bailout-env.js - mozsearch

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function inner_env() {

    let result = [];

    let x = 0;

    result.push(() => x);

    var tmp = [1,2,3];

    for (let y in tmp)

        result.push(() => tmp[y])

    for (let z = 4; z < 7; z++)

        result.push(() => z)

    return result;

function outer_env() {

    let result = inner_env();

    var tmp = [7,8,9];

    for (let x in tmp)

        result.push(() => tmp[x])

    return result;

function check_result(result, expectedLen) {

    assertEq(result.length, expectedLen);

    for (var i = 0; i < expectedLen; ++i)

        assertEq(result[i], i);

// Wipeout jitcode

bailout();

gc(); gc();

// Test lexical environment bailouts

for (var i = 0; i < 100; ++i)

    bailAfter(i);

    var result = inner_env().map(fn => fn());

    check_result(result, 7);

// Test inlined lexical environment bailouts

for (var i = 0; i < 100; ++i)

    bailAfter(i);

    var result = outer_env().map(fn => fn());

    check_result(result, 10);