dart-sdk/runtime/vm/exceptions_test.cc

125 lines
4.3 KiB
C++

// Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.
#include "include/dart_api.h"
#include "platform/assert.h"
#include "vm/dart_api_impl.h"
#include "vm/unit_test.h"
namespace dart {
#define FUNCTION_NAME(name) UnhandledExcp_##name
#define REGISTER_FUNCTION(name, count) {"" #name, FUNCTION_NAME(name), count},
void FUNCTION_NAME(Unhandled_equals)(Dart_NativeArguments args) {
NativeArguments* arguments = reinterpret_cast<NativeArguments*>(args);
const Instance& expected = Instance::CheckedHandle(arguments->NativeArgAt(0));
const Instance& actual = Instance::CheckedHandle(arguments->NativeArgAt(1));
if (!expected.CanonicalizeEquals(actual)) {
OS::Print("expected: '%s' actual: '%s'\n", expected.ToCString(),
actual.ToCString());
FATAL("Unhandled_equals fails.\n");
}
}
void FUNCTION_NAME(Unhandled_invoke)(Dart_NativeArguments args) {
// Invoke the specified entry point.
Dart_Handle cls = Dart_GetClass(TestCase::lib(), NewString("Second"));
Dart_Handle result = Dart_Invoke(cls, NewString("method2"), 0, NULL);
ASSERT(Dart_IsError(result));
ASSERT(Dart_ErrorHasException(result));
return;
}
void FUNCTION_NAME(Unhandled_invoke2)(Dart_NativeArguments args) {
// Invoke the specified entry point.
Dart_Handle cls = Dart_GetClass(TestCase::lib(), NewString("Second"));
Dart_Handle result = Dart_Invoke(cls, NewString("method2"), 0, NULL);
ASSERT(Dart_IsError(result));
ASSERT(Dart_ErrorHasException(result));
Dart_Handle exception = Dart_ErrorGetException(result);
ASSERT(!Dart_IsError(exception));
Dart_ThrowException(exception);
UNREACHABLE();
return;
}
// List all native functions implemented in the vm or core boot strap dart
// libraries so that we can resolve the native function to it's entry
// point.
#define UNHANDLED_NATIVE_LIST(V) \
V(Unhandled_equals, 2) \
V(Unhandled_invoke, 0) \
V(Unhandled_invoke2, 0)
static struct NativeEntries {
const char* name_;
Dart_NativeFunction function_;
int argument_count_;
} BuiltinEntries[] = {UNHANDLED_NATIVE_LIST(REGISTER_FUNCTION)};
static Dart_NativeFunction native_lookup(Dart_Handle name,
int argument_count,
bool* auto_setup_scope) {
ASSERT(auto_setup_scope != NULL);
*auto_setup_scope = true;
const Object& obj = Object::Handle(Api::UnwrapHandle(name));
ASSERT(obj.IsString());
const char* function_name = obj.ToCString();
ASSERT(function_name != NULL);
int num_entries = sizeof(BuiltinEntries) / sizeof(struct NativeEntries);
for (int i = 0; i < num_entries; i++) {
struct NativeEntries* entry = &(BuiltinEntries[i]);
if (!strcmp(function_name, entry->name_) &&
(argument_count == entry->argument_count_)) {
return reinterpret_cast<Dart_NativeFunction>(entry->function_);
}
}
return NULL;
}
// Unit test case to verify unhandled exceptions.
TEST_CASE(UnhandledExceptions) {
const char* kScriptChars =
"class UnhandledExceptions {\n"
" static equals(var obj1, var obj2) native \"Unhandled_equals\";"
" static invoke() native \"Unhandled_invoke\";\n"
" static invoke2() native \"Unhandled_invoke2\";\n"
"}\n"
"class Second {\n"
" Second() { }\n"
" static int method1(int param) {\n"
" UnhandledExceptions.invoke();\n"
" return 2;\n"
" }\n"
" static int method2() {\n"
" throw new Second();\n"
" }\n"
" static int method3(int param) {\n"
" try {\n"
" UnhandledExceptions.invoke2();\n"
" } on Second catch (e) {\n"
" return 3;\n"
" }\n"
" return 2;\n"
" }\n"
"}\n"
"testMain() {\n"
" UnhandledExceptions.equals(2, Second.method1(1));\n"
" UnhandledExceptions.equals(3, Second.method3(1));\n"
"}";
Dart_Handle lib = TestCase::LoadTestScript(
kScriptChars, reinterpret_cast<Dart_NativeEntryResolver>(native_lookup));
EXPECT_VALID(Dart_Invoke(lib, NewString("testMain"), 0, NULL));
}
} // namespace dart