OLD | NEW |
1 // Copyright 2007-2009 the V8 project authors. All rights reserved. | 1 // Copyright 2007-2009 the V8 project authors. All rights reserved. |
2 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
4 // met: | 4 // met: |
5 // | 5 // |
6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
(...skipping 7011 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
7022 i::Vector<const i::uc16> data_; | 7022 i::Vector<const i::uc16> data_; |
7023 }; | 7023 }; |
7024 | 7024 |
7025 | 7025 |
7026 static void MorphAString(i::String* string, | 7026 static void MorphAString(i::String* string, |
7027 AsciiVectorResource* ascii_resource, | 7027 AsciiVectorResource* ascii_resource, |
7028 UC16VectorResource* uc16_resource) { | 7028 UC16VectorResource* uc16_resource) { |
7029 CHECK(i::StringShape(string).IsExternal()); | 7029 CHECK(i::StringShape(string).IsExternal()); |
7030 if (string->IsAsciiRepresentation()) { | 7030 if (string->IsAsciiRepresentation()) { |
7031 // Check old map is not symbol or long. | 7031 // Check old map is not symbol or long. |
7032 CHECK(string->map() == i::Heap::short_external_ascii_string_map() || | 7032 CHECK(string->map() == i::Heap::external_ascii_string_map()); |
7033 string->map() == i::Heap::medium_external_ascii_string_map()); | |
7034 // Morph external string to be TwoByte string. | 7033 // Morph external string to be TwoByte string. |
7035 if (string->length() <= i::String::kMaxShortSize) { | 7034 string->set_map(i::Heap::external_string_map()); |
7036 string->set_map(i::Heap::short_external_string_map()); | |
7037 } else { | |
7038 string->set_map(i::Heap::medium_external_string_map()); | |
7039 } | |
7040 i::ExternalTwoByteString* morphed = | 7035 i::ExternalTwoByteString* morphed = |
7041 i::ExternalTwoByteString::cast(string); | 7036 i::ExternalTwoByteString::cast(string); |
7042 morphed->set_resource(uc16_resource); | 7037 morphed->set_resource(uc16_resource); |
7043 } else { | 7038 } else { |
7044 // Check old map is not symbol or long. | 7039 // Check old map is not symbol or long. |
7045 CHECK(string->map() == i::Heap::short_external_string_map() || | 7040 CHECK(string->map() == i::Heap::external_string_map()); |
7046 string->map() == i::Heap::medium_external_string_map()); | |
7047 // Morph external string to be ASCII string. | 7041 // Morph external string to be ASCII string. |
7048 if (string->length() <= i::String::kMaxShortSize) { | 7042 string->set_map(i::Heap::external_ascii_string_map()); |
7049 string->set_map(i::Heap::short_external_ascii_string_map()); | |
7050 } else { | |
7051 string->set_map(i::Heap::medium_external_ascii_string_map()); | |
7052 } | |
7053 i::ExternalAsciiString* morphed = | 7043 i::ExternalAsciiString* morphed = |
7054 i::ExternalAsciiString::cast(string); | 7044 i::ExternalAsciiString::cast(string); |
7055 morphed->set_resource(ascii_resource); | 7045 morphed->set_resource(ascii_resource); |
7056 } | 7046 } |
7057 } | 7047 } |
7058 | 7048 |
7059 | 7049 |
7060 // Test that we can still flatten a string if the components it is built up | 7050 // Test that we can still flatten a string if the components it is built up |
7061 // from have been turned into 16 bit strings in the mean time. | 7051 // from have been turned into 16 bit strings in the mean time. |
7062 THREADED_TEST(MorphCompositeStringTest) { | 7052 THREADED_TEST(MorphCompositeStringTest) { |
(...skipping 1339 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
8402 " i++;" | 8392 " i++;" |
8403 " return s(o);" | 8393 " return s(o);" |
8404 " }" | 8394 " }" |
8405 " }" | 8395 " }" |
8406 "};" | 8396 "};" |
8407 "s(o);"); | 8397 "s(o);"); |
8408 CHECK(try_catch.HasCaught()); | 8398 CHECK(try_catch.HasCaught()); |
8409 v8::String::Utf8Value value(try_catch.Exception()); | 8399 v8::String::Utf8Value value(try_catch.Exception()); |
8410 CHECK_EQ(0, strcmp(*value, "Hey!")); | 8400 CHECK_EQ(0, strcmp(*value, "Hey!")); |
8411 } | 8401 } |
OLD | NEW |