Environment-names-02.js

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// env.names() on object environments ignores property names that are not identifiers.

var g = newGlobal({newCompartment: true});

var dbg = Debugger(g);

var withNames, globalNames;

g.h = function () {

    var env = dbg.getNewestFrame().environment;

    withNames = env.names();

    while (env.parent !== null)

        env = env.parent;

    globalNames = env.names();

};

g.eval("" +

       function fill(obj) {

           obj.sanityCheck = 1;

           obj["0xcafe"] = 2;

           obj[" "] = 3;

           obj[""] = 4;

           obj[0] = 5;

           obj[Symbol.for("moon")] = 6;

           return obj;

})

g.eval("fill(this);\n" +

       "with (fill({})) h();");

for (var names of [withNames, globalNames]) {

    assertEq(names.indexOf("sanityCheck") !== -1, true);

    assertEq(names.indexOf("0xcafe"), -1);

    assertEq(names.indexOf(" "), -1);

    assertEq(names.indexOf(""), -1);

    assertEq(names.indexOf("0"), -1);

    assertEq(names.indexOf(Symbol.for("moon")), -1);