parser: Registry identifiers on scope

We are parsing variables/functions and checking if they are defined on
scope. Otherwise we fail the parsing with a nice message.

Signed-off-by: Johnny Richard <johnny@johnnyrichard.com>
Co-authored-by: Carlos Maniero <carlosmaniero@gmail.com>

1 files changed, 10 insertions, 1 deletions

diff --git a/src/ast.h b/src/ast.h
index e25f1bb..4fd1d1d 100644
--- a/src/ast.h
+++ b/src/ast.h
@@ -37,6 +37,11 @@ typedef struct ast_identifier_t
   string_view_t name;
 } ast_identifier_t;
 
+typedef struct ast_variable_t
+{
+  ast_identifier_t *identifier;
+} ast_variable_t;
+
 typedef struct ast_function_declaration_t
 {
   ast_identifier_t identifier;
@@ -91,6 +96,7 @@ typedef enum
   AST_RETURN_STMT,
   AST_UNKOWN_NODE,
   AST_VARIABLE_DECLARATION,
+  AST_VARIABLE
 } ast_node_kind_t;
 
 typedef union
@@ -99,8 +105,9 @@ typedef union
   ast_function_declaration_t function;
   ast_literal_t literal;
   ast_return_stmt_t return_stmt;
-  ast_variable_declaration_t variable;
+  ast_variable_declaration_t variable; // FIXME: Rename to variable_declaration
   ast_identifier_t identifier;
+  ast_variable_t variable_ex; // FIXME: Rename to variable
 } ast_node_data_t;
 
 typedef struct ast_node_t
@@ -127,5 +134,7 @@ ast_node_init_variable_declaration(ast_node_t *node, string_view_t variable_name
 // FIXME: use the naming convention
 void
 ast_literal_integer_create(ast_node_t *node, uint32_t number);
+void
+ast_node_init_variable(ast_node_t *node, ast_identifier_t *identifier);
 
 #endif /* AST_H */