|
static private Operand2Type ( JSToken operatorTok, |
||
| operatorTok | JSToken | |
| bbrType | ||
| Результат | ||
private void TranslateToILForNoOverloadCase(ILGenerator il, Type rtype)
{
Type lhtype = Convert.ToType(this.operand1.InferType(null));
Type operand2type = Convert.ToType(this.operand2.InferType(null));
Type bbrType = BitwiseBinary.ResultType(lhtype, operand2type, this.operatorTok);
this.operand1.TranslateToILPreSetPlusGet(il);
Convert.Emit(this, il, lhtype, bbrType, true);
this.operand2.TranslateToIL(il, operand2type);
Convert.Emit(this, il, operand2type, BitwiseBinary.Operand2Type(this.operatorTok, bbrType), true);
switch (this.operatorTok)
{
case JSToken.BitwiseAnd:
il.Emit(OpCodes.And);
break;
case JSToken.BitwiseOr:
il.Emit(OpCodes.Or);
break;
case JSToken.BitwiseXor:
il.Emit(OpCodes.Xor);
break;
case JSToken.LeftShift:
BitwiseBinary.TranslateToBitCountMask(il, bbrType, this.operand2);
il.Emit(OpCodes.Shl);
break;
case JSToken.RightShift:
BitwiseBinary.TranslateToBitCountMask(il, bbrType, this.operand2);
il.Emit(OpCodes.Shr);
break;
case JSToken.UnsignedRightShift:
BitwiseBinary.TranslateToBitCountMask(il, bbrType, this.operand2);
il.Emit(OpCodes.Shr_Un);
break;
default:
throw new JScriptException(JSError.InternalError, this.context);
}
if (rtype != Typeob.Void)
{
LocalBuilder result = il.DeclareLocal(bbrType);
il.Emit(OpCodes.Dup);
il.Emit(OpCodes.Stloc, result);
Convert.Emit(this, il, bbrType, lhtype);
this.operand1.TranslateToILSet(il);
il.Emit(OpCodes.Ldloc, result);
Convert.Emit(this, il, bbrType, rtype);
}
else
{
Convert.Emit(this, il, bbrType, lhtype);
this.operand1.TranslateToILSet(il);
}
}
private void TranslateToILForNoOverloadCase(ILGenerator il, Type rtype)
{
Type type = Microsoft.JScript.Convert.ToType(base.operand1.InferType(null));
Type type2 = Microsoft.JScript.Convert.ToType(base.operand2.InferType(null));
Type type3 = BitwiseBinary.ResultType(type, type2, base.operatorTok);
base.operand1.TranslateToILPreSetPlusGet(il);
Microsoft.JScript.Convert.Emit(this, il, type, type3, true);
base.operand2.TranslateToIL(il, type2);
Microsoft.JScript.Convert.Emit(this, il, type2, BitwiseBinary.Operand2Type(base.operatorTok, type3), true);
switch (base.operatorTok)
{
case JSToken.BitwiseOr:
il.Emit(OpCodes.Or);
break;
case JSToken.BitwiseXor:
il.Emit(OpCodes.Xor);
break;
case JSToken.BitwiseAnd:
il.Emit(OpCodes.And);
break;
case JSToken.LeftShift:
BitwiseBinary.TranslateToBitCountMask(il, type3, base.operand2);
il.Emit(OpCodes.Shl);
break;
case JSToken.RightShift:
BitwiseBinary.TranslateToBitCountMask(il, type3, base.operand2);
il.Emit(OpCodes.Shr);
break;
case JSToken.UnsignedRightShift:
BitwiseBinary.TranslateToBitCountMask(il, type3, base.operand2);
il.Emit(OpCodes.Shr_Un);
break;
default:
throw new JScriptException(JSError.InternalError, base.context);
}
if (rtype != Typeob.Void)
{
LocalBuilder local = il.DeclareLocal(type3);
il.Emit(OpCodes.Dup);
il.Emit(OpCodes.Stloc, local);
Microsoft.JScript.Convert.Emit(this, il, type3, type);
base.operand1.TranslateToILSet(il);
il.Emit(OpCodes.Ldloc, local);
Microsoft.JScript.Convert.Emit(this, il, type3, rtype);
}
else
{
Microsoft.JScript.Convert.Emit(this, il, type3, type);
base.operand1.TranslateToILSet(il);
}
}
internal override void TranslateToIL(ILGenerator il, Type rtype)
{
if (this.metaData == null)
{
Type bbrType = BitwiseBinary.ResultType(this.type1, this.type2, this.operatorTok);
if (Convert.IsPrimitiveNumericType(this.type1))
{
this.operand1.TranslateToIL(il, this.type1);
Convert.Emit(this, il, this.type1, bbrType, true);
}
else
{
this.operand1.TranslateToIL(il, Typeob.Double);
Convert.Emit(this, il, Typeob.Double, bbrType, true);
}
Type op2type = BitwiseBinary.Operand2Type(this.operatorTok, bbrType);
if (Convert.IsPrimitiveNumericType(this.type2))
{
this.operand2.TranslateToIL(il, this.type2);
Convert.Emit(this, il, this.type2, op2type, true);
}
else
{
this.operand2.TranslateToIL(il, Typeob.Double);
Convert.Emit(this, il, Typeob.Double, op2type, true);
}
switch (this.operatorTok)
{
case JSToken.BitwiseAnd:
il.Emit(OpCodes.And);
break;
case JSToken.BitwiseOr:
il.Emit(OpCodes.Or);
break;
case JSToken.BitwiseXor:
il.Emit(OpCodes.Xor);
break;
case JSToken.LeftShift:
BitwiseBinary.TranslateToBitCountMask(il, bbrType, this.operand2);
il.Emit(OpCodes.Shl);
break;
case JSToken.RightShift:
BitwiseBinary.TranslateToBitCountMask(il, bbrType, this.operand2);
il.Emit(OpCodes.Shr);
break;
case JSToken.UnsignedRightShift:
BitwiseBinary.TranslateToBitCountMask(il, bbrType, this.operand2);
il.Emit(OpCodes.Shr_Un);
break;
default:
throw new JScriptException(JSError.InternalError, this.context);
}
Convert.Emit(this, il, bbrType, rtype);
return;
}
if (this.metaData is MethodInfo)
{
MethodInfo oper = (MethodInfo)this.metaData;
ParameterInfo[] pars = oper.GetParameters();
this.operand1.TranslateToIL(il, pars[0].ParameterType);
this.operand2.TranslateToIL(il, pars[1].ParameterType);
il.Emit(OpCodes.Call, oper);
Convert.Emit(this, il, oper.ReturnType, rtype);
return;
}
//Getting here is just too bad. We do not know until the code runs whether or not to call an overloaded operator method.
//Compile operands to objects and devolve the decision making to run time thunks
il.Emit(OpCodes.Ldloc, (LocalBuilder)this.metaData);
this.operand1.TranslateToIL(il, Typeob.Object);
this.operand2.TranslateToIL(il, Typeob.Object);
il.Emit(OpCodes.Call, CompilerGlobals.evaluateBitwiseBinaryMethod);
Convert.Emit(this, il, Typeob.Object, rtype);
}