| static private IsPrimitiveNumericTypeFitForDouble ( IReflect ir ) : bool | ||
| ir | IReflect | |
| Результат | bool | |
internal override IReflect InferType(JSField inference_target)
{
MethodInfo oper;
if (this.type1 == null || inference_target != null)
{
oper = this.GetOperator(this.operand1.InferType(inference_target), this.operand2.InferType(inference_target));
}
else
{
oper = this.GetOperator(this.type1, this.type2);
}
if (oper != null)
{
this.metaData = oper;
return(oper.ReturnType);
}
if (this.type1 == Typeob.String || this.type2 == Typeob.String)
{
return(Typeob.String);
}
if (Convert.IsPrimitiveNumericType(this.type1))
{
if (Convert.IsPromotableTo(this.type2, this.type1) || ((this.operand2 is ConstantWrapper) && ((ConstantWrapper)this.operand2).IsAssignableTo(this.type1)))
{
return(this.type1);
}
else if (Convert.IsPrimitiveNumericType(this.type1) && Convert.IsPrimitiveNumericTypeFitForDouble(this.type2))
{
return(Typeob.Double);
}
}
return(Typeob.Object);
}
internal void SetInferredType(IReflect ir, AST expr)
{
this.isDefined = true;
if (this.type != null)
{
return; //The local variable has a type annotation.
}
if (this.outerField != null)
{
this.outerField.SetInferredType(ir, expr);
return;
}
if (Convert.IsPrimitiveNumericTypeFitForDouble(ir))
{
ir = Typeob.Double;
}
else if (ir == Typeob.Void)
{
ir = Typeob.Object;
}
if (this.inferred_type == null)
{
this.inferred_type = ir;
}
else
{
//Check to see if ir is compatible with this.inferred_type. If not, generalize this.inferred_type to Object and invalidate dependants.
if (ir == this.inferred_type)
{
return;
}
if (!Convert.IsPrimitiveNumericType(this.inferred_type) || !Convert.IsPrimitiveNumericType(ir) ||
!Convert.IsPromotableTo(ir, this.inferred_type))
{
this.inferred_type = Typeob.Object;
if (this.dependents != null)
{
for (int i = 0, n = this.dependents.Count; i < n; i++)
{
((JSLocalField)this.dependents[i]).SetInferredType(Typeob.Object, null);
}
}
}
}
}
internal override IReflect InferType(JSField inference_target)
{
Debug.Assert(Globals.TypeRefs.InReferenceContext(this.type1));
Debug.Assert(Globals.TypeRefs.InReferenceContext(this.type2));
MethodInfo oper;
if (this.type1 == null || inference_target != null)
{
oper = this.GetOperator(this.operand1.InferType(inference_target), this.operand2.InferType(inference_target));
}
else
{
oper = this.GetOperator(this.type1, this.type2);
}
if (oper != null)
{
this.metaData = oper;
return(oper.ReturnType);
}
if (this.type1 == Typeob.Char && this.operatorTok == JSToken.Minus)
{
TypeCode t2 = Type.GetTypeCode(this.type2);
if (Convert.IsPrimitiveNumericTypeCode(t2) || t2 == TypeCode.Boolean)
{
return(Typeob.Char);
}
else if (t2 == TypeCode.Char)
{
return(Typeob.Int32);
}
}
if (Convert.IsPrimitiveNumericType(this.type1))
{
if (Convert.IsPromotableTo(this.type2, this.type1) || ((this.operand2 is ConstantWrapper) && ((ConstantWrapper)this.operand2).IsAssignableTo(this.type1)))
{
return(this.type1);
}
else if (Convert.IsPrimitiveNumericType(this.type1) && Convert.IsPrimitiveNumericTypeFitForDouble(this.type2))
{
return(Typeob.Double);
}
}
return(Typeob.Object);
}
internal override IReflect InferType(JSField inference_target)
{
MethodInfo oper;
if (this.type1 == null || inference_target != null)
{
oper = this.GetOperator(this.operand1.InferType(inference_target), this.operand2.InferType(inference_target));
}
else
{
oper = this.GetOperator(this.type1, this.type2);
}
if (oper != null)
{
this.metaData = oper;
return(oper.ReturnType);
}
if (this.type1 == Typeob.Char && this.operatorTok == JSToken.Minus)
{
TypeCode t2 = Type.GetTypeCode(this.type2);
if (Convert.IsPrimitiveNumericTypeCode(t2) || t2 == TypeCode.Boolean)
{
return(Typeob.Char);
}
else if (t2 == TypeCode.Char)
{
return(Typeob.Int32);
}
}
if ((Convert.IsPrimitiveNumericTypeFitForDouble(this.type1) || Typeob.JSObject.IsAssignableFrom(this.type1)) &&
(Convert.IsPrimitiveNumericTypeFitForDouble(this.type2) || Typeob.JSObject.IsAssignableFrom(this.type2)))
{
return(Typeob.Double);
}
else
{
return(Typeob.Object);
}
}
internal override IReflect InferType(JSField inference_target)
{
Debug.Assert(Globals.TypeRefs.InReferenceContext(this.type1));
Debug.Assert(Globals.TypeRefs.InReferenceContext(this.type2));
MethodInfo oper;
if (this.type1 == null || inference_target != null)
{
oper = this.GetOperator(this.operand1.InferType(inference_target), this.operand2.InferType(inference_target));
}
else
{
oper = this.GetOperator(this.type1, this.type2);
}
if (oper != null)
{
this.metaData = oper;
return(oper.ReturnType);
}
if (this.type1 == Typeob.String || this.type2 == Typeob.String)
{
return(Typeob.String);
}
else if (this.type1 == Typeob.Char && this.type2 == Typeob.Char)
{
return(Typeob.String);
}
else if (Convert.IsPrimitiveNumericTypeFitForDouble(this.type1))
{
if (this.type2 == Typeob.Char)
{
return(Typeob.Char);
}
else if (Convert.IsPrimitiveNumericTypeFitForDouble(this.type2))
{
return(Typeob.Double);
}
else
{
return(Typeob.Object);
}
}
else if (Convert.IsPrimitiveNumericTypeFitForDouble(this.type2))
{
if (this.type1 == Typeob.Char)
{
return(Typeob.Char);
}
else if (Convert.IsPrimitiveNumericTypeFitForDouble(this.type1))
{
return(Typeob.Double);
}
else
{
return(Typeob.Object);
}
}
else if (this.type1 == Typeob.Boolean && this.type2 == Typeob.Char)
{
return(Typeob.Char);
}
else if (this.type1 == Typeob.Char && this.type2 == Typeob.Boolean)
{
return(Typeob.Char);
}
else
{
return(Typeob.Object);
}
}