js/src/shell/WasmTesting.cpp

   1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
   2  * vim: set ts=8 sts=2 et sw=2 tw=80:
   3  *
   4  * Copyright 2015 Mozilla Foundation
   5  *
   6  * Licensed under the Apache License, Version 2.0 (the "License");
   7  * you may not use this file except in compliance with the License.
   8  * You may obtain a copy of the License at
   9  *
  10  *     http://www.apache.org/licenses/LICENSE-2.0
  11  *
  12  * Unless required by applicable law or agreed to in writing, software
  13  * distributed under the License is distributed on an "AS IS" BASIS,
  14  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  15  * See the License for the specific language governing permissions and
  16  * limitations under the License.
  17  */
  18
  19 #include "shell/WasmTesting.h"
  20
  21 #include <inttypes.h>
  22 #include <stdbool.h>
  23 #include <stddef.h>
  24
  25 #include "js/Printf.h"
  26 #include "wasm/WasmTypeDecls.h"
  27
  28 using namespace js;
  29 using namespace js::wasm;
  30
  31 extern "C" {
  32 bool wasm_text_to_binary(const char16_t* text, size_t text_len,
  33                          uint8_t** out_bytes, size_t* out_bytes_len,
  34                          uint8_t** out_error, size_t* out_error_len);
  35 }  // extern "C"
  36
  37 bool wasm::TextToBinary(const char16_t* text, size_t textLen, Bytes* bytes,
  38                         UniqueChars* error) {
  39   uint8_t* outBytes = nullptr;
  40   size_t outBytesLength = 0;
  41
  42   uint8_t* outError = nullptr;
  43   size_t outErrorLength = 0;
  44
  45   bool result = wasm_text_to_binary(text, textLen, &outBytes, &outBytesLength,
  46                                     &outError, &outErrorLength);
  47
  48   if (result) {
  49     if (outBytesLength == 0) {
  50       *error = JS_smprintf("missing bytes");
  51       return false;
  52     }
  53
  54     MOZ_ASSERT(outBytes);
  55     MOZ_ASSERT(outBytesLength > 0);
  56     bytes->replaceRawBuffer(outBytes, outBytesLength);
  57     return true;
  58   }
  59
  60   MOZ_ASSERT(outError);
  61   MOZ_ASSERT(outErrorLength > 0);
  62   *error = UniqueChars{(char*)outError};
  63   return false;
  64 }