Initial commit

node_modules/fast-check/lib/arbitrary/_internals/helpers/ShrinkBigInt.js

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+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.shrinkBigInt = shrinkBigInt;
+const Stream_1 = require("../../../stream/Stream");
+const Value_1 = require("../../../check/arbitrary/definition/Value");
+const globals_1 = require("../../../utils/globals");
+function halveBigInt(n) {
+    return n / (0, globals_1.BigInt)(2);
+}
+function shrinkBigInt(current, target, tryTargetAsap) {
+    const realGap = current - target;
+    function* shrinkDecr() {
+        let previous = tryTargetAsap ? undefined : target;
+        const gap = tryTargetAsap ? realGap : halveBigInt(realGap);
+        for (let toremove = gap; toremove > 0; toremove = halveBigInt(toremove)) {
+            const next = current - toremove;
+            yield new Value_1.Value(next, previous);
+            previous = next;
+        }
+    }
+    function* shrinkIncr() {
+        let previous = tryTargetAsap ? undefined : target;
+        const gap = tryTargetAsap ? realGap : halveBigInt(realGap);
+        for (let toremove = gap; toremove < 0; toremove = halveBigInt(toremove)) {
+            const next = current - toremove;
+            yield new Value_1.Value(next, previous);
+            previous = next;
+        }
+    }
+    return realGap > 0 ? (0, Stream_1.stream)(shrinkDecr()) : (0, Stream_1.stream)(shrinkIncr());
+}