zig

commit 4e28d7a5f7d6346acc42a7524dd77fa5f9322029 (tree)
parent 8e3370367bbbcae43670380cb4ca841a9e5ada33
Author: daurnimator <quae@daurnimator.com>
Date:   Sun, 17 Nov 2019 02:46:44 +1100

fix bug on empty error union

Diffstat:
M
src/ir.cpp
 | 
1
-
M
test/stage1/behavior/error.zig
 | 
4
++++

2 files changed, 4 insertions(+), 1 deletion(-)
diff --git a/src/ir.cpp b/src/ir.cpp
@@ -8128,7 +8128,6 @@ static ZigType *get_error_set_union(CodeGen *g, ErrorTableEntry **errors, ZigTyp
         }
     }
     assert(index == count);
-    assert(count != 0);
 
     if (type_name == nullptr) {
         buf_appendf(&err_set_type->name, "}");
diff --git a/test/stage1/behavior/error.zig b/test/stage1/behavior/error.zig
@@ -160,6 +160,10 @@ fn testErrToIntWithOnePossibleValue(
     }
 }
 
+test "empty error union" {
+    const x = error{} || error{};
+}
+
 test "error union peer type resolution" {
     testErrorUnionPeerTypeResolution(1);
 }