jinaga/dist/purge/validate.js

Data management for web and mobile applications.

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.validatePurgeSpecification = void 0;
function validatePurgeSpecification(specification) {
    // Validate that the specification has only one given.
    if (specification.given.length !== 1) {
        return ["A purge specification must have exactly one given."];
    }
    var purgeRoot = specification.given[0];
    // Search for negative existential conditions.
    // Those indicate that the specification will reverse a purge.
    var failures = specification.matches.map(match => match.conditions
        .filter(isNegativeExistentialCondition)
        .map(condition => `A specified purge condition would reverse the purge of ${purgeRoot.type} with ${describeTuple(condition.matches)}.`)).flat();
    return failures;
}
exports.validatePurgeSpecification = validatePurgeSpecification;
function isNegativeExistentialCondition(condition) {
    return condition.type === "existential" && !condition.exists;
}
function describeTuple(matches) {
    return matches.map(match => match.unknown.type).join(", ");
}
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