Daily update on 20250315-092429 by Nitload Youmu. Additional Message : Arraging node generator struct, compile stat added.
Signed-off-by: Nitload <YoumuLiu_NSI@whv0t.onmicrosoft.com>
This commit is contained in:
Nitload
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//-----------------------------------------------------------------------
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//-----------------------------------------------------------------------
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// file="ExpNodeGenerator.StateCommon.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.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.ExpCompile.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 AppendToken_Common( Token t )
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{
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switch( t.Flag ) {
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// operand, check precedence and push
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case TokenFlag.Symbol_Unary or TokenFlag.Symbol_Binary:
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int cmp = -1;
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processPrecedence:
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Token tmp = _cache.PeekOperator();
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cmp = CompareOperatorPrecedence( t, tmp );
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if( cmp <= 0 ) {
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ConvertOneOperator();
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goto processPrecedence;
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}
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_cache.PushOperand( t );
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break;
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// literal, construct and push
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case TokenFlag.Number or TokenFlag.String:
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_cache.PushOperand( t );
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break;
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// instance ref, make ref and push
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// function call, push as operator
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// keyword, call TryParseConstant method to process
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// name of member in instance, parse as MemberNameNode
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case TokenFlag.Member:
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if( _context.TryGetFunction( t.Value, out _ ) ) {
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_cache.PushOperator( t );
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} else if( _local.TryGetMember( t.Value,
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out ExpNode? node ) ) {
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if( node is ExpElementInstanceBase instance ) {
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_cache.PushOperand( instance.MakeReference( t ) );
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return;// ref of an instance
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}
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} else if( TryParseConstant( t ) ) {
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return;
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} else if( TryParseFunction( t ) ) {
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return;
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} else if( TryParseBranch( t ) ) {
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return;
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} else {
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_cache.PushOperand( t );
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}
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break;
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case TokenFlag.Separator_Single: //a , ; found
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// if operator stack is not empty, convert all operators to node until meet a same separator
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// or OperandAheadOfSeparator property is less than certain value
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_cache.PushOperator( t );
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break;
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case TokenFlag.Separator_Left: //a ( [ { found
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// check if the last token is a function name, loop block or branch
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_cache.PushOperator( t );
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break;
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case TokenFlag.Separator_Right: //a } ] ) found
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//Convert operator until meet a matched separator
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while( _cache.TryPopOperator( out Token op ) ) {
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if( IsSeparatorMatch( t, op ) ) {
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return;
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} else { }
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}
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break;
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case TokenFlag.Index_Left: // a [ found
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break;
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case TokenFlag.Index_Right: // a ] found
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break;
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default:
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break;
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}
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}
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private bool IsSeparatorMatch( Token source, Token target )
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{
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return source.Value switch
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{
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ExpKeyWord.LeftBrace => target.Value == ExpKeyWord.RightBrace,
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ExpKeyWord.LeftParen => target.Value == ExpKeyWord.RightParen,
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ExpKeyWord.Comma => target.Value == ExpKeyWord.Comma,
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ExpKeyWord.Semicolon => target.Value == ExpKeyWord.Semicolon,
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_ => false
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};
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}
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private bool TryParseBranch( Token t )
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{
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if( t.Value == ExpKeyWord.Case ) {
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_cache.PushOperator( t );
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_cache.IncreaseDepth( ( int )StateCode.CaseBranch );
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return true;
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} else if( t.Value == ExpKeyWord.If ) {
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_cache.PushOperator( t );
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_cache.IncreaseDepth( ( int )StateCode.IfBranch );
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return true;
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} else if( t.Value == ExpKeyWord.Repeat ) {
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_cache.PushOperator( t );
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_cache.IncreaseDepth( ( int )StateCode.RepeatLoop );
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return true;
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}
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return false;
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}
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private bool TryParseConstant( Token t )
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{
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if( t.Value == ExpKeyWord.True ) {
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_cache.PushOperand( new ExpBoolNode( t, true ) );
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return true;
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} else if( t.Value == ExpKeyWord.False ) {
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_cache.PushOperand( new ExpBoolNode( t, false ) );
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return true;
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}
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return false;
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}
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private bool TryParseFunction( Token t )
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{
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if( ExpKeyWord.BuiltinFunctions.Contains( t.Value ) ) {
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_cache.PushOperator( t );
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_cache.IncreaseDepth( ( int )StateCode.FunctionCalling );
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return true;
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} else if( _context.TryGetFunction(
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t.Value, out ExpFunctionSource? f ) ) {
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_cache.PushOperand( t );
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_cache.IncreaseDepth( ( int )StateCode.FunctionCalling );
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return true;
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}
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return false;
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}
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}
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}
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