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Commit a745eb0d authored by Sarah Grebing's avatar Sarah Grebing
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fixed test cases for matcher

parent d8831558
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    src/main/java/edu/kit/formal/psdb/termmatcher/MatcherFacade.java
    View file @ a745eb0d
    ......@@ -10,10 +10,7 @@ import org.antlr.v4.runtime.CharStreams;
    import org.antlr.v4.runtime.CommonTokenStream;
    import org.key_project.util.collection.ImmutableList;
    import java.util.ArrayList;
    import java.util.Collections;
    import java.util.HashMap;
    import java.util.List;
    import java.util.*;
    import java.util.stream.Collectors;
    import static edu.kit.formal.psdb.termmatcher.MatchPatternParser.SequentPatternContext;
    ......@@ -64,64 +61,6 @@ public class MatcherFacade {
    }
    public static Matchings matches(SemiSeqPatternContext pattern, Semisequent semiSeq) {
    MatcherImpl matcher = new MatcherImpl();
    ImmutableList<SequentFormula> allSequentFormulas = semiSeq.asList();
    List<TermPatternContext> termPatternContexts = pattern.termPattern();
    List<List<MatcherImpl.MatchInfo>> allMatches = new ArrayList<>();
    for (TermPatternContext termPatternContext : termPatternContexts) {
    List<MatchInfo> m = new ArrayList<>();
    for (SequentFormula form : allSequentFormulas) {
    Matchings temp = matcher.accept(termPatternContext, form.formula());
    for (HashMap<String, Term> match : temp) {
    m.add(new MatchInfo(match, Collections.singleton(form)));
    }
    }
    allMatches.add(m);
    }
    List<MatchInfo> res = reduceCompatibleMatches(allMatches);
    if (res == null)
    return NO_MATCH;
    List<HashMap<String, Term>> resMap = res.stream().map(el -> el.matching).collect(Collectors.toList());
    Matchings resMatchings = new Matchings();
    resMatchings.addAll(resMap);
    return resMatchings;
    }
    //BiMap<Pair<SequentFormula, MatchPatternParser.TermPatternContext>, Matchings> formulaToMatchingInfo,
    /**
    * Reduce all matches to only compatible matchings
    * @param allMatches
    * @return
    */
    private static List<MatchInfo> reduceCompatibleMatches(List<List<MatchInfo>> allMatches) {
    if (allMatches.size() == 1) {
    return allMatches.get(0);
    }
    if (allMatches.size() == 2) {
    return MatcherImpl.reduceConform(allMatches.get(0), allMatches.get(1));
    } else {
    List<MatchInfo> tmp = MatcherImpl.reduceConform(allMatches.get(0), allMatches.get(1));
    List<List<MatchInfo>> list = new ArrayList<>();
    list.add(tmp);
    list.addAll(allMatches.subList(2, allMatches.size()));
    return reduceCompatibleMatches(list);
    }
    }
    /**
    * Match a sequent pattern against a concrete sequent
    *
    ......@@ -146,7 +85,7 @@ public class MatcherFacade {
    SemiSeqPatternContext patternCtx = ctx.anywhere;
    if (antec.isEmpty() & succ.isEmpty()) {
    //Sonderbehandlung, falls beide EmptyMatch-> kein thema aber ansonsten bevorzugung von Varzuweisungen
    //Sonderbehandlung, falls beide EmptyMatch-> kein Thema aber ansonsten bevorzugung von Varzuweisungen
    Matchings antecMatches = matches(patternCtx, antec);
    Matchings succMatches = matches(patternCtx, succ);
    Matchings ret = compareMatchings(antecMatches, succMatches);
    ......@@ -172,6 +111,65 @@ public class MatcherFacade {
    return newMatching;
    }
    //BiMap<Pair<SequentFormula, MatchPatternParser.TermPatternContext>, Matchings> formulaToMatchingInfo,
    /**
    * Reduce all matches to only compatible matchings
    *
    * @param allMatches
    * @return
    */
    private static List<MatchInfo> reduceCompatibleMatches(List<List<MatchInfo>> allMatches) {
    if (allMatches.size() == 1) {
    return allMatches.get(0);
    }
    if (allMatches.size() == 2) {
    return MatcherImpl.reduceConform(allMatches.get(0), allMatches.get(1));
    } else {
    List<MatchInfo> tmp = MatcherImpl.reduceConform(allMatches.get(0), allMatches.get(1));
    List<List<MatchInfo>> list = new ArrayList<>();
    list.add(tmp);
    list.addAll(allMatches.subList(2, allMatches.size()));
    return reduceCompatibleMatches(list);
    }
    }
    public static Matchings matches(SemiSeqPatternContext pattern, Semisequent semiSeq) {
    MatcherImpl matcher = new MatcherImpl();
    ImmutableList<SequentFormula> allSequentFormulas = semiSeq.asList();
    List<TermPatternContext> termPatternContexts = pattern.termPattern();
    List<List<MatcherImpl.MatchInfo>> allMatches = new ArrayList<>();
    for (TermPatternContext termPatternContext : termPatternContexts) {
    List<MatchInfo> m = new ArrayList<>();
    for (SequentFormula form : allSequentFormulas) {
    Matchings temp = matcher.accept(termPatternContext, form.formula());
    for (HashMap<String, Term> match : temp) {
    m.add(new MatchInfo(match, Collections.singleton(form)));
    }
    }
    allMatches.add(m);
    }
    List<MatchInfo> res = reduceCompatibleMatches(allMatches);
    if (res == null)
    return NO_MATCH;
    Set<HashMap<String, Term>> resMap = res.stream().map(el -> el.matching).collect(Collectors.toSet());
    //remove dups?
    Matchings resMatchings = new Matchings();
    resMatchings.addAll(resMap);
    return resMatchings;
    }
    private static Matchings compareMatchings(Matchings antecMatches, Matchings succMatches) {
    if (antecMatches.equals(EMPTY_MATCH) && succMatches.equals(EMPTY_MATCH)) {
    return MatcherImpl.EMPTY_MATCH;
    ......
    src/main/java/edu/kit/formal/psdb/termmatcher/MatcherImpl.java
    View file @ a745eb0d
    ......@@ -22,6 +22,13 @@ class MatcherImpl extends MatchPatternDualVisitor<Matchings, Term> {
    private Stack<Term> termStack = new Stack<>();
    /**
    * Reduce two matchinfos
    *
    * @param m1
    * @param m2
    * @return
    */
    protected static List<MatchInfo> reduceConform(List<MatchInfo> m1, List<MatchInfo> m2) {
    if (m1 == null || m2 == null) return null; //"null" is equivalent to NO_MATCH
    ......@@ -33,7 +40,6 @@ class MatcherImpl extends MatchPatternDualVisitor<Matchings, Term> {
    Set<SequentFormula> intersection = new HashSet<>(minfo1.matchedForms);
    intersection.retainAll(minfo2.matchedForms);
    if (!intersection.isEmpty()) continue;
    HashMap<String, Term> h3 = reduceConform(minfo1.matching, minfo2.matching);
    if (h3 != null) {
    ......@@ -48,28 +54,20 @@ class MatcherImpl extends MatchPatternDualVisitor<Matchings, Term> {
    }
    private static HashMap<String, Term> reduceConform(HashMap<String, Term> h1, HashMap<String, Term> h2) {
    HashMap<String, Term> h3 = new HashMap<>(h1);
    for (String s1 : h3.keySet()) {
    if (!s1.equals("EMPTY_MATCH") && (h2.containsKey(s1) && !h2.get(s1).equals(h1.get(s1)))) {
    return null;
    }
    }
    }
    h3.putAll(h2);
    return h3;
    }
    /*@Override
    protected Matchings visitStartDontCare(MatchPatternParser.StarDontCareContext ctx, Term peek) {
    if (peek != null) {
    return EMPTY_MATCH;
    } else {
    return NO_MATCH;
    }
    }*/
    /**
    * Reduce the matchings by eliminating non-compatible matchings.
    * For example:
    ......@@ -91,7 +89,8 @@ class MatcherImpl extends MatchPatternDualVisitor<Matchings, Term> {
    for (HashMap<String, Term> h2 : m2) {
    HashMap<String, Term> h3 = reduceConform(h1, h2);
    if (h3 != null) {
    m3.add(h3);
    //m3.add(h3);
    if (!m3.contains(h3)) m3.add(h3);
    oneMatch = true;
    }
    }
    ......@@ -182,7 +181,7 @@ class MatcherImpl extends MatchPatternDualVisitor<Matchings, Term> {
    }
    /**
    * Trasnform a term taht represent a number to int
    * Trasnform a term that represent a number to int
    *
    * @param sub
    * @return
    ......
    src/test/java/edu/kit/formal/psdb/termmatcher/MatcherFacadeTest.java
    View file @ a745eb0d
    ......@@ -154,23 +154,23 @@ public class MatcherFacadeTest {
    @Test
    public void seqTest() throws Exception {
    //testcases for empty matches
    shouldMatchSeq("pred(a) ==> pred(a), pred(b)", " ==> _", "[{EMPTY_MATCH=null}]");
    shouldMatchSeq("pred(a) ==> pred(a), pred(b)", "==>", "[{EMPTY_MATCH=null}]");
    shouldMatchSeq("pred(a) ==> pred(a), pred(b)", "_ ==> ", "[{EMPTY_MATCH=null}]");
    shouldMatchSeq("pred(a) ==> pred(a), pred(b)", "_ ==> _", "[{EMPTY_MATCH=null}]");
    shouldMatchSeq("==> pred(a)", "==>", "[{EMPTY_MATCH=null}]");
    shouldMatchSeq("pred(a) ==> ", "==>", "[{EMPTY_MATCH=null}]");
    shouldMatchSeq("pred(a), pred(b) ==> pred(b)", "pred(?X), pred(?Z) ==> pred(?Y)", "[{?X=a, ?Y=b, ?Z=b}, {?X=b, ?Y=b, ?Z=a}]");
    shouldMatchSeq("pred(a), pred(b) ==> pred(b)", "pred(?X), pred(?Z) ==> pred(?X)", "[{?X=b, ?Z=a}]");
    shouldMatchSeq("pred(a), pred(b) ==> pred(b)", "pred(?X), pred(?Z) ==>", "[{?X=a, ?Z=b}, {?X=b, ?Z=a}]");
    shouldMatchSeq("pred(f(a)), pred(b) ==> pred(b)", "pred(?X), pred(?Z) ==>", "[{?X=f(a), ?Z=b}, {?X=b, ?Z=f(a)}]");
    shouldMatchSeq("pred(f(a)), pred(b) ==> pred(b)", "pred(...?X...) ==>", "[{?X=f(a)}, {?X=a}, {?X=b}]");
    shouldMatchSeq("==> pred(a)", "==>", "[{EMPTY_MATCH=null}]");
    shouldMatchSeq("pred(a) ==> ", "==>", "[{EMPTY_MATCH=null}]");
    shouldMatchSeq("pred(a) ==> pred(a), pred(b)", "==>", "[{EMPTY_MATCH=null}]");
    shouldMatchSeq("pred(a) ==> pred(a), pred(b)", "_ ==> ", "[{EMPTY_MATCH=null}]");
    shouldMatchSeq("pred(f(a)), pred(b) ==> pred(b)", "pred(...?X...) ==>", "[{?X=a}, {?X=f(a)}, {?X=b}]");
    //these two need to be checked I think
    shouldMatchSeq("pred(a) ==> pred(a), pred(b)", "_ ==> _", "[{EMPTY_MATCH=null}, {EMPTY_MATCH=null}]");
    shouldMatchSeq("pred(a) ==> pred(a), pred(b)", " ==> _", "[{EMPTY_MATCH=null}, {EMPTY_MATCH=null}]");
    // shouldMatchSeq("fint2(1,2), fint2(2,3), !p ==> pred(a), p", "fint2(1, ?X), fint2(?X, ?Y) ==> p" , "[{?X=2, ?Y=3}]");
    shouldMatchSeq("fint2(1,2), fint2(2,3), !p ==> pred(a), p", "fint2(1, ?X), fint2(?X, ?Y) ==> p");
    shouldMatchSeq("fint2(1,2), fint2(2,3), !p ==> pred(a), p", "fint2(1, ?X), fint2(?X, ?Y) ==> p", "[{EMPTY_MATCH=null, ?X=Z(2(#)), ?Y=Z(3(#))}]");
    }
    ......
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