@informalsystems/quint/dist/src/types/base.js

Core tool for the Quint specification language

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.compareConstraints = exports.toScheme = void 0;
/** The constraint kinds, in order of "generality"
 *
 * Constraint solving is order dependent, and we need the most general constraints
 * to be solved first. "More general" is here understood to mean "requires less
 * information to solve correctly".
 */
const constraintKinds = ['empty', 'eq', 'conjunction', 'isDefined'];
// Does not bind any type variables in `type`, which we take to assume
// that `type` has no free variables in the context.
function toScheme(type) {
    return { typeVariables: new Set([]), rowVariables: new Set([]), type };
}
exports.toScheme = toScheme;
/**  compares two constraints based on the order of generality of their kind
 *
 * @returns a negative value if the kind of the first constraint is more general than the second,
 *          a positive value if the kind of the first constraint is more specific than the second,
 *          and 0 if the two constraints are the same kind.
 */
function compareConstraints(a, b) {
    const aIdx = constraintKinds.findIndex(s => s === a.kind);
    const bIdx = constraintKinds.findIndex(s => s === b.kind);
    return aIdx - bIdx;
}
exports.compareConstraints = compareConstraints;
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