jkummerow@chromium.org | 28faa98 | 2012-04-13 09:58:30 +0000 | [diff] [blame] | 1 | // Copyright 2012 the V8 project authors. All rights reserved. |
ager@chromium.org | ddb913d | 2009-01-27 10:01:48 +0000 | [diff] [blame] | 2 | // Redistribution and use in source and binary forms, with or without |
| 3 | // modification, are permitted provided that the following conditions are |
| 4 | // met: |
| 5 | // |
| 6 | // * Redistributions of source code must retain the above copyright |
| 7 | // notice, this list of conditions and the following disclaimer. |
| 8 | // * Redistributions in binary form must reproduce the above |
| 9 | // copyright notice, this list of conditions and the following |
| 10 | // disclaimer in the documentation and/or other materials provided |
| 11 | // with the distribution. |
| 12 | // * Neither the name of Google Inc. nor the names of its |
| 13 | // contributors may be used to endorse or promote products derived |
| 14 | // from this software without specific prior written permission. |
| 15 | // |
| 16 | // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 17 | // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 18 | // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| 19 | // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| 20 | // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 21 | // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| 22 | // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 23 | // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 24 | // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 25 | // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| 26 | // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 27 | |
| 28 | #ifndef V8_APIUTILS_H_ |
| 29 | #define V8_APIUTILS_H_ |
| 30 | |
| 31 | namespace v8 { |
ager@chromium.org | ddb913d | 2009-01-27 10:01:48 +0000 | [diff] [blame] | 32 | class ImplementationUtilities { |
| 33 | public: |
ager@chromium.org | ddb913d | 2009-01-27 10:01:48 +0000 | [diff] [blame] | 34 | static int GetNameCount(ExtensionConfiguration* that) { |
| 35 | return that->name_count_; |
| 36 | } |
| 37 | |
| 38 | static const char** GetNames(ExtensionConfiguration* that) { |
| 39 | return that->names_; |
| 40 | } |
| 41 | |
fschneider@chromium.org | e03fb64 | 2010-11-01 12:34:09 +0000 | [diff] [blame] | 42 | // Packs additional parameters for the NewArguments function. |implicit_args| |
jkummerow@chromium.org | 28faa98 | 2012-04-13 09:58:30 +0000 | [diff] [blame] | 43 | // is a pointer to the last element of 4-elements array controlled by GC. |
fschneider@chromium.org | e03fb64 | 2010-11-01 12:34:09 +0000 | [diff] [blame] | 44 | static void PrepareArgumentsData(internal::Object** implicit_args, |
jkummerow@chromium.org | 28faa98 | 2012-04-13 09:58:30 +0000 | [diff] [blame] | 45 | internal::Isolate* isolate, |
fschneider@chromium.org | e03fb64 | 2010-11-01 12:34:09 +0000 | [diff] [blame] | 46 | internal::Object* data, |
| 47 | internal::JSFunction* callee, |
| 48 | internal::Object* holder) { |
| 49 | implicit_args[v8::Arguments::kDataIndex] = data; |
| 50 | implicit_args[v8::Arguments::kCalleeIndex] = callee; |
| 51 | implicit_args[v8::Arguments::kHolderIndex] = holder; |
jkummerow@chromium.org | 28faa98 | 2012-04-13 09:58:30 +0000 | [diff] [blame] | 52 | implicit_args[v8::Arguments::kIsolateIndex] = |
| 53 | reinterpret_cast<internal::Object*>(isolate); |
fschneider@chromium.org | e03fb64 | 2010-11-01 12:34:09 +0000 | [diff] [blame] | 54 | } |
| 55 | |
| 56 | static v8::Arguments NewArguments(internal::Object** implicit_args, |
| 57 | internal::Object** argv, int argc, |
| 58 | bool is_construct_call) { |
vegorov@chromium.org | 21b5e95 | 2010-11-23 10:24:40 +0000 | [diff] [blame] | 59 | ASSERT(implicit_args[v8::Arguments::kCalleeIndex]->IsJSFunction()); |
| 60 | ASSERT(implicit_args[v8::Arguments::kHolderIndex]->IsHeapObject()); |
jkummerow@chromium.org | 28faa98 | 2012-04-13 09:58:30 +0000 | [diff] [blame] | 61 | // The implicit isolate argument is not tagged and looks like a SMI. |
| 62 | ASSERT(implicit_args[v8::Arguments::kIsolateIndex]->IsSmi()); |
vegorov@chromium.org | 21b5e95 | 2010-11-23 10:24:40 +0000 | [diff] [blame] | 63 | |
fschneider@chromium.org | e03fb64 | 2010-11-01 12:34:09 +0000 | [diff] [blame] | 64 | return v8::Arguments(implicit_args, argv, argc, is_construct_call); |
ager@chromium.org | ddb913d | 2009-01-27 10:01:48 +0000 | [diff] [blame] | 65 | } |
| 66 | |
| 67 | // Introduce an alias for the handle scope data to allow non-friends |
| 68 | // to access the HandleScope data. |
| 69 | typedef v8::HandleScope::Data HandleScopeData; |
| 70 | |
ager@chromium.org | ddb913d | 2009-01-27 10:01:48 +0000 | [diff] [blame] | 71 | #ifdef DEBUG |
ager@chromium.org | 18ad94b | 2009-09-02 08:22:29 +0000 | [diff] [blame] | 72 | static void ZapHandleRange(internal::Object** begin, internal::Object** end); |
ager@chromium.org | ddb913d | 2009-01-27 10:01:48 +0000 | [diff] [blame] | 73 | #endif |
| 74 | }; |
| 75 | |
| 76 | } // namespace v8 |
| 77 | |
| 78 | #endif // V8_APIUTILS_H_ |