one step toward rehashing

1 files changed, 11 insertions, 8 deletions

diff --git a/parser.c b/parser.c
index 8166ea5..d7dc3fb 100644
--- a/parser.c
+++ b/parser.c
@@ -90,21 +90,24 @@ static void parse_var_ref(struct var_ref_node* p_node) {
     p_node->ident = tok.data.ident;
 }
 
-static void parse_expr_assign(struct expr_node* p_node) {
-    peek_or_panic();
-    if (tok.type != TK_ASSIGN) return;
-
-    switch (p_node->type) {
+static void expr_to_lval(struct lval_node* l_node, struct expr_node* e_node) {
+    switch (e_node->type) {
         case EXPR_VAR_REF:
-            p_node->as._assign.lval = (struct lval_node) {
+            *l_node = (struct lval_node) {
                 .type = LVAL_VAR_REF,
-                .as._var_ref = p_node->as._var_ref,
+                .as._var_ref = e_node->as._var_ref,
             };
-            break;
+            return;
         default:
             PARSER_PANIC("expression is not assignable");
     }
+}
+
+static void parse_expr_assign(struct expr_node* p_node) {
+    peek_or_panic();
+    if (tok.type != TK_ASSIGN) return;
 
+    expr_to_lval(&p_node->as._assign.lval, p_node);
     p_node->type = EXPR_ASSIGN;
     p_node->as._assign.rval = protected_alloc(sizeof(struct expr_node));