43 lines
1.4 KiB
C#
43 lines
1.4 KiB
C#
// Copyright (c) Ivan Bondarev, Stanislav Mihalkovich (for details please see \doc\copyright.txt)
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// This code is distributed under the GNU LGPL (for details please see \doc\license.txt)
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using PascalABCCompiler.SyntaxTree;
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namespace SyntaxVisitors.SugarVisitors
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{
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public class LoopDesugarVisitor : BaseChangeVisitor
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{
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public static LoopDesugarVisitor New
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{
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get { return new LoopDesugarVisitor(); }
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}
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private int num = 0;
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public string UniqueNumStr()
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{
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num++;
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return num.ToString();
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}
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public override void visit(loop_stmt loop)
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{
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// тут возможно ошибка более глубокая - в semantic_check_sugared_statement_node(asstup) возможно остаются во вложенных лямбдах другие assign_tuple
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var sl = new statement_list();
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sl.Add(new semantic_check_sugared_statement_node(typeof(loop_stmt), new List<syntax_tree_node> { loop.count }, loop.source_context));
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var tname = "#loop_var" + UniqueNumStr();
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var fn = new for_node(new ident(tname), new int32_const(1), loop.count, loop.stmt, loop.source_context);
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sl.Add(fn);
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ReplaceUsingParent(loop, sl);
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visit(fn);
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}
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}
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}
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