136 lines
4.7 KiB
C#
136 lines
4.7 KiB
C#
//-----------------------------------------------------------------------
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// -----------------------------------------------------------------------
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// file="ExpSyntaxAnalyzer"
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// Project: StgSharp
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// AuthorGroup: Nitload Space
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// Copyright (c) Nitload Space. All rights reserved.
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in all
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// copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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// SOFTWARE.
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//
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// -----------------------------------------------------------------------
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// -----------------------------------------------------------------------
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using Microsoft.CodeAnalysis.CSharp.Syntax;
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using StgSharp.Script;
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using StgSharp.Script.Express;
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using StgSharp.Threading;
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using System;
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using System.Collections.Concurrent;
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using System.Collections.Generic;
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using System.Diagnostics;
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using System.IO.Pipes;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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using ExpKeyword = StgSharp.Script.Express.ExpressCompile.Keyword;
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namespace StgSharp.Model.Step
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{
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internal partial class StepExpSyntaxAnalyzer : ISyntaxAnalyzer
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{
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private const int EndLine = 1;
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private const int TokenGenerated = 0;
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private const int TokenTypeNotMatch = -1;
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private CompileStack<ExpSyntaxNode, IExpElementSource> _cache;
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private ExpSchema _context;
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private ExpSyntaxNode _lastStatement;
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private IExpElementSource _local;
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public StepExpSyntaxAnalyzer()
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{
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_cache = new CompileStack<ExpSyntaxNode, IExpElementSource>();
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_context = new ExpressStepUtil();
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}
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public ConcurrentQueue<StepEntityDefineSequence> StepEntityInitStatements { get; } = new();
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/// <summary>
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/// Append a token to top of cache. This method will automatically convert token to node
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/// if meets separators or operators.
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/// </summary>
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public void AppendToken(Token expToken)
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{
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switch (expToken.Flag)
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{
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case TokenFlag.Symbol_Unary or TokenFlag.Symbol_Binary:
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TryAppendSymbol(expToken);
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break;
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case TokenFlag.Number or TokenFlag.String:
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ExpElementInstance node = ExpElementInstance.CreateLiteral(expToken);
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_cache.PushOperand(node);
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break;
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case TokenFlag.Separator_Left:
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TryAppendPrefixSeparator(expToken);
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break;
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case TokenFlag.Separator_Right:
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TryAppendPrefixSeparatorEnd(expToken);
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break;
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case TokenFlag.Separator_Middle:
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TryAppendMiddleSeparator(expToken);
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break;
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case TokenFlag.Index_Left:
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TryAppendIndexLeft(expToken);
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break;
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case TokenFlag.Index_Right:
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TryAppendIndexRight(expToken);
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break;
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case TokenFlag.Member:
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TryAppendMember(expToken);
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break;
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case TokenFlag.Enum:
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TryAppendEnum(expToken);
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break;
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default:
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break;
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}
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}
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public ExpSyntaxNode GetNextOperandCache()
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{
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if (_cache.PopOperand(out Token t, out ExpSyntaxNode? n))
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{
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return n;
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} else
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{
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// process some rare case here
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}
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throw new NotImplementedException();
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}
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public enum ExpCompileStateCode
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{
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Common,
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ForLoop,
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RepeatLoop,
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UntilLoop,
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IfBranch,
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CaseBranch,
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CollectionIndex,
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}
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}
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}
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