- implemented -Winit-self

[cparser] / parser.c

diff --git a/parser.c b/parser.c
index 380d207..5f875be 100644 (file)
--- a/parser.c
+++ b/parser.c
@@ -114,6 +114,7 @@ static scope_t            *global_scope      = NULL;
 static scope_t            *scope             = NULL;
 static declaration_t      *last_declaration  = NULL;
 static declaration_t      *current_function  = NULL;
+static declaration_t      *current_init_decl = NULL;
 static switch_statement_t *current_switch    = NULL;
 static statement_t        *current_loop      = NULL;
 static statement_t        *current_parent    = NULL;
@@ -4436,9 +4437,10 @@ static void parse_init_declarator_rest(declaration_t *declaration)
        parse_initializer_env_t env;
        env.type             = orig_type;
        env.must_be_constant = must_be_constant;
-       env.declaration      = declaration;
+       env.declaration      = current_init_decl = declaration;
 
        initializer_t *initializer = parse_initializer(&env);
+       current_init_decl = NULL;
 
        if (env.type != orig_type) {
                orig_type         = env.type;
@@ -5946,6 +5948,12 @@ static expression_t *parse_reference(void)
                                declaration->symbol, &declaration->source_position);
                }
        }
+       if (warning.init_self && declaration == current_init_decl) {
+               current_init_decl = NULL;
+               warningf(&source_position,
+                       "variable '%#T' is initialized by itself",
+                       declaration->type, declaration->symbol);
+       }
 
        return expression;
 }