Frame-evalWithBindings-01.js

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// evalWithBindings basics

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

var dbg = new Debugger(g);

var hits = 0;

dbg.onDebuggerStatement = function (frame) {

    assertEq(frame.evalWithBindings("x", {x: 2}).return, 2);

    assertEq(frame.evalWithBindings("x + y", {x: 2}).return, 5);

    hits++;

};

// in global code

g.y = 3;

g.eval("debugger;");

// in function code

g.y = "fail";

g.eval("function f(y) { debugger; }");

g.f(3);

// in direct eval code

g.eval("function f() { var y = 3; eval('debugger;'); }");

g.f();

// in strict eval code with var

g.eval("function f() { 'use strict'; eval('var y = 3; debugger;'); }");

g.f();

// in a with block

g.eval("with ({y: 3}) { debugger; }");

// shadowing

g.eval("{ let x = 50, y = 3; debugger; }");

assertEq(hits, 6);