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Unified Diff: third_party/WebKit/Source/bindings/core/v8/V8Binding.cpp

Issue 2834053003: Split V8Binding (Closed)
Patch Set: Rebase Created 3 years, 8 months ago
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Index: third_party/WebKit/Source/bindings/core/v8/V8Binding.cpp
diff --git a/third_party/WebKit/Source/bindings/core/v8/V8Binding.cpp b/third_party/WebKit/Source/bindings/core/v8/V8Binding.cpp
index 91a12d24b57bbacdd9b99e5e7160490c90d658d5..8e6594f49de404bfcb9fb9e8f51360db9a4fbfdd 100644
--- a/third_party/WebKit/Source/bindings/core/v8/V8Binding.cpp
+++ b/third_party/WebKit/Source/bindings/core/v8/V8Binding.cpp
@@ -30,841 +30,10 @@
#include "bindings/core/v8/V8Binding.h"
-#include "bindings/core/v8/ScriptController.h"
-#include "bindings/core/v8/V8AbstractEventListener.h"
-#include "bindings/core/v8/V8ArrayBufferView.h"
#include "bindings/core/v8/V8BindingMacros.h"
-#include "bindings/core/v8/V8Element.h"
-#include "bindings/core/v8/V8EventTarget.h"
-#include "bindings/core/v8/V8HTMLLinkElement.h"
-#include "bindings/core/v8/V8NodeFilter.h"
-#include "bindings/core/v8/V8NodeFilterCondition.h"
-#include "bindings/core/v8/V8ObjectConstructor.h"
-#include "bindings/core/v8/V8Window.h"
-#include "bindings/core/v8/V8WorkerGlobalScope.h"
-#include "bindings/core/v8/V8WorkletGlobalScope.h"
-#include "bindings/core/v8/V8XPathNSResolver.h"
-#include "bindings/core/v8/WindowProxy.h"
-#include "bindings/core/v8/WorkerOrWorkletScriptController.h"
-#include "bindings/core/v8/custom/V8CustomXPathNSResolver.h"
-#include "core/dom/Document.h"
-#include "core/dom/Element.h"
-#include "core/dom/FlexibleArrayBufferView.h"
-#include "core/dom/NodeFilter.h"
-#include "core/dom/QualifiedName.h"
-#include "core/frame/LocalDOMWindow.h"
-#include "core/frame/LocalFrame.h"
-#include "core/frame/LocalFrameClient.h"
-#include "core/frame/Settings.h"
-#include "core/inspector/InspectorTraceEvents.h"
-#include "core/loader/FrameLoader.h"
-#include "core/workers/WorkerGlobalScope.h"
-#include "core/workers/WorkletGlobalScope.h"
-#include "core/xml/XPathNSResolver.h"
-#include "platform/instrumentation/tracing/TracedValue.h"
-#include "platform/wtf/MathExtras.h"
-#include "platform/wtf/StdLibExtras.h"
-#include "platform/wtf/Threading.h"
-#include "platform/wtf/text/AtomicString.h"
-#include "platform/wtf/text/CString.h"
-#include "platform/wtf/text/CharacterNames.h"
-#include "platform/wtf/text/StringBuffer.h"
-#include "platform/wtf/text/StringHash.h"
-#include "platform/wtf/text/Unicode.h"
-#include "platform/wtf/text/WTFString.h"
namespace blink {
-NodeFilter* ToNodeFilter(v8::Local<v8::Value> callback,
- v8::Local<v8::Object> creation_context,
- ScriptState* script_state) {
- if (callback->IsNull())
- return nullptr;
- NodeFilter* filter = NodeFilter::Create();
-
- v8::Local<v8::Value> filter_wrapper =
- ToV8(filter, creation_context, script_state->GetIsolate());
- if (filter_wrapper.IsEmpty())
- return nullptr;
-
- NodeFilterCondition* condition = V8NodeFilterCondition::Create(
- callback, filter_wrapper.As<v8::Object>(), script_state);
- filter->SetCondition(condition);
-
- return filter;
-}
-
-bool ToBooleanSlow(v8::Isolate* isolate,
- v8::Local<v8::Value> value,
- ExceptionState& exception_state) {
- DCHECK(!value->IsBoolean());
- v8::TryCatch block(isolate);
- bool result = false;
- if (!V8Call(value->BooleanValue(isolate->GetCurrentContext()), result, block))
- exception_state.RethrowV8Exception(block.Exception());
- return result;
-}
-
-const int32_t kMaxInt32 = 0x7fffffff;
-const int32_t kMinInt32 = -kMaxInt32 - 1;
-const uint32_t kMaxUInt32 = 0xffffffff;
-const int64_t kJSMaxInteger =
- 0x20000000000000LL -
- 1; // 2^53 - 1, maximum uniquely representable integer in ECMAScript.
-
-static double EnforceRange(double x,
- double minimum,
- double maximum,
- const char* type_name,
- ExceptionState& exception_state) {
- if (std::isnan(x) || std::isinf(x)) {
- exception_state.ThrowTypeError(
- "Value is" + String(std::isinf(x) ? " infinite and" : "") +
- " not of type '" + String(type_name) + "'.");
- return 0;
- }
- x = trunc(x);
- if (x < minimum || x > maximum) {
- exception_state.ThrowTypeError("Value is outside the '" +
- String(type_name) + "' value range.");
- return 0;
- }
- return x;
-}
-
-template <typename T>
-struct IntTypeLimits {};
-
-template <>
-struct IntTypeLimits<int8_t> {
- static const int8_t kMinValue = -128;
- static const int8_t kMaxValue = 127;
- static const unsigned kNumberOfValues = 256; // 2^8
-};
-
-template <>
-struct IntTypeLimits<uint8_t> {
- static const uint8_t kMaxValue = 255;
- static const unsigned kNumberOfValues = 256; // 2^8
-};
-
-template <>
-struct IntTypeLimits<int16_t> {
- static const short kMinValue = -32768;
- static const short kMaxValue = 32767;
- static const unsigned kNumberOfValues = 65536; // 2^16
-};
-
-template <>
-struct IntTypeLimits<uint16_t> {
- static const unsigned short kMaxValue = 65535;
- static const unsigned kNumberOfValues = 65536; // 2^16
-};
-
-template <typename T>
-static inline T ToSmallerInt(v8::Isolate* isolate,
- v8::Local<v8::Value> value,
- IntegerConversionConfiguration configuration,
- const char* type_name,
- ExceptionState& exception_state) {
- typedef IntTypeLimits<T> LimitsTrait;
-
- // Fast case. The value is already a 32-bit integer in the right range.
- if (value->IsInt32()) {
- int32_t result = value.As<v8::Int32>()->Value();
- if (result >= LimitsTrait::kMinValue && result <= LimitsTrait::kMaxValue)
- return static_cast<T>(result);
- if (configuration == kEnforceRange) {
- exception_state.ThrowTypeError("Value is outside the '" +
- String(type_name) + "' value range.");
- return 0;
- }
- if (configuration == kClamp)
- return clampTo<T>(result);
- result %= LimitsTrait::kNumberOfValues;
- return static_cast<T>(result > LimitsTrait::kMaxValue
- ? result - LimitsTrait::kNumberOfValues
- : result);
- }
-
- v8::Local<v8::Number> number_object;
- if (value->IsNumber()) {
- number_object = value.As<v8::Number>();
- } else {
- // Can the value be converted to a number?
- v8::TryCatch block(isolate);
- if (!V8Call(value->ToNumber(isolate->GetCurrentContext()), number_object,
- block)) {
- exception_state.RethrowV8Exception(block.Exception());
- return 0;
- }
- }
- DCHECK(!number_object.IsEmpty());
-
- if (configuration == kEnforceRange)
- return EnforceRange(number_object->Value(), LimitsTrait::kMinValue,
- LimitsTrait::kMaxValue, type_name, exception_state);
-
- double number_value = number_object->Value();
- if (std::isnan(number_value) || !number_value)
- return 0;
-
- if (configuration == kClamp)
- return clampTo<T>(number_value);
-
- if (std::isinf(number_value))
- return 0;
-
- number_value =
- number_value < 0 ? -floor(fabs(number_value)) : floor(fabs(number_value));
- number_value = fmod(number_value, LimitsTrait::kNumberOfValues);
-
- return static_cast<T>(number_value > LimitsTrait::kMaxValue
- ? number_value - LimitsTrait::kNumberOfValues
- : number_value);
-}
-
-template <typename T>
-static inline T ToSmallerUInt(v8::Isolate* isolate,
- v8::Local<v8::Value> value,
- IntegerConversionConfiguration configuration,
- const char* type_name,
- ExceptionState& exception_state) {
- typedef IntTypeLimits<T> LimitsTrait;
-
- // Fast case. The value is a 32-bit signed integer - possibly positive?
- if (value->IsInt32()) {
- int32_t result = value.As<v8::Int32>()->Value();
- if (result >= 0 && result <= LimitsTrait::kMaxValue)
- return static_cast<T>(result);
- if (configuration == kEnforceRange) {
- exception_state.ThrowTypeError("Value is outside the '" +
- String(type_name) + "' value range.");
- return 0;
- }
- if (configuration == kClamp)
- return clampTo<T>(result);
- return static_cast<T>(result);
- }
-
- v8::Local<v8::Number> number_object;
- if (value->IsNumber()) {
- number_object = value.As<v8::Number>();
- } else {
- // Can the value be converted to a number?
- v8::TryCatch block(isolate);
- if (!V8Call(value->ToNumber(isolate->GetCurrentContext()), number_object,
- block)) {
- exception_state.RethrowV8Exception(block.Exception());
- return 0;
- }
- }
- DCHECK(!number_object.IsEmpty());
-
- if (configuration == kEnforceRange)
- return EnforceRange(number_object->Value(), 0, LimitsTrait::kMaxValue,
- type_name, exception_state);
-
- double number_value = number_object->Value();
-
- if (std::isnan(number_value) || !number_value)
- return 0;
-
- if (configuration == kClamp)
- return clampTo<T>(number_value);
-
- if (std::isinf(number_value))
- return 0;
-
- number_value =
- number_value < 0 ? -floor(fabs(number_value)) : floor(fabs(number_value));
- return static_cast<T>(fmod(number_value, LimitsTrait::kNumberOfValues));
-}
-
-int8_t ToInt8(v8::Isolate* isolate,
- v8::Local<v8::Value> value,
- IntegerConversionConfiguration configuration,
- ExceptionState& exception_state) {
- return ToSmallerInt<int8_t>(isolate, value, configuration, "byte",
- exception_state);
-}
-
-uint8_t ToUInt8(v8::Isolate* isolate,
- v8::Local<v8::Value> value,
- IntegerConversionConfiguration configuration,
- ExceptionState& exception_state) {
- return ToSmallerUInt<uint8_t>(isolate, value, configuration, "octet",
- exception_state);
-}
-
-int16_t ToInt16(v8::Isolate* isolate,
- v8::Local<v8::Value> value,
- IntegerConversionConfiguration configuration,
- ExceptionState& exception_state) {
- return ToSmallerInt<int16_t>(isolate, value, configuration, "short",
- exception_state);
-}
-
-uint16_t ToUInt16(v8::Isolate* isolate,
- v8::Local<v8::Value> value,
- IntegerConversionConfiguration configuration,
- ExceptionState& exception_state) {
- return ToSmallerUInt<uint16_t>(isolate, value, configuration,
- "unsigned short", exception_state);
-}
-
-int32_t ToInt32Slow(v8::Isolate* isolate,
- v8::Local<v8::Value> value,
- IntegerConversionConfiguration configuration,
- ExceptionState& exception_state) {
- DCHECK(!value->IsInt32());
- // Can the value be converted to a number?
- v8::TryCatch block(isolate);
- v8::Local<v8::Number> number_object;
- if (!V8Call(value->ToNumber(isolate->GetCurrentContext()), number_object,
- block)) {
- exception_state.RethrowV8Exception(block.Exception());
- return 0;
- }
-
- DCHECK(!number_object.IsEmpty());
-
- double number_value = number_object->Value();
- if (configuration == kEnforceRange)
- return EnforceRange(number_value, kMinInt32, kMaxInt32, "long",
- exception_state);
-
- if (std::isnan(number_value))
- return 0;
-
- if (configuration == kClamp)
- return clampTo<int32_t>(number_value);
-
- if (std::isinf(number_value))
- return 0;
-
- int32_t result;
- if (!V8Call(number_object->Int32Value(isolate->GetCurrentContext()), result,
- block)) {
- exception_state.RethrowV8Exception(block.Exception());
- return 0;
- }
- return result;
-}
-
-uint32_t ToUInt32Slow(v8::Isolate* isolate,
- v8::Local<v8::Value> value,
- IntegerConversionConfiguration configuration,
- ExceptionState& exception_state) {
- DCHECK(!value->IsUint32());
- if (value->IsInt32()) {
- DCHECK_NE(configuration, kNormalConversion);
- int32_t result = value.As<v8::Int32>()->Value();
- if (result >= 0)
- return result;
- if (configuration == kEnforceRange) {
- exception_state.ThrowTypeError(
- "Value is outside the 'unsigned long' value range.");
- return 0;
- }
- DCHECK_EQ(configuration, kClamp);
- return clampTo<uint32_t>(result);
- }
-
- // Can the value be converted to a number?
- v8::TryCatch block(isolate);
- v8::Local<v8::Number> number_object;
- if (!V8Call(value->ToNumber(isolate->GetCurrentContext()), number_object,
- block)) {
- exception_state.RethrowV8Exception(block.Exception());
- return 0;
- }
- DCHECK(!number_object.IsEmpty());
-
- if (configuration == kEnforceRange)
- return EnforceRange(number_object->Value(), 0, kMaxUInt32, "unsigned long",
- exception_state);
-
- double number_value = number_object->Value();
-
- if (std::isnan(number_value))
- return 0;
-
- if (configuration == kClamp)
- return clampTo<uint32_t>(number_value);
-
- if (std::isinf(number_value))
- return 0;
-
- uint32_t result;
- if (!V8Call(number_object->Uint32Value(isolate->GetCurrentContext()), result,
- block)) {
- exception_state.RethrowV8Exception(block.Exception());
- return 0;
- }
- return result;
-}
-
-int64_t ToInt64Slow(v8::Isolate* isolate,
- v8::Local<v8::Value> value,
- IntegerConversionConfiguration configuration,
- ExceptionState& exception_state) {
- DCHECK(!value->IsInt32());
-
- v8::Local<v8::Number> number_object;
- // Can the value be converted to a number?
- v8::TryCatch block(isolate);
- if (!V8Call(value->ToNumber(isolate->GetCurrentContext()), number_object,
- block)) {
- exception_state.RethrowV8Exception(block.Exception());
- return 0;
- }
- DCHECK(!number_object.IsEmpty());
-
- double number_value = number_object->Value();
-
- if (configuration == kEnforceRange)
- return EnforceRange(number_value, -kJSMaxInteger, kJSMaxInteger,
- "long long", exception_state);
-
- if (std::isnan(number_value) || std::isinf(number_value))
- return 0;
-
- // NaNs and +/-Infinity should be 0, otherwise modulo 2^64.
- unsigned long long integer;
- doubleToInteger(number_value, integer);
- return integer;
-}
-
-uint64_t ToUInt64Slow(v8::Isolate* isolate,
- v8::Local<v8::Value> value,
- IntegerConversionConfiguration configuration,
- ExceptionState& exception_state) {
- DCHECK(!value->IsUint32());
- if (value->IsInt32()) {
- ASSERT(configuration != kNormalConversion);
- int32_t result = value.As<v8::Int32>()->Value();
- if (result >= 0)
- return result;
- if (configuration == kEnforceRange) {
- exception_state.ThrowTypeError(
- "Value is outside the 'unsigned long long' value range.");
- return 0;
- }
- DCHECK_EQ(configuration, kClamp);
- return clampTo<uint64_t>(result);
- }
-
- v8::Local<v8::Number> number_object;
- // Can the value be converted to a number?
- v8::TryCatch block(isolate);
- if (!V8Call(value->ToNumber(isolate->GetCurrentContext()), number_object,
- block)) {
- exception_state.RethrowV8Exception(block.Exception());
- return 0;
- }
- DCHECK(!number_object.IsEmpty());
-
- double number_value = number_object->Value();
-
- if (configuration == kEnforceRange)
- return EnforceRange(number_value, 0, kJSMaxInteger, "unsigned long long",
- exception_state);
-
- if (std::isnan(number_value))
- return 0;
-
- if (configuration == kClamp)
- return clampTo<uint64_t>(number_value);
-
- if (std::isinf(number_value))
- return 0;
-
- // NaNs and +/-Infinity should be 0, otherwise modulo 2^64.
- unsigned long long integer;
- doubleToInteger(number_value, integer);
- return integer;
-}
-
-float ToRestrictedFloat(v8::Isolate* isolate,
- v8::Local<v8::Value> value,
- ExceptionState& exception_state) {
- float number_value = ToFloat(isolate, value, exception_state);
- if (exception_state.HadException())
- return 0;
- if (!std::isfinite(number_value)) {
- exception_state.ThrowTypeError("The provided float value is non-finite.");
- return 0;
- }
- return number_value;
-}
-
-double ToDoubleSlow(v8::Isolate* isolate,
- v8::Local<v8::Value> value,
- ExceptionState& exception_state) {
- DCHECK(!value->IsNumber());
- v8::TryCatch block(isolate);
- v8::Local<v8::Number> number_value;
- if (!value->ToNumber(isolate->GetCurrentContext()).ToLocal(&number_value)) {
- exception_state.RethrowV8Exception(block.Exception());
- return 0;
- }
- return number_value->Value();
-}
-
-double ToRestrictedDouble(v8::Isolate* isolate,
- v8::Local<v8::Value> value,
- ExceptionState& exception_state) {
- double number_value = ToDouble(isolate, value, exception_state);
- if (exception_state.HadException())
- return 0;
- if (!std::isfinite(number_value)) {
- exception_state.ThrowTypeError("The provided double value is non-finite.");
- return 0;
- }
- return number_value;
-}
-
-String ToByteString(v8::Isolate* isolate,
- v8::Local<v8::Value> value,
- ExceptionState& exception_state) {
- // Handle null default value.
- if (value.IsEmpty())
- return String();
-
- // From the Web IDL spec: http://heycam.github.io/webidl/#es-ByteString
- if (value.IsEmpty())
- return String();
-
- // 1. Let x be ToString(v)
- v8::Local<v8::String> string_object;
- if (value->IsString()) {
- string_object = value.As<v8::String>();
- } else {
- v8::TryCatch block(isolate);
- if (!V8Call(value->ToString(isolate->GetCurrentContext()), string_object,
- block)) {
- exception_state.RethrowV8Exception(block.Exception());
- return String();
- }
- }
-
- String x = ToCoreString(string_object);
-
- // 2. If the value of any element of x is greater than 255, then throw a
- // TypeError.
- if (!x.ContainsOnlyLatin1()) {
- exception_state.ThrowTypeError("Value is not a valid ByteString.");
- return String();
- }
-
- // 3. Return an IDL ByteString value whose length is the length of x, and
- // where the value of each element is the value of the corresponding
- // element of x.
- // Blink: A ByteString is simply a String with a range constrained per the
- // above, so this is the identity operation.
- return x;
-}
-
-static bool HasUnmatchedSurrogates(const String& string) {
- // By definition, 8-bit strings are confined to the Latin-1 code page and
- // have no surrogates, matched or otherwise.
- if (string.Is8Bit())
- return false;
-
- const UChar* characters = string.Characters16();
- const unsigned length = string.length();
-
- for (unsigned i = 0; i < length; ++i) {
- UChar c = characters[i];
- if (U16_IS_SINGLE(c))
- continue;
- if (U16_IS_TRAIL(c))
- return true;
- ASSERT(U16_IS_LEAD(c));
- if (i == length - 1)
- return true;
- UChar d = characters[i + 1];
- if (!U16_IS_TRAIL(d))
- return true;
- ++i;
- }
- return false;
-}
-
-// Replace unmatched surrogates with REPLACEMENT CHARACTER U+FFFD.
-static String ReplaceUnmatchedSurrogates(const String& string) {
- // This roughly implements http://heycam.github.io/webidl/#dfn-obtain-unicode
- // but since Blink strings are 16-bits internally, the output is simply
- // re-encoded to UTF-16.
-
- // The concept of surrogate pairs is explained at:
- // http://www.unicode.org/versions/Unicode6.2.0/ch03.pdf#G2630
-
- // Blink-specific optimization to avoid making an unnecessary copy.
- if (!HasUnmatchedSurrogates(string))
- return string;
- DCHECK(!string.Is8Bit());
-
- // 1. Let S be the DOMString value.
- const UChar* s = string.Characters16();
-
- // 2. Let n be the length of S.
- const unsigned n = string.length();
-
- // 3. Initialize i to 0.
- unsigned i = 0;
-
- // 4. Initialize U to be an empty sequence of Unicode characters.
- StringBuilder u;
- u.ReserveCapacity(n);
-
- // 5. While i < n:
- while (i < n) {
- // 1. Let c be the code unit in S at index i.
- UChar c = s[i];
- // 2. Depending on the value of c:
- if (U16_IS_SINGLE(c)) {
- // c < 0xD800 or c > 0xDFFF
- // Append to U the Unicode character with code point c.
- u.Append(c);
- } else if (U16_IS_TRAIL(c)) {
- // 0xDC00 <= c <= 0xDFFF
- // Append to U a U+FFFD REPLACEMENT CHARACTER.
- u.Append(kReplacementCharacter);
- } else {
- // 0xD800 <= c <= 0xDBFF
- DCHECK(U16_IS_LEAD(c));
- if (i == n - 1) {
- // 1. If i = n-1, then append to U a U+FFFD REPLACEMENT CHARACTER.
- u.Append(kReplacementCharacter);
- } else {
- // 2. Otherwise, i < n-1:
- DCHECK_LT(i, n - 1);
- // ....1. Let d be the code unit in S at index i+1.
- UChar d = s[i + 1];
- if (U16_IS_TRAIL(d)) {
- // 2. If 0xDC00 <= d <= 0xDFFF, then:
- // ..1. Let a be c & 0x3FF.
- // ..2. Let b be d & 0x3FF.
- // ..3. Append to U the Unicode character with code point
- // 2^16+2^10*a+b.
- u.Append(U16_GET_SUPPLEMENTARY(c, d));
- // Blink: This is equivalent to u.append(c); u.append(d);
- ++i;
- } else {
- // 3. Otherwise, d < 0xDC00 or d > 0xDFFF. Append to U a U+FFFD
- // REPLACEMENT CHARACTER.
- u.Append(kReplacementCharacter);
- }
- }
- }
- // 3. Set i to i+1.
- ++i;
- }
-
- // 6. Return U.
- DCHECK_EQ(u.length(), string.length());
- return u.ToString();
-}
-
-String ToUSVString(v8::Isolate* isolate,
- v8::Local<v8::Value> value,
- ExceptionState& exception_state) {
- // http://heycam.github.io/webidl/#es-USVString
- if (value.IsEmpty())
- return String();
-
- v8::Local<v8::String> string_object;
- if (value->IsString()) {
- string_object = value.As<v8::String>();
- } else {
- v8::TryCatch block(isolate);
- if (!V8Call(value->ToString(isolate->GetCurrentContext()), string_object,
- block)) {
- exception_state.RethrowV8Exception(block.Exception());
- return String();
- }
- }
-
- // USVString is identical to DOMString except that "convert a
- // DOMString to a sequence of Unicode characters" is used subsequently
- // when converting to an IDL value
- String x = ToCoreString(string_object);
- return ReplaceUnmatchedSurrogates(x);
-}
-
-XPathNSResolver* ToXPathNSResolver(ScriptState* script_state,
- v8::Local<v8::Value> value) {
- XPathNSResolver* resolver = nullptr;
- if (V8XPathNSResolver::hasInstance(value, script_state->GetIsolate()))
- resolver = V8XPathNSResolver::toImpl(v8::Local<v8::Object>::Cast(value));
- else if (value->IsObject())
- resolver =
- V8CustomXPathNSResolver::Create(script_state, value.As<v8::Object>());
- return resolver;
-}
-
-DOMWindow* ToDOMWindow(v8::Isolate* isolate, v8::Local<v8::Value> value) {
- if (value.IsEmpty() || !value->IsObject())
- return 0;
-
- v8::Local<v8::Object> window_wrapper = V8Window::findInstanceInPrototypeChain(
- v8::Local<v8::Object>::Cast(value), isolate);
- if (!window_wrapper.IsEmpty())
- return V8Window::toImpl(window_wrapper);
- return 0;
-}
-
-LocalDOMWindow* ToLocalDOMWindow(v8::Local<v8::Context> context) {
- if (context.IsEmpty())
- return 0;
- return ToLocalDOMWindow(
- ToDOMWindow(context->GetIsolate(), context->Global()));
-}
-
-LocalDOMWindow* EnteredDOMWindow(v8::Isolate* isolate) {
- LocalDOMWindow* window =
- ToLocalDOMWindow(isolate->GetEnteredOrMicrotaskContext());
- DCHECK(window);
- return window;
-}
-
-LocalDOMWindow* CurrentDOMWindow(v8::Isolate* isolate) {
- return ToLocalDOMWindow(isolate->GetCurrentContext());
-}
-
-ExecutionContext* ToExecutionContext(v8::Local<v8::Context> context) {
- if (context.IsEmpty())
- return 0;
- v8::Local<v8::Object> global = context->Global();
- v8::Local<v8::Object> window_wrapper =
- V8Window::findInstanceInPrototypeChain(global, context->GetIsolate());
- if (!window_wrapper.IsEmpty())
- return V8Window::toImpl(window_wrapper)->GetExecutionContext();
- v8::Local<v8::Object> worker_wrapper =
- V8WorkerGlobalScope::findInstanceInPrototypeChain(global,
- context->GetIsolate());
- if (!worker_wrapper.IsEmpty())
- return V8WorkerGlobalScope::toImpl(worker_wrapper)->GetExecutionContext();
- v8::Local<v8::Object> worklet_wrapper =
- V8WorkletGlobalScope::findInstanceInPrototypeChain(global,
- context->GetIsolate());
- if (!worklet_wrapper.IsEmpty())
- return V8WorkletGlobalScope::toImpl(worklet_wrapper);
- // FIXME: Is this line of code reachable?
- return nullptr;
-}
-
-ExecutionContext* CurrentExecutionContext(v8::Isolate* isolate) {
- return ToExecutionContext(isolate->GetCurrentContext());
-}
-
-LocalFrame* ToLocalFrameIfNotDetached(v8::Local<v8::Context> context) {
- LocalDOMWindow* window = ToLocalDOMWindow(context);
- if (window && window->IsCurrentlyDisplayedInFrame())
- return window->GetFrame();
- // We return 0 here because |context| is detached from the Frame. If we
- // did return |frame| we could get in trouble because the frame could be
- // navigated to another security origin.
- return nullptr;
-}
-
-void ToFlexibleArrayBufferView(v8::Isolate* isolate,
- v8::Local<v8::Value> value,
- FlexibleArrayBufferView& result,
- void* storage) {
- DCHECK(value->IsArrayBufferView());
- v8::Local<v8::ArrayBufferView> buffer = value.As<v8::ArrayBufferView>();
- if (!storage) {
- result.SetFull(V8ArrayBufferView::toImpl(buffer));
- return;
- }
- size_t length = buffer->ByteLength();
- buffer->CopyContents(storage, length);
- result.SetSmall(storage, length);
-}
-
-static ScriptState* ToScriptStateImpl(LocalFrame* frame,
- DOMWrapperWorld& world) {
- if (!frame)
- return nullptr;
- v8::Local<v8::Context> context = ToV8ContextEvenIfDetached(frame, world);
- if (context.IsEmpty())
- return nullptr;
- ScriptState* script_state = ScriptState::From(context);
- if (!script_state->ContextIsValid())
- return nullptr;
- DCHECK_EQ(frame, ToLocalFrameIfNotDetached(context));
- return script_state;
-}
-
-v8::Local<v8::Context> ToV8Context(ExecutionContext* context,
- DOMWrapperWorld& world) {
- DCHECK(context);
- if (context->IsDocument()) {
- if (LocalFrame* frame = ToDocument(context)->GetFrame())
- return ToV8Context(frame, world);
- } else if (context->IsWorkerGlobalScope()) {
- if (WorkerOrWorkletScriptController* script =
- ToWorkerOrWorkletGlobalScope(context)->ScriptController()) {
- if (script->GetScriptState()->ContextIsValid())
- return script->GetScriptState()->GetContext();
- }
- }
- return v8::Local<v8::Context>();
-}
-
-v8::Local<v8::Context> ToV8Context(LocalFrame* frame, DOMWrapperWorld& world) {
- ScriptState* script_state = ToScriptStateImpl(frame, world);
- if (!script_state)
- return v8::Local<v8::Context>();
- return script_state->GetContext();
-}
-
-v8::Local<v8::Context> ToV8ContextEvenIfDetached(LocalFrame* frame,
- DOMWrapperWorld& world) {
- DCHECK(frame);
- return frame->WindowProxy(world)->ContextIfInitialized();
-}
-
-ScriptState* ToScriptState(LocalFrame* frame, DOMWrapperWorld& world) {
- v8::HandleScope handle_scope(ToIsolate(frame));
- return ToScriptStateImpl(frame, world);
-}
-
-ScriptState* ToScriptStateForMainWorld(LocalFrame* frame) {
- return ToScriptState(frame, DOMWrapperWorld::MainWorld());
-}
-
-bool IsValidEnum(const String& value,
- const char** valid_values,
- size_t length,
- const String& enum_name,
- ExceptionState& exception_state) {
- for (size_t i = 0; i < length; ++i) {
- // Avoid the strlen inside String::operator== (because of the StringView).
- if (WTF::Equal(value.Impl(), valid_values[i]))
- return true;
- }
- exception_state.ThrowTypeError("The provided value '" + value +
- "' is not a valid enum value of type " +
- enum_name + ".");
- return false;
-}
-
-bool IsValidEnum(const Vector<String>& values,
- const char** valid_values,
- size_t length,
- const String& enum_name,
- ExceptionState& exception_state) {
- for (auto value : values) {
- if (!IsValidEnum(value, valid_values, length, enum_name, exception_state))
- return false;
- }
- return true;
-}
-
v8::Local<v8::Function> GetBoundFunction(v8::Local<v8::Function> function) {
v8::Local<v8::Value> bound_function = function->GetBoundFunction();
return bound_function->IsFunction()
@@ -872,55 +41,6 @@ v8::Local<v8::Function> GetBoundFunction(v8::Local<v8::Function> function) {
: function;
}
-v8::Local<v8::Object> GetEsIterator(v8::Isolate* isolate,
- v8::Local<v8::Object> object,
- ExceptionState& exception_state) {
- v8::TryCatch block(isolate);
- v8::Local<v8::Context> context = isolate->GetCurrentContext();
- v8::Local<v8::Value> iterator_getter;
- if (!object->Get(context, v8::Symbol::GetIterator(isolate))
- .ToLocal(&iterator_getter)) {
- exception_state.RethrowV8Exception(block.Exception());
- return v8::Local<v8::Object>();
- }
- if (!iterator_getter->IsFunction()) {
- exception_state.ThrowTypeError("Iterator getter is not callable.");
- return v8::Local<v8::Object>();
- }
-
- v8::Local<v8::Function> getter_function = iterator_getter.As<v8::Function>();
- v8::Local<v8::Value> iterator;
- if (!V8ScriptRunner::CallFunction(getter_function,
- ToExecutionContext(context), object, 0,
- nullptr, isolate)
- .ToLocal(&iterator)) {
- exception_state.RethrowV8Exception(block.Exception());
- return v8::Local<v8::Object>();
- }
- if (!iterator->IsObject()) {
- exception_state.ThrowTypeError("Iterator is not an object.");
- return v8::Local<v8::Object>();
- }
- return iterator.As<v8::Object>();
-}
-
-bool HasCallableIteratorSymbol(v8::Isolate* isolate,
- v8::Local<v8::Value> value,
- ExceptionState& exception_state) {
- if (!value->IsObject())
- return false;
- v8::TryCatch block(isolate);
- v8::Local<v8::Context> context = isolate->GetCurrentContext();
- v8::Local<v8::Value> iterator_getter;
- if (!value.As<v8::Object>()
- ->Get(context, v8::Symbol::GetIterator(isolate))
- .ToLocal(&iterator_getter)) {
- exception_state.RethrowV8Exception(block.Exception());
- return false;
- }
- return iterator_getter->IsFunction();
-}
-
bool AddHiddenValueToArray(v8::Isolate* isolate,
v8::Local<v8::Object> object,
v8::Local<v8::Value> value,
@@ -956,38 +76,6 @@ void RemoveHiddenValueFromArray(v8::Isolate* isolate,
}
}
-void MoveEventListenerToNewWrapper(v8::Isolate* isolate,
- v8::Local<v8::Object> object,
- EventListener* old_value,
- v8::Local<v8::Value> new_value,
- int array_index) {
- if (old_value) {
- V8AbstractEventListener* old_listener =
- V8AbstractEventListener::Cast(old_value);
- if (old_listener) {
- v8::Local<v8::Object> old_listener_object =
- old_listener->GetExistingListenerObject();
- if (!old_listener_object.IsEmpty())
- RemoveHiddenValueFromArray(isolate, object, old_listener_object,
- array_index);
- }
- }
- // Non-callable input is treated as null and ignored
- if (new_value->IsFunction())
- AddHiddenValueToArray(isolate, object, new_value, array_index);
-}
-
-v8::Isolate* ToIsolate(ExecutionContext* context) {
- if (context && context->IsDocument())
- return V8PerIsolateData::MainThreadIsolate();
- return v8::Isolate::GetCurrent();
-}
-
-v8::Isolate* ToIsolate(LocalFrame* frame) {
- DCHECK(frame);
- return frame->GetWindowProxyManager()->GetIsolate();
-}
-
v8::Local<v8::Value> FreezeV8Object(v8::Local<v8::Value> value,
v8::Isolate* isolate) {
value.As<v8::Object>()
@@ -997,18 +85,4 @@ v8::Local<v8::Value> FreezeV8Object(v8::Local<v8::Value> value,
return value;
}
-v8::Local<v8::Value> FromJSONString(v8::Isolate* isolate,
- const String& stringified_json,
- ExceptionState& exception_state) {
- v8::Local<v8::Value> parsed;
- v8::TryCatch try_catch(isolate);
- if (!V8Call(v8::JSON::Parse(isolate, V8String(isolate, stringified_json)),
- parsed, try_catch)) {
- if (try_catch.HasCaught())
- exception_state.RethrowV8Exception(try_catch.Exception());
- }
-
- return parsed;
-}
-
} // namespace blink
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