Package com.alibaba.druid.sql.ast.expr

Examples of com.alibaba.druid.sql.ast.expr.SQLBinaryOpExpr

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            lexer.nextToken();
            SQLExpr rightExp = primary();

            rightExp = relationalRest(rightExp);

            return new SQLBinaryOpExpr(expr, SQLBinaryOperator.Modulus, rightExp);
        }

        return super.multiplicativeRest(expr);
    }
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            lexer.nextToken();
            SQLExpr rightExp = primary();

            rightExp = relationalRest(rightExp);

            return new SQLBinaryOpExpr(expr, SQLBinaryOperator.NotRegExp, rightExp);
        }

        return super.notRationalRest(expr);
    }
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                }

                String collate = lexer.stringVal();
                lexer.nextToken();

                SQLBinaryOpExpr binaryExpr = new SQLBinaryOpExpr(expr, SQLBinaryOperator.COLLATE, new SQLIdentifierExpr(collate));

                expr = binaryExpr;

                return primaryRest(expr);
            } else if (expr instanceof SQLVariantRefExpr) {
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            }
            return x;
        }

        if (x.getRight() instanceof SQLLiteralExpr) {
            x = new SQLBinaryOpExpr(x.getLeft(), x.getOperator(), new SQLVariantRefExpr("?"));
        }

        if (x.getLeft() instanceof SQLLiteralExpr) {
            x = new SQLBinaryOpExpr(new SQLVariantRefExpr("?"), x.getOperator(), x.getRight());
        }

        if (x.getRight() instanceof SQLBinaryOpExpr) {
            x = new SQLBinaryOpExpr(x.getLeft(), x.getOperator(), merge((SQLBinaryOpExpr) x.getRight()));
        }

        if (x.getLeft() instanceof SQLBinaryOpExpr) {
            x = new SQLBinaryOpExpr(merge((SQLBinaryOpExpr) x.getLeft()), x.getOperator(), x.getRight());
        }

        // ID = ? OR ID = ? => ID = ?
        if (x.getOperator() == SQLBinaryOperator.BooleanOr) {
            if ((x.getLeft() instanceof SQLBinaryOpExpr) && (x.getRight() instanceof SQLBinaryOpExpr)) {
                SQLBinaryOpExpr left = (SQLBinaryOpExpr) x.getLeft();
                SQLBinaryOpExpr right = (SQLBinaryOpExpr) x.getRight();

                if (mergeEqual(left, right)) {
                    return left;
                }
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        }
        if (!(b instanceof SQLBinaryOpExpr)) {
            return false;
        }

        SQLBinaryOpExpr binaryA = (SQLBinaryOpExpr) a;
        SQLBinaryOpExpr binaryB = (SQLBinaryOpExpr) b;

        if (binaryA.getOperator() != SQLBinaryOperator.Equality) {
            return false;
        }

        if (binaryB.getOperator() != SQLBinaryOperator.Equality) {
            return false;
        }

        if (!(binaryA.getRight() instanceof SQLLiteralExpr || binaryA.getRight() instanceof SQLVariantRefExpr)) {
            return false;
        }

        if (!(binaryB.getRight() instanceof SQLLiteralExpr || binaryB.getRight() instanceof SQLVariantRefExpr)) {
            return false;
        }

        return binaryA.getLeft().toString().equals(binaryB.getLeft().toString());
    }
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        if (expr instanceof SQLLiteralExpr) {
            return true;
        }

        if (expr instanceof SQLBinaryOpExpr) {
            SQLBinaryOpExpr binary = (SQLBinaryOpExpr) expr;
            return isLiteralExpr(binary.getLeft()) && isLiteralExpr(binary.getRight());
        }

        return false;
    }
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        }

        for (;;) {
            if (x.getRight() instanceof SQLBinaryOpExpr) {
                if (x.getLeft() instanceof SQLBinaryOpExpr) {
                    SQLBinaryOpExpr leftBinaryExpr = (SQLBinaryOpExpr) x.getLeft();
                    if (leftBinaryExpr.getRight().equals(x.getRight())) {
                        x = leftBinaryExpr;
                        v.incrementReplaceCunt();
                        continue;
                    }
                }
                SQLExpr mergedRight = merge(v, (SQLBinaryOpExpr) x.getRight());
                if (mergedRight != x.getRight()) {
                    x = new SQLBinaryOpExpr(x.getLeft(), x.getOperator(), mergedRight);
                    v.incrementReplaceCunt();
                }
                x.setParent(parent);
            }

            break;
        }

        if (x.getLeft() instanceof SQLBinaryOpExpr) {
            SQLExpr mergedLeft = merge(v, (SQLBinaryOpExpr) x.getLeft());
            if (mergedLeft != x.getLeft()) {
                x = new SQLBinaryOpExpr(mergedLeft, x.getOperator(), x.getRight());
                v.incrementReplaceCunt();
            }
            x.setParent(parent);
        }

        // ID = ? OR ID = ? => ID = ?
        if (x.getOperator() == SQLBinaryOperator.BooleanOr) {
            if ((left instanceof SQLBinaryOpExpr) && (right instanceof SQLBinaryOpExpr)) {
                SQLBinaryOpExpr leftBinary = (SQLBinaryOpExpr) x.getLeft();
                SQLBinaryOpExpr rightBinary = (SQLBinaryOpExpr) x.getRight();

                if (mergeEqual(leftBinary, rightBinary)) {
                    v.incrementReplaceCunt();
                    return leftBinary;
                }
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        }
        if (!(b instanceof SQLBinaryOpExpr)) {
            return false;
        }

        SQLBinaryOpExpr binaryA = (SQLBinaryOpExpr) a;
        SQLBinaryOpExpr binaryB = (SQLBinaryOpExpr) b;

        if (binaryA.getOperator() != SQLBinaryOperator.Equality) {
            return false;
        }

        if (binaryB.getOperator() != SQLBinaryOperator.Equality) {
            return false;
        }

        if (!(binaryA.getRight() instanceof SQLLiteralExpr || binaryA.getRight() instanceof SQLVariantRefExpr)) {
            return false;
        }

        if (!(binaryB.getRight() instanceof SQLLiteralExpr || binaryB.getRight() instanceof SQLVariantRefExpr)) {
            return false;
        }

        return binaryA.getLeft().toString().equals(binaryB.getLeft().toString());
    }
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        if (expr instanceof SQLLiteralExpr) {
            return true;
        }

        if (expr instanceof SQLBinaryOpExpr) {
            SQLBinaryOpExpr binary = (SQLBinaryOpExpr) expr;
            return isLiteralExpr(binary.getLeft()) && isLiteralExpr(binary.getRight());
        }

        return false;
    }
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        List<SQLExpr> groupList = new ArrayList<SQLExpr>();
        SQLExpr left = x.getLeft();
        for (;;) {
            if (left instanceof SQLBinaryOpExpr && ((SQLBinaryOpExpr) left).getOperator() == x.getOperator()) {
                SQLBinaryOpExpr binaryLeft = (SQLBinaryOpExpr) left;
                groupList.add(binaryLeft.getRight());
                left = binaryLeft.getLeft();
            } else {
                groupList.add(left);
                break;
            }
        }
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