本文整理汇总了C#中Microsoft.CodeAnalysis.CSharp.Syntax.ForEachStatementSyntax.WithExpression方法的典型用法代码示例。如果您正苦于以下问题：C# ForEachStatementSyntax.WithExpression方法的具体用法？C# ForEachStatementSyntax.WithExpression怎么用？C# ForEachStatementSyntax.WithExpression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Microsoft.CodeAnalysis.CSharp.Syntax.ForEachStatementSyntax的用法示例。
在下文中一共展示了ForEachStatementSyntax.WithExpression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: ConvertIfToLINQ
private async Task<Document> ConvertIfToLINQ(Document document, IfStatementSyntax ifStatement, ForEachStatementSyntax foreachStatement, CancellationToken c)
{
var generator = SyntaxGenerator.GetGenerator(document);
var oldVariables = ifStatement.Condition.DescendantNodesAndSelf().OfType<IdentifierNameSyntax>().Where(x => x.Identifier.Text == foreachStatement.Identifier.Text);
var whereCall = generator.InvocationExpression(
generator.MemberAccessExpression(foreachStatement.Expression, "Where"),
generator.Argument(
generator.ValueReturningLambdaExpression(
new[] { generator.LambdaParameter("x") },
ifStatement.Condition.ReplaceNodes(oldVariables, (x, y) => generator.IdentifierName("x")))));
var root = await document.GetSyntaxRootAsync(c);
var newFeStatement = foreachStatement
.WithExpression((ExpressionSyntax)whereCall)
.WithStatement(ifStatement.Statement.WithAdditionalAnnotations(Formatter.Annotation));
var newRoot = root.ReplaceNode(foreachStatement, newFeStatement);
return document.WithSyntaxRoot(newRoot);
}示例2: ConvertVariableAssignmentToLINQ
private async Task<Document> ConvertVariableAssignmentToLINQ(Document document, VariableDeclaratorSyntax variableDeclarator, ForEachStatementSyntax foreachStatement, CancellationToken c)
{
var generator = SyntaxGenerator.GetGenerator(document);
var oldVariableName = foreachStatement.Identifier.Text;
var newVariableName = variableDeclarator.Identifier.Text;
var oldVariables = variableDeclarator.Initializer.Value.DescendantNodesAndSelf().OfType<IdentifierNameSyntax>().Where(x => x.Identifier.Text == oldVariableName);
var selectCall = generator.InvocationExpression(
generator.MemberAccessExpression(foreachStatement.Expression, "Select"),
generator.Argument(
generator.ValueReturningLambdaExpression(
new[] { generator.LambdaParameter("x") },
variableDeclarator.Initializer.Value.ReplaceNodes(oldVariables, (x, y) => generator.IdentifierName("x")))));
var root = await document.GetSyntaxRootAsync(c);
Debug.WriteLine(variableDeclarator.Parent);
var restOfForeachBody = foreachStatement.Statement
.RemoveNode(variableDeclarator, SyntaxRemoveOptions.AddElasticMarker)
.WithAdditionalAnnotations(Formatter.Annotation);
var newFeStatement = foreachStatement
.WithExpression((ExpressionSyntax)selectCall)
.WithIdentifier(generator.IdentifierName(newVariableName).GetFirstToken())
.WithStatement(restOfForeachBody);
var newRoot = root.ReplaceNode(foreachStatement, newFeStatement);
var withEmptyVariableDeclarationsRemoved = new RemoveEmptyVariableDeclarationSyntax().Visit(newRoot);
return document.WithSyntaxRoot(withEmptyVariableDeclarationsRemoved);
}