From: Wolfgang (Blub) Bumiller <blub@speed.at>
Date: Sun, 25 Nov 2012 22:51:39 +0000 (+0100)
Subject: ast_breakcont_codegen: error when a target is missing instead of segfaulting trying... 
X-Git-Tag: 0.1.9~211
X-Git-Url: https://git.xonotic.org/?p=xonotic%2Fgmqcc.git;a=commitdiff_plain;h=bf244fc9602bb93bf47027830ec2162b8dd4afe8

ast_breakcont_codegen: error when a target is missing instead of segfaulting trying to access it anyway
---

diff --git a/ast.c b/ast.c
index bd67638..6f90b18 100644
--- a/ast.c
+++ b/ast.c
@@ -2531,6 +2531,11 @@ bool ast_breakcont_codegen(ast_breakcont *self, ast_function *func, bool lvalue,
     else
         target = func->breakblock;
 
+    if (!target) {
+        asterror(ast_ctx(self), "%s is lacking a target block", (self->is_continue ? "continue" : "break"));
+        return false;
+    }
+
     if (!ir_block_create_jump(func->curblock, target))
         return false;
     return true;