Update ast interface

v0/parser.c

@@ -22,7 +22,9 @@ Module* parser_parse(TokenStream* ts) {
         fprintf(stderr, "Out of memory\n");
         exit(1);
     }
-    module->name = t;
+    module->name = (const char*)malloc(t.text.length + 1);
+    memcpy((void*)module->name, t.text.data, t.text.length);
+    ((char*)module->name)[t.text.length] = '\0';
     module->imports = NULL;
     module->import_count = 0;
     module->aliases = NULL;
@@ -60,8 +62,12 @@ Module* parser_parse(TokenStream* ts) {
 			parser_free(module);
 			return NULL;
 		}
+        
+        char* name = (char*)malloc(t.text.length + 1);
+        memcpy(name, t.text.data, t.text.length);
+        name[t.text.length] = '\0';
 
-		module->imports[module->import_count] = (ImportDeclaration){ .module_name = t, .is_public = is_public };
+		module->imports[module->import_count] = (ImportDeclaration){ .module_name = name, .is_public = is_public };
 		module->import_count++;
 
 		t = tokenstream_next(ts);
@@ -72,8 +78,6 @@ Module* parser_parse(TokenStream* ts) {
 		}
 	}
 
-    // Now t holds the first non-import token. If it's not TOKEN_ALIAS, return.
-    // If it is, process it.
     while (t.token == TOKEN_ALIAS) {
         AliasDeclaration* new_aliases = realloc(module->aliases, (module->alias_count + 1) * sizeof(AliasDeclaration));
         if (!new_aliases) {
@@ -88,8 +92,11 @@ Module* parser_parse(TokenStream* ts) {
             parser_free(module);
             return NULL;
         }
+        char* name = (char*)malloc(t.text.length + 1);
+        memcpy(name, t.text.data, t.text.length);
+        name[t.text.length] = '\0';
         AliasDeclaration alias;
-        alias.name = t;
+        alias.name = name;
 
         t = tokenstream_next(ts);
         if (t.token != TOKEN_ASSIGN) {
@@ -124,10 +131,17 @@ Module* parser_parse(TokenStream* ts) {
 void parser_free(Module* module) {
 	if (module == NULL) return;
     if (module->imports != NULL) {
+        for(size_t i = 0; i < module->import_count; i++) {
+            free((void*)module->imports[i].module_name);
+        }
         free(module->imports);
     }
     if (module->aliases != NULL) {
+        for(size_t i = 0; i < module->alias_count; i++) {
+            free((void*)module->aliases[i].name);
+        }
         free(module->aliases);
     }
+    free((void*)module->name);
 	free(module);
 }