Exemple #1
0
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;
}