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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
#nullable disable
using Microsoft.CodeAnalysis.CSharp.Symbols;
using Microsoft.CodeAnalysis.CSharp.Syntax;
using Microsoft.CodeAnalysis.PooledObjects;
using Roslyn.Utilities;
using System.Diagnostics;
using System.Collections.Immutable;
namespace Microsoft.CodeAnalysis.CSharp
{
internal sealed class ExpressionListVariableBinder : LocalScopeBinder
{
private readonly SeparatedSyntaxList<ExpressionSyntax> _expressions;
internal ExpressionListVariableBinder(SeparatedSyntaxList<ExpressionSyntax> expressions, Binder next) : base(next)
{
Debug.Assert(expressions.Count > 0);
_expressions = expressions;
}
protected override ImmutableArray<LocalSymbol> BuildLocals()
{
var builder = ArrayBuilder<LocalSymbol>.GetInstance();
ExpressionVariableFinder.FindExpressionVariables(this, builder, _expressions);
return builder.ToImmutableAndFree();
}
internal override SyntaxNode ScopeDesignator
{
get
{
return _expressions[0];
}
}
internal override ImmutableArray<LocalSymbol> GetDeclaredLocalsForScope(SyntaxNode scopeDesignator)
{
if (ScopeDesignator == scopeDesignator)
{
return this.Locals;
}
throw ExceptionUtilities.Unreachable();
}
internal override ImmutableArray<LocalFunctionSymbol> GetDeclaredLocalFunctionsForScope(CSharpSyntaxNode scopeDesignator)
{
throw ExceptionUtilities.Unreachable();
}
}
}
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