Commit 3ef447fa20

Andrew Kelley <superjoe30@gmail.com>
2017-01-08 16:30:05
don't try to eval extern functions at compile time
master
1 parent 6b36aef
Changed files (2)
src
ir.cpp
test
run_tests.cpp
src/ir.cpp
@@ -7466,7 +7466,7 @@ static TypeTableEntry *ir_analyze_fn_call(IrAnalyze *ira, IrInstructionCall *cal
 
     if (inline_fn_call) {
         // No special handling is needed for compile time evaluation of generic functions.
-        if (!fn_entry) {
+        if (!fn_entry || fn_entry->type_entry->data.fn.fn_type_id.is_extern) {
             ir_add_error(ira, fn_ref, buf_sprintf("unable to evaluate constant expression"));
             return ira->codegen->builtin_types.entry_invalid;
         }
test/run_tests.cpp
@@ -1019,7 +1019,7 @@ fn f(x: u32) {
     add_compile_fail_case("global variable initializer must be constant expression", R"SOURCE(
 extern fn foo() -> i32;
 const x = foo();
-    )SOURCE", 1, ".tmp_source.zig:3:11: error: global variable initializer requires constant expression");
+    )SOURCE", 1, ".tmp_source.zig:3:11: error: unable to evaluate constant expression");
 
     add_compile_fail_case("array concatenation with wrong type", R"SOURCE(
 fn f(s: []u8) -> []u8 {