ts-prims/lib/cjs/chars.js

Typescript Primitives

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.charsConstraint = exports.lengthOf = void 0;
const length_js_1 = require("./length.js");
const prim_js_1 = require("./prim.js");
/** Utility function to convert a low length `l` in chars back to a `LowLength`. */
const lengthOf = (l) => l == 0 ? 0 :
    l <= length_js_1.shortLengthChars[1] ? 1 :
        l == length_js_1.shortLengthChars[2] ? 2 :
            l == length_js_1.shortLengthChars[3] ? 3 :
                l == length_js_1.shortLengthChars[4] ? 4 :
                    l == length_js_1.shortLengthChars[5] ? 5 :
                        l == length_js_1.shortLengthChars[6] ? 6 :
                            7;
exports.lengthOf = lengthOf;
/** Constrains a type to the given length in chars `L`. */
const charsConstraint = (l) => {
    console.info(`charsConstraint(${l})`);
    return (pc, v) => {
        console.info(`charsConstraint(${l}):`, v);
        return (typeof v == 'string') && (v.length <= l) ? undefined :
            `${(0, prim_js_1.display)(v)} is not assignable to '${pc.name}'.\n` +
                `  Length exceeds ${l}.`;
    };
};
exports.charsConstraint = charsConstraint;
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