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pjs
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using JSValue::tag to do simple operand validation.

This commit is contained in:
beard%netscape.com 2000-04-28 05:43:33 +00:00
Родитель 479e473d4d
Коммит 99956a6429
2 изменённых файлов: 54 добавлений и 30 удалений
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42
js/js2/interpreter.cpp
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@ -171,7 +171,7 @@ JSValue Context::interpret(ICodeModule* iCode, const JSValues& args)
case RETURN_VOID:
{
JSValue result(NotARegister);
JSValue result;
Linkage *linkage = mLinkage;
if (!linkage)
return result;
@ -187,7 +187,7 @@ JSValue Context::interpret(ICodeModule* iCode, const JSValues& args)
case RETURN:
{
Return* ret = static_cast<Return*>(instruction);
JSValue result(NotARegister);
JSValue result;
if (op1(ret) != NotARegister)
result = (*registers)[op1(ret)];
Linkage* linkage = mLinkage;
@ -222,41 +222,53 @@ JSValue Context::interpret(ICodeModule* iCode, const JSValues& args)
case NEW_OBJECT:
{
NewObject* no = static_cast<NewObject*>(instruction);
(*registers)[dst(no)].object = new JSObject();
(*registers)[dst(no)] = JSValue(new JSObject());
}
break;
case NEW_ARRAY:
{
NewArray* na = static_cast<NewArray*>(instruction);
(*registers)[dst(na)].array = new JSArray();
(*registers)[dst(na)] = JSValue(new JSArray());
}
break;
case GET_PROP:
{
GetProp* gp = static_cast<GetProp*>(instruction);
JSObject* object = (*registers)[src1(gp)].object;
(*registers)[dst(gp)] = object->getProperty(*src2(gp));
JSValue& value = (*registers)[src1(gp)];
if (value.tag == JSValue::object_tag) {
JSObject* object = value.object;
(*registers)[dst(gp)] = object->getProperty(*src2(gp));
}
}
break;
case SET_PROP:
{
SetProp* sp = static_cast<SetProp*>(instruction);
JSObject* object = (*registers)[dst(sp)].object;
object->setProperty(*src1(sp), (*registers)[src2(sp)]);
JSValue& value = (*registers)[dst(sp)];
if (value.tag == JSValue::object_tag) {
JSObject* object = value.object;
object->setProperty(*src1(sp), (*registers)[src2(sp)]);
}
}
break;
case GET_ELEMENT:
{
GetElement* ge = static_cast<GetElement*>(instruction);
JSArray* array = (*registers)[src1(ge)].array;
(*registers)[dst(ge)] = (*array)[(*registers)[src2(ge)]];
JSValue& value = (*registers)[src1(ge)];
if (value.tag == JSValue::array_tag) {
JSArray* array = value.array;
(*registers)[dst(ge)] = (*array)[(*registers)[src2(ge)]];
}
}
break;
case SET_ELEMENT:
{
SetElement* se = static_cast<SetElement*>(instruction);
JSArray* array = (*registers)[dst(se)].array;
(*array)[(*registers)[src1(se)]] = (*registers)[src2(se)];
JSValue& value = (*registers)[dst(se)];
if (value.tag == JSValue::array_tag) {
JSArray* array = value.array;
(*array)[(*registers)[src1(se)]] = (*registers)[src2(se)];
}
}
break;
case LOAD_IMMEDIATE:
@ -377,14 +389,14 @@ JSValue Context::interpret(ICodeModule* iCode, const JSValues& args)
float64 diff =
((*registers)[src1(cmp)].f64 -
(*registers)[src2(cmp)].f64);
(*registers)[dst(cmp)].i32 =
(diff == 0.0 ? 0 : (diff > 0.0 ? 1 : -1));
(*registers)[dst(cmp)] =
JSValue(int32(diff == 0.0 ? 0 : (diff > 0.0 ? 1 : -1)));
}
break;
case NOT:
{
Not* nt = static_cast<Not*>(instruction);
(*registers)[dst(nt)].i32 = !(*registers)[src1(nt)].i32;
(*registers)[dst(nt)] = JSValue(int32(!(*registers)[src1(nt)].i32));
}
break;

42
js2/src/interpreter.cpp
Просмотреть файл

@ -171,7 +171,7 @@ JSValue Context::interpret(ICodeModule* iCode, const JSValues& args)
case RETURN_VOID:
{
JSValue result(NotARegister);
JSValue result;
Linkage *linkage = mLinkage;
if (!linkage)
return result;
@ -187,7 +187,7 @@ JSValue Context::interpret(ICodeModule* iCode, const JSValues& args)
case RETURN:
{
Return* ret = static_cast<Return*>(instruction);
JSValue result(NotARegister);
JSValue result;
if (op1(ret) != NotARegister)
result = (*registers)[op1(ret)];
Linkage* linkage = mLinkage;
@ -222,41 +222,53 @@ JSValue Context::interpret(ICodeModule* iCode, const JSValues& args)
case NEW_OBJECT:
{
NewObject* no = static_cast<NewObject*>(instruction);
(*registers)[dst(no)].object = new JSObject();
(*registers)[dst(no)] = JSValue(new JSObject());
}
break;
case NEW_ARRAY:
{
NewArray* na = static_cast<NewArray*>(instruction);
(*registers)[dst(na)].array = new JSArray();
(*registers)[dst(na)] = JSValue(new JSArray());
}
break;
case GET_PROP:
{
GetProp* gp = static_cast<GetProp*>(instruction);
JSObject* object = (*registers)[src1(gp)].object;
(*registers)[dst(gp)] = object->getProperty(*src2(gp));
JSValue& value = (*registers)[src1(gp)];
if (value.tag == JSValue::object_tag) {
JSObject* object = value.object;
(*registers)[dst(gp)] = object->getProperty(*src2(gp));
}
}
break;
case SET_PROP:
{
SetProp* sp = static_cast<SetProp*>(instruction);
JSObject* object = (*registers)[dst(sp)].object;
object->setProperty(*src1(sp), (*registers)[src2(sp)]);
JSValue& value = (*registers)[dst(sp)];
if (value.tag == JSValue::object_tag) {
JSObject* object = value.object;
object->setProperty(*src1(sp), (*registers)[src2(sp)]);
}
}
break;
case GET_ELEMENT:
{
GetElement* ge = static_cast<GetElement*>(instruction);
JSArray* array = (*registers)[src1(ge)].array;
(*registers)[dst(ge)] = (*array)[(*registers)[src2(ge)]];
JSValue& value = (*registers)[src1(ge)];
if (value.tag == JSValue::array_tag) {
JSArray* array = value.array;
(*registers)[dst(ge)] = (*array)[(*registers)[src2(ge)]];
}
}
break;
case SET_ELEMENT:
{
SetElement* se = static_cast<SetElement*>(instruction);
JSArray* array = (*registers)[dst(se)].array;
(*array)[(*registers)[src1(se)]] = (*registers)[src2(se)];
JSValue& value = (*registers)[dst(se)];
if (value.tag == JSValue::array_tag) {
JSArray* array = value.array;
(*array)[(*registers)[src1(se)]] = (*registers)[src2(se)];
}
}
break;
case LOAD_IMMEDIATE:
@ -377,14 +389,14 @@ JSValue Context::interpret(ICodeModule* iCode, const JSValues& args)
float64 diff =
((*registers)[src1(cmp)].f64 -
(*registers)[src2(cmp)].f64);
(*registers)[dst(cmp)].i32 =
(diff == 0.0 ? 0 : (diff > 0.0 ? 1 : -1));
(*registers)[dst(cmp)] =
JSValue(int32(diff == 0.0 ? 0 : (diff > 0.0 ? 1 : -1)));
}
break;
case NOT:
{
Not* nt = static_cast<Not*>(instruction);
(*registers)[dst(nt)].i32 = !(*registers)[src1(nt)].i32;
(*registers)[dst(nt)] = JSValue(int32(!(*registers)[src1(nt)].i32));
}
break;