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>
This commit is contained in:
@@ -0,0 +1,62 @@
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//-----------------------------------------------------------------------
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//-----------------------------------------------------------------------
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// file="ExpElementMemberNameNode.cs"
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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 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”,
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// 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
|
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// THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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//
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//-----------------------------------------------------------------------
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//-----------------------------------------------------------------------
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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 System.Threading.Tasks;
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namespace StgSharp.Script.Express.ExpAstNode
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{
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public class ExpElementMemberNameNode : ExpNode
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{
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public ExpElementMemberNameNode( string memberName )
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: base( memberName ) { }
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public override ExpNode Left => Empty;
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public override ExpNode Right => Empty;
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public override IExpElementSource EqualityTypeConvert
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{
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get
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{
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ExpSchema.BuiltinSchema
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.TryGetType(
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ExpCompile.KeyWord.String,
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out ExpTypeSource? strType );
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return strType;
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}
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}
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}
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}
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@@ -0,0 +1,97 @@
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//-----------------------------------------------------------------------
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//-----------------------------------------------------------------------
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// file="ExpNodeFlag.cs"
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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
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// obtaining a copy of this software and associated documentation
|
||||
// files (the “Software”), to deal in the Software without restriction,
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||||
// 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:
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||||
//
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// The above copyright notice and
|
||||
// this permission notice shall be included in all copies
|
||||
// or substantial portions of the Software.
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||||
//
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// THE SOFTWARE IS PROVIDED “AS IS”,
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// WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
|
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// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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// IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
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// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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// ARISING FROM, OUT OF OR IN CONNECTION WITH
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// THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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//
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//-----------------------------------------------------------------------
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//-----------------------------------------------------------------------
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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 System.Threading.Tasks;
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namespace StgSharp.Script.Express
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{
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[Flags]
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public enum ExpNodeFlag : long
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{
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//string as name of non-builtin variables
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None = 0,
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Name_Element = 1,
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Name_Param = 2,
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Name_Block = 4,
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Name_Keyword = 8,
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Name_Operator = 16,
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Name_Any = Name_Block | Name_Element | Name_Keyword | Name_Param | Name_Operator,
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//any type of collections, also has NAME flag
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Collection_Set = 32,
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Collection_Bag = 64,
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Collection_Array = 128,
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Collection_List = 256,
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Collection_Any = Collection_Set | Collection_Bag | Collection_Array | Collection_List,
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//the variable is type of element, both builtin and non-builtin has this flag
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Element_Const = 512,
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Element_Entity = 1024,
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Element_Type = 2048,
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Element_Rule = 4096,
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Element_Function = 8192,
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Element_Any = Element_Entity | Element_Const | Element_Function | Element_Rule | Element_Type,
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//variable is one of these builtin type
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BuiltinType_Int = 16384,
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BuiltinType_Float = 32768,
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BuiltinType_String = 65536,
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BuiltinType_Boolean = 0x2000,
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BuiltinType_Binary = 0x4000,
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BuiltinType_Logic = 0x8000,
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BuiltinType_Number = BuiltinType_Float | BuiltinType_Int,
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BuiltinType_Any = BuiltinType_Int | BuiltinType_Float | BuiltinType_String | BuiltinType_Boolean | BuiltinType_Binary | BuiltinType_Logic,
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//the token is root of a branch
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Branch_If = 0x1_000,
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Branch_Switch = 0x2_0000,
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Branch_Repeat = 0x4_0000,
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Branch_Any = Branch_If | Branch_Repeat | Branch_Switch,
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//the token is one of separators
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Separator_Inline = 0x8_0000, //, or sth else
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Separator_Line = 0x10_0000, //; or eth else
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Separator_Block = 0x20_0000, //{}or sth else
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Separator_Range = 0x40_0000, //()or sth else
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Separator_Any = Separator_Inline | Separator_Line | Separator_Block | Separator_Range,
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//the token is a kind of operator
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Operator_Unary = 0x40_0000,
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Operator_Binary = 0x80_0000,
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Operator_SuperType = 0x100_0000,
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Operator_Any = Operator_Unary | Operator_Binary | Operator_SuperType,
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}
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}
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@@ -0,0 +1,55 @@
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//-----------------------------------------------------------------------
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//-----------------------------------------------------------------------
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// file="ExpErrorThrow.cs"
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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 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.
|
||||
//
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||||
//-----------------------------------------------------------------------
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//-----------------------------------------------------------------------
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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 System.Threading.Tasks;
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namespace StgSharp.Script.Express
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{
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public partial class ExpNodeGenerator
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{
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public void ThrowCompileException( int errorCode )
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{
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switch( errorCode ) {
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case 0 or 1:
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return;
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case TokenTypeNotMatch:
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throw new Exception();
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default:
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break;
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}
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}
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}
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}
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@@ -0,0 +1,77 @@
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//-----------------------------------------------------------------------
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//-----------------------------------------------------------------------
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// file="ExpNodeGenerator.FunctionCalling.cs"
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// Project: StgSharp
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// AuthorGroup: Nitload Space
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// 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.
|
||||
//
|
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//-----------------------------------------------------------------------
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//-----------------------------------------------------------------------
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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 System.Threading.Tasks;
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using static StgSharp.Script.Express.ExpCompile;
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namespace StgSharp.Script.Express
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{
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public partial class ExpNodeGenerator
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{
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private bool _isCallingFunction = false;
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private Stack<int> _callDepth = new Stack<int>();
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private void EnterFunctionCalling( Token funcNameToken )
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{
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_isCallingFunction = true;
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_callDepth.Push( _operandsToken.Count );
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}
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private void ExitFunctionCalling()
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{
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_callDepth.Pop();
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if( _callDepth.Count == 0 ) {
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_isCallingFunction = false;
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}
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}
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//TODO cannot process occasion of void input or null at first
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//put one of param to tail of function calling pram expression node
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private void MergeFunctionCallingParameter()
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{
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if( _cache.OperandAheadOfDepth == 1 ) {
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if( _cache.PopOperand( out Token t, out ExpNode? n ) ) {
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n!.PrependNode(
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ExpNode.NonOperation( PoolString( "FuncParam" ) ) );
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} else { }
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} else {
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//TODO compile the param expression
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}
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}
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}
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}
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}
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@@ -0,0 +1,94 @@
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//-----------------------------------------------------------------------
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//-----------------------------------------------------------------------
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// file="GenerateOperatorToken.cs"
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// Project: StgSharp
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||||
// 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 System;
|
||||
using System.Collections.Generic;
|
||||
using System.Linq;
|
||||
using System.Text;
|
||||
using System.Threading.Tasks;
|
||||
|
||||
namespace StgSharp.Script.Express
|
||||
{
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public partial class ExpNodeGenerator
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{
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public int CompareOperatorPrecedence( Token left, Token right )
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{
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ExpCompile.TryGetOperatorPrecedence(
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left.Value, out int leftPrecedence );
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ExpCompile.TryGetOperatorPrecedence(
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right.Value, out int rightPrecedence );
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return leftPrecedence - rightPrecedence;
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}
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public bool TryGenerateBinaryNode( Token t, out ExpNode node )
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{
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ExpNode left = GetNextOperandCache();
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ExpNode right = GetNextOperandCache();
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switch( t.Value ) {
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case ExpCompile.KeyWord.ADD:
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node = ExpBinaryOperatorNode.Add( left, right );
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return true;
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case ExpCompile.KeyWord.SUB:
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node = ExpBinaryOperatorNode.Sub( left, right );
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return true;
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case ExpCompile.KeyWord.MUL:
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node = ExpBinaryOperatorNode.Mul( left, right );
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return true;
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case ExpCompile.KeyWord.DIV:
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node = ExpBinaryOperatorNode.Div( left, right );
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return true;
|
||||
default:
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node = ExpNode.Empty;
|
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return false;
|
||||
}
|
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}
|
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|
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public bool TryGenerateUnaryNode( Token t, out ExpNode node )
|
||||
{
|
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ExpNode operand = GetNextOperandCache();
|
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switch( t.Value ) {
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case ExpCompile.KeyWord.UnaryPlus:
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node = ExpUnaryOperatorNode.UnaryPlus( operand );
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return true;
|
||||
case ExpCompile.KeyWord.UnaryMinus:
|
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node = ExpUnaryOperatorNode.UnaryMinus( operand );
|
||||
return true;
|
||||
case ExpCompile.KeyWord.NOT:
|
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node = ExpUnaryOperatorNode.UnaryNot( operand );
|
||||
return true;
|
||||
default:
|
||||
node = ExpNode.Empty;
|
||||
return false;
|
||||
}
|
||||
}
|
||||
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,78 @@
|
||||
//-----------------------------------------------------------------------
|
||||
//-----------------------------------------------------------------------
|
||||
// file="ExpNodeGenerator.StateManage.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 System;
|
||||
using System.Collections.Frozen;
|
||||
using System.Collections.Generic;
|
||||
using System.Linq;
|
||||
using System.Runtime.CompilerServices;
|
||||
using System.Security.Cryptography.X509Certificates;
|
||||
using System.Text;
|
||||
using System.Threading.Tasks;
|
||||
|
||||
namespace StgSharp.Script.Express
|
||||
{
|
||||
public partial class ExpNodeGenerator
|
||||
{
|
||||
|
||||
private CompileState _state = CompileState.Common;
|
||||
private int _lbToken = 0; // [ count
|
||||
private int _lcbCount = 0; // { count
|
||||
private int _lpCount = 0; // ( count
|
||||
|
||||
private void ProcessLeftSeparator( Token t )
|
||||
{
|
||||
switch( t.Value ) {
|
||||
case "[":
|
||||
_lbToken++;
|
||||
break;
|
||||
case "{":
|
||||
_lcbCount++;
|
||||
break;
|
||||
case "(":
|
||||
_lpCount++;
|
||||
break;
|
||||
default:
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
private enum CompileState
|
||||
{
|
||||
|
||||
Common,
|
||||
FunctionCalling,
|
||||
Branch,
|
||||
Loop,
|
||||
|
||||
}
|
||||
|
||||
}
|
||||
}
|
||||
@@ -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;
|
||||
}
|
||||
}
|
||||
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,78 @@
|
||||
//-----------------------------------------------------------------------
|
||||
//-----------------------------------------------------------------------
|
||||
// file="ExpNodeNextEnumerator.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 System;
|
||||
using System.Collections;
|
||||
using System.Collections.Generic;
|
||||
using System.Linq;
|
||||
using System.Text;
|
||||
using System.Threading.Tasks;
|
||||
|
||||
namespace StgSharp.Script.Express
|
||||
{
|
||||
public class ExpNodeNextEnumerator : IEnumerator<ExpNode>
|
||||
{
|
||||
|
||||
private ExpNode _begin;
|
||||
private ExpNode _current;
|
||||
|
||||
public ExpNodeNextEnumerator( ExpNode token )
|
||||
{
|
||||
_begin = token;
|
||||
_current = token;
|
||||
}
|
||||
|
||||
void IDisposable.Dispose()
|
||||
{
|
||||
return;
|
||||
}
|
||||
|
||||
bool IEnumerator.MoveNext()
|
||||
{
|
||||
ExpNode next = _current.Next;
|
||||
if( ReferenceEquals( next, _begin ) || next == null ) {
|
||||
return false;
|
||||
}
|
||||
_current = next;
|
||||
return true;
|
||||
}
|
||||
|
||||
void IEnumerator.Reset()
|
||||
{
|
||||
_current = _begin;
|
||||
}
|
||||
|
||||
object IEnumerator.Current => throw new NotImplementedException();
|
||||
|
||||
ExpNode IEnumerator<ExpNode>.Current => throw new NotImplementedException(
|
||||
);
|
||||
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user