110 lines
3.9 KiB
C#
110 lines
3.9 KiB
C#
//-----------------------------------------------------------------------
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//-----------------------------------------------------------------------
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// file="ExpConst.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
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// files (the “Software”), to deal in the Software without restriction,
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// including without limitation the rights to use, copy, modify, merge,
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// publish, distribute, sublicense, and/or sell copies of the Software,
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// and to permit persons to whom the Software is furnished to do so,
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// subject to the following conditions:
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//
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// The above copyright notice and
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// this permission notice shall be included in all copies
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// 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;
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using System.Collections.Frozen;
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using System.Collections.Generic;
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using System.Collections.ObjectModel;
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using System.Linq.Expressions;
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using System.Runtime.CompilerServices;
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using System.Text;
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namespace StgSharp.Script.Express
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{
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public sealed class ExpConstantCollectionSource : ExpImmutableElement
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{
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private Dictionary<string, ExpElementInstanceBase> _constants;
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private IScriptSourceProvider _sourceProvider;
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public ExpConstantCollectionSource(
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IScriptSourceProvider sourceProvider )
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{
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_sourceProvider = sourceProvider;
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_constants = new Dictionary<string, ExpElementInstanceBase>(
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ExpressCompile.Multiplexer );
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}
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public override ExpElementType ElementType => ExpElementType.Const;
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public override IScriptSourceProvider SourceProvider => _sourceProvider;
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public override string Name
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{
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get => ExpressCompile.KeyWord.Constant;
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}
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public override void Analyse()
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{
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throw new NotImplementedException();
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}
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public override ExpNode MakeReference( params object[] options )
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{
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if( options.Length == 0 || options[ 0 ] is not string str ) {
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return null!;
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}
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if( _constants.Count == 0 ) {
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return null!;
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}
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if( _constants.TryGetValue( str,
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out ExpElementInstanceBase? token ) ) {
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return token;
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}
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return null!;
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}
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public bool TryGetConstant(
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string name,
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out ExpElementInstanceBase instance )
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{
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return _constants.TryGetValue( name, out instance );
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}
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public override bool TryGetMember( string name, out ExpNode memberNode )
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{
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if( _constants.TryGetValue( name,
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out ExpElementInstanceBase? node ) ) {
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memberNode = node;
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return true;
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}
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memberNode = ExpNode.Empty;
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return false;
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}
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internal void AddConstant( string name, ExpElementInstanceBase value )
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{
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_constants.Add( name, value );
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}
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}
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}
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