93 lines
3.9 KiB
C#
93 lines
3.9 KiB
C#
//-----------------------------------------------------------------------
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//-----------------------------------------------------------------------
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// file="ExpNodeGenerator.PrefixReverseAnalysing.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.Generic;
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using System.ComponentModel.DataAnnotations;
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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 ExpKeyword = StgSharp.Script.Express.ExpressCompile.KeyWord;
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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 void ClosePrefixReverse( Token rightSeparator )
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{
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Token op;
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while( _cache.TryPopOperator( out op ) ) {
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if( op.Value == ExpKeyword.Comma ) {
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if( !_cache.TryPopOperand(
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out bool isNode, out Token t1, out ExpNode? n1 ) ) {
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throw new ExpCompileException(
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op, "No expression before a comma" );
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}
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if( !isNode ) {
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//On some occasions, a token may found,
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//but the processor is not implemented
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throw new NotImplementedException();
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}
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if( !_cache.TryPopOperand(
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out isNode, out Token t2, out ExpNode? n2 ) ) {
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throw new ExpCompileException(
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op, "No expression before a comma" );
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}
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if( !isNode ) {
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//On some occasions, a token may found,
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//but the processor is not implemented
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throw new NotImplementedException();
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}
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n1.PrependNode( n2 );
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_cache.PushOperand( n1 );
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continue;
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}
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ConvertOneOperator( op );
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ExpNode node = GetNextOperandCache();
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_cache.PushOperand( node );
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}
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if( !_cache.TryPopOperand( out _, out _, out ExpNode? root ) ) {
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_cache.PushOperand( ExpNode.Empty );
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}
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_cache.DecreaseDepth();
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if( IsSeparatorMatch( _cache.PeekOperator(), rightSeparator ) ) {
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_cache.PopOperator();
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} else {
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// some unexpected occasions
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throw new NotImplementedException();
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}
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}
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}
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}
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