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// Similar test as "cacheir/map-has-string.js", except that we now perform
// duplicate lookups to ensure GVN works properly.
// Return a new map, possibly filling some dummy entries to enforce creating
// multiple hash buckets.
function createMap(values, n) {
var xs = [...values];
for (var i = 0; i < n; ++i) {
xs.push({});
}
return new Map(xs.map((x, i) => [x, i]));
}
function runTest(fn) {
fn(0);
fn(100);
}
function testConstant_same_map(n) {
var xs = ["a", "b"];
var ys = ["c", "d"];
var zs = [...xs, ...ys];
var map = createMap(xs, n);
var N = 100;
var c = 0;
for (var i = 0; i < N; ++i) {
var z = zs[i & 3];
if (map.has(z)) c++;
if (map.has(z)) c++;
}
assertEq(c, N);
}
runTest(testConstant_same_map);
function testComputed_same_map(n) {
var xs = ["a", "b"];
var ys = ["c", "d"];
var zs = [...xs, ...ys];
var map = createMap(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 (map.has(z)) c++;
if (map.has(z)) c++;
}
assertEq(c, N);
}
runTest(testComputed_same_map);
function testRope_same_map(n) {
var xs = ["a", "b"];
var ys = ["c", "d"];
var zs = [...xs, ...ys];
var map = createMap(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 (map.has(z)) c++;
if (map.has(z)) c++;
}
assertEq(c, N);
}
runTest(testRope_same_map);
// Duplicate the above tests, but this time use a different map.
function testConstant_different_map(n) {
var xs = ["a", "b"];
var ys = ["c", "d"];
var zs = [...xs, ...ys];
var map1 = createMap(xs, n);
var map2 = createMap(xs, n);
var N = 100;
var c = 0;
for (var i = 0; i < N; ++i) {
var z = zs[i & 3];
if (map1.has(z)) c++;
if (map2.has(z)) c++;
}
assertEq(c, N);
}
runTest(testConstant_different_map);
function testComputed_different_map(n) {
var xs = ["a", "b"];
var ys = ["c", "d"];
var zs = [...xs, ...ys];
var map1 = createMap(xs, n);
var map2 = createMap(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 (map1.has(z)) c++;
if (map2.has(z)) c++;
}
assertEq(c, N);
}
runTest(testComputed_different_map);
function testRope_different_map(n) {
var xs = ["a", "b"];
var ys = ["c", "d"];
var zs = [...xs, ...ys];
var map1 = createMap(xs.map(x => x.repeat(100)), n);
var map2 = createMap(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 (map1.has(z)) c++;
if (map2.has(z)) c++;
}
assertEq(c, N);
}
runTest(testRope_different_map);
// Test the alias information is correct.
function test_alias(n) {
var xs = ["a", "b"];
var map = createMap([], n);
var N = 100;
var c = 0;
for (var i = 0; i < N; ++i) {
var x = xs[i & 1];
map.set(x, x);
if (map.has(x)) c++;
map.delete(x);
if (map.has(x)) c++;
}
assertEq(c, N);
}
runTest(test_alias);
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