/* This Source Code Form is subject to the terms of the Mozilla Public * License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
// A few wrappers for stack-manipulation. This version of the module // is used in chrome code.
"use strict";
/** * Return the Nth path from the stack excluding substr. * * @param {Number} * n the Nth path from the stack to describe. * @param {String} substr * A segment of the path that should be excluded.
*/ function getNthPathExcluding(n, substr) {
let stack = Components.stack.formattedStack.split("\n");
// Remove this method from the stack
stack = stack.splice(1);
if (substr) {
stack = stack.filter(line => { return line && !line.includes(substr);
});
}
if (!stack[n]) {
n = 0;
} return stack[n] || "";
}
/** * Return a stack object that can be serialized and, when * deserialized, passed to callFunctionWithAsyncStack.
*/ function getStack() { return Components.stack.caller;
}
/** * Like Cu.callFunctionWithAsyncStack but handles the isWorker case * -- |Cu| isn't defined in workers.
*/ function callFunctionWithAsyncStack(callee, stack, id) { if (isWorker) { return callee();
} return Cu.callFunctionWithAsyncStack(callee, stack, id);
}
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