Mypal/js/src/jit-test/tests/modules/global-scope.js

// Test interaction with global object and global lexical scope.

function evalModuleAndCheck(source, expected) {
    let m = parseModule(source);
    m.declarationInstantiation();
    m.evaluation();
    assertEq(getModuleEnvironmentValue(m, "r"), expected);
}

var x = 1;
evalModuleAndCheck("export let r = x; x = 2;", 1);
assertEq(x, 2);

let y = 3;
evalModuleAndCheck("export let r = y; y = 4;", 3);
assertEq(y, 4);

if (helperThreadCount() == 0)
    quit();

function offThreadEvalModuleAndCheck(source, expected) {
    offThreadCompileModule(source);
    let m = finishOffThreadModule();
    print("compiled");
    m.declarationInstantiation();
    m.evaluation();
    assertEq(getModuleEnvironmentValue(m, "r"), expected);
}

offThreadEvalModuleAndCheck("export let r = x; x = 5;", 2);
assertEq(x, 5);

offThreadEvalModuleAndCheck("export let r = y; y = 6;", 4);
assertEq(y, 6);