47 lines
2.2 KiB
JavaScript
47 lines
2.2 KiB
JavaScript
"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
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exports.buildCompareFunctionArbitrary = buildCompareFunctionArbitrary;
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const TextEscaper_1 = require("../helpers/TextEscaper");
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const symbols_1 = require("../../../check/symbols");
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const hash_1 = require("../../../utils/hash");
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const stringify_1 = require("../../../utils/stringify");
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const integer_1 = require("../../integer");
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const noShrink_1 = require("../../noShrink");
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const tuple_1 = require("../../tuple");
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const globals_1 = require("../../../utils/globals");
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const safeObjectAssign = Object.assign;
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const safeObjectKeys = Object.keys;
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function buildCompareFunctionArbitrary(cmp) {
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return (0, tuple_1.tuple)((0, noShrink_1.noShrink)((0, integer_1.integer)()), (0, noShrink_1.noShrink)((0, integer_1.integer)({ min: 1, max: 0xffffffff }))).map(([seed, hashEnvSize]) => {
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const producer = () => {
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const recorded = {};
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const f = (a, b) => {
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const reprA = (0, stringify_1.stringify)(a);
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const reprB = (0, stringify_1.stringify)(b);
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const hA = (0, hash_1.hash)(`${seed}${reprA}`) % hashEnvSize;
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const hB = (0, hash_1.hash)(`${seed}${reprB}`) % hashEnvSize;
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const val = cmp(hA, hB);
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recorded[`[${reprA},${reprB}]`] = val;
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return val;
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};
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return safeObjectAssign(f, {
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toString: () => {
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const seenValues = safeObjectKeys(recorded)
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.sort()
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.map((k) => `${k} => ${(0, stringify_1.stringify)(recorded[k])}`)
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.map((line) => `/* ${(0, TextEscaper_1.escapeForMultilineComments)(line)} */`);
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return `function(a, b) {
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// With hash and stringify coming from fast-check${seenValues.length !== 0 ? `\n ${(0, globals_1.safeJoin)(seenValues, '\n ')}` : ''}
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const cmp = ${cmp};
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const hA = hash('${seed}' + stringify(a)) % ${hashEnvSize};
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const hB = hash('${seed}' + stringify(b)) % ${hashEnvSize};
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return cmp(hA, hB);
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}`;
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},
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[symbols_1.cloneMethod]: producer,
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});
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};
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return producer();
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});
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}
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