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krennw
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/**
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*
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* OOAS Compiler (Deprecated)
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*
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* Copyright 2015, Institute for Software Technology, Graz University of
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* Technology. Portions are copyright 2015 by the AIT Austrian Institute
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* of Technology. All rights reserved.
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*
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* SEE THE "LICENSE" FILE FOR THE TERMS UNDER WHICH THIS FILE IS PROVIDED.
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*
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* Please notice that this version of the OOAS compiler is considered de-
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* precated. Only the Java version is maintained.
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*
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* Contributors:
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* Willibald Krenn (TU Graz/AIT)
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* Stefan Tiran (TU Graz/AIT)
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*/
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/*
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* Prolog Code Generator
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*/
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using System;
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using System.Collections.Generic;
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using System.Text;
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using TUG.Mogentes.Codegen;
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namespace TUG.Mogentes.Codegen.Prolog
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{
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public class OoaPrologExpression : OoaExpressionVisitor
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{
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public class Factory
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{
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public OoaPrologExpression create(OoaPrologIdentifier.Factory idFactory, OoaPrologType.Factory typeFactory)
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{ return create(idFactory, typeFactory, false); }
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public virtual OoaPrologExpression create(OoaPrologIdentifier.Factory idFactory, OoaPrologType.Factory typeFactory, bool lhs)
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{ return new OoaPrologExpression(idFactory, typeFactory, this, lhs); }
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}
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protected OoaCodeEmitter m_emitter = new OoaCodeEmitter();
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protected List<string> m_tmpVars = new List<string>();
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private bool m_LhsExpression = false;
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public List<string> tmpVariables { get { return m_tmpVars; } }
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public bool isLhsExpression { get { return m_LhsExpression; } }
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private string GetPrologType(UlyssesType aType)
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{
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OoaPrologType pType = createTypeVisitor();
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aType.Accept(pType);
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return pType.ToString();
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}
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protected string GetIdentifierString(Identifier anIdentifier)
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{
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OoaPrologIdentifier pIdent = createIdentifierVisitor();
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anIdentifier.Accept(pIdent);
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return pIdent.ToString();
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}
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// following call must not happen
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public override void visit(UnresolvedIdentifierExpression unresolvedIdentifierExpression)
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{
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System.Diagnostics.Debug.Assert(false);
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}
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// call of method that returns a value..
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public override void visit(CallExpression callExpression)
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{
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// we handle only function calls within expressions here (must have non-void return!)
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FunctionType funtype = (FunctionType)callExpression.child.type;
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if (funtype.returnType == null)
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throw new ArgumentException("Internal error: Function call in expression with return-type void!");
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string callstatement = String.Empty;
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StringBuilder parameter = new StringBuilder();
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OoaPrologExpression prologexpr = createExpressionVisitor();
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callExpression.child.Accept(prologexpr);
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m_emitter.Append(prologexpr.ToString());
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callstatement = prologexpr.tmpVariables[0];
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int i = 0;
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foreach (var arg in callExpression.arguments)
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{
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if (i != 0)
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parameter.Append(", ");
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else
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i++;
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OoaPrologExpression paramexpr = createExpressionVisitor();
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arg.Accept(paramexpr);
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m_emitter.Append(paramexpr.ToString());
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parameter.Append(paramexpr.tmpVariables[0]);
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}
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if (parameter.Length > 0)
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m_emitter.AppendLine(String.Format("{0}({1},{2}),", callstatement, parameter, NewTempVariable()));
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else
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m_emitter.AppendLine(String.Format("{0}({1}),", callstatement, NewTempVariable()));
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}
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// we need to map all other things to Prolog constructs
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private string OperatorString(Expression expression, UlyssesType resultingType)
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{
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switch (expression.kind)
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{
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case ExpressionKind.abs: // T_ABS:
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case ExpressionKind.card: // T_CARD:
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case ExpressionKind.dom: // T_DOM:
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case ExpressionKind.range: // T_RNG:
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case ExpressionKind.merge: // T_MERGE:
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case ExpressionKind.elems: // T_ELEMS:
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case ExpressionKind.head: // T_HEAD:
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case ExpressionKind.tail: // T_TAIL:
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case ExpressionKind.conc: // T_CONC:
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case ExpressionKind.inds: // T_INDS:
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case ExpressionKind.dinter: // T_DINTER:
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case ExpressionKind.dunion: // T_DUNION:
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case ExpressionKind.domresby: // T_DOMRESBY:
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case ExpressionKind.domresto: // T_DOMRESTO:
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case ExpressionKind.rngresby: // T_RNGRESBY:
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case ExpressionKind.rngresto: // T_RNGRESTO:
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case ExpressionKind.inter: // T_INTER:
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case ExpressionKind.union: // T_UNION:
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case ExpressionKind.diff: // T_DIFF:
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case ExpressionKind.munion: // T_MUNION:
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case ExpressionKind.seqmod_mapoverride: // T_SEQMOD_MAPOVERRIDE:
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case ExpressionKind.subset:
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case ExpressionKind.elemin:
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case ExpressionKind.notelemin:
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case ExpressionKind.implies: // T_IMPLIES:
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case ExpressionKind.biimplies: // T_BIIMPLIES:
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case ExpressionKind.Primed:
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case ExpressionKind.len: // T_LEN:
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throw new NotImplementedException();
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case ExpressionKind.div: // T_DIV:
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return "/";
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case ExpressionKind.idiv: // T_IDIV:
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return "/";
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case ExpressionKind.mod: // T_MOD:
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return "mod";
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case ExpressionKind.prod: // T_PROD:
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return "*";
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case ExpressionKind.sum: // T_SUM:
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return "+";
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case ExpressionKind.minus: // T_MINUS:
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return "-";
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case ExpressionKind.less:
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return resultingType.kind == TypeKind.QrType || !isNumericBinary(expression) ? "<" : "#<";
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case ExpressionKind.lessequal:
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return resultingType.kind == TypeKind.QrType || !isNumericBinary(expression) ? "=<" : "#=<";
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case ExpressionKind.greater:
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return resultingType.kind == TypeKind.QrType || !isNumericBinary(expression) ? ">" : "#>";
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case ExpressionKind.greaterequal:
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return resultingType.kind == TypeKind.QrType || !isNumericBinary(expression) ? ">=" : "#>=";
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case ExpressionKind.equal:
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return resultingType.kind == TypeKind.QrType || !isNumericBinary(expression) ? "==" : "#=";
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case ExpressionKind.notequal:
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return resultingType.kind == TypeKind.QrType || !isNumericBinary(expression) ? "\\=" : "#\\=";
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case ExpressionKind.and: // T_AND:
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throw new NotImplementedException(); // implemented in binaryoperator
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case ExpressionKind.or: // T_OR:
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throw new NotImplementedException(); // implemented in binaryoperator
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case ExpressionKind.not:
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throw new NotImplementedException(); // implemented in binaryoperator
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case ExpressionKind.Cast:
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return String.Empty;
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default:
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return Enum.GetName(typeof(ExpressionKind), expression.kind);
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}
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}
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protected bool isNumericBinary(Expression expression)
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{
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bool result = false;
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if (expression is BinaryOperator)
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{
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result = ((BinaryOperator)expression).left.type.kind == TypeKind.IntType &&
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((BinaryOperator)expression).right.type.kind == TypeKind.IntType;
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}
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else if (expression is UnaryOperator)
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{
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result = ((UnaryOperator)expression).child.type.kind == TypeKind.IntType;
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}
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else throw new NotImplementedException();
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return result;
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}
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public override void visit<T>(ValueExpression<T> valueExpression)
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{
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System.Diagnostics.Debug.Assert(m_tmpVars.Count == 0);
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string tmpVar = NewTempVariable();
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m_emitter.Append(String.Format("{0} ", tmpVar));
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if (valueExpression.value == null)
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m_emitter.Append("= 'null'");
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else if (valueExpression is ValueExpression<bool>)
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m_emitter.Append((valueExpression as ValueExpression<bool>).value ? " #= true" : " #= fail");
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else if (valueExpression is ValueExpression<char>)
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m_emitter.Append(String.Format("#= '{0}'", valueExpression.ToString()));
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else if (valueExpression is ValueExpression<int>)
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m_emitter.Append(String.Format("#= {0}", valueExpression.ToString()));
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else
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m_emitter.Append(String.Format("= {0}", valueExpression.value.ToString()));
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m_emitter.AppendLine(",");
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System.Diagnostics.Debug.Assert(m_tmpVars.Count == 1);
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}
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public override void visit(IdentifierExpression identifierExpression)
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{
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if (identifierExpression.identifier.kind == IdentifierKind.LandmarkIdentifier)
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{
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LandmarkIdentifier lmid = (LandmarkIdentifier)identifierExpression.identifier;
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OoaPrologIdentifier pid = createIdentifierVisitor();
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lmid.Accept(pid);
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//m_emitter.Append(pid.ToString());
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m_tmpVars.Add(pid.ToString());
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return;
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}
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else if (identifierExpression.identifier.kind == IdentifierKind.EnumIdentifier)
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{
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EnumIdentifier enumid = (EnumIdentifier)identifierExpression.identifier;
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EnumType enumType = (EnumType)enumid.type;
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//m_emitter.Append(enumType.listOfEnumSymbols.IndexOf(enumid));
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if (enumType is ValuedEnumType)
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m_emitter.AppendLine(String.Format("{0} #= {1},", NewTempVariable(), enumid.Value));
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else
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m_emitter.AppendLine(String.Format("{0} #= {1},", NewTempVariable(), enumType.listOfEnumSymbols.IndexOf(enumid).ToString()));
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}
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else if (identifierExpression.isSelf)
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{
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m_emitter.AppendLine(String.Format("{0} = {1},", NewTempVariable(), GetIdentifierString(identifierExpression.identifier)));
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}
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/*else if (identifierExpression.identifier.kind == IdentifierKind.AttributeIdentifier)
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{
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m_emitter.AppendLine(String.Format("getVal({1},{0},_),", NewTempVariable(), GetIdentifierString(identifierExpression.identifier)));
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}*/
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else
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{
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| 248 |
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//m_emitter.Append(GetIdentifierString(identifierExpression.identifier));
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m_tmpVars.Add(GetIdentifierString(identifierExpression.identifier));
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}
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}
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public override void visit(TypeExpression typeExpression)
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{
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| 255 |
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if (typeExpression.type.kind != TypeKind.QrType &&
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| 256 |
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typeExpression.type.kind != TypeKind.EnumeratedType)
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| 257 |
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{
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| 258 |
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//m_emitter.Append(GetIdentifierString(typeExpression.type.identifier));
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| 259 |
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m_emitter.Append(GetIdentifierString(typeExpression.type.identifier));
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| 260 |
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}
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| 261 |
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}
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| 262 |
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| 263 |
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| 264 |
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public override void visit(ObjectConstructor objectConstructor)
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{
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| 266 |
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if (objectConstructor.instances.Count > 1)
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| 267 |
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throw new NotImplementedException();
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| 268 |
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| 269 |
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m_emitter.AppendLine(String.Format("{0} = '{1}',", NewTempVariable(), objectConstructor.instances[0].Name));
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| 270 |
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| 271 |
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//m_emitter.Append(String.Format("new {0}(this)", GetIdentifierString(objectConstructor.type.identifier)));
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| 272 |
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}
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| 273 |
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| 274 |
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public override void visit(ListConstructor listConstructor)
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| 275 |
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{
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| 276 |
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if (listConstructor.hasComprehension)
|
| 277 |
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{
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| 278 |
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OoaPrologExpression compr = createExpressionVisitor();
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| 279 |
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listConstructor.comprehension.Accept(compr);
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| 280 |
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OoaPrologExpression elem = createExpressionVisitor();
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| 281 |
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listConstructor.elements[0].Accept(elem);
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| 282 |
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| 283 |
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StringBuilder enumvars = new StringBuilder();
|
| 284 |
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int i = 0;
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| 285 |
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foreach (var v in listConstructor.comprehensionVariables.symbolList)
|
| 286 |
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{
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| 287 |
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OoaPrologIdentifier ident = createIdentifierVisitor();
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| 288 |
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v.Accept(ident);
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| 289 |
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| 290 |
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OoaPrologType identType = createTypeVisitor();
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| 291 |
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v.type.Accept(identType);
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| 292 |
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| 293 |
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enumvars.Append(String.Format("{2} {0}: {1}", ident.ToString(), identType.ToString(), i == 0 ? String.Empty : ","));
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| 294 |
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i++;
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| 295 |
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}
|
| 296 |
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|
| 297 |
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m_emitter.AppendLine("% listcomprehension");
|
| 298 |
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m_emitter.AppendLine(String.Format("{0} = {{{1}:[{2}]:({3}{4},{5}{6})}}",
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| 299 |
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NewTempVariable(), elem.tmpVariables[0], enumvars.ToString(), compr.ToString(), compr.tmpVariables[0],
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| 300 |
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elem.ToString(), "1=1" /*elem.ToString() == String.Empty ? "1=1" : elem.tmpVariables[0]*/));
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| 301 |
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}
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| 302 |
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else
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| 303 |
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{
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| 304 |
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m_emitter.AppendLine("% make list");
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| 305 |
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m_emitter.AppendLine(String.Format("{0} = []", NewTempVariable()));
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| 306 |
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| 307 |
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foreach (var expr in listConstructor.elements)
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| 308 |
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{
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| 309 |
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m_emitter.Append(", ");
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| 310 |
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| 311 |
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OoaPrologExpression pVal = createExpressionVisitor();
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| 312 |
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expr.Accept(pVal);
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| 313 |
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m_emitter.Append(pVal.ToString());
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| 314 |
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System.Diagnostics.Debug.Assert(pVal.tmpVariables.Count == 1);
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| 315 |
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m_emitter.AppendLine(String.Format("ulyssesListConc({0},[{1}],{2})", m_tmpVars[0], pVal.tmpVariables[0], NewTempVariable()));
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| 316 |
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m_tmpVars.RemoveAt(0);
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| 317 |
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}
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| 318 |
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}
|
| 319 |
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m_emitter.Append(",");
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| 320 |
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System.Diagnostics.Debug.Assert(m_tmpVars.Count == 1);
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| 321 |
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}
|
| 322 |
|
|
|
| 323 |
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public override void visit(SetConstructor setConstructor)
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| 324 |
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{
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| 325 |
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throw new NotImplementedException();
|
| 326 |
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}
|
| 327 |
|
|
|
| 328 |
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|
public override void visit(MapConstructor mapConstructor)
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| 329 |
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{
|
| 330 |
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throw new NotImplementedException();
|
| 331 |
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}
|
| 332 |
|
|
|
| 333 |
|
|
public override void visit(TupleConstructor tupleConstructor)
|
| 334 |
|
|
{
|
| 335 |
|
|
if (tupleConstructor.isMatcher)
|
| 336 |
|
|
{
|
| 337 |
|
|
// being dealt with in binaryoperator (since we only allow tuple=MyTuple(a,b))
|
| 338 |
|
|
NewTempVariable();
|
| 339 |
|
|
return;
|
| 340 |
|
|
}
|
| 341 |
|
|
else
|
| 342 |
|
|
{
|
| 343 |
|
|
m_emitter.AppendLine("% make tuple");
|
| 344 |
|
|
m_emitter.AppendLine(String.Format("{0} = []", NewTempVariable()));
|
| 345 |
|
|
|
| 346 |
|
|
foreach (var expr in tupleConstructor.values)
|
| 347 |
|
|
{
|
| 348 |
|
|
m_emitter.Append(", ");
|
| 349 |
|
|
|
| 350 |
|
|
OoaPrologExpression pVal = createExpressionVisitor();
|
| 351 |
|
|
expr.Accept(pVal);
|
| 352 |
|
|
m_emitter.Append(pVal.ToString());
|
| 353 |
|
|
System.Diagnostics.Debug.Assert(pVal.tmpVariables.Count == 1);
|
| 354 |
|
|
m_emitter.AppendLine(String.Format("ulyssesListConc({0},[{1}],{2})", m_tmpVars[0], pVal.tmpVariables[0], NewTempVariable()));
|
| 355 |
|
|
m_tmpVars.RemoveAt(0);
|
| 356 |
|
|
}
|
| 357 |
|
|
m_emitter.Append(",");
|
| 358 |
|
|
System.Diagnostics.Debug.Assert(m_tmpVars.Count == 1);
|
| 359 |
|
|
}
|
| 360 |
|
|
}
|
| 361 |
|
|
|
| 362 |
|
|
public override void visit(QValConstructor qValConstructor)
|
| 363 |
|
|
{
|
| 364 |
|
|
OoaPrologIdentifier pident = createIdentifierVisitor();
|
| 365 |
|
|
qValConstructor.type.identifier.Accept(pident);
|
| 366 |
|
|
StringBuilder qVal = new StringBuilder();
|
| 367 |
|
|
if (qValConstructor.value != null || qValConstructor.value.Length != 0)
|
| 368 |
|
|
{
|
| 369 |
|
|
OoaPrologExpression landmark1 = createExpressionVisitor();
|
| 370 |
|
|
qValConstructor.value[0].Accept(landmark1);
|
| 371 |
|
|
qVal.Append(landmark1.ToString());
|
| 372 |
|
|
|
| 373 |
|
|
if (qValConstructor.value.Length > 1)
|
| 374 |
|
|
{
|
| 375 |
|
|
OoaPrologExpression landmark2 = createExpressionVisitor();
|
| 376 |
|
|
qValConstructor.value[1].Accept(landmark2);
|
| 377 |
|
|
qVal.Append("..");
|
| 378 |
|
|
qVal.Append(landmark2.ToString());
|
| 379 |
|
|
}
|
| 380 |
|
|
}
|
| 381 |
|
|
else
|
| 382 |
|
|
qVal.Append("_");
|
| 383 |
|
|
|
| 384 |
|
|
string deriv = "_";
|
| 385 |
|
|
switch (qValConstructor.valueDeriv)
|
| 386 |
|
|
{
|
| 387 |
|
|
case QValDeriv.Dec:
|
| 388 |
|
|
deriv = "dec";
|
| 389 |
|
|
break;
|
| 390 |
|
|
case QValDeriv.Inc:
|
| 391 |
|
|
deriv = "inc";
|
| 392 |
|
|
break;
|
| 393 |
|
|
case QValDeriv.Steady:
|
| 394 |
|
|
deriv = "std";
|
| 395 |
|
|
break;
|
| 396 |
|
|
|
| 397 |
|
|
}
|
| 398 |
|
|
string tmpVar = NewTempVariable();
|
| 399 |
|
|
m_emitter.AppendLine(String.Format("{3} = ({0}:{1}/{2}),", pident.ToString(), qVal.ToString(), deriv, tmpVar));
|
| 400 |
|
|
}
|
| 401 |
|
|
|
| 402 |
|
|
public override void visit(AccessExpression accessExpression)
|
| 403 |
|
|
{
|
| 404 |
|
|
if (accessExpression.left.type.kind != TypeKind.QrType &&
|
| 405 |
|
|
accessExpression.left.type.kind != TypeKind.EnumeratedType &&
|
| 406 |
|
|
!(accessExpression.right.kind == ExpressionKind.Identifier &&
|
| 407 |
|
|
((IdentifierExpression)accessExpression.right).identifier.kind == IdentifierKind.AttributeIdentifier))
|
| 408 |
|
|
{
|
| 409 |
|
|
System.Diagnostics.Debug.Assert(m_tmpVars.Count == 0);
|
| 410 |
|
|
// enums and qr types are directly (statically) converted to nums...
|
| 411 |
|
|
VisitSub(accessExpression.left, accessExpression);
|
| 412 |
|
|
string leftresult = m_tmpVars[0]; m_tmpVars.RemoveAt(0);
|
| 413 |
|
|
|
| 414 |
|
|
VisitSub(accessExpression.right, accessExpression);
|
| 415 |
|
|
string rightresult = m_tmpVars[0]; m_tmpVars.RemoveAt(0);
|
| 416 |
|
|
|
| 417 |
|
|
m_tmpVars.Add(String.Format("{0}\\{1}", leftresult, rightresult));
|
| 418 |
|
|
}
|
| 419 |
|
|
else
|
| 420 |
|
|
VisitSub(accessExpression.right, accessExpression);
|
| 421 |
|
|
}
|
| 422 |
|
|
|
| 423 |
|
|
public override void visit(BinaryOperator binaryOperator)
|
| 424 |
|
|
{
|
| 425 |
|
|
OoaCodeEmitter origEmitter = m_emitter;
|
| 426 |
|
|
|
| 427 |
|
|
|
| 428 |
|
|
// eval stack must be empty
|
| 429 |
|
|
System.Diagnostics.Debug.Assert(m_tmpVars.Count == 0);
|
| 430 |
|
|
// traverse left
|
| 431 |
|
|
OoaCodeEmitter leftcode = new OoaCodeEmitter();
|
| 432 |
|
|
m_emitter = leftcode;
|
| 433 |
|
|
VisitSub(binaryOperator.left, binaryOperator);
|
| 434 |
|
|
string leftresult = m_tmpVars[0]; m_tmpVars.RemoveAt(0);
|
| 435 |
|
|
System.Diagnostics.Debug.Assert(m_tmpVars.Count == 0);
|
| 436 |
|
|
// traverse right
|
| 437 |
|
|
OoaCodeEmitter rightcode = new OoaCodeEmitter();
|
| 438 |
|
|
m_emitter = rightcode;
|
| 439 |
|
|
VisitSub(binaryOperator.right, binaryOperator);
|
| 440 |
|
|
string rightresult = m_tmpVars[0]; m_tmpVars.RemoveAt(0);
|
| 441 |
|
|
// eval stack must be empty
|
| 442 |
|
|
System.Diagnostics.Debug.Assert(m_tmpVars.Count == 0);
|
| 443 |
|
|
|
| 444 |
|
|
m_emitter = origEmitter;
|
| 445 |
|
|
|
| 446 |
|
|
// get tmp.var
|
| 447 |
|
|
string tmpVar = NewTempVariable();
|
| 448 |
|
|
|
| 449 |
|
|
switch (binaryOperator.kind)
|
| 450 |
|
|
{
|
| 451 |
|
|
case ExpressionKind.elemin:
|
| 452 |
|
|
m_emitter.Append(leftcode.ToString());
|
| 453 |
|
|
m_emitter.Append(rightcode.ToString());
|
| 454 |
|
|
m_emitter.AppendLine(String.Format(" {0} = member({1},{2}),",
|
| 455 |
|
|
tmpVar, leftresult, rightresult));
|
| 456 |
|
|
break;
|
| 457 |
|
|
case ExpressionKind.and: // T_AND:
|
| 458 |
|
|
m_emitter.Append(leftcode.ToString());
|
| 459 |
|
|
m_emitter.Append(rightcode.ToString());
|
| 460 |
|
|
m_emitter.AppendLine(String.Format(" {0} = ({1} {2} {3}), ",
|
| 461 |
|
|
tmpVar, leftresult, ",", rightresult));
|
| 462 |
|
|
break;
|
| 463 |
|
|
case ExpressionKind.or: // T_OR:
|
| 464 |
|
|
m_emitter.Append(leftcode.ToString());
|
| 465 |
|
|
m_emitter.Append(rightcode.ToString());
|
| 466 |
|
|
m_emitter.AppendLine(String.Format(" {0} = ({1} {2} {3}), ",
|
| 467 |
|
|
tmpVar, leftresult, ";", rightresult));
|
| 468 |
|
|
break;
|
| 469 |
|
|
|
| 470 |
|
|
case ExpressionKind.implies:
|
| 471 |
|
|
m_emitter.Append(leftcode.ToString());
|
| 472 |
|
|
m_emitter.AppendLine(String.Format(" {0} = ({1} -> ({2}{3}); true), ", // {0} = (({1} -> ({2}{3}); true))
|
| 473 |
|
|
tmpVar, leftresult, rightcode.ToString(), rightresult));
|
| 474 |
|
|
break;
|
| 475 |
|
|
|
| 476 |
|
|
case ExpressionKind.equal:
|
| 477 |
|
|
m_emitter.Append(leftcode.ToString());
|
| 478 |
|
|
m_emitter.Append(rightcode.ToString());
|
| 479 |
|
|
/*check if we have tupleconstructors as matchers*/
|
| 480 |
|
|
TupleConstructor matcher = null;
|
| 481 |
|
|
string aTuple = null;
|
| 482 |
|
|
if (binaryOperator.left.kind == ExpressionKind.TupleConstr &&
|
| 483 |
|
|
((TupleConstructor)binaryOperator.left).isMatcher)
|
| 484 |
|
|
{
|
| 485 |
|
|
matcher = (TupleConstructor)binaryOperator.left;
|
| 486 |
|
|
aTuple = rightresult;
|
| 487 |
|
|
}
|
| 488 |
|
|
else if (binaryOperator.right.kind == ExpressionKind.TupleConstr &&
|
| 489 |
|
|
((TupleConstructor)binaryOperator.right).isMatcher)
|
| 490 |
|
|
{
|
| 491 |
|
|
matcher = (TupleConstructor)binaryOperator.right;
|
| 492 |
|
|
aTuple = leftresult;
|
| 493 |
|
|
}
|
| 494 |
|
|
|
| 495 |
|
|
if (matcher == null)
|
| 496 |
|
|
m_emitter.AppendLine(String.Format(" {0} = ({1} {2} {3}), ",
|
| 497 |
|
|
tmpVar, leftresult, OperatorString(binaryOperator, binaryOperator.left.type), rightresult));
|
| 498 |
|
|
else
|
| 499 |
|
|
{
|
| 500 |
|
|
m_emitter.Append(String.Format("{0} = unify({1} = [", tmpVar, aTuple));
|
| 501 |
|
|
int cntr = 0;
|
| 502 |
|
|
foreach (var x in matcher.values)
|
| 503 |
|
|
{
|
| 504 |
|
|
if (cntr != 0)
|
| 505 |
|
|
m_emitter.Append(", ");
|
| 506 |
|
|
else
|
| 507 |
|
|
cntr++;
|
| 508 |
|
|
|
| 509 |
|
|
if (x.kind != ExpressionKind.Identifier)
|
| 510 |
|
|
throw new ArgumentException();
|
| 511 |
|
|
|
| 512 |
|
|
IdentifierExpression ident = (IdentifierExpression)x;
|
| 513 |
|
|
OoaPrologIdentifier avisitor = createIdentifierVisitor();
|
| 514 |
|
|
ident.Accept(avisitor);
|
| 515 |
|
|
m_emitter.Append(avisitor.ToString());
|
| 516 |
|
|
}
|
| 517 |
|
|
m_emitter.AppendLine("]),");
|
| 518 |
|
|
}
|
| 519 |
|
|
break;
|
| 520 |
|
|
|
| 521 |
|
|
|
| 522 |
|
|
|
| 523 |
|
|
case ExpressionKind.conc:
|
| 524 |
|
|
m_emitter.Append(leftcode.ToString());
|
| 525 |
|
|
m_emitter.Append(rightcode.ToString());
|
| 526 |
|
|
m_emitter.AppendLine(String.Format("ulyssesListConc({1},{2},{0}),", tmpVar, leftresult, rightresult));
|
| 527 |
|
|
break;
|
| 528 |
|
|
|
| 529 |
|
|
default:
|
| 530 |
|
|
m_emitter.Append(leftcode.ToString());
|
| 531 |
|
|
m_emitter.Append(rightcode.ToString());
|
| 532 |
|
|
if (binaryOperator.left.type.kind == TypeKind.QrType)
|
| 533 |
|
|
m_emitter.Append("qEval");
|
| 534 |
|
|
//m_emitter.Append("(");
|
| 535 |
|
|
if (binaryOperator.type.kind == TypeKind.IntType)
|
| 536 |
|
|
m_emitter.AppendLine(String.Format(" {0} #= ({1} {2} {3}), ",
|
| 537 |
|
|
tmpVar, leftresult, OperatorString(binaryOperator, binaryOperator.left.type), rightresult));
|
| 538 |
|
|
else
|
| 539 |
|
|
m_emitter.AppendLine(String.Format(" {0} = ({1} {2} {3}), ",
|
| 540 |
|
|
tmpVar, leftresult, OperatorString(binaryOperator, binaryOperator.left.type), rightresult));
|
| 541 |
|
|
//m_emitter.Append(")");
|
| 542 |
|
|
break;
|
| 543 |
|
|
}
|
| 544 |
|
|
System.Diagnostics.Debug.Assert(m_tmpVars.Count == 1);
|
| 545 |
|
|
}
|
| 546 |
|
|
|
| 547 |
|
|
public override void visit(TernaryOperator ternaryOperator)
|
| 548 |
|
|
{
|
| 549 |
|
|
if (ternaryOperator.kind == ExpressionKind.conditional)
|
| 550 |
|
|
{
|
| 551 |
|
|
VisitSub(ternaryOperator.left, ternaryOperator);
|
| 552 |
|
|
string leftresult = m_tmpVars[0]; m_tmpVars.RemoveAt(0);
|
| 553 |
|
|
VisitSub(ternaryOperator.mid, ternaryOperator);
|
| 554 |
|
|
string midresult = m_tmpVars[0]; m_tmpVars.RemoveAt(0);
|
| 555 |
|
|
VisitSub(ternaryOperator.right, ternaryOperator);
|
| 556 |
|
|
string rightresult = m_tmpVars[0]; m_tmpVars.RemoveAt(0);
|
| 557 |
|
|
|
| 558 |
|
|
string varname = NewTempVariable();
|
| 559 |
|
|
|
| 560 |
|
|
// (cond, expr #= var; #\ (cond), expr #= var)
|
| 561 |
|
|
m_emitter.Append("((");
|
| 562 |
|
|
m_emitter.Append(leftresult);
|
| 563 |
|
|
m_emitter.Append(", unify(");
|
| 564 |
|
|
m_emitter.Append(midresult);
|
| 565 |
|
|
m_emitter.Append(String.Format(" = {0}) );( call(\\+({1})), unify(", varname, leftresult));
|
| 566 |
|
|
m_emitter.Append(rightresult);
|
| 567 |
|
|
m_emitter.Append(String.Format(" = {0}) )),", varname));
|
| 568 |
|
|
}
|
| 569 |
|
|
else if (ternaryOperator.kind == ExpressionKind.foldRL)
|
| 570 |
|
|
throw new NotImplementedException();
|
| 571 |
|
|
else if (ternaryOperator.kind == ExpressionKind.foldLR)
|
| 572 |
|
|
{
|
| 573 |
|
|
VisitSub(ternaryOperator.mid, ternaryOperator);
|
| 574 |
|
|
string midresult = m_tmpVars[0]; m_tmpVars.RemoveAt(0);
|
| 575 |
|
|
VisitSub(ternaryOperator.right, ternaryOperator);
|
| 576 |
|
|
string rightresult = m_tmpVars[0]; m_tmpVars.RemoveAt(0);
|
| 577 |
|
|
|
| 578 |
|
|
|
| 579 |
|
|
int uniqueNumer = GetUniqueNumber();
|
| 580 |
|
|
m_emitter.Append(String.Format("fun_fold({0},{1},(_Elem_{2}, _In_{2}, Out_{2},(", midresult,
|
| 581 |
|
|
rightresult, uniqueNumer));
|
| 582 |
|
|
|
| 583 |
|
|
|
| 584 |
|
|
// hack the current element and current result values to match the declaration above (change from __result, __elem)
|
| 585 |
|
|
CallExpression leftcall = (CallExpression)ternaryOperator.left;
|
| 586 |
|
|
IdentifierExpression elemId = (IdentifierExpression)leftcall.arguments[leftcall.arguments.Count - 1];
|
| 587 |
|
|
elemId.identifier.SetTokenText(String.Format("Elem_{0}", uniqueNumer));
|
| 588 |
|
|
IdentifierExpression currentResultId = (IdentifierExpression)leftcall.arguments[leftcall.arguments.Count - 2];
|
| 589 |
|
|
currentResultId.identifier.SetTokenText(String.Format("In_{0}", uniqueNumer));
|
| 590 |
|
|
|
| 591 |
|
|
VisitSub(leftcall, ternaryOperator);
|
| 592 |
|
|
string leftresult = m_tmpVars[0]; m_tmpVars.RemoveAt(0);
|
| 593 |
|
|
string tmpresult = NewTempVariable();
|
| 594 |
|
|
m_emitter.Append(String.Format(" Out_{1} = {2})),{0}),", tmpresult, uniqueNumer, leftresult));
|
| 595 |
|
|
}
|
| 596 |
|
|
|
| 597 |
|
|
|
| 598 |
|
|
|
| 599 |
|
|
else
|
| 600 |
|
|
throw new NotImplementedException();
|
| 601 |
|
|
}
|
| 602 |
|
|
|
| 603 |
|
|
public override void visit(TupleMapAccessExpression tupleMapAccessExpression)
|
| 604 |
|
|
{
|
| 605 |
|
|
System.Diagnostics.Debug.Assert(m_tmpVars.Count == 0);
|
| 606 |
|
|
VisitSub(tupleMapAccessExpression.child, tupleMapAccessExpression);
|
| 607 |
|
|
string childresult = m_tmpVars[0]; m_tmpVars.RemoveAt(0);
|
| 608 |
|
|
|
| 609 |
|
|
VisitSub(tupleMapAccessExpression.argument, tupleMapAccessExpression);
|
| 610 |
|
|
string accessresult = m_tmpVars[0]; m_tmpVars.RemoveAt(0);
|
| 611 |
|
|
System.Diagnostics.Debug.Assert(m_tmpVars.Count == 0);
|
| 612 |
|
|
|
| 613 |
|
|
string tmpresult = NewTempVariable();
|
| 614 |
|
|
|
| 615 |
|
|
if (!m_LhsExpression)
|
| 616 |
|
|
{
|
| 617 |
|
|
switch (tupleMapAccessExpression.child.type.kind)
|
| 618 |
|
|
{
|
| 619 |
|
|
case TypeKind.TupleType:
|
| 620 |
|
|
m_emitter.AppendLine(String.Format("ulyssesTupleAccess({0},{1},{2}),", childresult, accessresult, tmpresult));
|
| 621 |
|
|
break;
|
| 622 |
|
|
case TypeKind.MapType:
|
| 623 |
|
|
m_emitter.AppendLine(String.Format("ulyssesMapAccess({0},{1},{2}),", childresult, accessresult, tmpresult));
|
| 624 |
|
|
break;
|
| 625 |
|
|
case TypeKind.ListType:
|
| 626 |
|
|
m_emitter.AppendLine(String.Format("ulyssesListAccess({0},{1},{2}),", childresult, accessresult, tmpresult));
|
| 627 |
|
|
break;
|
| 628 |
|
|
default:
|
| 629 |
|
|
throw new NotImplementedException();
|
| 630 |
|
|
}
|
| 631 |
|
|
System.Diagnostics.Debug.Assert(m_tmpVars.Count == 1);
|
| 632 |
|
|
}
|
| 633 |
|
|
else
|
| 634 |
|
|
{
|
| 635 |
|
|
/*>>>>> See comment in ooaTypeCheckVisitor on method CheckPlace! <<<<<<<<<*/
|
| 636 |
|
|
switch (tupleMapAccessExpression.child.type.kind)
|
| 637 |
|
|
{
|
| 638 |
|
|
case TypeKind.ListType:
|
| 639 |
|
|
bool isAttribute;
|
| 640 |
|
|
isAttribute = tupleMapAccessExpression.child.kind == ExpressionKind.Identifier &&
|
| 641 |
|
|
((IdentifierExpression)tupleMapAccessExpression.child).identifier.kind == IdentifierKind.AttributeIdentifier;
|
| 642 |
|
|
|
| 643 |
|
|
isAttribute = isAttribute || tupleMapAccessExpression.child.kind == ExpressionKind.Access
|
| 644 |
|
|
&& ((AccessExpression)tupleMapAccessExpression.child).left.kind == ExpressionKind.Identifier
|
| 645 |
|
|
&& ((IdentifierExpression)((AccessExpression)tupleMapAccessExpression.child).left).isSelf
|
| 646 |
|
|
&& ((AccessExpression)tupleMapAccessExpression.child).right.kind == ExpressionKind.Identifier
|
| 647 |
|
|
&& ((IdentifierExpression)((AccessExpression)tupleMapAccessExpression.child).right).identifier.kind
|
| 648 |
|
|
== IdentifierKind.AttributeIdentifier;
|
| 649 |
|
|
|
| 650 |
|
|
|
| 651 |
|
|
tmpVarCntr++;
|
| 652 |
|
|
string newlist = String.Format("RESVAR_{0}", tmpVarCntr);
|
| 653 |
|
|
|
| 654 |
|
|
m_emitter.AppendLine(String.Format("ulyssesListWrite({0},{1},{2},{3}),", childresult, accessresult, tmpresult, newlist));
|
| 655 |
|
|
|
| 656 |
|
|
if (isAttribute)
|
| 657 |
|
|
{ m_emitter.AppendLine(String.Format("{0} := {1},", childresult, newlist)); }
|
| 658 |
|
|
else
|
| 659 |
|
|
{ throw new NotImplementedException(); }
|
| 660 |
|
|
|
| 661 |
|
|
break;
|
| 662 |
|
|
default:
|
| 663 |
|
|
throw new NotImplementedException();
|
| 664 |
|
|
}
|
| 665 |
|
|
|
| 666 |
|
|
|
| 667 |
|
|
}
|
| 668 |
|
|
}
|
| 669 |
|
|
|
| 670 |
|
|
|
| 671 |
|
|
public override void visit(ForallQuantifier quantifier)
|
| 672 |
|
|
{
|
| 673 |
|
|
OoaPrologExpression pExpr = createExpressionVisitor();
|
| 674 |
|
|
quantifier.child.Accept(pExpr);
|
| 675 |
|
|
|
| 676 |
|
|
// TEMPXY = forall(enumerate1([var:type,...]),pred(var..))
|
| 677 |
|
|
StringBuilder Generator = new StringBuilder();
|
| 678 |
|
|
int i = 0;
|
| 679 |
|
|
foreach (var v in quantifier.symbols.symbolList)
|
| 680 |
|
|
{
|
| 681 |
|
|
OoaPrologIdentifier ident = createIdentifierVisitor();
|
| 682 |
|
|
v.Accept(ident);
|
| 683 |
|
|
|
| 684 |
|
|
OoaPrologType identType = createTypeVisitor();
|
| 685 |
|
|
v.type.Accept(identType);
|
| 686 |
|
|
|
| 687 |
|
|
Generator.Append(String.Format("{2} {0}: {1}", ident.ToString(), identType.ToString(), i == 0 ? String.Empty : ","));
|
| 688 |
|
|
i++;
|
| 689 |
|
|
}
|
| 690 |
|
|
|
| 691 |
|
|
m_emitter.AppendLine(String.Format("{0} = forall([{1}],({2}{3})),",
|
| 692 |
|
|
NewTempVariable(), Generator.ToString(), pExpr.ToString(), pExpr.tmpVariables[0]));
|
| 693 |
|
|
}
|
| 694 |
|
|
|
| 695 |
|
|
|
| 696 |
|
|
|
| 697 |
|
|
public override void visit(ExistsQuantifier quantifier)
|
| 698 |
|
|
{
|
| 699 |
|
|
OoaPrologExpression pExpr = createExpressionVisitor();
|
| 700 |
|
|
quantifier.child.Accept(pExpr);
|
| 701 |
|
|
|
| 702 |
|
|
// TEMPXY = exists(enumerate1([var:type,...]),pred(var..))
|
| 703 |
|
|
StringBuilder Generator = new StringBuilder();
|
| 704 |
|
|
int i = 0;
|
| 705 |
|
|
foreach (var v in quantifier.symbols.symbolList)
|
| 706 |
|
|
{
|
| 707 |
|
|
OoaPrologIdentifier ident = createIdentifierVisitor();
|
| 708 |
|
|
v.Accept(ident);
|
| 709 |
|
|
|
| 710 |
|
|
OoaPrologType identType = createTypeVisitor();
|
| 711 |
|
|
v.type.Accept(identType);
|
| 712 |
|
|
|
| 713 |
|
|
Generator.Append(String.Format("{2} {0}: {1}", ident.ToString(), identType.ToString(), i == 0 ? String.Empty : ","));
|
| 714 |
|
|
i++;
|
| 715 |
|
|
}
|
| 716 |
|
|
|
| 717 |
|
|
m_emitter.AppendLine(String.Format("{0} = exists([{1}],({2}{3})),",
|
| 718 |
|
|
NewTempVariable(), Generator.ToString(), pExpr.ToString(), pExpr.tmpVariables[0]));
|
| 719 |
|
|
}
|
| 720 |
|
|
public override void visit(UnaryOperator unaryOperator)
|
| 721 |
|
|
{
|
| 722 |
|
|
System.Diagnostics.Debug.Assert(m_tmpVars.Count == 0);
|
| 723 |
|
|
VisitSub(unaryOperator.child, unaryOperator);
|
| 724 |
|
|
|
| 725 |
|
|
if (unaryOperator.kind == ExpressionKind.Cast)
|
| 726 |
|
|
return;
|
| 727 |
|
|
|
| 728 |
|
|
string childresult = m_tmpVars[0]; m_tmpVars.RemoveAt(0);
|
| 729 |
|
|
System.Diagnostics.Debug.Assert(m_tmpVars.Count == 0);
|
| 730 |
|
|
|
| 731 |
|
|
string tmpresult = NewTempVariable();
|
| 732 |
|
|
|
| 733 |
|
|
switch (unaryOperator.kind)
|
| 734 |
|
|
{
|
| 735 |
|
|
case ExpressionKind.head:
|
| 736 |
|
|
m_emitter.AppendLine(String.Format("ulyssesListHead({1},{0}),", tmpresult, childresult));
|
| 737 |
|
|
break;
|
| 738 |
|
|
|
| 739 |
|
|
case ExpressionKind.tail:
|
| 740 |
|
|
m_emitter.AppendLine(String.Format("ulyssesListTail({1},{0}),", tmpresult, childresult));
|
| 741 |
|
|
break;
|
| 742 |
|
|
|
| 743 |
|
|
case ExpressionKind.len: // T_LEN:
|
| 744 |
|
|
m_emitter.AppendLine(String.Format("ulyssesListLength({1},{0}),", tmpresult, childresult));
|
| 745 |
|
|
break;
|
| 746 |
|
|
|
| 747 |
|
|
case ExpressionKind.not:
|
| 748 |
|
|
|
| 749 |
|
|
if (unaryOperator.type.kind == TypeKind.IntType)
|
| 750 |
|
|
m_emitter.Append(String.Format(" {0} #= call(\\+", tmpresult));
|
| 751 |
|
|
else
|
| 752 |
|
|
m_emitter.Append(String.Format(" {0} = call(\\+", tmpresult));
|
| 753 |
|
|
m_emitter.Append("(");
|
| 754 |
|
|
m_emitter.Append(childresult);
|
| 755 |
|
|
m_emitter.AppendLine(")),");
|
| 756 |
|
|
|
| 757 |
|
|
|
| 758 |
|
|
break;
|
| 759 |
|
|
|
| 760 |
|
|
case ExpressionKind.Cast:
|
| 761 |
|
|
// todo
|
| 762 |
|
|
break;
|
| 763 |
|
|
|
| 764 |
|
|
default:
|
| 765 |
|
|
if (unaryOperator.type.kind == TypeKind.IntType)
|
| 766 |
|
|
m_emitter.Append(String.Format(" {0} #= ({1}", tmpresult, OperatorString(unaryOperator, unaryOperator.child.type)));
|
| 767 |
|
|
else
|
| 768 |
|
|
m_emitter.Append(String.Format(" {0} = ({1}", tmpresult, OperatorString(unaryOperator, unaryOperator.child.type)));
|
| 769 |
|
|
m_emitter.Append("(");
|
| 770 |
|
|
m_emitter.Append(childresult);
|
| 771 |
|
|
m_emitter.AppendLine(")),");
|
| 772 |
|
|
break;
|
| 773 |
|
|
}
|
| 774 |
|
|
System.Diagnostics.Debug.Assert(m_tmpVars.Count == 1);
|
| 775 |
|
|
}
|
| 776 |
|
|
|
| 777 |
|
|
public override string ToString()
|
| 778 |
|
|
{
|
| 779 |
|
|
return m_emitter.ToString();
|
| 780 |
|
|
}
|
| 781 |
|
|
|
| 782 |
|
|
protected OoaPrologType createTypeVisitor() { return m_typeFactory.create(m_idFactory); }
|
| 783 |
|
|
protected OoaPrologIdentifier createIdentifierVisitor() { return m_idFactory.create(); }
|
| 784 |
|
|
protected OoaPrologExpression createExpressionVisitor() { return m_exprFactory.create(m_idFactory, m_typeFactory); }
|
| 785 |
|
|
|
| 786 |
|
|
protected readonly OoaPrologIdentifier.Factory m_idFactory;
|
| 787 |
|
|
protected readonly OoaPrologType.Factory m_typeFactory;
|
| 788 |
|
|
protected readonly OoaPrologExpression.Factory m_exprFactory;
|
| 789 |
|
|
|
| 790 |
|
|
protected OoaPrologExpression(
|
| 791 |
|
|
OoaPrologIdentifier.Factory idFactory,
|
| 792 |
|
|
OoaPrologType.Factory typeFactory,
|
| 793 |
|
|
OoaPrologExpression.Factory expressionFactory)
|
| 794 |
|
|
: this(idFactory, typeFactory, expressionFactory, false)
|
| 795 |
|
|
{
|
| 796 |
|
|
}
|
| 797 |
|
|
|
| 798 |
|
|
protected OoaPrologExpression(
|
| 799 |
|
|
OoaPrologIdentifier.Factory idFactory,
|
| 800 |
|
|
OoaPrologType.Factory typeFactory,
|
| 801 |
|
|
OoaPrologExpression.Factory expressionFactory,
|
| 802 |
|
|
bool isLHS)
|
| 803 |
|
|
: base()
|
| 804 |
|
|
{
|
| 805 |
|
|
m_LhsExpression = isLHS;
|
| 806 |
|
|
m_idFactory = idFactory;
|
| 807 |
|
|
m_typeFactory = typeFactory;
|
| 808 |
|
|
m_exprFactory = expressionFactory;
|
| 809 |
|
|
}
|
| 810 |
|
|
|
| 811 |
|
|
|
| 812 |
|
|
static int tmpVarCntr = 0;
|
| 813 |
|
|
public string NewTempVariable()
|
| 814 |
|
|
{
|
| 815 |
|
|
tmpVarCntr++;
|
| 816 |
|
|
string result = String.Format("TMPVAR_{0}", tmpVarCntr);
|
| 817 |
|
|
m_tmpVars.Add(result);
|
| 818 |
|
|
return result;
|
| 819 |
|
|
}
|
| 820 |
|
|
|
| 821 |
|
|
public int GetUniqueNumber()
|
| 822 |
|
|
{
|
| 823 |
|
|
tmpVarCntr++;
|
| 824 |
|
|
return tmpVarCntr;
|
| 825 |
|
|
}
|
| 826 |
|
|
|
| 827 |
|
|
}
|
| 828 |
|
|
} |