Merge remote-tracking branch 'origin/master'

.gitignore

@@ -2,3 +2,6 @@ target/
 *.iml
 .idea
 website/site/
+*/build/
+*/out/
+.gradle

lang/src/main/antlr/edu/kit/iti/formal/psdbg/parser/ScriptLanguage.g4

@@ -46,6 +46,7 @@ assignment
     |   variable=ID (COLON type=ID)? ASSIGN expression SEMICOLON
     ;
 
+
 expression
     :
       expression MUL expression #exprMultiplication
@@ -56,6 +57,7 @@ expression
     | expression AND expression   #exprAnd
     | expression OR expression    #exprOr
     | expression IMP expression   #exprIMP
+    | expression USING LBRACKET argList RBRACKET #namespaceset
     //|   expression EQUIV expression already covered by EQ/NEQ
     | expression LBRACKET substExpressionList RBRACKET #exprSubst
     | ID LPAREN  (expression (',' expression)*)? RPAREN  #function

lang/src/main/java/edu/kit/iti/formal/psdbg/parser/ASTTraversal.java

@@ -26,7 +26,9 @@ package edu.kit.iti.formal.psdbg.parser;
 import edu.kit.iti.formal.psdbg.parser.ast.*;
 import edu.kit.iti.formal.psdbg.parser.types.Type;
 
-import java.util.Map;
+import java.util.*;
+import java.util.stream.Collectors;
+import java.util.stream.Stream;
 
 /**
  * {@link ASTTraversal} provides a visitor with a a default traversal of the given AST.
@@ -35,6 +37,41 @@ import java.util.Map;
  * @version 1 (29.04.17)
  */
 public interface ASTTraversal<T> extends Visitor<T> {
+
+    default Stream<T> allOf(Stream<ASTNode> nodes) {
+        return nodes.map(n -> (T) n.accept(this));
+    }
+
+    default List<T> allOf(Collection<ASTNode> nodes) {
+        if (nodes.size() == 0) return Collections.emptyList();
+        return allOf(nodes.stream()).collect(Collectors.toList());
+    }
+
+    default Stream<T> allOf(ASTNode... nodes) {
+        if (nodes.length == 0) return (Stream<T>) Collections.emptyList().stream();
+        return allOf(Arrays.stream(nodes));
+    }
+
+    default T oneOf(Stream<? extends ASTNode> nodes) {
+        return (T) nodes
+                .filter(Objects::nonNull)
+                .map(n -> (T) n.accept(this))
+                .filter(Objects::nonNull)
+                .findFirst()
+                .orElse((T) null);
+    }
+
+    default T oneOf(ASTNode... nodes) {
+        if (nodes.length == 0) return null;
+        return oneOf(Arrays.stream(nodes));
+    }
+
+    default T oneOf(Collection<ASTNode> nodes) {
+        if (nodes.size() == 0) return null;
+        return oneOf(nodes.stream());
+    }
+
+
     @Override
     default T visit(ProofScript proofScript) {
         proofScript.getSignature().accept(this);
@@ -226,4 +263,11 @@ public interface ASTTraversal<T> extends Visitor<T> {
         relaxBlock.getBody().accept(this);
         return null;
     }
+
+    @Override
+    default T visit(NamespaceSetExpression nss) {
+        nss.getExpression().accept(this);
+        nss.getSignature().accept(this);
+        return null;
+    }
 }

lang/src/main/java/edu/kit/iti/formal/psdbg/parser/DefaultASTVisitor.java

@@ -176,5 +176,10 @@ public class DefaultASTVisitor<T> implements Visitor<T> {
     public T visit(RelaxBlock relaxBlock) {
         return defaultVisit(relaxBlock);
     }
+
+    @Override
+    public T visit(NamespaceSetExpression nss) {
+        return defaultVisit(nss);
+    }
 }
 

lang/src/main/java/edu/kit/iti/formal/psdbg/parser/PrettyPrinter.java

@@ -197,7 +197,7 @@ public class PrettyPrinter extends DefaultASTVisitor<Void> {
 
     @Override
     public Void visit(TermLiteral termLiteral) {
-        String termLit = termLiteral.getText();
+        String termLit = termLiteral.getContent();
         if (termLit.contains("\n")) {
             termLit = termLit.trim();
         }

lang/src/main/java/edu/kit/iti/formal/psdbg/parser/TransformAst.java

@@ -121,12 +121,12 @@ public class TransformAst implements ScriptLanguageVisitor<Object> {
     @Override
     public Signature visitArgList(ScriptLanguageParser.ArgListContext ctx) {
         Signature signature = new Signature();
+        signature.setRuleContext(ctx);
         for (ScriptLanguageParser.VarDeclContext decl : ctx.varDecl()) {
             Variable key = new Variable(decl.name);
             key.setParent(signature);
             signature.put(key, TypeFacade.findType(decl.type.getText()));
         }
-        signature.setRuleContext(ctx);
         return signature;
     }
 
@@ -148,6 +148,7 @@ public class TransformAst implements ScriptLanguageVisitor<Object> {
     @Override
     public Statements visitStmtList(ScriptLanguageParser.StmtListContext ctx) {
         Statements statements = new Statements();
+        statements.setRuleContext(ctx);
         for (ScriptLanguageParser.StatementContext stmt : ctx.statement()) {
             Statement<ParserRuleContext> statement = (Statement<ParserRuleContext>) stmt.accept(this);
             statement.setParent(statements);
@@ -244,6 +245,14 @@ public class TransformAst implements ScriptLanguageVisitor<Object> {
         return ctx.matchPattern().accept(this);
     }
 
+    @Override
+    public Object visitNamespaceset(ScriptLanguageParser.NamespacesetContext ctx) {
+        NamespaceSetExpression nse = new NamespaceSetExpression();
+        nse.setExpression((Expression) ctx.expression().accept(this));
+        nse.setSignature((Signature) ctx.argList().accept(this));
+        return nse;
+    }
+
     @Override
     public Object visitExprIMP(ScriptLanguageParser.ExprIMPContext ctx) {
         return createBinaryExpression(ctx, ctx.expression(), Operator.IMPLICATION);
@@ -325,7 +334,7 @@ public class TransformAst implements ScriptLanguageVisitor<Object> {
 
     @Override
     public Object visitLiteralTerm(ScriptLanguageParser.LiteralTermContext ctx) {
-        return new TermLiteral(ctx.getText());
+        return new TermLiteral(ctx.TERM_LITERAL().getSymbol());
     }
 
     @Override

lang/src/main/java/edu/kit/iti/formal/psdbg/parser/Visitor.java

@@ -90,4 +90,5 @@ public interface Visitor<T> {
 
     T visit(RelaxBlock relaxBlock);
 
+    T visit(NamespaceSetExpression nss);
 }

lang/src/main/java/edu/kit/iti/formal/psdbg/parser/ast/ASTNode.java

@@ -81,8 +81,8 @@ public abstract class ASTNode<T extends ParserRuleContext>
     }
 
     public void setRuleContext(T c) {
-        startPosition = Position.from(c.getStart());
-        endPosition = Position.from(c.getStop());
+        startPosition = Position.start(c);
+        endPosition = Position.end(c);
         ruleContext = c;
     }
 

lang/src/main/java/edu/kit/iti/formal/psdbg/parser/ast/BooleanLiteral.java

@@ -51,7 +51,7 @@ public class BooleanLiteral extends Literal {
 
     public BooleanLiteral(boolean value, Token token) {
         this.value = value;
-        this.token = token;
+        setToken(token);
     }
 
     BooleanLiteral(boolean b) {
@@ -76,7 +76,7 @@ public class BooleanLiteral extends Literal {
      */
     @Override
     public BooleanLiteral copy() {
-        return new BooleanLiteral(value, token);
+        return new BooleanLiteral(value, getToken());
     }
 
     /**

lang/src/main/java/edu/kit/iti/formal/psdbg/parser/ast/IntegerLiteral.java

@@ -71,7 +71,7 @@ public class IntegerLiteral extends Literal {
      */
     @Override public IntegerLiteral copy() {
         IntegerLiteral il = new IntegerLiteral(value);
-        il.token = token;
+        il.setToken(getToken());
         return il;
     }
 

lang/src/main/java/edu/kit/iti/formal/psdbg/parser/ast/Literal.java

@@ -23,7 +23,6 @@ package edu.kit.iti.formal.psdbg.parser.ast;
  */
 
 
-
 import lombok.Getter;
 import lombok.Setter;
 import org.antlr.v4.runtime.ParserRuleContext;
@@ -38,7 +37,15 @@ import java.util.Optional;
 public abstract class Literal extends Expression<ParserRuleContext> {
     @Getter
     @Setter
-    protected Token token;
+    private Token token;
+
+    public void setToken(Token token) {
+        this.token = token;
+        if (token != null) {
+            startPosition = Position.start(token);
+            endPosition = Position.end(token);
+        }
+    }
 
     /**
      * {@inheritDoc}

lang/src/main/java/edu/kit/iti/formal/psdbg/parser/ast/NamespaceSetExpression.java

+package edu.kit.iti.formal.psdbg.parser.ast;
+
+import edu.kit.iti.formal.psdbg.parser.NotWelldefinedException;
+import edu.kit.iti.formal.psdbg.parser.ScriptLanguageParser;
+import edu.kit.iti.formal.psdbg.parser.Visitor;
+import edu.kit.iti.formal.psdbg.parser.types.Type;
+import lombok.Getter;
+import lombok.Setter;
+
+public class NamespaceSetExpression extends Expression<ScriptLanguageParser.NamespacesetContext>{
+
+    @Getter @Setter
+    private Expression expression;
+
+    @Getter @Setter
+    private Signature signature = new Signature();
+
+    @Override
+    public <T> T accept(Visitor<T> visitor) {
+        return visitor.visit(this);
+    }
+
+    @Override
+    public boolean hasMatchExpression() {
+        return expression.hasMatchExpression();
+    }
+
+    @Override
+    public int getPrecedence() {
+        return 5;
+    }
+
+    @Override
+    public NamespaceSetExpression copy() {
+        NamespaceSetExpression nse = new NamespaceSetExpression();
+        nse.expression = expression.copy();
+        nse.signature = signature.copy();
+        return nse;
+    }
+
+    @Override
+    public Type getType(Signature signature) throws NotWelldefinedException {
+        return expression.getType(signature);
+    }
+}

lang/src/main/java/edu/kit/iti/formal/psdbg/parser/ast/Position.java

@@ -23,26 +23,51 @@ package edu.kit.iti.formal.psdbg.parser.ast;
  */
 
 
-
-import lombok.*;
+import lombok.Data;
+import lombok.RequiredArgsConstructor;
+import lombok.Value;
+import org.antlr.v4.runtime.ParserRuleContext;
 import org.antlr.v4.runtime.Token;
 
 /**
  * @author Alexander Weigl
  */
-@Data @Value @RequiredArgsConstructor public class Position implements Copyable<Position> {
+@Data
+@Value
+@RequiredArgsConstructor
+public class Position implements Copyable<Position> {
+    private final int offset;
     private final int lineNumber;
     private final int charInLine;
 
     public Position() {
-        this(-1, -1);
+        this(-1, -1, -1);
+    }
+
+    public static Position start(Token token) {
+        return new Position(
+                token.getStartIndex(),
+                token.getLine(),
+                token.getCharPositionInLine());
+    }
+
+    public static Position end(Token token) {
+        return new Position(
+                token.getStopIndex(),
+                token.getLine(),
+                token.getCharPositionInLine());
+    }
+
+    public static Position start(ParserRuleContext token) {
+        return start(token.start);
     }
 
-    @Override public Position copy() {
-        return new Position(lineNumber, charInLine);
+    public static Position end(ParserRuleContext token) {
+        return end(token.stop);
     }
 
-    public static Position from(Token token) {
-        return new Position(token.getLine(), token.getCharPositionInLine());
+    @Override
+    public Position copy() {
+        return new Position(offset, lineNumber, charInLine);
     }
 }

lang/src/main/java/edu/kit/iti/formal/psdbg/parser/ast/TermLiteral.java

@@ -23,12 +23,12 @@ package edu.kit.iti.formal.psdbg.parser.ast;
  */
 
 
-
 import edu.kit.iti.formal.psdbg.parser.NotWelldefinedException;
 import edu.kit.iti.formal.psdbg.parser.Visitor;
 import edu.kit.iti.formal.psdbg.parser.types.Type;
 import edu.kit.iti.formal.psdbg.parser.types.TypeFacade;
 import lombok.Data;
+import org.antlr.v4.runtime.Token;
 
 /**
  * @author Alexander Weigl
@@ -36,16 +36,27 @@ import lombok.Data;
  */
 @Data
 public class TermLiteral extends Literal {
-    private final String text;
+    private final String content;
 
-    public TermLiteral(String text) {
+    public TermLiteral(Token token) {
+        setToken(token);
+        String text = token.getText();
         if (text.charAt(0) == '`')
             text = text.substring(1);
         if (text.charAt(text.length() - 1) == '`') //remove last backtick
             text = text.substring(0, text.length() - 1);
         if (text.charAt(0) == '`')
             text = text.substring(0, text.length() - 2);
-        this.text = text;
+        content = text;
+    }
+
+    private TermLiteral(String sfTerm) {
+        content = sfTerm;
+    }
+
+    public static TermLiteral from(String sfTerm) {
+        TermLiteral tl = new TermLiteral(sfTerm);
+        return tl;
     }
 
     /**
@@ -67,7 +78,7 @@ public class TermLiteral extends Literal {
 
     @Override
     public TermLiteral copy() {
-        return new TermLiteral(text);
+        return new TermLiteral(getToken());
     }
 
     /**
@@ -77,5 +88,4 @@ public class TermLiteral extends Literal {
     public Type getType(Signature signature) throws NotWelldefinedException {
         return TypeFacade.ANY_TERM;
     }
-
 }

lang/src/main/java/edu/kit/iti/formal/psdbg/parser/ast/Variable.java

@@ -61,7 +61,7 @@ public class Variable extends Literal implements Comparable<Variable> {
     @Override
     public Variable copy() {
         Variable v = new Variable(identifier);
-        v.token = token;
+        v.setToken(getToken());
         return v;
     }
 

lang/src/main/java/edu/kit/iti/formal/psdbg/parser/data/Value.java

@@ -2,6 +2,7 @@ package edu.kit.iti.formal.psdbg.parser.data;
 
 import edu.kit.iti.formal.psdbg.parser.ast.*;
 import edu.kit.iti.formal.psdbg.parser.types.SimpleType;
+import edu.kit.iti.formal.psdbg.parser.types.TermType;
 import edu.kit.iti.formal.psdbg.parser.types.Type;
 import edu.kit.iti.formal.psdbg.parser.types.TypeFacade;
 import lombok.Getter;
@@ -56,7 +57,7 @@ public class Value<T> {
     }
 
     public static Value<String> from(TermLiteral term) {
-        return new Value<>(TypeFacade.ANY_TERM, term.getText());
+        return new Value<>(TypeFacade.ANY_TERM, term.getContent());
     }
 
     @Override

lang/src/main/java/edu/kit/iti/formal/psdbg/parser/types/SimpleType.java

@@ -23,27 +23,52 @@ package edu.kit.iti.formal.psdbg.parser.types;
  */
 
 
+import javax.annotation.Nullable;
+
 /**
  * Represents the possible types (including scriptVarTypes).
  * <p>
  * Created at 30.04.2017
- *
+ *     INT("\\term int"),
+ BOOL("\\term bool"),
+ ANY("\\term any"),
+ INT_ARRAY("\\term int[]"),
+ OBJECT("\\term Object"),
+ HEAP("\\term Heap"),
+ FIELD("\\term Field"),
+ LOCSET("\\term LocSet"),
+ FORMULA("\\formula"),
+ SEQ("\\term Seq");
  * @author Sarah Grebing
  */
 public enum SimpleType implements Type {
-    STRING("string"), ANY("any"),
-    PATTERN("pattern"),
-    INT("int"), BOOL("bool"), INT_ARRAY("int[]"), OBJECT("object"),
-    HEAP("heap"), FIELD("field"), LOCSET("locset"), NULL("null"), FORMULA("formula"), SEQ("Seq");
+    STRING("string", "string"),
+    //ANY("any", "any"),
+    PATTERN("pattern", null),
+    INT("int", "int"),
+    BOOL("bool", "bool"),
+    /*NULL("null", interpreterSort),
+    FORMULA("formula", interpreterSort),
+    SEQ("Seq", interpreterSort)*/;
+
 
     private final String symbol;
+    private @Nullable  final String interpreterSort;
 
-    SimpleType(String symbol) {
+    SimpleType(String symbol, @Nullable String interpreterSort) {
         this.symbol = symbol;
+        this.interpreterSort = interpreterSort;
     }
 
+
+
     @Override
     public String symbol() {
         return symbol;
     }
+
+    @Override
+    public String interpreterSort() {
+        return interpreterSort;
+    }
 }

lang/src/main/java/edu/kit/iti/formal/psdbg/parser/types/TermType.java

@@ -29,4 +29,8 @@ public class TermType implements Type {
                 + ">";
     }
 
+    @Override
+    public String interpreterSort() {
+        return argTypes.get(0).interpreterSort();
+    }
 }

lang/src/main/java/edu/kit/iti/formal/psdbg/parser/types/Type.java

@@ -6,4 +6,5 @@ package edu.kit.iti.formal.psdbg.parser.types;
  */
 public interface Type {
     String symbol();
+    String interpreterSort();
 }

rt-key/src/main/java/edu/kit/iti/formal/psdbg/interpreter/KeyEvaluator.java

+package edu.kit.iti.formal.psdbg.interpreter;
+
+import de.uka.ilkd.key.logic.Name;
+import de.uka.ilkd.key.logic.NamespaceSet;
+import de.uka.ilkd.key.logic.Term;
+import de.uka.ilkd.key.logic.op.LogicVariable;
+import de.uka.ilkd.key.logic.op.QuantifiableVariable;
+import de.uka.ilkd.key.logic.sort.Sort;
+import de.uka.ilkd.key.proof.Goal;
+import edu.kit.iti.formal.psdbg.interpreter.data.GoalNode;
+import edu.kit.iti.formal.psdbg.interpreter.data.KeyData;
+import edu.kit.iti.formal.psdbg.interpreter.data.TermValue;
+import edu.kit.iti.formal.psdbg.interpreter.data.VariableAssignment;
+import edu.kit.iti.formal.psdbg.parser.ast.Expression;
+import edu.kit.iti.formal.psdbg.parser.ast.NamespaceSetExpression;
+import edu.kit.iti.formal.psdbg.parser.ast.SubstituteExpression;
+import edu.kit.iti.formal.psdbg.parser.ast.Variable;
+import edu.kit.iti.formal.psdbg.parser.data.Value;
+import edu.kit.iti.formal.psdbg.parser.types.SimpleType;
+import edu.kit.iti.formal.psdbg.parser.types.TermType;
+import edu.kit.iti.formal.psdbg.parser.types.Type;
+import edu.kit.iti.formal.psdbg.parser.types.TypeFacade;
+import org.key_project.util.collection.ImmutableArray;
+
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+public class KeyEvaluator extends Evaluator<KeyData> {
+    public KeyEvaluator(VariableAssignment assignments, GoalNode<KeyData> g) {
+        super(assignments, g);
+    }
+
+    @Override
+    public Value visit(NamespaceSetExpression nss) {
+        Value term = (Value) nss.getExpression().accept(this);
+        if (term.getType() instanceof TermType) {
+            TermValue data = ((TermValue) term.getData()).copy();
+            nss.getSignature().forEach((v,s) -> {
+                Sort sort = asKeySort(s, getGoal().getData().getGoal());
+                QuantifiableVariable gf;
+                data.getNs().variables().add(new LogicVariable(new Name(v.getIdentifier()), sort));
+            });
+            return new Value(term.getType(), data);
+        }else {
+            throw new IllegalStateException("Try to apply substitute on a non-term value.");
+        }
+    }
+
+    private Sort asKeySort(Type symbol, Goal g) {
+        NamespaceSet global = g.proof().getServices().getNamespaces();
+        Sort s = global.sorts().lookup(symbol.interpreterSort());
+        if(s!=null)
+            return s;
+        return g.getLocalNamespaces().sorts().lookup(symbol.interpreterSort());
+    }
+
+    @Override
+    public Value visit(SubstituteExpression expr) {
+        Value term = (Value) expr.getSub().accept(this);
+        if (term.getType() instanceof TermType) {
+            TermType tt = (TermType) term.getData();
+            //TODO better and new
+            Pattern pattern = Pattern.compile("\\?[a-zA-Z_]+");
+            String termstr = term.getData().toString();
+            Matcher m = pattern.matcher(termstr);
+            StringBuffer newTerm = new StringBuffer();
+            while (m.find()) {
+                String name = m.group().substring(1); // remove trailing '?'
+                Expression t = expr.getSubstitution().get(m.group());
+
+                //either evalute the substitent or find ?X in the
+                String newVal = "";
+                if (t != null)
+                    newVal = ((Value) t.accept(this)).getData().toString();
+                else
+                   // newVal = state.getValue(new Variable(name)).getData().toString();
+                m.appendReplacement(newTerm, newVal);
+            }
+            m.appendTail(newTerm);
+            return new Value<>(TypeFacade.ANY_TERM, newTerm.toString());
+        } else {
+            throw new IllegalStateException("Try to apply substitute on a non-term value.");
+        }
+    }
+
+}

rt-key/src/main/java/edu/kit/iti/formal/psdbg/interpreter/KeyInterpreter.java

 package edu.kit.iti.formal.psdbg.interpreter;
 
 import com.google.common.collect.BiMap;
+import com.google.common.collect.HashBiMap;
 import com.google.common.collect.ImmutableBiMap;
 import de.uka.ilkd.key.api.VariableAssignments;
+import de.uka.ilkd.key.logic.sort.Sort;
 import de.uka.ilkd.key.proof.Node;
 import de.uka.ilkd.key.proof.Proof;
-import edu.kit.iti.formal.psdbg.interpreter.data.GoalNode;
-import edu.kit.iti.formal.psdbg.interpreter.data.KeyData;
-import edu.kit.iti.formal.psdbg.interpreter.data.State;
-import edu.kit.iti.formal.psdbg.interpreter.data.VariableAssignment;
+import edu.kit.iti.formal.psdbg.interpreter.data.*;
 import edu.kit.iti.formal.psdbg.interpreter.funchdl.CommandLookup;
 import edu.kit.iti.formal.psdbg.parser.Visitor;
 import edu.kit.iti.formal.psdbg.parser.ast.ClosesCase;
 import edu.kit.iti.formal.psdbg.parser.ast.Statements;
+import edu.kit.iti.formal.psdbg.parser.ast.TermLiteral;
 import edu.kit.iti.formal.psdbg.parser.ast.TryCase;
+import edu.kit.iti.formal.psdbg.parser.data.Value;
 import edu.kit.iti.formal.psdbg.parser.types.SimpleType;
+import edu.kit.iti.formal.psdbg.parser.types.TermType;
+import edu.kit.iti.formal.psdbg.parser.types.Type;
+import edu.kit.iti.formal.psdbg.parser.types.TypeFacade;
 import lombok.Getter;
+import lombok.val;
 
 import java.util.List;
+import java.util.function.Function;
 
 /**
  * @author Alexander Weigl
@@ -27,15 +33,17 @@ public class KeyInterpreter extends Interpreter<KeyData> {
     @Getter
     private static final BiMap<SimpleType, VariableAssignments.VarType> typeConversionBiMap =
             new ImmutableBiMap.Builder<SimpleType, VariableAssignments.VarType>()
-                    .put(SimpleType.ANY, VariableAssignments.VarType.ANY)
+      //              .put(SimpleType.ANY, VariableAssignments.VarType.ANY)
                     .put(SimpleType.BOOL, VariableAssignments.VarType.BOOL)
                     //.put(SimpleType.TERM, VariableAssignments.VarType.FORMULA) //TODO: parametrisierte Terms
                     .put(SimpleType.INT, VariableAssignments.VarType.INT)
                     .put(SimpleType.STRING, VariableAssignments.VarType.OBJECT)
-                    .put(SimpleType.INT_ARRAY, VariableAssignments.VarType.INT_ARRAY)
-                    .put(SimpleType.SEQ, VariableAssignments.VarType.SEQ)
+    //                  .put(SimpleType.INT_ARRAY, VariableAssignments.VarType.INT_ARRAY)
+//                    .put(SimpleType.SEQ, VariableAssignments.VarType.SEQ)
                     .build();
 
+
+
     public KeyInterpreter(CommandLookup lookup) {
         super(lookup);
     }
@@ -126,4 +134,17 @@ public class KeyInterpreter extends Interpreter<KeyData> {
             entryListeners = backupEntryListener;
         }
     }
+
+    @Override
+    protected Evaluator<KeyData> createEvaluator(VariableAssignment assignments, GoalNode<KeyData> g) {
+        KeyEvaluator eval = new KeyEvaluator(assignments, g);
+        eval.setMatcher(getMatcherApi());
+        eval.setTermValueFactory(new Function<TermLiteral, Value>() {
+            @Override
+            public Value apply(TermLiteral termLiteral) {
+                return  new Value(TypeFacade.ANY_TERM, new TermValue(termLiteral.getContent()));
+            }
+        });
+        return eval;
+    }
 }