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-rw-r--r--modules/gdscript/gd_parser.cpp25
1 files changed, 25 insertions, 0 deletions
diff --git a/modules/gdscript/gd_parser.cpp b/modules/gdscript/gd_parser.cpp
index bd0704fff9..c783fac429 100644
--- a/modules/gdscript/gd_parser.cpp
+++ b/modules/gdscript/gd_parser.cpp
@@ -1762,6 +1762,24 @@ void GDParser::_parse_block(BlockNode *p_block,bool p_static) {
}
StringName n = tokenizer->get_token_identifier();
tokenizer->advance();
+ if (current_function){
+ for (int i=0;i<current_function->arguments.size();i++){
+ if (n == current_function->arguments[i]){
+ _set_error("Variable '"+String(n)+"' already defined in the scope (at line: "+itos(current_function->line)+").");
+ return;
+ }
+ }
+ }
+ BlockNode *check_block = p_block;
+ while (check_block){
+ for (int i=0;i<check_block->variables.size();i++){
+ if (n == check_block->variables[i]){
+ _set_error("Variable '"+String(n)+"' already defined in the scope (at line: "+itos(check_block->variable_lines[i])+").");
+ return;
+ }
+ }
+ check_block = check_block->parent_block;
+ }
p_block->variables.push_back(n); //line?
p_block->variable_lines.push_back(tokenizer->get_token_line());
@@ -2079,7 +2097,14 @@ void GDParser::_parse_block(BlockNode *p_block,bool p_static) {
}
current_block=cf_for->body;
+
+ // this is for checking variable for redefining
+ // inside this _parse_block
+ cf_for->body->variables.push_back(id->name);
+ cf_for->body->variable_lines.push_back(id->line);
_parse_block(cf_for->body,p_static);
+ cf_for->body->variables.remove(0);
+ cf_for->body->variable_lines.remove(0);
current_block=p_block;
if (error_set)