@uwdata/mosaic-sql/dist/src/ast/logical-op.js

SQL query construction and analysis.

import { LOGICAL_OPERATOR } from '../constants.js';
import { ExprNode } from './node.js';
export class LogicalOpNode extends ExprNode {
    /** The logical operator */
    op;
    /** The clause expressions. */
    clauses;
    /**
     * Instantiate a logical operator node.
     * @param op The logical operation.
     * @param clauses The input clause expressions.
     */
    constructor(op, clauses) {
        super(LOGICAL_OPERATOR);
        this.op = op;
        this.clauses = clauses;
    }
    /**
     * Generate a SQL query string for this node.
     */
    toString() {
        const c = this.clauses;
        return c.length === 0 ? ''
            : c.length === 1 ? `${c[0]}`
                : `(${c.join(` ${this.op} `)})`;
    }
}
export class AndNode extends LogicalOpNode {
    /**
     * Instantiate a logical AND operator node.
     * @param clauses The input clause expressions.
     */
    constructor(clauses) {
        super('AND', clauses);
    }
}
export class OrNode extends LogicalOpNode {
    /**
     * Instantiate a logical OR operator node.
     * @param clauses The input clause expressions.
     */
    constructor(clauses) {
        super('OR', clauses);
    }
}
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