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load(libdir + "asserts.js");
var g = newGlobal({newCompartment: true});
var dbg = new Debugger;
var gDO = dbg.addDebuggee(g);
function check(expr, expected) {
let completion = gDO.executeInGlobal(expr);
if (completion.throw)
throw completion.throw.unsafeDereference();
let fn = completion.return;
if (expected === undefined)
assertEq(fn.script.parameterNames, undefined);
else
assertDeepEq(fn.script.parameterNames, expected);
}
check('(function () {})', []);
check('(function (x) {})', ["x"]);
check('(function (x = 1) {})', ["x"]);
check('(function (a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t,u,v,w,x,y,z) {})',
["a","b","c","d","e","f","g","h","i","j","k","l","m",
"n","o","p","q","r","s","t","u","v","w","x","y","z"]);
check('(function (a, [b, c], {d, e:f}) { })',
["a", undefined, undefined]);
check('(async function (a, b, c) {})', ["a", "b", "c"]);
check('(async function* (d, e, f) {})', ["d", "e", "f"]);
// Non-function scripts have |undefined| parameterNames.
var log = [];
dbg.onEnterFrame = function(frame) {
log.push(frame.script.parameterNames);
};
g.evaluate("function foo(a, b) { return eval('1'); }; foo();");
assertDeepEq(log, [undefined, ["a", "b"], undefined]); // global, function, eval
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