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;
}
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;
}