1// Copyright 2015 the V8 project authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5#include "src/wasm/wasm-result.h"
6
7#include "src/factory.h"
8#include "src/heap/heap.h"
9#include "src/isolate.h"
10#include "src/objects-inl.h"  // TODO(mstarzinger): Temporary cycle breaker!
11#include "src/objects.h"
12
13#include "src/base/platform/platform.h"
14
15namespace v8 {
16namespace internal {
17namespace wasm {
18
19std::ostream& operator<<(std::ostream& os, const ErrorCode& error_code) {
20  switch (error_code) {
21    case kSuccess:
22      os << "Success";
23      break;
24    default:  // TODO(titzer): render error codes
25      os << "Error";
26      break;
27  }
28  return os;
29}
30
31
32void ErrorThrower::Error(const char* format, ...) {
33  if (error_) return;  // only report the first error.
34  error_ = true;
35  char buffer[256];
36
37  va_list arguments;
38  va_start(arguments, format);
39  base::OS::VSNPrintF(buffer, 255, format, arguments);
40  va_end(arguments);
41
42  std::ostringstream str;
43  if (context_ != nullptr) {
44    str << context_ << ": ";
45  }
46  str << buffer;
47
48  isolate_->ScheduleThrow(
49      *isolate_->factory()->NewStringFromAsciiChecked(str.str().c_str()));
50}
51}  // namespace wasm
52}  // namespace internal
53}  // namespace v8
54