Remove default initialization to 0 for variable declarations

This made sense when all variables were of the same size, but now
with arrays we don't initialize them by default. Perhaps we should
find a way to 0-initialize all the memory?

2 files changed, 3 insertions, 5 deletions

diff --git a/src/generator.c b/src/generator.c
index f9aa787..4814f4f 100644
--- a/src/generator.c
+++ b/src/generator.c
@@ -280,11 +280,6 @@ void generate_statement(Node *stmt, FILE *out)
             generate_expr_into_rax(stmt->var_decl.value, out);
             i64 offset = stmt->var_decl.var.offset;
             fprintf(out, "    mov [rbp-%lld], rax\n", offset);
-        } else {
-            // Initialize to 0
-            i64 offset = stmt->var_decl.var.offset;
-            // TODO: Use correct size for the type
-            fprintf(out, "    mov qword [rbp-%lld], 0\n", offset);
         }
     } else if (stmt->type == AST_IF) {
         assert(stmt->conditional.cond);
diff --git a/src/parser.c b/src/parser.c
index 479767d..435191d 100644
--- a/src/parser.c
+++ b/src/parser.c
@@ -258,6 +258,9 @@ Node *parse_var_declaration(Lexer *lexer)
     if (token.type == TOKEN_ASSIGN) {
         if (is_global)
             die_location(token.loc, "Cannot initialize global variable `%s` outside function", node->var_decl.var.name);
+        if (node->var_decl.var.type->type == TYPE_ARRAY)
+            die_location(token.loc, "Cannot initialize array variable `%s` here.", node->var_decl.var.name);
+
         node->var_decl.value = parse_expression(lexer);
 
         if (!type_equals(node->var_decl.var.type, node->var_decl.value->expr_type)) {