gas: Generate function call

This is an initial commit that enables function calls. At this point
only functions with no parameters is going to work.

Signed-off-by: Carlos Maniero <carlos@maniero.me>

1 files changed, 27 insertions, 0 deletions

diff --git a/src/ast.c b/src/ast.c
index 47d658d..e9aa677 100644
--- a/src/ast.c
+++ b/src/ast.c
@@ -72,6 +72,7 @@ ast_node_destroy(ast_node_t *node)
     case AST_LITERAL:
     case AST_UNKOWN_NODE:
     case AST_VARIABLE:
+    case AST_FUNCTION_CALL:
       break;
   }
   free(node);
@@ -276,6 +277,20 @@ ast_node_new_variable(ast_identifier_t *identifier, type_t result_type)
 }
 
 ast_node_t *
+ast_node_new_function_call(ast_identifier_t *identifier, type_t result_type)
+{
+  ast_node_t *node = ast_node_new();
+
+  *node = (ast_node_t){
+    .kind = AST_FUNCTION_CALL,
+    .result_type = result_type,
+    .data = { .function_call = { .identifier = identifier } },
+  };
+
+  return node;
+}
+
+ast_node_t *
 ast_node_ns_get_function_node_by_sv(ast_node_t *ns, string_view_t name)
 {
   assert(ns->kind == AST_NAMESPACE);
@@ -296,6 +311,18 @@ ast_node_ns_get_function_node_by_name(ast_node_t *ns, char *function_name)
   return ast_node_ns_get_function_node_by_sv(ns, string_view_from_str(function_name));
 }
 
+bool
+ast_node_is_variable_declaration(ast_node_t *node)
+{
+  return node->kind == AST_VARIABLE_DECLARATION;
+}
+
+bool
+ast_node_is_function_declaration(ast_node_t *node)
+{
+  return node->kind == AST_FUNCTION_DECLARATION;
+}
+
 char *
 ast_type_to_str(type_t type)
 {