/*******************************************************************************
* Copyright (c) 2009-2011 CWI
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* * Jurgen J. Vinju - Jurgen.Vinju@cwi.nl - CWI
* * Arnold Lankamp - Arnold.Lankamp@cwi.nl
*******************************************************************************/
package org.rascalmpl.test.parser;
import java.io.IOException;
import java.io.StringReader;
import org.rascalmpl.parser.gtd.SGTDBF;
import org.rascalmpl.parser.gtd.result.out.DefaultNodeFlattener;
import org.rascalmpl.parser.gtd.stack.AbstractStackNode;
import org.rascalmpl.parser.gtd.stack.LiteralStackNode;
import org.rascalmpl.parser.gtd.stack.NonTerminalStackNode;
import org.rascalmpl.parser.uptr.UPTRNodeFactory;
import org.rascalmpl.value.IConstructor;
import org.rascalmpl.value.ISourceLocation;
import org.rascalmpl.value.IValue;
import org.rascalmpl.value.io.StandardTextReader;
import org.rascalmpl.values.ValueFactoryFactory;
import org.rascalmpl.values.uptr.ITree;
import org.rascalmpl.values.uptr.RascalValueFactory;
/*
S ::= A | B
A ::= B | a
B ::= A | a
*/
@SuppressWarnings({"unchecked", "cast"})
public class UselessSelfLoop extends SGTDBF<IConstructor, ITree, ISourceLocation> implements IParserTest{
private final static IConstructor SYMBOL_START_S = VF.constructor(RascalValueFactory.Symbol_Sort, VF.string("S"));
private final static IConstructor SYMBOL_A = VF.constructor(RascalValueFactory.Symbol_Sort, VF.string("A"));
private final static IConstructor SYMBOL_B = VF.constructor(RascalValueFactory.Symbol_Sort, VF.string("B"));
private final static IConstructor SYMBOL_a = VF.constructor(RascalValueFactory.Symbol_Lit, VF.string("a"));
private final static IConstructor SYMBOL_char_a = VF.constructor(RascalValueFactory.Symbol_CharClass, VF.list(VF.constructor(RascalValueFactory.CharRange_Single, VF.integer(97))));
private final static IConstructor PROD_S_A = VF.constructor(RascalValueFactory.Production_Default, SYMBOL_START_S, VF.list(SYMBOL_A), VF.set());
private final static IConstructor PROD_S_B = VF.constructor(RascalValueFactory.Production_Default, SYMBOL_START_S, VF.list(SYMBOL_B), VF.set());
private final static IConstructor PROD_A_B = VF.constructor(RascalValueFactory.Production_Default, SYMBOL_A, VF.list(SYMBOL_B), VF.set());
private final static IConstructor PROD_A_a = VF.constructor(RascalValueFactory.Production_Default, SYMBOL_A, VF.list(SYMBOL_a), VF.set());
private final static IConstructor PROD_B_A = VF.constructor(RascalValueFactory.Production_Default, SYMBOL_B, VF.list(SYMBOL_A), VF.set());
private final static IConstructor PROD_B_a = VF.constructor(RascalValueFactory.Production_Default, SYMBOL_B, VF.list(SYMBOL_a), VF.set());
private final static IConstructor PROD_a_a = VF.constructor(RascalValueFactory.Production_Default, SYMBOL_a, VF.list(SYMBOL_char_a), VF.set());
private final static AbstractStackNode<IConstructor> NONTERMINAL_START_S = new NonTerminalStackNode<IConstructor>(AbstractStackNode.START_SYMBOL_ID, 0, "S");
private final static AbstractStackNode<IConstructor> NONTERMINAL_A0 = new NonTerminalStackNode<IConstructor>(0, 0, "A");
private final static AbstractStackNode<IConstructor> NONTERMINAL_B1 = new NonTerminalStackNode<IConstructor>(1, 0, "B");
private final static AbstractStackNode<IConstructor> NONTERMINAL_A2 = new NonTerminalStackNode<IConstructor>(2, 0, "A");
private final static AbstractStackNode<IConstructor> NONTERMINAL_B3 = new NonTerminalStackNode<IConstructor>(3, 0, "B");
private final static AbstractStackNode<IConstructor> LITERAL_a4 = new LiteralStackNode<IConstructor>(4, 0, PROD_a_a, new int[]{'a'});
private final static AbstractStackNode<IConstructor> LITERAL_a5 = new LiteralStackNode<IConstructor>(5, 0, PROD_a_a, new int[]{'a'});
private final static AbstractStackNode<IConstructor>[] S_EXPECT_1 = (AbstractStackNode<IConstructor>[]) new AbstractStackNode[1];
static{
S_EXPECT_1[0] = NONTERMINAL_A0;
S_EXPECT_1[0].setProduction(S_EXPECT_1);
S_EXPECT_1[0].setAlternativeProduction(PROD_S_A);
}
private final static AbstractStackNode<IConstructor>[] S_EXPECT_2 = (AbstractStackNode<IConstructor>[]) new AbstractStackNode[1];
static{
S_EXPECT_2[0] = NONTERMINAL_B1;
S_EXPECT_2[0].setProduction(S_EXPECT_2);
S_EXPECT_2[0].setAlternativeProduction(PROD_S_B);
}
private final static AbstractStackNode<IConstructor>[] A_EXPECT_1 = (AbstractStackNode<IConstructor>[]) new AbstractStackNode[1];
static{
A_EXPECT_1[0] = NONTERMINAL_B3;
A_EXPECT_1[0].setProduction(A_EXPECT_1);
A_EXPECT_1[0].setAlternativeProduction(PROD_A_B);
}
private final static AbstractStackNode<IConstructor>[] A_EXPECT_2 = (AbstractStackNode<IConstructor>[]) new AbstractStackNode[1];
static{
A_EXPECT_2[0] = LITERAL_a4;
A_EXPECT_2[0].setProduction(A_EXPECT_2);
A_EXPECT_2[0].setAlternativeProduction(PROD_A_a);
}
private final static AbstractStackNode<IConstructor>[] B_EXPECT_1 = (AbstractStackNode<IConstructor>[]) new AbstractStackNode[1];
static{
B_EXPECT_1[0] = NONTERMINAL_A2;
B_EXPECT_1[0].setProduction(B_EXPECT_1);
B_EXPECT_1[0].setAlternativeProduction(PROD_B_A);
}
private final static AbstractStackNode<IConstructor>[] B_EXPECT_2 = (AbstractStackNode<IConstructor>[]) new AbstractStackNode[1];
static{
B_EXPECT_2[0] = LITERAL_a5;
B_EXPECT_2[0].setProduction(B_EXPECT_2);
B_EXPECT_2[0].setAlternativeProduction(PROD_B_a);
}
public UselessSelfLoop(){
super();
}
public AbstractStackNode<IConstructor>[] S(){
return (AbstractStackNode<IConstructor>[]) new AbstractStackNode[]{S_EXPECT_1[0], S_EXPECT_2[0]};
}
public AbstractStackNode<IConstructor>[] A(){
return (AbstractStackNode<IConstructor>[]) new AbstractStackNode[]{A_EXPECT_1[0], A_EXPECT_2[0]};
}
public AbstractStackNode<IConstructor>[] B(){
return (AbstractStackNode<IConstructor>[]) new AbstractStackNode[]{B_EXPECT_1[0], B_EXPECT_2[0]};
}
public ITree executeParser(){
return parse(NONTERMINAL_START_S, null, "a".toCharArray(), new DefaultNodeFlattener<IConstructor, ITree, ISourceLocation>(), new UPTRNodeFactory(true));
}
public IValue getExpectedResult() throws IOException{
String expectedInput = "amb({appl(prod(sort(\"S\"),[sort(\"B\")],{}),[amb({appl(prod(sort(\"B\"),[lit(\"a\")],{}),[appl(prod(lit(\"a\"),[\\char-class([single(97)])],{}),[char(97)])]),appl(prod(sort(\"B\"),[sort(\"A\")],{}),[amb({appl(prod(sort(\"A\"),[lit(\"a\")],{}),[appl(prod(lit(\"a\"),[\\char-class([single(97)])],{}),[char(97)])]),appl(prod(sort(\"A\"),[sort(\"B\")],{}),[cycle(sort(\"B\"),2)])})])})]),appl(prod(sort(\"S\"),[sort(\"A\")],{}),[amb({appl(prod(sort(\"A\"),[lit(\"a\")],{}),[appl(prod(lit(\"a\"),[\\char-class([single(97)])],{}),[char(97)])]),appl(prod(sort(\"A\"),[sort(\"B\")],{}),[amb({appl(prod(sort(\"B\"),[lit(\"a\")],{}),[appl(prod(lit(\"a\"),[\\char-class([single(97)])],{}),[char(97)])]),appl(prod(sort(\"B\"),[sort(\"A\")],{}),[cycle(sort(\"A\"),2)])})])})])})";
return new StandardTextReader().read(ValueFactoryFactory.getValueFactory(), RascalValueFactory.uptr, RascalValueFactory.Tree, new StringReader(expectedInput));
}
public static void main(String[] args){
UselessSelfLoop usl = new UselessSelfLoop();
IConstructor result = usl.executeParser();
System.out.println(result);
System.out.println("[S([A([B(cycle(A,2)),B(a)]),A(a)]),S([B([A(cycle(B,2)),A(a)]),B(a)])] <- good");
}
}