Daily update on 20250307-071126 by Nitload Youmu. Additional Message : Rewrite of token and node cache stack

Signed-off-by: Nitload <YoumuLiu_NSI@whv0t.onmicrosoft.com>
2025-03-07 07:11:26 +08:00
parent 8460bfd56a
commit df321a3bae
18 changed files with 1458 additions and 2 deletions
@@ -0,0 +1,128 @@
+//-----------------------------------------------------------------------
+//-----------------------------------------------------------------------
+//     file="ExpNodeGenerator.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 StgSharp.Threading;
+
+using System;
+using System.Collections.Generic;
+using System.Diagnostics;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace StgSharp.Script.Express
+{
+    public partial class ExpNodeGenerator
+    {
+
+        private const int EndLine = 1;
+        private const int TokenGenerated = 0;
+        private const int TokenTypeNotMatch = -1;
+
+        private CompileStack<ExpNode, IExpElementSource> _cache;
+
+        private ExpNode _lastStatement;
+
+        private GeneratedExpSchema _context;
+        private IExpElementSource _local;
+
+        public ExpNodeGenerator()
+        {
+            _cache = new CompileStack<ExpNode, IExpElementSource>();
+        }
+
+        /// <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:
+                    int cmp = -1;
+                    processPrecedence:
+                    Token tmp = _cache.PeekOperator();
+                    cmp = CompareOperatorPrecedence( expToken, tmp );
+                    if( cmp <= 0 ) {
+                        ConvertOneOperator();
+                        goto processPrecedence;
+                    }
+                    _cache.PushOperand( expToken );
+                    break;
+                case TokenFlag.Number or TokenFlag.String or TokenFlag.Member:
+                    _cache.PushOperand( expToken );
+                    break;
+                case TokenFlag.Separator_Single:         //a , ; found
+                    //if operator stack is not empty, convert all operators to node until meet a separator
+                    break;
+                case TokenFlag.Separator_Left:           //a ( [ { found
+                    _cache.PushOperator( expToken );
+                    break;
+                case TokenFlag.Separator_Right:          //a } ] ) found
+                    break;
+                case TokenFlag.Index_Left:               // a [ found
+                    break;
+                case TokenFlag.Index_Right:              // a ] found
+                    break;
+                default:
+                    break;
+            }
+        }
+
+        public ExpNode GetNextOperandCache()
+        {
+            if( _cache.PopOperand( out Token t, out ExpNode? n ) ) {
+                return n;
+            } else { }
+        }
+
+        /// <summary>
+        /// WARNING: This method cannot process INDEXOF, FUNCTION CALLING, LOOP and any ENDING
+        /// SYMBOLS.
+        /// </summary>
+        private void ConvertOneOperator()
+        {
+            Token @operator = _cache.PopOperator();
+            switch( @operator.Flag ) {
+                case TokenFlag.Symbol_Unary:
+                    TryGenerateUnaryNode( @operator, out ExpNode? node );
+                    _cache.PushOperand( node );
+                    break;
+                case TokenFlag.Symbol_Binary:
+                    TryGenerateBinaryNode( @operator, out node );
+                    _cache.PushOperand( node );
+                    break;
+                default:
+                    break;
+            }
+        }
+
+    }
+}