Callers of Heap::AllocateStringFromOneByte() and Heap::AllocateStringFromUtf8() handlified.
R=yangguo@chromium.org Review URL: https://codereview.chromium.org/239083005 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@20821 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
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@ -281,9 +281,21 @@ Handle<String> Factory::NewStringFromOneByte(Vector<const uint8_t> string,
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Handle<String> Factory::NewStringFromUtf8(Vector<const char> string,
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PretenureFlag pretenure) {
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// Check for ASCII first since this is the common case.
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const char* start = string.start();
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int length = string.length();
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int non_ascii_start = String::NonAsciiStart(start, length);
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if (non_ascii_start >= length) {
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// If the string is ASCII, we do not need to convert the characters
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// since UTF8 is backwards compatible with ASCII.
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return NewStringFromOneByte(Vector<const uint8_t>::cast(string), pretenure);
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}
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// Non-ASCII and we need to decode.
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CALL_HEAP_FUNCTION(
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isolate(),
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isolate()->heap()->AllocateStringFromUtf8(string, pretenure),
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isolate()->heap()->AllocateStringFromUtf8Slow(string,
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non_ascii_start,
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pretenure),
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String);
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}
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@ -85,22 +85,6 @@ void PromotionQueue::ActivateGuardIfOnTheSamePage() {
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}
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MaybeObject* Heap::AllocateStringFromUtf8(Vector<const char> str,
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PretenureFlag pretenure) {
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// Check for ASCII first since this is the common case.
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const char* start = str.start();
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int length = str.length();
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int non_ascii_start = String::NonAsciiStart(start, length);
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if (non_ascii_start >= length) {
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// If the string is ASCII, we do not need to convert the characters
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// since UTF8 is backwards compatible with ASCII.
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return AllocateStringFromOneByte(str, pretenure);
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}
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// Non-ASCII and we need to decode.
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return AllocateStringFromUtf8Slow(str, non_ascii_start, pretenure);
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}
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template<>
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bool inline Heap::IsOneByte(Vector<const char> str, int chars) {
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// TODO(dcarney): incorporate Latin-1 check when Latin-1 is supported?
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10
src/heap.h
10
src/heap.h
@ -788,16 +788,6 @@ class Heap {
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MUST_USE_RESULT MaybeObject* AllocateStringFromOneByte(
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Vector<const uint8_t> str,
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PretenureFlag pretenure = NOT_TENURED);
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// TODO(dcarney): remove this function.
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MUST_USE_RESULT inline MaybeObject* AllocateStringFromOneByte(
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Vector<const char> str,
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PretenureFlag pretenure = NOT_TENURED) {
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return AllocateStringFromOneByte(Vector<const uint8_t>::cast(str),
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pretenure);
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}
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MUST_USE_RESULT inline MaybeObject* AllocateStringFromUtf8(
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Vector<const char> str,
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PretenureFlag pretenure = NOT_TENURED);
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MUST_USE_RESULT MaybeObject* AllocateStringFromUtf8Slow(
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Vector<const char> str,
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int non_ascii_start,
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@ -9600,13 +9600,13 @@ RUNTIME_FUNCTION(MaybeObject*, Runtime_DateParseString) {
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RUNTIME_FUNCTION(MaybeObject*, Runtime_DateLocalTimezone) {
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SealHandleScope shs(isolate);
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HandleScope scope(isolate);
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ASSERT(args.length() == 1);
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CONVERT_DOUBLE_ARG_CHECKED(x, 0);
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const char* zone =
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isolate->date_cache()->LocalTimezone(static_cast<int64_t>(x));
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return isolate->heap()->AllocateStringFromUtf8(CStrVector(zone));
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return *isolate->factory()->NewStringFromUtf8(CStrVector(zone));
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}
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@ -13610,6 +13610,7 @@ RUNTIME_FUNCTION(MaybeObject*, Runtime_GetHeapUsage) {
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#ifdef V8_I18N_SUPPORT
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RUNTIME_FUNCTION(MaybeObject*, Runtime_CanonicalizeLanguageTag) {
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HandleScope scope(isolate);
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Factory* factory = isolate->factory();
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ASSERT(args.length() == 1);
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CONVERT_ARG_HANDLE_CHECKED(String, locale_id_str, 0);
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@ -13626,7 +13627,7 @@ RUNTIME_FUNCTION(MaybeObject*, Runtime_CanonicalizeLanguageTag) {
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uloc_forLanguageTag(*locale_id, icu_result, ULOC_FULLNAME_CAPACITY,
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&icu_length, &error);
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if (U_FAILURE(error) || icu_length == 0) {
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return isolate->heap()->AllocateStringFromOneByte(CStrVector(kInvalidTag));
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return *factory->NewStringFromOneByte(OneByteVector(kInvalidTag));
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}
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char result[ULOC_FULLNAME_CAPACITY];
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@ -13635,10 +13636,10 @@ RUNTIME_FUNCTION(MaybeObject*, Runtime_CanonicalizeLanguageTag) {
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uloc_toLanguageTag(icu_result, result, ULOC_FULLNAME_CAPACITY, TRUE, &error);
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if (U_FAILURE(error)) {
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return isolate->heap()->AllocateStringFromOneByte(CStrVector(kInvalidTag));
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return *factory->NewStringFromOneByte(OneByteVector(kInvalidTag));
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}
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return isolate->heap()->AllocateStringFromOneByte(CStrVector(result));
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return *factory->NewStringFromOneByte(OneByteVector(result));
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}
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@ -13690,7 +13691,8 @@ RUNTIME_FUNCTION(MaybeObject*, Runtime_AvailableLocalesOf) {
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RUNTIME_FUNCTION(MaybeObject*, Runtime_GetDefaultICULocale) {
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SealHandleScope shs(isolate);
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HandleScope scope(isolate);
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Factory* factory = isolate->factory();
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ASSERT(args.length() == 0);
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@ -13702,10 +13704,10 @@ RUNTIME_FUNCTION(MaybeObject*, Runtime_GetDefaultICULocale) {
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uloc_toLanguageTag(
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default_locale.getName(), result, ULOC_FULLNAME_CAPACITY, FALSE, &status);
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if (U_SUCCESS(status)) {
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return isolate->heap()->AllocateStringFromOneByte(CStrVector(result));
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return *factory->NewStringFromOneByte(OneByteVector(result));
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}
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return isolate->heap()->AllocateStringFromOneByte(CStrVector("und"));
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return *factory->NewStringFromOneByte(STATIC_ASCII_VECTOR("und"));
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}
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@ -14416,13 +14418,13 @@ RUNTIME_FUNCTION(MaybeObject*, Runtime_GetAndClearOverflowedStackTrace) {
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// Returns V8 version as a string.
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RUNTIME_FUNCTION(MaybeObject*, Runtime_GetV8Version) {
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SealHandleScope shs(isolate);
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HandleScope scope(isolate);
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ASSERT_EQ(args.length(), 0);
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const char* version_string = v8::V8::GetVersion();
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return isolate->heap()->AllocateStringFromOneByte(CStrVector(version_string),
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NOT_TENURED);
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return *isolate->factory()->NewStringFromOneByte(
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OneByteVector(version_string), NOT_TENURED);
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}
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