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stgsharp/内核源代码/StgSharp.Modeling/Expression/Element/ExpConst.cs
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3.6 KiB
C#

//-----------------------------------------------------------------------
//-----------------------------------------------------------------------
// file="ExpConst.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.Generic;
using System.Collections.Immutable;
using System.Collections.ObjectModel;
using System.Text;
namespace StgSharp.Script.Expression
{
public class ExpConst : ExpElementBase
{
private ExpConstSource _source;
private string _name, _target;
public ExpConst( string name, ExpSchema context ):
base( context )
{
_name = name;
}
public override object? Value => _source;
public ExpElementType ElementType => ExpElementType.Const;
}
internal sealed class ExpBuiltinConst : ExpConstSource
{
private readonly float _value;
public ExpBuiltinConst( string name, float value )
: base( name, null ) { }
public string Name => throw new NotImplementedException();
public override sealed void Analyse()
{
return;
}
}
public class ExpConstSource : IExpElementSource
{
private static Lazy<ReadOnlyDictionary<string, ExpConstSource>> _builtinConst
= new(
() => ReadOnlyDictionary(
new Dictionary<string, ExpConstSource> {
{ "PI", new ExpConstSource( "PI", ) },
} ) );
private IScriptSourceProvider _sourceProvider;
private string _name;
public ExpConstSource(
string name,
IScriptSourceProvider sourceProvider )
{
_name = name;
_sourceProvider = sourceProvider;
}
public ExpElementType ElementType => ExpElementType.Const;
public IScriptSourceProvider SourceProvider => _sourceProvider;
public static ReadOnlyDictionary<string, ExpConstSource> BuiltinConst => _builtinConst.Value;
public string Name
{
get => _name;
}
public virtual void Analyse()
{
throw new NotImplementedException();
}
}
}