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Adding async/await support to the Boo language!
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‎ast.model.boo

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Original file line numberDiff line numberDiff line change
@@ -551,6 +551,12 @@ class CastExpression(Expression):
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class TypeofExpression(Expression):
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Type as TypeReference
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class AsyncBlockExpression(BlockExpression):
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Block as BlockExpression
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class AwaitExpression(Expression):
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BaseExpression as Expression
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class CustomStatement(Statement):
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pass
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‎src/Boo.Lang.Compiler/Ast/AsyncBlockExpression.cs

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@@ -0,0 +1,52 @@
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#region license
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// Copyright (c) 2009 Rodrigo B. de Oliveira ([email protected])
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without modification,
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// are permitted provided that the following conditions are met:
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//
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// * Redistributions of source code must retain the above copyright notice,
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// this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above copyright notice,
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// this list of conditions and the following disclaimer in the documentation
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// and/or other materials provided with the distribution.
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// * Neither the name of Rodrigo B. de Oliveira nor the names of its
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// contributors may be used to endorse or promote products derived from this
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// software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
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// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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// CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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// THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#endregion
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namespace Boo.Lang.Compiler.Ast
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{
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using System;
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public partial class AsyncBlockExpression
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{
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[System.CodeDom.Compiler.GeneratedCodeAttribute("astgen.boo", "1")]
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public AsyncBlockExpression()
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{
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}
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[System.CodeDom.Compiler.GeneratedCodeAttribute("astgen.boo", "1")]
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public AsyncBlockExpression(LexicalInfo lexicalInfo) : base(lexicalInfo)
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{
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}
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public AsyncBlockExpression(BlockExpression value) : base(value.LexicalInfo)
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{
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_block = value;
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_block.InitializeParent(this);
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}
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}
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}
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‎src/Boo.Lang.Compiler/Ast/AwaitExpression.cs

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@@ -0,0 +1,25 @@
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using Boo.Lang.Compiler.TypeSystem;
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namespace Boo.Lang.Compiler.Ast
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{
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public partial class AwaitExpression
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{
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[System.CodeDom.Compiler.GeneratedCodeAttribute("astgen.boo", "1")]
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public AwaitExpression()
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{
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}
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[System.CodeDom.Compiler.GeneratedCodeAttribute("astgen.boo", "1")]
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public AwaitExpression(LexicalInfo lexicalInfo)
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: base(lexicalInfo)
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{
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}
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public AwaitExpression(Expression baseExpression)
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: base(baseExpression.LexicalInfo)
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{
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_baseExpression = baseExpression;
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_baseExpression.InitializeParent(this);
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}
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}
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}

‎src/Boo.Lang.Compiler/Ast/IAstVisitor.Generated.cs

+2
Original file line numberDiff line numberDiff line change
@@ -124,6 +124,8 @@ public interface IAstVisitor
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void OnTryCastExpression(TryCastExpression node);
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void OnCastExpression(CastExpression node);
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void OnTypeofExpression(TypeofExpression node);
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void OnAsyncBlockExpression(AsyncBlockExpression node);
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void OnAwaitExpression(AwaitExpression node);
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void OnCustomStatement(CustomStatement node);
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void OnCustomExpression(CustomExpression node);
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void OnStatementTypeMember(StatementTypeMember node);

‎src/Boo.Lang.Compiler/Ast/Impl/AsyncBlockExpressionImpl.cs

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@@ -0,0 +1,208 @@
1+
#region license
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// Copyright (c) 2009 Rodrigo B. de Oliveira ([email protected])
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without modification,
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// are permitted provided that the following conditions are met:
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//
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// * Redistributions of source code must retain the above copyright notice,
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// this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above copyright notice,
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// this list of conditions and the following disclaimer in the documentation
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// and/or other materials provided with the distribution.
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// * Neither the name of Rodrigo B. de Oliveira nor the names of its
14+
// contributors may be used to endorse or promote products derived from this
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// software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
18+
// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
19+
// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
20+
// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
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// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22+
// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
23+
// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
24+
// CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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// THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#endregion
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//
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// DO NOT EDIT THIS FILE!
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//
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// This file was generated automatically by astgen.boo.
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//
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namespace Boo.Lang.Compiler.Ast
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{
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using System.Collections;
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using System.Runtime.Serialization;
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[System.Serializable]
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public partial class AsyncBlockExpression : BlockExpression
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{
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protected BlockExpression _block;
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[System.CodeDom.Compiler.GeneratedCodeAttribute("astgen.boo", "1")]
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new public AsyncBlockExpression CloneNode()
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{
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return (AsyncBlockExpression)Clone();
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}
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/// <summary>
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/// <see cref="Node.CleanClone"/>
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/// </summary>
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[System.CodeDom.Compiler.GeneratedCodeAttribute("astgen.boo", "1")]
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new public AsyncBlockExpression CleanClone()
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{
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return (AsyncBlockExpression)base.CleanClone();
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}
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[System.CodeDom.Compiler.GeneratedCodeAttribute("astgen.boo", "1")]
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override public NodeType NodeType
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{
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get { return NodeType.AsyncBlockExpression; }
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}
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[System.CodeDom.Compiler.GeneratedCodeAttribute("astgen.boo", "1")]
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override public void Accept(IAstVisitor visitor)
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{
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visitor.OnAsyncBlockExpression(this);
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}
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[System.CodeDom.Compiler.GeneratedCodeAttribute("astgen.boo", "1")]
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override public bool Matches(Node node)
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{
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if (node == null) return false;
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if (NodeType != node.NodeType) return false;
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var other = ( AsyncBlockExpression)node;
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if (!Node.AllMatch(_parameters, other._parameters)) return NoMatch("AsyncBlockExpression._parameters");
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if (!Node.Matches(_returnType, other._returnType)) return NoMatch("AsyncBlockExpression._returnType");
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if (!Node.Matches(_body, other._body)) return NoMatch("AsyncBlockExpression._body");
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if (!Node.Matches(_block, other._block)) return NoMatch("AsyncBlockExpression._block");
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return true;
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}
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[System.CodeDom.Compiler.GeneratedCodeAttribute("astgen.boo", "1")]
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override public bool Replace(Node existing, Node newNode)
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{
88+
if (base.Replace(existing, newNode))
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{
90+
return true;
91+
}
92+
if (_parameters != null)
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{
94+
ParameterDeclaration item = existing as ParameterDeclaration;
95+
if (null != item)
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{
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ParameterDeclaration newItem = (ParameterDeclaration)newNode;
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if (_parameters.Replace(item, newItem))
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{
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return true;
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}
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}
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}
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if (_returnType == existing)
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{
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this.ReturnType = (TypeReference)newNode;
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return true;
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}
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if (_body == existing)
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{
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this.Body = (Block)newNode;
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return true;
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}
114+
if (_block == existing)
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{
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this.Block = (BlockExpression)newNode;
117+
return true;
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}
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return false;
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}
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[System.CodeDom.Compiler.GeneratedCodeAttribute("astgen.boo", "1")]
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override public object Clone()
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{
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AsyncBlockExpression clone = new AsyncBlockExpression();
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clone._lexicalInfo = _lexicalInfo;
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clone._endSourceLocation = _endSourceLocation;
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clone._documentation = _documentation;
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clone._isSynthetic = _isSynthetic;
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clone._entity = _entity;
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if (_annotations != null) clone._annotations = (Hashtable)_annotations.Clone();
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clone._expressionType = _expressionType;
134+
if (null != _parameters)
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{
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clone._parameters = _parameters.Clone() as ParameterDeclarationCollection;
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clone._parameters.InitializeParent(clone);
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}
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if (null != _returnType)
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{
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clone._returnType = _returnType.Clone() as TypeReference;
142+
clone._returnType.InitializeParent(clone);
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}
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if (null != _body)
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{
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clone._body = _body.Clone() as Block;
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clone._body.InitializeParent(clone);
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}
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if (null != _block)
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{
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clone._block = _block.Clone() as BlockExpression;
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clone._block.InitializeParent(clone);
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}
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return clone;
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}
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[System.CodeDom.Compiler.GeneratedCodeAttribute("astgen.boo", "1")]
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override internal void ClearTypeSystemBindings()
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{
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_annotations = null;
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_entity = null;
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_expressionType = null;
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if (null != _parameters)
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{
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_parameters.ClearTypeSystemBindings();
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}
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if (null != _returnType)
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{
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_returnType.ClearTypeSystemBindings();
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}
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if (null != _body)
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{
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_body.ClearTypeSystemBindings();
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}
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if (null != _block)
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{
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_block.ClearTypeSystemBindings();
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}
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}
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[System.Xml.Serialization.XmlElement]
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[System.CodeDom.Compiler.GeneratedCodeAttribute("astgen.boo", "1")]
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public BlockExpression Block
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{
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190+
get { return _block; }
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set
192+
{
193+
if (_block != value)
194+
{
195+
_block = value;
196+
if (null != _block)
197+
{
198+
_block.InitializeParent(this);
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}
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}
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}
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}
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}
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}
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