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1 // Copyright 2014 the V8 project authors. All rights reserved. | 1 // Copyright 2014 the V8 project authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "src/factory.h" | 5 #include "src/factory.h" |
6 | 6 |
7 #include "src/allocation-site-scopes.h" | 7 #include "src/allocation-site-scopes.h" |
8 #include "src/base/bits.h" | 8 #include "src/base/bits.h" |
9 #include "src/bootstrapper.h" | 9 #include "src/bootstrapper.h" |
10 #include "src/conversions.h" | 10 #include "src/conversions.h" |
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1754 JSFunction::EnsureHasInitialMap(function); | 1754 JSFunction::EnsureHasInitialMap(function); |
1755 Handle<Map> map(function->initial_map()); | 1755 Handle<Map> map(function->initial_map()); |
1756 DCHECK(map->instance_type() == JS_GENERATOR_OBJECT_TYPE); | 1756 DCHECK(map->instance_type() == JS_GENERATOR_OBJECT_TYPE); |
1757 CALL_HEAP_FUNCTION( | 1757 CALL_HEAP_FUNCTION( |
1758 isolate(), | 1758 isolate(), |
1759 isolate()->heap()->AllocateJSObjectFromMap(*map), | 1759 isolate()->heap()->AllocateJSObjectFromMap(*map), |
1760 JSGeneratorObject); | 1760 JSGeneratorObject); |
1761 } | 1761 } |
1762 | 1762 |
1763 | 1763 |
1764 Handle<JSArrayBuffer> Factory::NewJSArrayBuffer() { | 1764 Handle<JSArrayBuffer> Factory::NewJSArrayBuffer(SharedFlag is_shared) { |
1765 Handle<JSFunction> array_buffer_fun( | 1765 Handle<JSFunction> array_buffer_fun( |
1766 isolate()->native_context()->array_buffer_fun()); | 1766 is_shared ? isolate()->native_context()->shared_array_buffer_fun() |
| 1767 : isolate()->native_context()->array_buffer_fun()); |
1767 CALL_HEAP_FUNCTION( | 1768 CALL_HEAP_FUNCTION( |
1768 isolate(), | 1769 isolate(), |
1769 isolate()->heap()->AllocateJSObject(*array_buffer_fun), | 1770 isolate()->heap()->AllocateJSObject(*array_buffer_fun), |
1770 JSArrayBuffer); | 1771 JSArrayBuffer); |
1771 } | 1772 } |
1772 | 1773 |
1773 | 1774 |
1774 Handle<JSDataView> Factory::NewJSDataView() { | 1775 Handle<JSDataView> Factory::NewJSDataView() { |
1775 Handle<JSFunction> data_view_fun( | 1776 Handle<JSFunction> data_view_fun( |
1776 isolate()->native_context()->data_view_fun()); | 1777 isolate()->native_context()->data_view_fun()); |
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1881 TYPED_ARRAYS(TYPED_ARRAY_FUN) | 1882 TYPED_ARRAYS(TYPED_ARRAY_FUN) |
1882 #undef TYPED_ARRAY_FUN | 1883 #undef TYPED_ARRAY_FUN |
1883 | 1884 |
1884 default: | 1885 default: |
1885 UNREACHABLE(); | 1886 UNREACHABLE(); |
1886 return NULL; | 1887 return NULL; |
1887 } | 1888 } |
1888 } | 1889 } |
1889 | 1890 |
1890 | 1891 |
| 1892 JSFunction* GetSharedTypedArrayFun(ExternalArrayType type, Isolate* isolate) { |
| 1893 Context* native_context = isolate->context()->native_context(); |
| 1894 switch (type) { |
| 1895 #define SHARED_TYPED_ARRAY_FUN(Type, type, TYPE, ctype, size) \ |
| 1896 case kExternal##Type##Array: \ |
| 1897 return native_context->shared_##type##_array_fun(); |
| 1898 |
| 1899 TYPED_ARRAYS(SHARED_TYPED_ARRAY_FUN) |
| 1900 #undef SHARED_TYPED_ARRAY_FUN |
| 1901 |
| 1902 default: |
| 1903 UNREACHABLE(); |
| 1904 return NULL; |
| 1905 } |
| 1906 } |
| 1907 |
| 1908 |
1891 void SetupArrayBufferView(i::Isolate* isolate, | 1909 void SetupArrayBufferView(i::Isolate* isolate, |
1892 i::Handle<i::JSArrayBufferView> obj, | 1910 i::Handle<i::JSArrayBufferView> obj, |
1893 i::Handle<i::JSArrayBuffer> buffer, | 1911 i::Handle<i::JSArrayBuffer> buffer, |
1894 size_t byte_offset, size_t byte_length) { | 1912 size_t byte_offset, size_t byte_length) { |
1895 DCHECK(byte_offset + byte_length <= | 1913 DCHECK(byte_offset + byte_length <= |
1896 static_cast<size_t>(buffer->byte_length()->Number())); | 1914 static_cast<size_t>(buffer->byte_length()->Number())); |
1897 | 1915 |
1898 obj->set_buffer(*buffer); | 1916 obj->set_buffer(*buffer); |
1899 | 1917 |
1900 i::Handle<i::Object> byte_offset_object = | 1918 i::Handle<i::Object> byte_offset_object = |
1901 isolate->factory()->NewNumberFromSize(byte_offset); | 1919 isolate->factory()->NewNumberFromSize(byte_offset); |
1902 obj->set_byte_offset(*byte_offset_object); | 1920 obj->set_byte_offset(*byte_offset_object); |
1903 | 1921 |
1904 i::Handle<i::Object> byte_length_object = | 1922 i::Handle<i::Object> byte_length_object = |
1905 isolate->factory()->NewNumberFromSize(byte_length); | 1923 isolate->factory()->NewNumberFromSize(byte_length); |
1906 obj->set_byte_length(*byte_length_object); | 1924 obj->set_byte_length(*byte_length_object); |
1907 } | 1925 } |
1908 | 1926 |
1909 | 1927 |
1910 } // namespace | 1928 } // namespace |
1911 | 1929 |
1912 | 1930 |
1913 Handle<JSTypedArray> Factory::NewJSTypedArray(ExternalArrayType type) { | 1931 Handle<JSTypedArray> Factory::NewJSTypedArray(ExternalArrayType type, |
1914 Handle<JSFunction> typed_array_fun_handle(GetTypedArrayFun(type, isolate())); | 1932 SharedFlag is_shared) { |
| 1933 Handle<JSFunction> typed_array_fun_handle( |
| 1934 is_shared ? GetSharedTypedArrayFun(type, isolate()) |
| 1935 : GetTypedArrayFun(type, isolate())); |
1915 | 1936 |
1916 CALL_HEAP_FUNCTION( | 1937 CALL_HEAP_FUNCTION( |
1917 isolate(), | 1938 isolate(), |
1918 isolate()->heap()->AllocateJSObject(*typed_array_fun_handle), | 1939 isolate()->heap()->AllocateJSObject(*typed_array_fun_handle), |
1919 JSTypedArray); | 1940 JSTypedArray); |
1920 } | 1941 } |
1921 | 1942 |
1922 | 1943 |
1923 Handle<JSTypedArray> Factory::NewJSTypedArray(ElementsKind elements_kind) { | 1944 Handle<JSTypedArray> Factory::NewJSTypedArray(ElementsKind elements_kind) { |
1924 Handle<JSFunction> typed_array_fun_handle( | 1945 Handle<JSFunction> typed_array_fun_handle( |
1925 GetTypedArrayFun(elements_kind, isolate())); | 1946 GetTypedArrayFun(elements_kind, isolate())); |
1926 | 1947 |
1927 CALL_HEAP_FUNCTION( | 1948 CALL_HEAP_FUNCTION( |
1928 isolate(), isolate()->heap()->AllocateJSObject(*typed_array_fun_handle), | 1949 isolate(), isolate()->heap()->AllocateJSObject(*typed_array_fun_handle), |
1929 JSTypedArray); | 1950 JSTypedArray); |
1930 } | 1951 } |
1931 | 1952 |
1932 | 1953 |
1933 Handle<JSTypedArray> Factory::NewJSTypedArray(ExternalArrayType type, | 1954 Handle<JSTypedArray> Factory::NewJSTypedArray(ExternalArrayType type, |
1934 Handle<JSArrayBuffer> buffer, | 1955 Handle<JSArrayBuffer> buffer, |
1935 size_t byte_offset, | 1956 size_t byte_offset, size_t length, |
1936 size_t length) { | 1957 SharedFlag is_shared) { |
1937 Handle<JSTypedArray> obj = NewJSTypedArray(type); | 1958 Handle<JSTypedArray> obj = NewJSTypedArray(type, is_shared); |
1938 | 1959 |
1939 size_t element_size = GetExternalArrayElementSize(type); | 1960 size_t element_size = GetExternalArrayElementSize(type); |
1940 ElementsKind elements_kind = GetExternalArrayElementsKind(type); | 1961 ElementsKind elements_kind = GetExternalArrayElementsKind(type); |
1941 | 1962 |
1942 CHECK(byte_offset % element_size == 0); | 1963 CHECK(byte_offset % element_size == 0); |
1943 | 1964 |
1944 CHECK(length <= (std::numeric_limits<size_t>::max() / element_size)); | 1965 CHECK(length <= (std::numeric_limits<size_t>::max() / element_size)); |
1945 CHECK(length <= static_cast<size_t>(Smi::kMaxValue)); | 1966 CHECK(length <= static_cast<size_t>(Smi::kMaxValue)); |
1946 size_t byte_length = length * element_size; | 1967 size_t byte_length = length * element_size; |
1947 SetupArrayBufferView(isolate(), obj, buffer, byte_offset, byte_length); | 1968 SetupArrayBufferView(isolate(), obj, buffer, byte_offset, byte_length); |
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2469 return Handle<Object>::null(); | 2490 return Handle<Object>::null(); |
2470 } | 2491 } |
2471 | 2492 |
2472 | 2493 |
2473 Handle<Object> Factory::ToBoolean(bool value) { | 2494 Handle<Object> Factory::ToBoolean(bool value) { |
2474 return value ? true_value() : false_value(); | 2495 return value ? true_value() : false_value(); |
2475 } | 2496 } |
2476 | 2497 |
2477 | 2498 |
2478 } } // namespace v8::internal | 2499 } } // namespace v8::internal |
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