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// Debugger.Memory.prototype.takeCensus behaves plausibly as we allocate objects.
// Exact object counts vary in ways we can't predict. For example,
// BaselineScripts can hold onto "template objects", which exist only to hold
// the shape and type for newly created objects. When BaselineScripts are
// discarded, these template objects go with them.
//
// So instead of expecting precise counts, we expect counts that are at least as
// many as we would expect given the object graph we've built.
load(libdir + 'census.js');
// A Debugger with no debuggees had better not find anything.
var dbg = new Debugger;
var census0 = dbg.memory.takeCensus();
Census.walkCensus(census0, "census0", Census.assertAllZeros);
function newGlobalWithDefs() {
var g = newGlobal({newCompartment: true});
g.eval(`
function times(n, fn) {
var a=[];
for (var i = 0; i<n; i++)
a.push(fn());
return a;
}`);
return g;
}
// Allocate a large number of various types of objects, and check that census
// finds them.
var g = newGlobalWithDefs();
dbg.addDebuggee(g);
g.eval('var objs = times(100, () => ({}));');
g.eval('var rxs = times(200, () => /foo/);');
g.eval('var ars = times(400, () => []);');
g.eval('var fns = times(800, () => () => {});');
var census1 = dbg.memory.takeCensus();
Census.walkCensus(census1, "census1",
Census.assertAllNotLessThan(
{ 'objects':
{ 'Object': { count: 100 },
'RegExp': { count: 200 },
'Array': { count: 400 },
'Function': { count: 800 }
}
}));
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