eif-generator.js - mozsearch

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load(libdir + "evalInFrame.js");

function* f() {

        let x = 1;

        while (true) {

            yield evalInFrame(0, "x");

            x++;

                let y = 1;

                yield evalInFrame(0, "++y");

                yield evalInFrame(0, "++y");

var gen = f();

assertEq(gen.next().value, 1);

assertEq(gen.next().value, 2);

gc();

assertEq(gen.next().value, 3);

gc();

assertEq(gen.next().value, 2);

assertEq(gen.next().value, 2);

gc();

assertEq(gen.next().value, 3);

gc();

assertEq(gen.next().value, 3);

assertEq(gen.next().value, 2);

gc();

assertEq(gen.next().value, 3);

gen = null;

gc();

function* g() {

        let x = 1;

        while (true) {

            var inner = function (inc) { x += inc; return evalInFrame(0, "x") };

            assertEq(inner(0), x);

            yield inner;

            assertEq(inner(0), x);

var gen = g();

var g1 = gen.next().value;

var g2 = gen.next().value;

gc();

assertEq(g1(1), 2);

assertEq(g2(1), 3);

gc();

assertEq(g1(1), 4);

assertEq(g2(1), 5);

gen = g1 = g2 = null;

gc();