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Unified Diff: vm/dart_api_impl.cc

Issue 11275008: - Represent strings internally in UTF-16 format, this makes it (Closed) Base URL: http://dart.googlecode.com/svn/branches/bleeding_edge/dart/runtime/
Patch Set: Created 8 years, 2 months ago
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« vm/benchmark_test.cc ('K') | « vm/custom_isolate_test.cc ('k') | vm/dart_api_impl_test.cc » ('j') | vm/object_test.cc » ('J')
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Index: vm/dart_api_impl.cc
===================================================================
--- vm/dart_api_impl.cc (revision 14046)
+++ vm/dart_api_impl.cc (working copy)
@@ -273,13 +273,6 @@
*peer = data->peer();
return true;
}
- case kExternalFourByteStringCid: {
- RawExternalFourByteString* raw_string =
- reinterpret_cast<RawExternalFourByteString*>(raw_obj)->ptr();
- ExternalStringData<uint32_t>* data = raw_string->external_data_;
- *peer = data->peer();
- return true;
- }
}
return false;
}
@@ -1522,16 +1515,6 @@
}
-DART_EXPORT bool Dart_IsString8(Dart_Handle object) {
- return RawObject::IsOneByteStringClassId(Api::ClassId(object));
-}
-
-
-DART_EXPORT bool Dart_IsString16(Dart_Handle object) {
- return RawObject::IsTwoByteStringClassId(Api::ClassId(object));
-}
-
-
DART_EXPORT Dart_Handle Dart_StringLength(Dart_Handle str, intptr_t* len) {
Isolate* isolate = Isolate::Current();
DARTSCOPE(isolate);
@@ -1544,7 +1527,7 @@
}
-DART_EXPORT Dart_Handle Dart_NewString(const char* str) {
+DART_EXPORT Dart_Handle Dart_NewStringFromCString(const char* str) {
Isolate* isolate = Isolate::Current();
DARTSCOPE(isolate);
if (str == NULL) {
@@ -1558,39 +1541,39 @@
}
-DART_EXPORT Dart_Handle Dart_NewString8(const uint8_t* codepoints,
- intptr_t length) {
+DART_EXPORT Dart_Handle Dart_NewStringFromUTF8(const uint8_t* utf8_array,
+ intptr_t length) {
Isolate* isolate = Isolate::Current();
DARTSCOPE(isolate);
- if (codepoints == NULL && length != 0) {
- RETURN_NULL_ERROR(codepoints);
+ if (utf8_array == NULL && length != 0) {
+ RETURN_NULL_ERROR(utf8_array);
}
CHECK_LENGTH(length, String::kMaxElements);
- return Api::NewHandle(isolate, String::New(codepoints, length));
+ return Api::NewHandle(isolate, String::New(utf8_array, length));
}
-DART_EXPORT Dart_Handle Dart_NewString16(const uint16_t* codepoints,
- intptr_t length) {
+DART_EXPORT Dart_Handle Dart_NewStringFromUTF16(const uint16_t* utf16_array,
+ intptr_t length) {
Isolate* isolate = Isolate::Current();
DARTSCOPE(isolate);
- if (codepoints == NULL && length != 0) {
- RETURN_NULL_ERROR(codepoints);
+ if (utf16_array == NULL && length != 0) {
+ RETURN_NULL_ERROR(utf16_array);
}
CHECK_LENGTH(length, String::kMaxElements);
- return Api::NewHandle(isolate, String::New(codepoints, length));
+ return Api::NewHandle(isolate, String::New(utf16_array, length));
}
-DART_EXPORT Dart_Handle Dart_NewString32(const uint32_t* codepoints,
- intptr_t length) {
+DART_EXPORT Dart_Handle Dart_NewStringFromUTF32(const uint32_t* utf32_array,
+ intptr_t length) {
Isolate* isolate = Isolate::Current();
DARTSCOPE(isolate);
- if (codepoints == NULL && length != 0) {
- RETURN_NULL_ERROR(codepoints);
+ if (utf32_array == NULL && length != 0) {
+ RETURN_NULL_ERROR(utf32_array);
}
CHECK_LENGTH(length, String::kMaxElements);
- return Api::NewHandle(isolate, String::New(codepoints, length));
+ return Api::NewHandle(isolate, String::New(utf32_array, length));
}
@@ -1623,95 +1606,79 @@
}
-DART_EXPORT Dart_Handle Dart_NewExternalString8(const uint8_t* codepoints,
- intptr_t length,
- void* peer,
- Dart_PeerFinalizer callback) {
+DART_EXPORT Dart_Handle Dart_NewExternalUTF8String(const uint8_t* utf8_array,
+ intptr_t length,
+ void* peer,
+ Dart_PeerFinalizer cback) {
Isolate* isolate = Isolate::Current();
DARTSCOPE(isolate);
- if (codepoints == NULL && length != 0) {
- RETURN_NULL_ERROR(codepoints);
+ if (utf8_array == NULL && length != 0) {
+ RETURN_NULL_ERROR(utf8_array);
}
CHECK_LENGTH(length, String::kMaxElements);
- return Api::NewHandle(
- isolate, String::NewExternal(codepoints, length, peer, callback));
+ return Api::NewHandle(isolate,
+ String::NewExternal(utf8_array, length, peer, cback));
}
-DART_EXPORT Dart_Handle Dart_NewExternalString16(const uint16_t* codepoints,
- intptr_t length,
- void* peer,
- Dart_PeerFinalizer callback) {
+DART_EXPORT Dart_Handle Dart_NewExternalUTF16String(const uint16_t* utf16_array,
+ intptr_t length,
+ void* peer,
+ Dart_PeerFinalizer cback) {
Isolate* isolate = Isolate::Current();
DARTSCOPE(isolate);
- if (codepoints == NULL && length != 0) {
- RETURN_NULL_ERROR(codepoints);
+ if (utf16_array == NULL && length != 0) {
+ RETURN_NULL_ERROR(utf16_array);
}
CHECK_LENGTH(length, String::kMaxElements);
- return Api::NewHandle(
- isolate, String::NewExternal(codepoints, length, peer, callback));
+ return Api::NewHandle(isolate,
+ String::NewExternal(utf16_array, length, peer, cback));
}
-DART_EXPORT Dart_Handle Dart_NewExternalString32(const uint32_t* codepoints,
- intptr_t length,
- void* peer,
- Dart_PeerFinalizer callback) {
+DART_EXPORT Dart_Handle Dart_StringAsCString(Dart_Handle object,
+ const char** cstr) {
Isolate* isolate = Isolate::Current();
DARTSCOPE(isolate);
- if (codepoints == NULL && length != 0) {
- RETURN_NULL_ERROR(codepoints);
- }
- CHECK_LENGTH(length, String::kMaxElements);
- return Api::NewHandle(
- isolate, String::NewExternal(codepoints, length, peer, callback));
-}
-
-
-DART_EXPORT Dart_Handle Dart_StringGet8(Dart_Handle str,
- uint8_t* codepoints,
- intptr_t* length) {
- Isolate* isolate = Isolate::Current();
- DARTSCOPE(isolate);
- const OneByteString& str_obj = Api::UnwrapOneByteStringHandle(isolate, str);
+ const String& str_obj = Api::UnwrapStringHandle(isolate, object);
if (str_obj.IsNull()) {
- RETURN_TYPE_ERROR(isolate, str, String8);
+ RETURN_TYPE_ERROR(isolate, object, String);
}
- intptr_t str_len = str_obj.Length();
- intptr_t copy_len = (str_len > *length) ? *length : str_len;
- for (intptr_t i = 0; i < copy_len; i++) {
- codepoints[i] = static_cast<uint8_t>(str_obj.CharAt(i));
+ intptr_t string_length = Utf8::Length(str_obj);
+ char* res = Api::TopScope(isolate)->zone()->Alloc<char>(string_length + 1);
+ if (res == NULL) {
+ return Api::NewError("Unable to allocate memory");
}
- *length= copy_len;
+ const char* string_value = str_obj.ToCString();
+ memmove(res, string_value, string_length + 1);
+ ASSERT(res[string_length] == '\0');
+ *cstr = res;
return Api::Success(isolate);
}
-DART_EXPORT Dart_Handle Dart_StringGet16(Dart_Handle str,
- uint16_t* codepoints,
- intptr_t* length) {
+DART_EXPORT Dart_Handle Dart_StringAsUTF8(Dart_Handle str,
+ uint8_t* utf8_array,
+ intptr_t* length) {
Isolate* isolate = Isolate::Current();
DARTSCOPE(isolate);
const String& str_obj = Api::UnwrapStringHandle(isolate, str);
if (str_obj.IsNull()) {
RETURN_TYPE_ERROR(isolate, str, String);
}
- if (str_obj.CharSize() > String::kTwoByteChar) {
- return Api::NewError("Object is not a String16 or String8");
- }
intptr_t str_len = str_obj.Length();
- intptr_t copy_len = (str_len > *length) ? *length : str_len;
- for (intptr_t i = 0; i < copy_len; i++) {
- codepoints[i] = static_cast<uint16_t>(str_obj.CharAt(i));
+ if (str_len > *length) {
+ return Api::NewError("Input array is not large enough to hold the result");
}
- *length = copy_len;
+ str_obj.ToUTF8(utf8_array, str_len);
+ *length= str_len;
return Api::Success(isolate);
}
-DART_EXPORT Dart_Handle Dart_StringGet32(Dart_Handle str,
- uint32_t* codepoints,
- intptr_t* length) {
+DART_EXPORT Dart_Handle Dart_StringAsUTF16(Dart_Handle str,
+ uint16_t* utf16_array,
+ intptr_t* length) {
Isolate* isolate = Isolate::Current();
DARTSCOPE(isolate);
const String& str_obj = Api::UnwrapStringHandle(isolate, str);
@@ -1721,61 +1688,13 @@
intptr_t str_len = str_obj.Length();
intptr_t copy_len = (str_len > *length) ? *length : str_len;
for (intptr_t i = 0; i < copy_len; i++) {
- codepoints[i] = static_cast<uint32_t>(str_obj.CharAt(i));
+ utf16_array[i] = static_cast<uint16_t>(str_obj.CharAt(i));
}
*length = copy_len;
return Api::Success(isolate);
}
-DART_EXPORT Dart_Handle Dart_StringToCString(Dart_Handle object,
- const char** result) {
- Isolate* isolate = Isolate::Current();
- DARTSCOPE(isolate);
- const String& str_obj = Api::UnwrapStringHandle(isolate, object);
- if (str_obj.IsNull()) {
- RETURN_TYPE_ERROR(isolate, object, String);
- }
- intptr_t string_length = Utf8::Length(str_obj);
- char* res = Api::TopScope(isolate)->zone()->Alloc<char>(string_length + 1);
- if (res == NULL) {
- return Api::NewError("Unable to allocate memory");
- }
- const char* string_value = str_obj.ToCString();
- memmove(res, string_value, string_length + 1);
- ASSERT(res[string_length] == '\0');
- *result = res;
- return Api::Success(isolate);
-}
-
-
-DART_EXPORT Dart_Handle Dart_StringToBytes(Dart_Handle object,
- const uint8_t** bytes,
- intptr_t *length) {
- Isolate* isolate = Isolate::Current();
- DARTSCOPE(isolate);
- const String& str = Api::UnwrapStringHandle(isolate, object);
- if (str.IsNull()) {
- RETURN_TYPE_ERROR(isolate, object, String);
- }
- if (bytes == NULL) {
- RETURN_NULL_ERROR(bytes);
- }
- if (length == NULL) {
- RETURN_NULL_ERROR(length);
- }
- const char* cstring = str.ToCString();
- *length = Utf8::Length(str);
- uint8_t* result = Api::TopScope(isolate)->zone()->Alloc<uint8_t>(*length);
- if (result == NULL) {
- return Api::NewError("Unable to allocate memory");
- }
- memmove(result, cstring, *length);
- *bytes = result;
- return Api::Success(isolate);
-}
-
-
// --- Lists ---
« vm/benchmark_test.cc ('K') | « vm/custom_isolate_test.cc ('k') | vm/dart_api_impl_test.cc » ('j') | vm/object_test.cc » ('J')

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