feat: trait 接口系统 — trait Show { fn method } + extend Trait Struct { }

2026-06-06 16:41:21 +08:00
parent 9169796b77
commit b3b3d285f9
9 changed files with 126 additions and 12 deletions
@@ -431,8 +431,12 @@ static LLVMValueRef codegen_expr(CgCtx* ctx, AstNode* node) {
    case AST_METHOD_CALL: {
        const char* struct_name = node->as.method_call.receiver->type.struct_name;
        char mangled[256];
-        snprintf(mangled, sizeof(mangled), "%s$%s", struct_name,
-                 node->as.method_call.method_name);
+        // 若 method_name 已含 $（trait 方法，sema 已设置全限定名），直接用
+        if (strchr(node->as.method_call.method_name, '$'))
+            snprintf(mangled, sizeof(mangled), "%s", node->as.method_call.method_name);
+        else
+            snprintf(mangled, sizeof(mangled), "%s$%s", struct_name,
+                     node->as.method_call.method_name);
        LLVMValueRef fn = find_fn(ctx, mangled);
        if (!fn) return NULL;
        // 参数列表: [receiver, 用户参数...]