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, 16 insertions, 0 deletions

diff --git a/src/ast.h b/src/ast.h
index 7d2d2f1..315de1e 100644
--- a/src/ast.h
+++ b/src/ast.h
@@ -54,6 +54,11 @@ typedef struct ast_variable_t
   ast_identifier_t *identifier;
 } ast_variable_t;
 
+typedef struct ast_function_call_t
+{
+  ast_identifier_t *identifier;
+} ast_function_call_t;
+
 typedef struct ast_function_declaration_t
 {
   ast_identifier_t identifier;
@@ -128,6 +133,7 @@ typedef enum
   AST_BINARY_OPERATION,
   AST_BLOCK,
   AST_FUNCTION_DECLARATION,
+  AST_FUNCTION_CALL,
   AST_LITERAL,
   AST_RETURN_STMT,
   AST_IF_STMT,
@@ -142,6 +148,7 @@ typedef union
   ast_namespace_t ns;
   ast_binary_operation_t binary_operation;
   ast_function_declaration_t function;
+  ast_function_call_t function_call;
   ast_literal_t literal;
   ast_block_t block;
   ast_if_stmt_t if_stmt;
@@ -183,6 +190,9 @@ ast_node_t *
 ast_node_new_function_declaration(string_view_t function_name, type_t return_type, ast_node_t *body);
 
 ast_node_t *
+ast_node_new_function_call(ast_identifier_t *identifier, type_t result_type);
+
+ast_node_t *
 ast_node_new_return_stmt(ast_node_t *argument);
 
 ast_node_t *
@@ -212,4 +222,10 @@ ast_node_ns_get_function_node_by_sv(ast_node_t *ns, string_view_t name);
 ast_node_t *
 ast_node_ns_get_function_node_by_name(ast_node_t *ns, char *function_name);
 
+bool
+ast_node_is_variable_declaration(ast_node_t *node);
+
+bool
+ast_node_is_function_declaration(ast_node_t *node);
+
 #endif /* AST_H */