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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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