本文整理汇总了C#中SemanticModel.GetSpeculativeTypeInfo方法的典型用法代码示例。如果您正苦于以下问题：C# SemanticModel.GetSpeculativeTypeInfo方法的具体用法？C# SemanticModel.GetSpeculativeTypeInfo怎么用？C# SemanticModel.GetSpeculativeTypeInfo使用的例子？那么恭喜您, 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SemanticModel的用法示例。
在下文中一共展示了SemanticModel.GetSpeculativeTypeInfo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: CastIfPossible
/// <summary>
/// Adds to <paramref name="targetType"/> if it does not contain an anonymous
/// type and binds to the same type at the given <paramref name="position"/>.
/// </summary>
public static ExpressionSyntax CastIfPossible(
this ExpressionSyntax expression,
ITypeSymbol targetType,
int position,
SemanticModel semanticModel,
out bool wasCastAdded)
{
wasCastAdded = false;
if (targetType.ContainsAnonymousType())
{
return expression;
}
if (targetType.Kind == SymbolKind.DynamicType)
{
targetType = semanticModel.Compilation.GetSpecialType(SpecialType.System_Object);
}
var typeSyntax = targetType.GenerateTypeSyntax();
var type = semanticModel.GetSpeculativeTypeInfo(
position,
typeSyntax,
SpeculativeBindingOption.BindAsTypeOrNamespace).Type;
if (!targetType.Equals(type))
{
return expression;
}
var castExpression = expression.Cast(targetType);
// Ensure that inserting the cast doesn't change the semantics.
var specAnalyzer = new SpeculationAnalyzer(expression, castExpression, semanticModel, CancellationToken.None);
var speculativeSemanticModel = specAnalyzer.SpeculativeSemanticModel;
if (speculativeSemanticModel == null)
{
return expression;
}
var speculatedCastExpression = (CastExpressionSyntax)specAnalyzer.ReplacedExpression;
if (!speculatedCastExpression.IsUnnecessaryCast(speculativeSemanticModel, CancellationToken.None))
{
return expression;
}
wasCastAdded = true;
return castExpression;
}示例2: GetRangeVariableType
protected override ITypeSymbol GetRangeVariableType(SemanticModel model, IRangeVariableSymbol symbol)
{
var info = model.GetSpeculativeTypeInfo(this.SelectionResult.FinalSpan.Start, SyntaxFactory.ParseName(symbol.Name), SpeculativeBindingOption.BindAsExpression);
if (Microsoft.CodeAnalysis.Shared.Extensions.ISymbolExtensions.IsErrorType(info.Type))
{
return null;
}
return info.Type == null || info.Type.SpecialType == Microsoft.CodeAnalysis.SpecialType.System_Object
? info.Type
: info.ConvertedType;
}