/
RDomLambdaExpressionFactory.cs
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/
RDomLambdaExpressionFactory.cs
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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Microsoft.CodeAnalysis;
using Microsoft.CodeAnalysis.CSharp;
using Microsoft.CodeAnalysis.CSharp.Syntax;
using RoslynDom.Common;
namespace RoslynDom.CSharp
{
public class RDomLambdaExpressionFactory
: RDomBaseSyntaxNodeFactory<ILambdaExpression, SimpleLambdaExpressionSyntax>
{
public RDomLambdaExpressionFactory(RDomCorporation corporation)
: base(corporation)
{ }
public override RDomPriority Priority
{ get { return RDomPriority.Normal + 1; } }
public override Type[] SupportedSyntaxNodeTypes
{ get { return new Type[] { typeof(ParenthesizedLambdaExpressionSyntax), typeof(SimpleLambdaExpressionSyntax) }; } }
protected override IDom CreateItemFrom(SyntaxNode syntaxNode, IDom parent, SemanticModel model)
{
var parenthesizedSyntax = syntaxNode as ParenthesizedLambdaExpressionSyntax;
ILambdaExpression newItem = null ;
if (parenthesizedSyntax != null)
{
newItem = CreateItemFromInternal(parenthesizedSyntax.Body, syntaxNode,parent, model);
newItem.Parameters.CreateAndAdd(parenthesizedSyntax, x => x.ParameterList.Parameters, x => OutputContext.Corporation.Create(x, newItem, model).Cast<IParameter>());
}
var syntax = syntaxNode as SimpleLambdaExpressionSyntax;
if (syntax != null)
{
newItem = CreateItemFromInternal(syntax.Body, syntaxNode,parent, model);
newItem.Parameters.CreateAndAdd(syntax, x => new[] { x.Parameter }, x => OutputContext.Corporation.Create(x, newItem, model).Cast<IParameter>());
}
newItem.InitialExpressionString = syntaxNode.ToString();
newItem.InitialExpressionLanguage = ExpectedLanguages.CSharp;
return newItem;
}
private ILambdaExpression CreateItemFromInternal(CSharpSyntaxNode body , SyntaxNode syntaxNode, IDom parent, SemanticModel model)
{
var block = body as BlockSyntax;
if (block != null )
{
var newItem = new RDomLambdaMultiLineExpression(syntaxNode, parent, model);
CreateFromWorker.InitializeStatements(newItem, block, newItem, model);
return newItem;
}
else
{
var exp = body as IExpression;
var newItem = new RDomLambdaSingleExpression(syntaxNode, parent, model);
newItem.Expression = exp;
return newItem;
}
}
public override IEnumerable<SyntaxNode> BuildSyntax(IDom item)
{
var itemAsT = item as IExpression;
if (itemAsT.InitialExpressionLanguage != ExpectedLanguages.CSharp) { throw new InvalidOperationException(); }
var node = SyntaxFactory.ParseExpression(itemAsT.InitialExpressionString);
// TODO: return new SyntaxNode[] { node.Format() };
return new SyntaxNode[] { node };
}
}
}