parser: Parse uninitialized variable declarations

Signed-off-by: Quinn Stephens <quinn@osmora.org>

1 files changed, 17 insertions, 4 deletions

diff --git a/src/parser/parser.c b/src/parser/parser.c
index 4f8543c..ccdc037 100644
--- a/src/parser/parser.c
+++ b/src/parser/parser.c
@@ -79,6 +79,20 @@ parse_func_decl(struct parser *ctx, struct ast_node *func)
 }
 
 static bool
+parse_var_decl(struct parser *ctx, struct ast_node *var)
+{
+    var->kind = NOK_VARIABLE;
+
+    /*
+     * TODO: Parse initial value.
+     */
+
+    hashmap_add(ctx->syms, &var->hashmap_entry);
+    parser_advance(ctx);
+    return true;
+}
+
+static bool
 parse_decl(struct parser *ctx)
 {
     struct type *type;
@@ -118,12 +132,11 @@ parse_decl(struct parser *ctx)
     parser_advance(ctx);
     if (ctx->tok.kind == TOK_LPAREN) {
         return parse_func_decl(ctx, node);
+    } else if (ctx->tok.kind == TOK_SEMICOLON) {
+        return parse_var_decl(ctx, node);
     }
 
-    /*
-     * TODO: Parse variable declarations.
-     */
-    tok_error(&ctx->tok, "expected \"(\" after identifier\n");
+    tok_error(&ctx->tok, "expected \"(\" or \";\" after identifier\n");
     free(node);
     return false;
 }