lvfulong
65 lines
1.9 KiB
C++
65 lines
1.9 KiB
C++
/**
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@file JSCUtil.cpp
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@brief
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@author James
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@version 1.0
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@date 2017_11_29
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*/
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#include "JSCUtil.h"
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#include <JavaScriptCore/JavaScriptCore.h>
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#include <vector>
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namespace laya
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{
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JSContextRef JSCUtil::s_ctx = NULL;
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char* JSCUtil::toCString(JSContextRef ctx,JSStringRef value)
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{
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int len = JSStringGetMaximumUTF8CStringSize(value);
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static std::vector<char> utf8str;
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utf8str.resize(len);
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JSStringGetUTF8CString(value, &utf8str[0], len);
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return &utf8str[0];
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}
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char* JSCUtil::toCString(JSContextRef ctx,JSValueRef value)
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{
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assert(JSValueIsString(ctx, value));
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JSStringRef str = JSValueToStringCopy(ctx, value, nullptr);
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char* ret = toCString(ctx, str);
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JSStringRelease(str);
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return ret;
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}
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bool JSCUtil::extractJSAB(JSContextRef ctx,JSValueRef ab, char*& data, int& len)
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{
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JSObjectRef arrayObj = JSValueToObject(ctx, ab, NULL);
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JSTypedArrayType arrayType = JSValueGetTypedArrayType(ctx, ab, NULL);
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switch (arrayType)
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{
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case kJSTypedArrayTypeNone:
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{
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data = NULL;
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len = 0;
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return false;
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}
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break;
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case kJSTypedArrayTypeArrayBuffer:
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{
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data = (char*)JSObjectGetArrayBufferBytesPtr(ctx, arrayObj, NULL);
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len = (int)JSObjectGetArrayBufferByteLength(ctx, arrayObj, NULL);
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return true;
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}
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break;
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default:
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{
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data = (char*)JSObjectGetTypedArrayBytesPtr(ctx, arrayObj, NULL) + JSObjectGetTypedArrayByteOffset(ctx, arrayObj, NULL);
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len = (int)JSObjectGetTypedArrayByteLength(ctx, arrayObj, NULL);
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return true;
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}
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break;
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}
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}
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}
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//------------------------------------------------------------------------------
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//-----------------------------END FILE--------------------------------
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