47 lines
909 B
JavaScript
47 lines
909 B
JavaScript
function assert(b, m="") {
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if (!b)
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throw new Error("Bad assertion: " + m);
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}
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noInline(assert);
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let called = false;
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function baz(c) {
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if (c) {
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Array.prototype[Symbol.iterator] = function() {
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assert(false, "should not be called!");
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let i = 0;
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return {
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next() {
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assert(false, "should not be called!");
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}
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};
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}
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}
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}
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noInline(baz);
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function bar(...args) {
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return args;
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}
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noInline(bar);
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function foo(c, ...args) {
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args = [...args];
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baz(c);
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return bar.apply(null, args);
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}
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noInline(foo);
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function test(c) {
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const args = [{}, 20, [], 45];
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let r = foo(c, ...args);
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assert(r.length === r.length);
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for (let i = 0; i < r.length; i++)
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assert(r[i] === args[i]);
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}
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noInline(test);
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for (let i = 0; i < 40000; i++) {
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test(false);
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}
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test(true);
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