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Diffstat (limited to 'servers/rendering/shader_language.cpp')
-rw-r--r--servers/rendering/shader_language.cpp134
1 files changed, 85 insertions, 49 deletions
diff --git a/servers/rendering/shader_language.cpp b/servers/rendering/shader_language.cpp
index cf77d2156f..2e1ee41406 100644
--- a/servers/rendering/shader_language.cpp
+++ b/servers/rendering/shader_language.cpp
@@ -5252,21 +5252,32 @@ ShaderLanguage::Node *ShaderLanguage::_parse_expression(BlockNode *p_block, cons
expression.push_back(e);
continue;
} else {
- if (tk.type != TK_SEMICOLON) {
- _set_error(vformat(RTR("Expected expression, found: '%s'."), get_token_text(tk)));
- return nullptr;
- } else {
-#ifdef DEBUG_ENABLED
- if (check_warnings && HAS_WARNING(ShaderWarning::FORMATTING_ERROR_FLAG)) {
- _add_line_warning(ShaderWarning::FORMATTING_ERROR, RTR("Empty statement. Remove ';' to fix this warning."));
- }
-#endif // DEBUG_ENABLED
+ bool valid = false;
+ if (p_block && p_block->block_type == BlockNode::BLOCK_TYPE_FOR_EXPRESSION && tk.type == TK_PARENTHESIS_CLOSE) {
+ valid = true;
_set_tkpos(prepos);
OperatorNode *func = alloc_node<OperatorNode>();
func->op = OP_EMPTY;
expr = func;
}
+ if (!valid) {
+ if (tk.type != TK_SEMICOLON) {
+ _set_error(vformat(RTR("Expected expression, found: '%s'."), get_token_text(tk)));
+ return nullptr;
+ } else {
+#ifdef DEBUG_ENABLED
+ if (check_warnings && HAS_WARNING(ShaderWarning::FORMATTING_ERROR_FLAG)) {
+ _add_line_warning(ShaderWarning::FORMATTING_ERROR, RTR("Empty statement. Remove ';' to fix this warning."));
+ }
+#endif // DEBUG_ENABLED
+ _set_tkpos(prepos);
+
+ OperatorNode *func = alloc_node<OperatorNode>();
+ func->op = OP_EMPTY;
+ expr = func;
+ }
+ }
}
ERR_FAIL_COND_V(!expr, nullptr);
@@ -6769,14 +6780,9 @@ Error ShaderLanguage::_parse_block(BlockNode *p_block, const FunctionInfo &p_fun
array_size = 0;
}
- if (tk.type == TK_COMMA) {
- if (p_block->block_type == BlockNode::BLOCK_TYPE_FOR) {
- _set_error(vformat("Multiple declarations in '%s' loop are not supported.", "for"));
- return ERR_PARSE_ERROR;
- }
- } else if (tk.type == TK_SEMICOLON) {
+ if (tk.type == TK_SEMICOLON) {
break;
- } else {
+ } else if (tk.type != TK_COMMA) {
_set_expected_error(",", ";");
return ERR_PARSE_ERROR;
}
@@ -7138,43 +7144,35 @@ Error ShaderLanguage::_parse_block(BlockNode *p_block, const FunctionInfo &p_fun
cf->flow_op = FLOW_OP_FOR;
BlockNode *init_block = alloc_node<BlockNode>();
- init_block->block_type = BlockNode::BLOCK_TYPE_FOR;
+ init_block->block_type = BlockNode::BLOCK_TYPE_FOR_INIT;
init_block->parent_block = p_block;
init_block->single_statement = true;
cf->blocks.push_back(init_block);
- if (_parse_block(init_block, p_function_info, true, false, false) != OK) {
- return ERR_PARSE_ERROR;
- }
-
- Node *n = _parse_and_reduce_expression(init_block, p_function_info);
- if (!n) {
- return ERR_PARSE_ERROR;
- }
-
- if (n->get_datatype() != TYPE_BOOL) {
- _set_error(RTR("The middle expression is expected to be boolean."));
- return ERR_PARSE_ERROR;
- }
-
- tk = _get_token();
- if (tk.type != TK_SEMICOLON) {
- _set_expected_error(";");
- return ERR_PARSE_ERROR;
+ Error err = _parse_block(init_block, p_function_info, true, false, false);
+ if (err != OK) {
+ return err;
}
- cf->expressions.push_back(n);
-
- n = _parse_and_reduce_expression(init_block, p_function_info);
- if (!n) {
- return ERR_PARSE_ERROR;
+ BlockNode *condition_block = alloc_node<BlockNode>();
+ condition_block->block_type = BlockNode::BLOCK_TYPE_FOR_CONDITION;
+ condition_block->parent_block = init_block;
+ condition_block->single_statement = true;
+ condition_block->use_comma_between_statements = true;
+ cf->blocks.push_back(condition_block);
+ err = _parse_block(condition_block, p_function_info, true, false, false);
+ if (err != OK) {
+ return err;
}
- cf->expressions.push_back(n);
-
- tk = _get_token();
- if (tk.type != TK_PARENTHESIS_CLOSE) {
- _set_expected_error(")");
- return ERR_PARSE_ERROR;
+ BlockNode *expression_block = alloc_node<BlockNode>();
+ expression_block->block_type = BlockNode::BLOCK_TYPE_FOR_EXPRESSION;
+ expression_block->parent_block = init_block;
+ expression_block->single_statement = true;
+ expression_block->use_comma_between_statements = true;
+ cf->blocks.push_back(expression_block);
+ err = _parse_block(expression_block, p_function_info, true, false, false);
+ if (err != OK) {
+ return err;
}
BlockNode *block = alloc_node<BlockNode>();
@@ -7182,8 +7180,8 @@ Error ShaderLanguage::_parse_block(BlockNode *p_block, const FunctionInfo &p_fun
cf->blocks.push_back(block);
p_block->statements.push_back(cf);
- Error err = _parse_block(block, p_function_info, true, true, true);
- if (err) {
+ err = _parse_block(block, p_function_info, true, true, true);
+ if (err != OK) {
return err;
}
@@ -7333,10 +7331,48 @@ Error ShaderLanguage::_parse_block(BlockNode *p_block, const FunctionInfo &p_fun
if (!expr) {
return ERR_PARSE_ERROR;
}
+
+ bool empty = false;
+
+ if (expr->type == Node::TYPE_OPERATOR) {
+ OperatorNode *op = static_cast<OperatorNode *>(expr);
+ if (op->op == OP_EMPTY) {
+ empty = true;
+ }
+ }
+ if (p_block->block_type == BlockNode::BLOCK_TYPE_FOR_INIT) {
+ if (!empty && expr->type != BlockNode::TYPE_VARIABLE_DECLARATION) {
+ _set_error(RTR("The left expression is expected to be a variable declaration."));
+ return ERR_PARSE_ERROR;
+ }
+ }
+ if (p_block->block_type == BlockNode::BLOCK_TYPE_FOR_CONDITION) {
+ if (!empty && expr->get_datatype() != TYPE_BOOL) {
+ _set_error(RTR("The middle expression is expected to be boolean."));
+ return ERR_PARSE_ERROR;
+ }
+ }
+
p_block->statements.push_back(expr);
tk = _get_token();
- if (tk.type != TK_SEMICOLON) {
+ if (p_block->block_type == BlockNode::BLOCK_TYPE_FOR_CONDITION) {
+ if (tk.type == TK_COMMA) {
+ continue;
+ }
+ if (tk.type != TK_SEMICOLON) {
+ _set_expected_error(",", ";");
+ return ERR_PARSE_ERROR;
+ }
+ } else if (p_block->block_type == BlockNode::BLOCK_TYPE_FOR_EXPRESSION) {
+ if (tk.type == TK_COMMA) {
+ continue;
+ }
+ if (tk.type != TK_PARENTHESIS_CLOSE) {
+ _set_expected_error(",", ")");
+ return ERR_PARSE_ERROR;
+ }
+ } else if (tk.type != TK_SEMICOLON) {
_set_expected_error(";");
return ERR_PARSE_ERROR;
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-25 22:46:38 +0000