daily update on 20250214 by nitload youmu, building syntax analysor, tough！

内核源代码/StgSharp.Script/Express/ExpAstToken/ExpToken.cs

@@ -36,90 +36,66 @@ using System.Text;
 
 namespace StgSharp.Script.Express
 {
-    [Flags]
-    public enum ExpTokenFlag : long
-    {
-
-        None = 0,
-        Name_Element = 1,
-        Name_Param = 2,
-        Name_Block = 4,
-        Name_Keyword = 8,
-        Name_Any = Name_Block | Name_Element | Name_Keyword | Name_Param,
-        Collection_Set = 16,
-        Collection_Bag = 32,
-        Collection_Array = 64,
-        Collection_List = 128,
-        Collection_Any = Collection_Set | Collection_Bag | Collection_Array | Collection_List,
-        Element_Const = 256,
-        Element_Entity = 512,
-        Element_type = 1024,
-        Element_Rule = 2048,
-        Element_Function = 4096,
-        Element_Any = Element_Entity | Element_Const | Element_Function | Element_Rule | Element_type,
-        BuiltinType_Int = 8192,
-        BuiltinType_Float = 16384,
-        BuiltinType_String = 32768,
-        BuiltinType_Boolean = 65536,
-        BuiltinType_Binary = 0x2000,
-        BuiltinType_Logic = 0x4000,
-        BuiltinType_Any = BuiltinType_Int | BuiltinType_Float | BuiltinType_String | BuiltinType_Boolean | BuiltinType_Binary | BuiltinType_Logic,
-        Branch_If = 0x8000,
-        Branch_Switch = 0x1_0000,
-        Branch_Repeat = 0x2_0000,
-
-    }
-
-    public ref struct ExpTokenSource
-    {
-        public ReadOnlySpan<char> Value;
-        public readonly int Line;
-        public readonly int Column;
-
-        public ExpTokenSource(ReadOnlySpan<char> chars, int lineNumber, int columnNumber)
-        {
-            Value = chars; Line = lineNumber; Column = columnNumber;
-        }
-    }
-
-    public abstract class ExpToken : IExpressionToken
+    public abstract class ExpToken : IExpressionToken<ExpToken, IExpElementSource>
     {
 
         protected internal ExpToken _previousToken;
         protected internal ExpTokenFlag _tokenType;
-        protected internal List<ExpToken> _nextLevelTokens 
-            = new List<ExpToken>();
         protected internal string _name;
 
         protected ExpToken( string name, ExpSchema context )
         {
             _name = name;
-            Context = context;
+            NameSpace = context;
         }
 
-        public ExpSchema Context
+        public ExpSchema NameSpace
         {
             get;
             private set;
         }
 
+        public abstract ExpToken Left
+        {
+            get;
+        }
+
+        public abstract ExpToken Next
+        {
+            get;
+            set;
+        }
+
+        public abstract ExpToken Right
+        {
+            get;
+        }
+
+        public abstract IExpElementSource EqualityTypeConvert
+        {
+            get;
+        }
+
         public long TokenTypeCode => ( long )_tokenType;
 
         public string Name => _name;
 
-        public virtual bool TryGetNextLevel(
-                                    out ICollection<IExpressionToken> nextLevel )
+        public virtual void AppendToken( ExpToken nextToken )
         {
-            nextLevel = ( _nextLevelTokens as ICollection<IExpressionToken> )!;
-            return true;
+            Next = nextToken;
+        }
+
+        public ExpTokenEnumerator GetEnumerator()
+        {
+            return new ExpTokenEnumerator( this );
         }
 
         protected void AssertSchemaInclude( ExpToken expressionRoot )
         {
-            if( expressionRoot.Context != Context && Context.HasSchemaInclude(
-                expressionRoot.Context ) ) {
+            if( expressionRoot.NameSpace != NameSpace && NameSpace.HasSchemaInclude(
+                expressionRoot.NameSpace ) ) {
                 throw new ExpInvalidSchemaIncludeException(
-                    Context, expressionRoot.Context );
+                    NameSpace, expressionRoot.NameSpace );
             }
         }