public static BinaryOperatorAnalysisResult Inapplicable(BinaryOperatorSignature signature, Conversion leftConversion, Conversion rightConversion)
{
return new BinaryOperatorAnalysisResult(OperatorAnalysisResultKind.Inapplicable, signature, leftConversion, rightConversion);
}
private BetterResult BetterOperator(BinaryOperatorSignature op1, BinaryOperatorSignature op2, BoundExpression left, BoundExpression right)
{
var leftBetter = BetterConversionFromExpression(left, op1.LeftType, op2.LeftType);
var rightBetter = BetterConversionFromExpression(right, op1.RightType, op2.RightType);
if (leftBetter == BetterResult.Neither)
{
return rightBetter;
}
if (rightBetter == BetterResult.Neither)
{
return leftBetter;
}
if (leftBetter == rightBetter)
{
return leftBetter;
}
return BetterResult.Neither;
}
private BinaryOperatorAnalysisResult(OperatorAnalysisResultKind kind, BinaryOperatorSignature signature, Conversion leftConversion, Conversion rightConversion)
: this()
{
this.Kind = kind;
this.Signature = signature;
this.LeftConversion = leftConversion;
this.RightConversion = rightConversion;
}
private bool IsApplicable(BinaryOperatorSignature binaryOperator, BoundExpression left, BoundExpression right)
{
return
Conversions.ClassifyConversion(left, binaryOperator.LeftType).IsImplicit &&
Conversions.ClassifyConversion(right, binaryOperator.RightType).IsImplicit;
}
