Examples with EnclosedExpr com.github.javaparser.ast.expr.EnclosedExpr used on opensource projects

Example 1 with EnclosedExpr

use of com.github.javaparser.ast.expr.EnclosedExpr in project drools by kiegroup.

the class ExpressionTyper method toTypedExpressionRec.

private Optional<TypedExpression> toTypedExpressionRec(Expression drlxExpr) {
    Class<?> typeCursor = patternType;
    if (drlxExpr instanceof FullyQualifiedInlineCastExpr) {
        return toTypedExpressionRec(transformFullyQualifiedInlineCastExpr(ruleContext.getTypeResolver(), (FullyQualifiedInlineCastExpr) drlxExpr));
    }
    if (drlxExpr instanceof EnclosedExpr) {
        Expression inner = ((EnclosedExpr) drlxExpr).getInner();
        Optional<TypedExpression> typedExpression = toTypedExpressionRec(inner);
        return typedExpression.map(t -> t.cloneWithNewExpression(new EnclosedExpr(t.getExpression())));
    }
    if (drlxExpr instanceof MethodCallExpr) {
        MethodCallExpr methodExpr = (MethodCallExpr) drlxExpr;
        Expression expr = methodExpr;
        if (isEval(methodExpr.getNameAsString(), methodExpr.getScope(), methodExpr.getArguments())) {
            expr = methodExpr.getArgument(0);
        }
        drlxExpr = expr;
    }
    if (drlxExpr instanceof NullSafeMethodCallExpr) {
        NullSafeMethodCallExpr methodExpr = (NullSafeMethodCallExpr) drlxExpr;
        Expression expr = methodExpr;
        if (isEval(methodExpr.getNameAsString(), methodExpr.getScope(), methodExpr.getArguments())) {
            expr = methodExpr.getArgument(0);
        }
        drlxExpr = expr;
    }
    if (drlxExpr instanceof UnaryExpr) {
        UnaryExpr unaryExpr = (UnaryExpr) drlxExpr;
        Optional<TypedExpression> optTypedExpr = toTypedExpressionRec(unaryExpr.getExpression());
        return optTypedExpr.map(typedExpr -> new TypedExpression(new UnaryExpr(typedExpr.getExpression(), unaryExpr.getOperator()), typedExpr.getType()));
    }
    if (drlxExpr instanceof BinaryExpr) {
        BinaryExpr binaryExpr = (BinaryExpr) drlxExpr;
        BinaryExpr.Operator operator = binaryExpr.getOperator();
        Optional<TypedExpression> optLeft = toTypedExpressionRec(binaryExpr.getLeft());
        Optional<TypedExpression> optRight = toTypedExpressionRec(binaryExpr.getRight());
        return optLeft.flatMap(left -> optRight.flatMap(right -> {
            final BinaryExpr combo = new BinaryExpr(left.getExpression(), right.getExpression(), operator);
            return of(new TypedExpression(combo, left.getType()));
        }));
    }
    if (drlxExpr instanceof HalfBinaryExpr) {
        final Expression binaryExpr = trasformHalfBinaryToBinary(drlxExpr);
        if (binaryExpr instanceof BinaryExpr && ((BinaryExpr) binaryExpr).getLeft() == drlxExpr) {
            throw new CannotTypeExpressionException("left leaf is the same : drlxExpr = " + drlxExpr + ", originalExpression = " + context.getOriginalExpression());
        }
        return toTypedExpressionRec(binaryExpr);
    }
    if (drlxExpr instanceof LiteralExpr) {
        drlxExpr = normalizeDigit(drlxExpr);
        return of(new TypedExpression(drlxExpr, getLiteralExpressionType((LiteralExpr) drlxExpr)));
    }
    if (drlxExpr instanceof ThisExpr || (drlxExpr instanceof NameExpr && THIS_PLACEHOLDER.equals(printNode(drlxExpr)))) {
        return of(new TypedExpression(new NameExpr(THIS_PLACEHOLDER), patternType));
    }
    if (drlxExpr instanceof CastExpr) {
        CastExpr castExpr = (CastExpr) drlxExpr;
        Optional<TypedExpression> optTypedExpr = toTypedExpressionRec(castExpr.getExpression());
        return optTypedExpr.map(typedExpr -> new TypedExpression(new CastExpr(castExpr.getType(), typedExpr.getExpression()), getClassFromContext(ruleContext.getTypeResolver(), castExpr.getType().asString())));
    }
    if (drlxExpr instanceof NameExpr) {
        return nameExpr(((NameExpr) drlxExpr).getNameAsString(), typeCursor);
    }
    if (drlxExpr instanceof FieldAccessExpr || drlxExpr instanceof MethodCallExpr || drlxExpr instanceof ObjectCreationExpr || drlxExpr instanceof NullSafeFieldAccessExpr || drlxExpr instanceof NullSafeMethodCallExpr || drlxExpr instanceof MapCreationLiteralExpression || drlxExpr instanceof ListCreationLiteralExpression) {
        return toTypedExpressionFromMethodCallOrField(drlxExpr).getTypedExpression();
    }
    if (drlxExpr instanceof PointFreeExpr) {
        final PointFreeExpr pointFreeExpr = (PointFreeExpr) drlxExpr;
        Optional<TypedExpression> optLeft = toTypedExpressionRec(pointFreeExpr.getLeft());
        Optional<TypedExpression> optRight = pointFreeExpr.getRight().size() == 1 ? toTypedExpressionRec(pointFreeExpr.getRight().get(0)) : Optional.empty();
        OperatorSpec opSpec = getOperatorSpec(pointFreeExpr.getRight(), pointFreeExpr.getOperator());
        return optLeft.map(left -> new TypedExpression(opSpec.getExpression(ruleContext, pointFreeExpr, left, this), left.getType()).setStatic(opSpec.isStatic()).setLeft(left).setRight(optRight.orElse(null)));
    }
    if (drlxExpr instanceof HalfPointFreeExpr) {
        final HalfPointFreeExpr halfPointFreeExpr = (HalfPointFreeExpr) drlxExpr;
        Expression parentLeft = findLeftLeafOfNameExprTraversingParent(halfPointFreeExpr);
        if (parentLeft == halfPointFreeExpr) {
            throw new CannotTypeExpressionException("left leaf is the same : halfPointFreeExpr = " + halfPointFreeExpr + ", originalExpression = " + context.getOriginalExpression());
        }
        Optional<TypedExpression> optLeft = toTypedExpressionRec(parentLeft);
        OperatorSpec opSpec = getOperatorSpec(halfPointFreeExpr.getRight(), halfPointFreeExpr.getOperator());
        final PointFreeExpr transformedToPointFree = new PointFreeExpr(halfPointFreeExpr.getTokenRange().orElseThrow(() -> new IllegalStateException("Token range is not present!")), parentLeft, halfPointFreeExpr.getRight(), halfPointFreeExpr.getOperator(), halfPointFreeExpr.isNegated(), halfPointFreeExpr.getArg1(), halfPointFreeExpr.getArg2(), halfPointFreeExpr.getArg3(), halfPointFreeExpr.getArg4());
        return optLeft.map(left -> new TypedExpression(opSpec.getExpression(ruleContext, transformedToPointFree, left, this), left.getType()).setStatic(opSpec.isStatic()).setLeft(left));
    }
    if (drlxExpr instanceof ArrayAccessExpr) {
        final ArrayAccessExpr arrayAccessExpr = (ArrayAccessExpr) drlxExpr;
        if (Map.class.isAssignableFrom(typeCursor)) {
            return createMapAccessExpression(arrayAccessExpr.getIndex(), arrayAccessExpr.getName() instanceof ThisExpr ? new NameExpr(THIS_PLACEHOLDER) : arrayAccessExpr.getName(), Map.class);
        } else if (arrayAccessExpr.getName() instanceof FieldAccessExpr) {
            Optional<TypedExpression> typedExpression = toTypedExpressionFromMethodCallOrField(drlxExpr).getTypedExpression();
            typedExpression.ifPresent(te -> {
                final Expression originalExpression = te.getExpression();
                DrlxParseUtil.removeRootNode(originalExpression);
            });
            return typedExpression;
        } else {
            String name = printNode(drlxExpr.asArrayAccessExpr().getName());
            final Optional<TypedExpression> nameExpr = nameExpr(name, typeCursor);
            Expression indexExpr = toTypedExpressionFromMethodCallOrField(arrayAccessExpr.getIndex()).getTypedExpression().orElseThrow(() -> new NoSuchElementException("TypedExpressionResult doesn't contain TypedExpression!")).getExpression();
            return nameExpr.flatMap(te -> transformToArrayOrMapExpressionWithType(indexExpr, te));
        }
    }
    if (drlxExpr instanceof InstanceOfExpr) {
        InstanceOfExpr instanceOfExpr = (InstanceOfExpr) drlxExpr;
        ruleContext.addInlineCastType(printNode(instanceOfExpr.getExpression()), instanceOfExpr.getType());
        return toTypedExpressionRec(instanceOfExpr.getExpression()).map(e -> new TypedExpression(new InstanceOfExpr(e.getExpression(), instanceOfExpr.getType()), boolean.class));
    }
    if (drlxExpr instanceof ClassExpr) {
        return of(new TypedExpression(drlxExpr, Class.class));
    }
    if (drlxExpr instanceof InlineCastExpr) {
        return toTypedExpressionFromMethodCallOrField(drlxExpr).getTypedExpression();
    }
    if (drlxExpr instanceof OOPathExpr) {
        Class<?> type = patternType;
        for (OOPathChunk chunk : ((OOPathExpr) drlxExpr).getChunks()) {
            final String fieldName = chunk.getField().toString();
            final TypedExpression callExpr = DrlxParseUtil.nameExprToMethodCallExpr(fieldName, type, null, ruleContext);
            if (callExpr == null) {
                return empty();
            }
            Class<?> fieldType = (chunk.getInlineCast() != null) ? DrlxParseUtil.getClassFromContext(ruleContext.getTypeResolver(), chunk.getInlineCast().toString()) : callExpr.getRawClass();
            if (!chunk.isSingleValue() && Iterable.class.isAssignableFrom(fieldType) || isDataSource(fieldType)) {
                type = extractGenericType(type, ((MethodCallExpr) callExpr.getExpression()).getName().toString());
            } else {
                type = fieldType;
            }
        }
        return of(new TypedExpression(drlxExpr, type));
    }
    if (drlxExpr.isAssignExpr()) {
        AssignExpr assignExpr = drlxExpr.asAssignExpr();
        final Expression rightSide = assignExpr.getValue();
        return toTypedExpressionRec(rightSide).map(e -> {
            final AssignExpr newExpression = new AssignExpr(assignExpr.getTarget(), e.getExpression(), assignExpr.getOperator());
            return new TypedExpression(newExpression, e.getType());
        });
    }
    throw new UnsupportedOperationException();
}

Example 2 with EnclosedExpr

use of com.github.javaparser.ast.expr.EnclosedExpr in project drools by kiegroup.

the class SingleDrlxParseSuccess method combineWith.

@Override
public DrlxParseResult combineWith(DrlxParseResult other, BinaryExpr.Operator operator) {
    if (!other.isSuccess()) {
        return other;
    }
    SingleDrlxParseSuccess otherDrlx = (SingleDrlxParseSuccess) other;
    Collection<String> newUsedDeclarations = new LinkedHashSet<>();
    newUsedDeclarations.addAll(this.usedDeclarations);
    newUsedDeclarations.addAll(otherDrlx.usedDeclarations);
    Collection<String> newUsedDeclarationsOnLeft = null;
    if (this.usedDeclarationsOnLeft != null && otherDrlx.usedDeclarationsOnLeft != null) {
        newUsedDeclarationsOnLeft = new LinkedHashSet<>();
        newUsedDeclarationsOnLeft.addAll(this.usedDeclarationsOnLeft);
        newUsedDeclarationsOnLeft.addAll(otherDrlx.usedDeclarationsOnLeft);
    }
    Set<String> newReactOnProperties = new HashSet<>();
    newReactOnProperties.addAll(this.reactOnProperties);
    newReactOnProperties.addAll(otherDrlx.reactOnProperties);
    List<Expression> newNullSafeExpressions = new ArrayList<>();
    if (operator == BinaryExpr.Operator.OR) {
        // NullSafeExpressions are combined here because the order is complex
        this.expr = combinePredicatesWithAnd(this.expr, this.nullSafeExpressions);
        otherDrlx.expr = combinePredicatesWithAnd(otherDrlx.expr, otherDrlx.nullSafeExpressions);
        // Also combine implicitCast earlier than null-check
        this.expr = combinePredicatesWithAnd(this.expr, StreamUtils.optionalToList(this.implicitCastExpression));
        otherDrlx.expr = combinePredicatesWithAnd(otherDrlx.expr, StreamUtils.optionalToList(otherDrlx.implicitCastExpression));
    } else {
        // NullSafeExpressions will be added by PatternDSL.addNullSafeExpr
        newNullSafeExpressions.addAll(this.nullSafeExpressions);
        newNullSafeExpressions.addAll(otherDrlx.nullSafeExpressions);
    }
    return new SingleDrlxParseSuccess(patternType, patternBinding, new EnclosedExpr(new BinaryExpr(expr, otherDrlx.expr, operator)), exprType).setDecodeConstraintType(Index.ConstraintType.UNKNOWN).setUsedDeclarations(newUsedDeclarations).setUsedDeclarationsOnLeft(newUsedDeclarationsOnLeft).setUnification(this.isUnification() || otherDrlx.isUnification()).setCombined(true).setReactOnProperties(newReactOnProperties).setBetaConstraint(betaConstraint).setLeft(new TypedExpression(this.expr, left != null ? left.getType() : boolean.class)).setRight(new TypedExpression(otherDrlx.expr, right != null ? right.getType() : boolean.class)).setBoundExpr(left).setIsPredicate(this.isPredicate && otherDrlx.isPredicate).setNullSafeExpressions(newNullSafeExpressions).setExprBinding(// only left exprBinding
    this.exprBinding);
}

Example 3 with EnclosedExpr

use of com.github.javaparser.ast.expr.EnclosedExpr in project drools by kiegroup.

the class ConstraintParser method combineExpressions.

private Expression combineExpressions(List<Expression> leftPrefixExpresssions, List<Expression> rightPrefixExpresssions, Expression combo) {
    Expression inner = combo;
    if (combo.isEnclosedExpr()) {
        EnclosedExpr enclosedExpr = combo.asEnclosedExpr();
        inner = stripEnclosedExpr(enclosedExpr);
    }
    BinaryExpr binaryExpr;
    if (inner.isBinaryExpr()) {
        binaryExpr = inner.asBinaryExpr();
    } else {
        throw new RuntimeException(combo + " is not nor contains BinaryExpr");
    }
    Expression left = binaryExpr.getLeft();
    for (Expression prefixExpression : leftPrefixExpresssions) {
        left = new BinaryExpr(prefixExpression, left, BinaryExpr.Operator.AND);
    }
    binaryExpr.setLeft(left);
    Expression right = binaryExpr.getRight();
    for (Expression prefixExpression : rightPrefixExpresssions) {
        right = new BinaryExpr(prefixExpression, right, BinaryExpr.Operator.AND);
    }
    binaryExpr.setRight(right);
    return combo;
}

Example 4 with EnclosedExpr

use of com.github.javaparser.ast.expr.EnclosedExpr in project drools by kiegroup.

the class ConstraintParser method compileToJavaRecursive.

private DrlxParseResult compileToJavaRecursive(Class<?> patternType, String bindingId, ConstraintExpression constraint, Expression drlxExpr, boolean hasBind, boolean isPositional) {
    boolean isEnclosed = false;
    SimpleName bind = null;
    if (drlxExpr instanceof FullyQualifiedInlineCastExpr) {
        drlxExpr = transformFullyQualifiedInlineCastExpr(context.getTypeResolver(), (FullyQualifiedInlineCastExpr) drlxExpr);
    }
    while (drlxExpr instanceof EnclosedExpr) {
        drlxExpr = ((EnclosedExpr) drlxExpr).getInner();
        isEnclosed = true;
    }
    if (drlxExpr instanceof DrlxExpression) {
        bind = ((DrlxExpression) drlxExpr).getBind();
        drlxExpr = ((DrlxExpression) drlxExpr).getExpr();
    }
    if (drlxExpr instanceof MethodCallExpr && !((MethodCallExpr) drlxExpr).getScope().isPresent() && ((MethodCallExpr) drlxExpr).getNameAsString().equals("eval")) {
        drlxExpr = ((MethodCallExpr) drlxExpr).getArgument(0);
    }
    if (drlxExpr instanceof BinaryExpr) {
        DrlxParseResult result = parseBinaryExpr((BinaryExpr) drlxExpr, patternType, bindingId, constraint, drlxExpr, hasBind, isPositional, isEnclosed);
        if (result instanceof SingleDrlxParseSuccess && bind != null) {
            ((SingleDrlxParseSuccess) result).setExprBinding(bind.asString());
        }
        return result;
    }
    if (drlxExpr instanceof UnaryExpr) {
        return parseUnaryExpr((UnaryExpr) drlxExpr, patternType, bindingId, constraint, drlxExpr, hasBind, isPositional);
    }
    if (drlxExpr instanceof PointFreeExpr) {
        return parsePointFreeExpr((PointFreeExpr) drlxExpr, patternType, bindingId, isPositional);
    }
    if (patternType == null && drlxExpr instanceof MethodCallExpr) {
        MethodCallExpr methodCallExpr = (MethodCallExpr) drlxExpr;
        Optional<MethodDeclaration> functionCall = packageModel.getFunctions().stream().filter(m -> m.getName().equals(methodCallExpr.getName())).findFirst();
        if (functionCall.isPresent()) {
            return parseFunctionInEval(methodCallExpr, patternType, bindingId, isPositional, functionCall);
        }
    }
    if (drlxExpr instanceof FieldAccessExpr) {
        return parseFieldAccessExpr((FieldAccessExpr) drlxExpr, patternType, bindingId);
    }
    String expression = constraint.getExpression();
    if (drlxExpr instanceof DrlNameExpr) {
        return parseNameExpr((DrlNameExpr) drlxExpr, patternType, bindingId, drlxExpr, hasBind, expression);
    }
    if (drlxExpr instanceof OOPathExpr) {
        return parseOOPathExpr((OOPathExpr) drlxExpr, patternType, bindingId, drlxExpr, hasBind, expression);
    }
    if (drlxExpr instanceof LiteralExpr) {
        Class<?> literalExpressionType = getLiteralExpressionType(((LiteralExpr) drlxExpr));
        return new SingleDrlxParseSuccess(patternType, bindingId, drlxExpr, literalExpressionType).setIsPredicate(isBooleanBoxedUnboxed(literalExpressionType));
    }
    if (patternType != null) {
        ExpressionTyperContext expressionTyperContext = new ExpressionTyperContext();
        ExpressionTyper expressionTyper = new ExpressionTyper(context, patternType, bindingId, isPositional, expressionTyperContext);
        TypedExpressionResult leftTypedExpressionResult = expressionTyper.toTypedExpression(drlxExpr);
        Optional<TypedExpression> optLeft = leftTypedExpressionResult.getTypedExpression();
        if (!optLeft.isPresent()) {
            return new DrlxParseFail();
        }
        TypedExpression left = optLeft.get();
        Expression combo = left.getExpression();
        Type exprType = left.getType();
        boolean isPredicate = isBooleanBoxedUnboxed(exprType);
        if (isPredicate) {
            combo = combineExpressions(leftTypedExpressionResult, combo);
        }
        return new SingleDrlxParseSuccess(patternType, bindingId, combo, exprType).setReactOnProperties(expressionTyperContext.getReactOnProperties()).setUsedDeclarations(expressionTyperContext.getUsedDeclarations()).setImplicitCastExpression(expressionTyperContext.getInlineCastExpression()).setNullSafeExpressions(expressionTyperContext.getNullSafeExpressions()).setIsPredicate(isPredicate);
    } else {
        final ExpressionTyperContext expressionTyperContext = new ExpressionTyperContext();
        final ExpressionTyper expressionTyper = new ExpressionTyper(context, null, bindingId, isPositional, expressionTyperContext);
        TypedExpressionResult leftTypedExpressionResult = expressionTyper.toTypedExpression(drlxExpr);
        Optional<TypedExpression> optLeft = leftTypedExpressionResult.getTypedExpression();
        if (!optLeft.isPresent()) {
            return new DrlxParseFail();
        }
        TypedExpression left = optLeft.get();
        return new SingleDrlxParseSuccess(null, bindingId, drlxExpr, left.getType()).setUsedDeclarations(expressionTyperContext.getUsedDeclarations()).setIsPredicate(true);
    }
}

Example 5 with EnclosedExpr

use of com.github.javaparser.ast.expr.EnclosedExpr in project drools by kiegroup.

the class DrlxParseUtil method rescopeNamesToNewScope.

/**
 * Mutates expression
 * such that, if it contains a NameExpr for any of the <code>names</code>,
 * it is replaced with a FieldAccessExpr having <code>newScope</code> as the scope.
 */
public static void rescopeNamesToNewScope(Expression newScope, List<String> names, Node e) {
    if (e instanceof NodeWithArguments) {
        NodeWithArguments<?> arguments = (NodeWithArguments) e;
        for (Expression argument : arguments.getArguments()) {
            rescopeNamesToNewScope(newScope, names, argument);
        }
    }
    if (e instanceof AssignExpr) {
        AssignExpr assignExpr = (AssignExpr) e;
        rescopeNamesToNewScope(newScope, names, assignExpr.getTarget());
        rescopeNamesToNewScope(newScope, names, assignExpr.getValue());
    } else if (e instanceof BinaryExpr) {
        rescopeNamesToNewScope(newScope, names, ((BinaryExpr) e).getLeft());
        rescopeNamesToNewScope(newScope, names, ((BinaryExpr) e).getRight());
    } else if (e instanceof UnaryExpr) {
        rescopeNamesToNewScope(newScope, names, ((UnaryExpr) e).getExpression());
    } else if (e instanceof EnclosedExpr) {
        rescopeNamesToNewScope(newScope, names, ((EnclosedExpr) e).getInner());
    } else if (e instanceof Expression) {
        Optional<Expression> rootNode = DrlxParseUtil.findRootNodeViaScope((Expression) e);
        if (rootNode.isPresent() && rootNode.get() instanceof NameExpr) {
            NameExpr nameExpr = (NameExpr) rootNode.get();
            if (names.contains(nameExpr.getNameAsString())) {
                Expression prepend = new FieldAccessExpr(newScope, nameExpr.getNameAsString());
                if (e instanceof NameExpr) {
                    Optional<Node> parentNode = e.getParentNode();
                    if (parentNode.isPresent()) {
                        // actually `e` was not composite, it was already the NameExpr node I was looking to replace.
                        parentNode.get().replace(nameExpr, prepend);
                    } else {
                        throw new IllegalStateException("Cannot find parent node for " + ((NameExpr) e).getNameAsString() + "!");
                    }
                } else {
                    e.replace(nameExpr, prepend);
                }
            }
        }
    } else {
        for (Node child : e.getChildNodes()) {
            rescopeNamesToNewScope(newScope, names, child);
        }
    }
}