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1 // Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file |
2 // for details. All rights reserved. Use of this source code is governed by a | 2 // for details. All rights reserved. Use of this source code is governed by a |
3 // BSD-style license that can be found in the LICENSE file. | 3 // BSD-style license that can be found in the LICENSE file. |
4 | 4 |
5 #include "include/dart_api.h" | 5 #include "include/dart_api.h" |
6 #include "include/dart_mirrors_api.h" | 6 #include "include/dart_mirrors_api.h" |
7 #include "include/dart_native_api.h" | 7 #include "include/dart_native_api.h" |
8 | 8 |
9 #include "platform/assert.h" | 9 #include "platform/assert.h" |
10 #include "lib/stacktrace.h" | 10 #include "lib/stacktrace.h" |
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2550 if (size == NULL) { | 2550 if (size == NULL) { |
2551 RETURN_NULL_ERROR(size); | 2551 RETURN_NULL_ERROR(size); |
2552 } | 2552 } |
2553 *size = (str_obj.Length() * str_obj.CharSize()); | 2553 *size = (str_obj.Length() * str_obj.CharSize()); |
2554 return Api::Success(); | 2554 return Api::Success(); |
2555 } | 2555 } |
2556 | 2556 |
2557 | 2557 |
2558 DART_EXPORT Dart_Handle Dart_MakeExternalString(Dart_Handle str, | 2558 DART_EXPORT Dart_Handle Dart_MakeExternalString(Dart_Handle str, |
2559 void* array, | 2559 void* array, |
2560 intptr_t length, | 2560 intptr_t external_size, |
2561 void* peer, | 2561 void* peer, |
2562 Dart_PeerFinalizer cback) { | 2562 Dart_PeerFinalizer cback) { |
2563 DARTSCOPE(Thread::Current()); | 2563 DARTSCOPE(Thread::Current()); |
2564 if (!FLAG_support_externalizable_strings) { | 2564 if (!FLAG_support_externalizable_strings) { |
2565 return Api::NewError("Dart_MakeExternalString with " | 2565 return Api::NewError("Dart_MakeExternalString with " |
2566 "--support_externalizable_strings=false"); | 2566 "--support_externalizable_strings=false"); |
2567 } | 2567 } |
2568 const String& str_obj = Api::UnwrapStringHandle(Z, str); | 2568 const String& str_obj = Api::UnwrapStringHandle(Z, str); |
2569 if (str_obj.IsExternal()) { | 2569 if (str_obj.IsExternal()) { |
2570 return str; // String is already an external string. | 2570 return str; // String is already an external string. |
2571 } | 2571 } |
2572 if (str_obj.IsNull()) { | 2572 if (str_obj.IsNull()) { |
2573 RETURN_TYPE_ERROR(Z, str, String); | 2573 RETURN_TYPE_ERROR(Z, str, String); |
2574 } | 2574 } |
2575 if (array == NULL) { | 2575 if (array == NULL) { |
2576 RETURN_NULL_ERROR(array); | 2576 RETURN_NULL_ERROR(array); |
2577 } | 2577 } |
2578 intptr_t str_size = (str_obj.Length() * str_obj.CharSize()); | 2578 intptr_t str_size = (str_obj.Length() * str_obj.CharSize()); |
2579 if ((length < str_size) || (length > String::kMaxElements)) { | 2579 if ((external_size < str_size) || (external_size > String::kMaxElements)) { |
2580 return Api::NewError("Dart_MakeExternalString " | 2580 return Api::NewError("Dart_MakeExternalString " |
2581 "expects argument length to be in the range" | 2581 "expects argument external_size to be in the range" |
2582 "[%" Pd "..%" Pd "].", | 2582 "[%" Pd "..%" Pd "].", |
2583 str_size, String::kMaxElements); | 2583 str_size, String::kMaxElements); |
2584 } | 2584 } |
2585 if (str_obj.InVMHeap()) { | 2585 if (str_obj.InVMHeap()) { |
2586 // Since the string object is read only we do not externalize | 2586 // Since the string object is read only we do not externalize |
2587 // the string but instead copy the contents of the string into the | 2587 // the string but instead copy the contents of the string into the |
2588 // specified buffer add the specified peer/cback as a Peer object | 2588 // specified buffer add the specified peer/cback as a Peer object |
2589 // to this string. The Api::StringGetPeerHelper function picks up | 2589 // to this string. The Api::StringGetPeerHelper function picks up |
2590 // the peer from the Peer table. | 2590 // the peer from the Peer table. |
2591 intptr_t copy_len = str_obj.Length(); | 2591 intptr_t copy_len = str_obj.Length(); |
2592 if (str_obj.IsOneByteString()) { | 2592 if (str_obj.IsOneByteString()) { |
2593 ASSERT(length >= copy_len); | 2593 ASSERT(external_size >= copy_len); |
2594 uint8_t* latin1_array = reinterpret_cast<uint8_t*>(array); | 2594 uint8_t* latin1_array = reinterpret_cast<uint8_t*>(array); |
2595 for (intptr_t i = 0; i < copy_len; i++) { | 2595 for (intptr_t i = 0; i < copy_len; i++) { |
2596 latin1_array[i] = static_cast<uint8_t>(str_obj.CharAt(i)); | 2596 latin1_array[i] = static_cast<uint8_t>(str_obj.CharAt(i)); |
2597 } | 2597 } |
2598 OneByteString::SetPeer(str_obj, peer, cback); | 2598 OneByteString::SetPeer(str_obj, external_size, peer, cback); |
2599 } else { | 2599 } else { |
2600 ASSERT(str_obj.IsTwoByteString()); | 2600 ASSERT(str_obj.IsTwoByteString()); |
2601 ASSERT(length >= (copy_len * str_obj.CharSize())); | 2601 ASSERT(external_size >= (copy_len * str_obj.CharSize())); |
2602 uint16_t* utf16_array = reinterpret_cast<uint16_t*>(array); | 2602 uint16_t* utf16_array = reinterpret_cast<uint16_t*>(array); |
2603 for (intptr_t i = 0; i < copy_len; i++) { | 2603 for (intptr_t i = 0; i < copy_len; i++) { |
2604 utf16_array[i] = str_obj.CharAt(i); | 2604 utf16_array[i] = str_obj.CharAt(i); |
2605 } | 2605 } |
2606 TwoByteString::SetPeer(str_obj, peer, cback); | 2606 TwoByteString::SetPeer(str_obj, external_size, peer, cback); |
2607 } | 2607 } |
2608 return str; | 2608 return str; |
2609 } | 2609 } |
2610 return Api::NewHandle(T, str_obj.MakeExternal(array, length, peer, cback)); | 2610 return Api::NewHandle(T, str_obj.MakeExternal(array, external_size, |
| 2611 peer, cback)); |
2611 } | 2612 } |
2612 | 2613 |
2613 | 2614 |
2614 DART_EXPORT Dart_Handle Dart_StringGetProperties(Dart_Handle object, | 2615 DART_EXPORT Dart_Handle Dart_StringGetProperties(Dart_Handle object, |
2615 intptr_t* char_size, | 2616 intptr_t* char_size, |
2616 intptr_t* str_len, | 2617 intptr_t* str_len, |
2617 void** peer) { | 2618 void** peer) { |
2618 Thread* thread = Thread::Current(); | 2619 Thread* thread = Thread::Current(); |
2619 CHECK_ISOLATE(thread->isolate()); | 2620 CHECK_ISOLATE(thread->isolate()); |
2620 ReusableObjectHandleScope reused_obj_handle(thread); | 2621 ReusableObjectHandleScope reused_obj_handle(thread); |
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6583 | 6584 |
6584 DART_EXPORT bool Dart_IsPrecompiledRuntime() { | 6585 DART_EXPORT bool Dart_IsPrecompiledRuntime() { |
6585 #if defined(DART_PRECOMPILED_RUNTIME) | 6586 #if defined(DART_PRECOMPILED_RUNTIME) |
6586 return true; | 6587 return true; |
6587 #else | 6588 #else |
6588 return false; | 6589 return false; |
6589 #endif | 6590 #endif |
6590 } | 6591 } |
6591 | 6592 |
6592 } // namespace dart | 6593 } // namespace dart |
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