C++ asmjsmodule::Global类代码示例

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本文整理汇总了C++中asmjsmodule::Global类的典型用法代码示例。如果您正苦于以下问题：C++ Global类的具体用法？C++ Global怎么用？C++ Global使用的例子？那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。

在下文中一共展示了Global类的8个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于我们的系统推荐出更棒的C++代码示例。

示例1: v

static bool
ValidateAtomicsBuiltinFunction(JSContext *cx, AsmJSModule::Global &global, HandleValue globalVal)
{
    RootedValue v(cx);
    if (!GetDataProperty(cx, globalVal, cx->names().Atomics, &v))
        return false;
    RootedPropertyName field(cx, global.atomicsName());
    if (!GetDataProperty(cx, v, field, &v))
        return false;

    Native native = nullptr;
    switch (global.atomicsBuiltinFunction()) {
      case AsmJSAtomicsBuiltin_compareExchange: native = atomics_compareExchange; break;
      case AsmJSAtomicsBuiltin_load: native = atomics_load; break;
      case AsmJSAtomicsBuiltin_store: native = atomics_store; break;
      case AsmJSAtomicsBuiltin_fence: native = atomics_fence; break;
      case AsmJSAtomicsBuiltin_add: native = atomics_add; break;
      case AsmJSAtomicsBuiltin_sub: native = atomics_sub; break;
      case AsmJSAtomicsBuiltin_and: native = atomics_and; break;
      case AsmJSAtomicsBuiltin_or: native = atomics_or; break;
      case AsmJSAtomicsBuiltin_xor: native = atomics_xor; break;
    }

    if (!IsNativeFunction(v, native))
        return LinkFail(cx, "bad Atomics.* builtin function");

    return true;
}

开发者ID:arroway，项目名称:gecko-dev，代码行数:28，代码来源:AsmJSLink.cpp

示例2: field

static bool
ValidateConstant(JSContext *cx, AsmJSModule::Global &global, HandleValue globalVal)
{
    RootedPropertyName field(cx, global.constantName());
    RootedValue v(cx, globalVal);

    if (global.constantKind() == AsmJSModule::Global::MathConstant) {
        if (!GetDataProperty(cx, v, cx->names().Math, &v))
            return false;
    }

    if (!GetDataProperty(cx, v, field, &v))
        return false;
    if (!v.isNumber())
        return LinkFail(cx, "math / global constant value needs to be a number");

    // NaN != NaN
    if (IsNaN(global.constantValue())) {
        if (!IsNaN(v.toNumber()))
            return LinkFail(cx, "global constant value needs to be NaN");
    } else {
        if (v.toNumber() != global.constantValue())
            return LinkFail(cx, "global constant value mismatch");
    }

    return true;
}

开发者ID:，项目名称:，代码行数:27，代码来源:

示例3: v

static bool
ValidateMathBuiltin(JSContext *cx, AsmJSModule::Global &global, HandleValue globalVal)
{
    RootedValue v(cx);
    if (!GetDataProperty(cx, globalVal, cx->names().Math, &v))
        return false;
    RootedPropertyName field(cx, global.mathName());
    if (!GetDataProperty(cx, v, field, &v))
        return false;

    Native native = nullptr;
    switch (global.mathBuiltin()) {
      case AsmJSMathBuiltin_sin: native = math_sin; break;
      case AsmJSMathBuiltin_cos: native = math_cos; break;
      case AsmJSMathBuiltin_tan: native = math_tan; break;
      case AsmJSMathBuiltin_asin: native = math_asin; break;
      case AsmJSMathBuiltin_acos: native = math_acos; break;
      case AsmJSMathBuiltin_atan: native = math_atan; break;
      case AsmJSMathBuiltin_ceil: native = math_ceil; break;
      case AsmJSMathBuiltin_floor: native = math_floor; break;
      case AsmJSMathBuiltin_exp: native = math_exp; break;
      case AsmJSMathBuiltin_log: native = math_log; break;
      case AsmJSMathBuiltin_pow: native = js_math_pow; break;
      case AsmJSMathBuiltin_sqrt: native = js_math_sqrt; break;
      case AsmJSMathBuiltin_abs: native = js_math_abs; break;
      case AsmJSMathBuiltin_atan2: native = math_atan2; break;
      case AsmJSMathBuiltin_imul: native = math_imul; break;
      case AsmJSMathBuiltin_fround: native = math_fround; break;
    }

    if (!IsNativeFunction(v, native))
        return LinkFail(cx, "bad Math.* builtin");

    return true;
}

开发者ID:，项目名称:，代码行数:35，代码来源:

示例4: v

static bool
ValidateSimdType(JSContext *cx, AsmJSModule::Global &global, HandleValue globalVal,
                 MutableHandleValue out)
{
    RootedValue v(cx);
    if (!GetDataProperty(cx, globalVal, cx->names().SIMD, &v))
        return false;

    AsmJSSimdType type;
    if (global.which() == AsmJSModule::Global::SimdCtor)
        type = global.simdCtorType();
    else
        type = global.simdOperationType();

    RootedPropertyName simdTypeName(cx, SimdTypeToName(cx, type));
    if (!GetDataProperty(cx, v, simdTypeName, &v))
        return false;

    if (!v.isObject())
        return LinkFail(cx, "bad SIMD type");

    RootedObject simdDesc(cx, &v.toObject());
    if (!simdDesc->is<SimdTypeDescr>())
        return LinkFail(cx, "bad SIMD type");

    if (AsmJSSimdTypeToTypeDescrType(type) != simdDesc->as<SimdTypeDescr>().type())
        return LinkFail(cx, "bad SIMD type");

    out.set(v);
    return true;
}

开发者ID:stspyder，项目名称:mozjs，代码行数:31，代码来源:AsmJSLink.cpp

示例5: field

static bool
ValidateArrayView(JSContext *cx, AsmJSModule::Global &global, HandleValue globalVal, bool isShared)
{
    RootedPropertyName field(cx, global.maybeViewName());
    if (!field)
        return true;

    RootedValue v(cx);
    if (!GetDataProperty(cx, globalVal, field, &v))
        return false;

    bool tac = IsTypedArrayConstructor(v, global.viewType());
    bool stac = IsSharedTypedArrayConstructor(v, global.viewType());
    if (!((tac || stac) && stac == isShared))
        return LinkFail(cx, "bad typed array constructor");

    return true;
}

开发者ID:stspyder，项目名称:mozjs，代码行数:18，代码来源:AsmJSLink.cpp

示例6: field

static bool
ValidateGlobalConstant(JSContext *cx, AsmJSModule::Global global, HandleValue globalVal)
{
    RootedPropertyName field(cx, global.constantName());
    RootedValue v(cx);
    if (!GetProperty(cx, globalVal, field, &v))
        return false;

    if (!v.isNumber())
        return LinkFail(cx, "global constant value needs to be a number");

    // NaN != NaN
    if (MOZ_DOUBLE_IS_NaN(global.constantValue())) {
        if (!MOZ_DOUBLE_IS_NaN(v.toNumber()))
            return LinkFail(cx, "global constant value needs to be NaN");
    } else {
        if (v.toNumber() != global.constantValue())
            return LinkFail(cx, "global constant value mismatch");
    }

    return true;
}

开发者ID:dardevelin，项目名称:mozilla-central，代码行数:22，代码来源:AsmJSLink.cpp

示例7: LinkFail

static bool
DynamicallyLinkModule(JSContext *cx, CallArgs args, AsmJSModule &module)
{
    if (module.isLinked())
        return LinkFail(cx, "As a temporary limitation, modules cannot be linked more than "
                            "once. This limitation should be removed in a future release. To "
                            "work around this, compile a second module (e.g., using the "
                            "Function constructor).");

    RootedValue globalVal(cx, UndefinedValue());
    if (args.length() > 0)
        globalVal = args[0];

    RootedValue importVal(cx, UndefinedValue());
    if (args.length() > 1)
        importVal = args[1];

    RootedValue bufferVal(cx, UndefinedValue());
    if (args.length() > 2)
        bufferVal = args[2];

    Rooted<ArrayBufferObject*> heap(cx);
    if (module.hasArrayView()) {
        if (!IsTypedArrayBuffer(bufferVal))
            return LinkFail(cx, "bad ArrayBuffer argument");

        heap = &bufferVal.toObject().asArrayBuffer();

        if (!IsPowerOfTwo(heap->byteLength()) || heap->byteLength() < AsmJSAllocationGranularity)
            return LinkFail(cx, "ArrayBuffer byteLength must be a power of two greater than or equal to 4096");

        if (!ArrayBufferObject::prepareForAsmJS(cx, heap))
            return LinkFail(cx, "Unable to prepare ArrayBuffer for asm.js use");

#if defined(JS_CPU_X86)
        void *heapOffset = (void*)heap->dataPointer();
        void *heapLength = (void*)heap->byteLength();
        uint8_t *code = module.functionCode();
        for (unsigned i = 0; i < module.numHeapAccesses(); i++) {
            const AsmJSHeapAccess &access = module.heapAccess(i);
            JSC::X86Assembler::setPointer(access.patchLengthAt(code), heapLength);
            JSC::X86Assembler::setPointer(access.patchOffsetAt(code), heapOffset);
        }
#endif
    }

    AutoObjectVector ffis(cx);
    if (!ffis.resize(module.numFFIs()))
        return false;

    for (unsigned i = 0; i < module.numGlobals(); i++) {
        AsmJSModule::Global global = module.global(i);
        switch (global.which()) {
          case AsmJSModule::Global::Variable:
            if (!ValidateGlobalVariable(cx, module, global, importVal))
                return false;
            break;
          case AsmJSModule::Global::FFI:
            if (!ValidateFFI(cx, global, importVal, &ffis))
                return false;
            break;
          case AsmJSModule::Global::ArrayView:
            if (!ValidateArrayView(cx, global, globalVal, bufferVal))
                return false;
            break;
          case AsmJSModule::Global::MathBuiltin:
            if (!ValidateMathBuiltin(cx, global, globalVal))
                return false;
            break;
          case AsmJSModule::Global::Constant:
            if (!ValidateGlobalConstant(cx, global, globalVal))
                return false;
            break;
        }
    }

    for (unsigned i = 0; i < module.numExits(); i++)
        module.exitIndexToGlobalDatum(i).fun = ffis[module.exit(i).ffiIndex()]->toFunction();

    module.setIsLinked(heap);
    return true;
}

开发者ID:dardevelin，项目名称:mozilla-central，代码行数:82，代码来源:AsmJSLink.cpp

示例8: field

static bool
ValidateGlobalVariable(JSContext* cx, const AsmJSModule& module, AsmJSModule::Global& global,
                       HandleValue importVal)
{
    void* datum = module.globalData() + global.varGlobalDataOffset();

    switch (global.varInitKind()) {
      case AsmJSModule::Global::InitConstant: {
        Val v = global.varInitVal();
        switch (v.type()) {
          case ValType::I32:
            *(int32_t*)datum = v.i32();
            break;
          case ValType::I64:
            MOZ_CRASH("int64");
          case ValType::F32:
            *(float*)datum = v.f32();
            break;
          case ValType::F64:
            *(double*)datum = v.f64();
            break;
          case ValType::I32x4:
            memcpy(datum, v.i32x4(), Simd128DataSize);
            break;
          case ValType::F32x4:
            memcpy(datum, v.f32x4(), Simd128DataSize);
            break;
        }
        break;
      }

      case AsmJSModule::Global::InitImport: {
        RootedPropertyName field(cx, global.varImportField());
        RootedValue v(cx);
        if (!GetDataProperty(cx, importVal, field, &v))
            return false;

        if (!v.isPrimitive() && !HasPureCoercion(cx, v))
            return LinkFail(cx, "Imported values must be primitives");

        switch (global.varInitImportType()) {
          case ValType::I32:
            if (!ToInt32(cx, v, (int32_t*)datum))
                return false;
            break;
          case ValType::I64:
            MOZ_CRASH("int64");
          case ValType::F32:
            if (!RoundFloat32(cx, v, (float*)datum))
                return false;
            break;
          case ValType::F64:
            if (!ToNumber(cx, v, (double*)datum))
                return false;
            break;
          case ValType::I32x4: {
            SimdConstant simdConstant;
            if (!ToSimdConstant<Int32x4>(cx, v, &simdConstant))
                return false;
            memcpy(datum, simdConstant.asInt32x4(), Simd128DataSize);
            break;
          }
          case ValType::F32x4: {
            SimdConstant simdConstant;
            if (!ToSimdConstant<Float32x4>(cx, v, &simdConstant))
                return false;
            memcpy(datum, simdConstant.asFloat32x4(), Simd128DataSize);
            break;
          }
        }
        break;
      }
    }

    return true;
}

开发者ID:AlexOreshkevich，项目名称:mongo，代码行数:76，代码来源:AsmJSLink.cpp

注：本文中的asmjsmodule::Global类示例由纯净天空整理自Github/MSDocs等源码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。