本文整理汇总了C#中ExpressionSyntax.GetFirstToken方法的典型用法代码示例。如果您正苦于以下问题：C# ExpressionSyntax.GetFirstToken方法的具体用法？C# ExpressionSyntax.GetFirstToken怎么用？C# ExpressionSyntax.GetFirstToken使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类ExpressionSyntax的用法示例。
在下文中一共展示了ExpressionSyntax.GetFirstToken方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: FindNearestTupleConstructionWithInferrableType
IEnumerable<INamedTypeSymbol> FindNearestTupleConstructionWithInferrableType(SyntaxNode root, SemanticModel semanticModel, int position, SignatureHelpTriggerInfo triggerInfo,
ITypeInferenceService typeInferrer, ISyntaxFactsService syntaxFacts, CancellationToken cancellationToken, out ExpressionSyntax targetExpression)
{
// Walk upward through TupleExpressionSyntax/ParenthsizedExpressionSyntax looking for a
// place where we can infer a tuple type.
ParenthesizedExpressionSyntax parenthesizedExpression = null;
while (TryGetTupleExpression(triggerInfo.TriggerReason, root, position, syntaxFacts, cancellationToken, out var tupleExpression) ||
TryGetParenthesizedExpression(triggerInfo.TriggerReason, root, position, syntaxFacts, cancellationToken, out parenthesizedExpression))
{
targetExpression = (ExpressionSyntax)tupleExpression ?? parenthesizedExpression;
var inferredTypes = typeInferrer.InferTypes(semanticModel, targetExpression.SpanStart, cancellationToken);
var tupleTypes = inferredTypes.Where(t => t.IsTupleType).OfType<INamedTypeSymbol>().ToList();
if (tupleTypes.Any())
{
return tupleTypes;
}
position = targetExpression.GetFirstToken().SpanStart;
}
targetExpression = null;
return null;
}示例2: RewriteExtensionMethodInvocation
private InvocationExpressionSyntax RewriteExtensionMethodInvocation(
InvocationExpressionSyntax originalNode,
ExpressionSyntax thisExpression,
IMethodSymbol reducedExtensionMethod,
SymbolDisplayFormat symbolDisplayFormat)
{
var containingType = reducedExtensionMethod.ContainingType.ToDisplayString(symbolDisplayFormat);
var newMemberAccess = SyntaxFactory.MemberAccessExpression(SyntaxKind.SimpleMemberAccessExpression, SyntaxFactory.ParseExpression(containingType), ((MemberAccessExpressionSyntax)originalNode.Expression).OperatorToken, ((MemberAccessExpressionSyntax)originalNode.Expression).Name)
.WithLeadingTrivia(thisExpression.GetFirstToken().LeadingTrivia);
// Copies the annotation for the member access expression
newMemberAccess = originalNode.Expression.CopyAnnotationsTo(newMemberAccess).WithAdditionalAnnotations(Simplifier.Annotation);
var thisArgument = SyntaxFactory.Argument(thisExpression).WithLeadingTrivia(SyntaxTriviaList.Empty);
// Copies the annotation for the left hand side of the member access expression to the first argument in the complexified form
thisArgument = ((MemberAccessExpressionSyntax)originalNode.Expression).Expression.CopyAnnotationsTo(thisArgument);
var arguments = originalNode.ArgumentList.Arguments.Insert(0, thisArgument);
var replacementNode = SyntaxFactory.InvocationExpression(
newMemberAccess,
originalNode.ArgumentList.WithArguments(arguments));
// This Annotation copy is for the InvocationExpression
return originalNode.CopyAnnotationsTo(replacementNode).WithAdditionalAnnotations(Simplifier.Annotation, Formatter.Annotation);
}