add compile error for slice of undefined slice

closes #1293
2018-09-22 10:04:47 -04:00
parent 2e27407161
commit 5c15c5fc48
2 changed files with 15 additions and 0 deletions
--- a/test/compile_errors.zig
+++ b/test/compile_errors.zig
@@ -1,6 +1,16 @@
 const tests = @import("tests.zig");

 pub fn addCases(cases: *tests.CompileErrorContext) void {
+    cases.add(
+        "comptime slice of an undefined slice",
+        \\comptime {
+        \\    var a: []u8 = undefined;
+        \\    var b = a[0..10];
+        \\}
+    ,
+        ".tmp_source.zig:3:14: error: slice of undefined",
+    );
+
    cases.add(
        "implicit cast const array to mutable slice",
        \\export fn entry() void {