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2025-08-25 09:50:30 +08:00
parent bd0e31e922
commit 1359ff4ecc
1630 changed files with 738486 additions and 2399 deletions
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+//-----------------------------------------------------------------------
+//-----------------------------------------------------------------------
+//     file="StepExpSyntaxAnalyzer.cs"
+//     Project: StgSharp
+//     AuthorGroup: Nitload Space
+//     Copyright (c) Nitload Space. All rights reserved.
+//     
+//     Permission is hereby granted, free of charge, to any person 
+//     obtaining a copy of this software and associated documentation 
+//     files (the “Software”), to deal in the Software without restriction, 
+//     including without limitation the rights to use, copy, modify, merge,
+//     publish, distribute, sublicense, and/or sell copies of the Software, 
+//     and to permit persons to whom the Software is furnished to do so, 
+//     subject to the following conditions:
+//     
+//     The above copyright notice and 
+//     this permission notice shall be included in all copies 
+//     or substantial portions of the Software.
+//     
+//     THE SOFTWARE IS PROVIDED “AS IS”, 
+//     WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, 
+//     INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 
+//     FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. 
+//     IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, 
+//     DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 
+//     ARISING FROM, OUT OF OR IN CONNECTION WITH 
+//     THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+//     
+//-----------------------------------------------------------------------
+//-----------------------------------------------------------------------
+using Microsoft.CodeAnalysis.CSharp.Syntax;
+
+using StgSharp.Script;
+using StgSharp.Script.Express;
+using StgSharp.Threading;
+
+using System;
+using System.Collections.Generic;
+using System.Diagnostics;
+using System.IO.Pipes;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+using ExpKeyword = StgSharp.Script.Express.ExpressCompile.Keyword;
+
+namespace StgSharp.Modeling.Step
+{
+    public partial class StepExpSyntaxAnalyzer : ISyntaxAnalyzer
+    {
+
+        private const int EndLine = 1;
+        private const int TokenGenerated = 0;
+        private const int TokenTypeNotMatch = -1;
+
+        private CompileStack<ExpNode, IExpElementSource> _cache;
+        private ExpNode _lastStatement;
+        private ExpSchema _context;
+        private IExpElementSource _local;
+
+        public StepExpSyntaxAnalyzer()
+        {
+            _cache = new CompileStack<ExpNode, IExpElementSource>();
+        }
+
+        public StepExpSyntaxAnalyzer( ExpSchema context, IExpElementSource local )
+        {
+            _cache = new CompileStack<ExpNode, IExpElementSource>();
+            ArgumentNullException.ThrowIfNull( context );
+            if( context is not ExpSchema_Builtin )
+            {
+                _context = context;
+            } else
+            {
+                throw new InvalidCastException( "Not a valid Schema type" );
+            }
+            _local = local;
+        }
+
+        /// <summary>
+        ///   Append a token to top of cache. This method will automatically convert token to node
+        ///   if meets separators or operators.
+        /// </summary>
+        public void AppendToken( Token expToken )
+        {
+            switch( expToken.Flag )
+            {
+                case TokenFlag.Symbol_Unary or TokenFlag.Symbol_Binary:
+                    TryAppendSymbol( expToken );
+                    break;
+                case TokenFlag.Number or TokenFlag.String:
+                    ExpElementInstance node = ExpElementInstance.CreateLiteral( expToken );
+                    _cache.PushOperand( node );
+                    break;
+                case TokenFlag.Separator_Left:
+                    TryAppendPrefixSeparator( expToken );
+                    break;
+                case TokenFlag.Separator_Right:
+                    TryAppendPrefixSeparatorEnd( expToken );
+                    break;
+                case TokenFlag.Separator_Middle:
+                    TryAppendMiddleSeparator( expToken );
+                    break;
+                case TokenFlag.Index_Left:
+                    TryAppendIndexLeft( expToken );
+                    break;
+                case TokenFlag.Index_Right:
+                    TryAppendIndexRight( expToken );
+                    break;
+                case TokenFlag.Member:
+                    TryAppendMember( expToken );
+                    break;
+                default:
+                    break;
+            }
+        }
+
+        public ExpNode GetNextOperandCache()
+        {
+            if( _cache.PopOperand( out Token t, out ExpNode? n ) )
+            {
+                return n;
+            } else
+            {
+                // process some rare case here
+            }
+
+            throw new NotImplementedException();
+        }
+
+        public enum ExpCompileStateCode
+        {
+
+            Common,
+            ForLoop,
+            RepeatLoop,
+            UntilLoop,
+            IfBranch,
+            CaseBranch,
+            CollectionIndex,
+
+        }
+
+    }
+}