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// Similar test as "cacheir/set-has-string.js", except that we now perform
// duplicate lookups to ensure GVN works properly.
// Return a new set, possibly filling some dummy entries to enforce creating
// multiple hash buckets.
function createSet(values, n) {
var xs = [...values];
for (var i = 0; i < n; ++i) {
xs.push({});
}
return new Set(xs);
}
function runTest(fn) {
fn(0);
fn(100);
}
function testConstant_same_set(n) {
var xs = ["a", "b"];
var ys = ["c", "d"];
var zs = [...xs, ...ys];
var set = createSet(xs, n);
var N = 100;
var c = 0;
for (var i = 0; i < N; ++i) {
var z = zs[i & 3];
if (set.has(z)) c++;
if (set.has(z)) c++;
}
assertEq(c, N);
}
runTest(testConstant_same_set);
function testComputed_same_set(n) {
var xs = ["a", "b"];
var ys = ["c", "d"];
var zs = [...xs, ...ys];
var set = createSet(xs, n);
var N = 100;
var c = 0;
for (var i = 0; i < N; ++i) {
var z = zs[i & 3];
z = String.fromCharCode(z.charCodeAt(0));
if (set.has(z)) c++;
if (set.has(z)) c++;
}
assertEq(c, N);
}
runTest(testComputed_same_set);
function testRope_same_set(n) {
var xs = ["a", "b"];
var ys = ["c", "d"];
var zs = [...xs, ...ys];
var set = createSet(xs.map(x => x.repeat(100)), n);
var N = 100;
var c = 0;
for (var i = 0; i < N; ++i) {
var z = zs[i & 3].repeat(100);
if (set.has(z)) c++;
if (set.has(z)) c++;
}
assertEq(c, N);
}
runTest(testRope_same_set);
// Duplicate the above tests, but this time use a different set.
function testConstant_different_set(n) {
var xs = ["a", "b"];
var ys = ["c", "d"];
var zs = [...xs, ...ys];
var set1 = createSet(xs, n);
var set2 = createSet(xs, n);
var N = 100;
var c = 0;
for (var i = 0; i < N; ++i) {
var z = zs[i & 3];
if (set1.has(z)) c++;
if (set2.has(z)) c++;
}
assertEq(c, N);
}
runTest(testConstant_different_set);
function testComputed_different_set(n) {
var xs = ["a", "b"];
var ys = ["c", "d"];
var zs = [...xs, ...ys];
var set1 = createSet(xs, n);
var set2 = createSet(xs, n);
var N = 100;
var c = 0;
for (var i = 0; i < N; ++i) {
var z = zs[i & 3];
z = String.fromCharCode(z.charCodeAt(0));
if (set1.has(z)) c++;
if (set2.has(z)) c++;
}
assertEq(c, N);
}
runTest(testComputed_different_set);
function testRope_different_set(n) {
var xs = ["a", "b"];
var ys = ["c", "d"];
var zs = [...xs, ...ys];
var set1 = createSet(xs.map(x => x.repeat(100)), n);
var set2 = createSet(xs.map(x => x.repeat(100)), n);
var N = 100;
var c = 0;
for (var i = 0; i < N; ++i) {
var z = zs[i & 3].repeat(100);
if (set1.has(z)) c++;
if (set2.has(z)) c++;
}
assertEq(c, N);
}
runTest(testRope_different_set);
// Test the alias information is correct.
function test_alias(n) {
var xs = ["a", "b"];
var set = createSet([], n);
var N = 100;
var c = 0;
for (var i = 0; i < N; ++i) {
var x = xs[i & 1];
set.add(x);
if (set.has(x)) c++;
set.delete(x);
if (set.has(x)) c++;
}
assertEq(c, N);
}
runTest(test_alias);