSED_VARIABLE",
+ "SHADOWED_VARIABLE",
"UNUSED_CLASS_VARIABLE",
"UNUSED_ARGUMENT",
"UNREACHABLE_CODE",
diff --git a/modules/gdscript/gdscript.h b/modules/gdscript/gdscript.h
index c67e390e32..1d75d9e2fe 100644
--- a/modules/gdscript/gdscript.h
+++ b/modules/gdscript/gdscript.h
@@ -273,6 +273,7 @@ struct GDScriptWarning {
UNASSIGNED_VARIABLE, // Variable used but never assigned
UNASSIGNED_VARIABLE_OP_ASSIGN, // Variable never assigned but used in an assignment operation (+=, *=, etc)
UNUSED_VARIABLE, // Local variable is declared but never used
+ SHADOWED_VARIABLE, // Variable name shadowed by other variable
UNUSED_CLASS_VARIABLE, // Class variable is declared but never used in the file
UNUSED_ARGUMENT, // Function argument is never used
UNREACHABLE_CODE, // Code after a return statement
diff --git a/modules/gdscript/gdscript_compiler.cpp b/modules/gdscript/gdscript_compiler.cpp
index ae67521749..f7be0ce37c 100644
--- a/modules/gdscript/gdscript_compiler.cpp
+++ b/modules/gdscript/gdscript_compiler.cpp
@@ -480,16 +480,16 @@ int GDScriptCompiler::_parse_expression(CodeGen &codegen, const GDScriptParser::
switch (cast_type.kind) {
case GDScriptDataType::BUILTIN: {
codegen.opcodes.push_back(GDScriptFunction::OPCODE_CAST_TO_BUILTIN);
- codegen.opcodes.push_back(cn->cast_type.builtin_type);
+ codegen.opcodes.push_back(cast_type.builtin_type);
} break;
case GDScriptDataType::NATIVE: {
int class_idx;
- if (GDScriptLanguage::get_singleton()->get_global_map().has(cn->cast_type.native_type)) {
+ if (GDScriptLanguage::get_singleton()->get_global_map().has(cast_type.native_type)) {
- class_idx = GDScriptLanguage::get_singleton()->get_global_map()[cn->cast_type.native_type];
+ class_idx = GDScriptLanguage::get_singleton()->get_global_map()[cast_type.native_type];
class_idx |= (GDScriptFunction::ADDR_TYPE_GLOBAL << GDScriptFunction::ADDR_BITS); //argument (stack root)
} else {
- _set_error("Invalid native class type '" + String(cn->cast_type.native_type) + "'.", cn);
+ _set_error("Invalid native class type '" + String(cast_type.native_type) + "'.", cn);
return -1;
}
codegen.opcodes.push_back(GDScriptFunction::OPCODE_CAST_TO_NATIVE); // perform operator
@@ -498,7 +498,7 @@ int GDScriptCompiler::_parse_expression(CodeGen &codegen, const GDScriptParser::
case GDScriptDataType::SCRIPT:
case GDScriptDataType::GDSCRIPT: {
- Variant script = cn->cast_type.script_type;
+ Variant script = cast_type.script_type;
int idx = codegen.get_constant_pos(script);
idx |= GDScriptFunction::ADDR_TYPE_LOCAL_CONSTANT << GDScriptFunction::ADDR_BITS; //make it a local constant (faster access)
@@ -1863,6 +1863,19 @@ Error GDScriptCompiler::_parse_class_level(GDScript *p_script, const GDScriptPar
p_script->base = base;
p_script->_base = base.ptr();
p_script->member_indices = base->member_indices;
+
+ if (p_class->base_type.kind == GDScriptParser::DataType::CLASS) {
+ if (!parsed_classes.has(p_script->_base)) {
+ if (parsing_classes.has(p_script->_base)) {
+ _set_error("Cyclic class reference for '" + String(p_class->name) + "'.", p_class);
+ return ERR_PARSE_ERROR;
+ }
+ Error err = _parse_class_level(p_script->_base, p_class->base_type.class_type, p_keep_state);
+ if (err) {
+ return err;
+ }
+ }
+ }
} break;
default: {
_set_error("Parser bug: invalid inheritance.", p_class);
diff --git a/modules/gdscript/gdscript_parser.cpp b/modules/gdscript/gdscript_parser.cpp
index 6ef906b98d..80af094c2c 100644
--- a/modules/gdscript/gdscript_parser.cpp
+++ b/modules/gdscript/gdscript_parser.cpp
@@ -3690,6 +3690,11 @@ void GDScriptParser::_parse_class(ClassNode *p_class) {
_add_warning(GDScriptWarning::FUNCTION_CONFLICTS_VARIABLE, -1, name);
}
}
+ for (int i = 0; i < p_class->subclasses.size(); i++) {
+ if (p_class->subclasses[i]->name == name) {
+ _add_warning(GDScriptWarning::FUNCTION_CONFLICTS_CONSTANT, -1, name);
+ }
+ }
#endif // DEBUG_ENABLED
if (tokenizer->get_token() != GDScriptTokenizer::TK_PARENTHESIS_OPEN) {
@@ -4634,6 +4639,13 @@ void GDScriptParser::_parse_class(ClassNode *p_class) {
return;
}
}
+
+ for (int i = 0; i < current_class->subclasses.size(); i++) {
+ if (current_class->subclasses[i]->name == member.identifier) {
+ _set_error("A class named '" + String(member.identifier) + "' already exists in this class (at line " + itos(current_class->subclasses[i]->line) + ").");
+ return;
+ }
+ }
#ifdef DEBUG_ENABLED
for (int i = 0; i < current_class->functions.size(); i++) {
if (current_class->functions[i]->name == member.identifier) {
@@ -4878,6 +4890,13 @@ void GDScriptParser::_parse_class(ClassNode *p_class) {
}
}
+ for (int i = 0; i < current_class->subclasses.size(); i++) {
+ if (current_class->subclasses[i]->name == const_id) {
+ _set_error("A class named '" + String(const_id) + "' already exists in this class (at line " + itos(current_class->subclasses[i]->line) + ").");
+ return;
+ }
+ }
+
tokenizer->advance();
if (tokenizer->get_token() == GDScriptTokenizer::TK_COLON) {
@@ -4948,6 +4967,13 @@ void GDScriptParser::_parse_class(ClassNode *p_class) {
}
}
+ for (int i = 0; i < current_class->subclasses.size(); i++) {
+ if (current_class->subclasses[i]->name == enum_name) {
+ _set_error("A class named '" + String(enum_name) + "' already exists in this class (at line " + itos(current_class->subclasses[i]->line) + ").");
+ return;
+ }
+ }
+
tokenizer->advance();
}
if (tokenizer->get_token() != GDScriptTokenizer::TK_CURLY_BRACKET_OPEN) {
@@ -5033,6 +5059,13 @@ void GDScriptParser::_parse_class(ClassNode *p_class) {
}
}
+ for (int i = 0; i < current_class->subclasses.size(); i++) {
+ if (current_class->subclasses[i]->name == const_id) {
+ _set_error("A class named '" + String(const_id) + "' already exists in this class (at line " + itos(current_class->subclasses[i]->line) + ").");
+ return;
+ }
+ }
+
ClassNode::Constant constant;
constant.type.has_type = true;
constant.type.kind = DataType::BUILTIN;
@@ -7625,6 +7658,11 @@ void GDScriptParser::_check_function_types(FunctionNode *p_function) {
if (p_function->arguments_usage[i] == 0 && !p_function->arguments[i].operator String().begins_with("_")) {
_add_warning(GDScriptWarning::UNUSED_ARGUMENT, p_function->line, p_function->name, p_function->arguments[i].operator String());
}
+ for (int j = 0; j < current_class->variables.size(); j++) {
+ if (current_class->variables[j].identifier == p_function->arguments[i]) {
+ _add_warning(GDScriptWarning::SHADOWED_VARIABLE, p_function->line, p_function->arguments[i], itos(current_class->variables[j].line));
+ }
+ }
#endif // DEBUG_ENABLED
}
@@ -7698,6 +7736,17 @@ 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) {