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/* 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/. */
const { assert } = require("devtools/shared/DevToolsUtils");
const { actions } = require("../constants");
let handlers = Object.create(null);
handlers[actions.TOGGLE_RECORD_ALLOCATION_STACKS_START] = function (state, action) {
assert(!state.togglingInProgress,
"Changing recording state must not be reentrant.");
return {
recording: !state.recording,
togglingInProgress: true,
};
};
handlers[actions.TOGGLE_RECORD_ALLOCATION_STACKS_END] = function (state, action) {
assert(state.togglingInProgress,
"Should not complete changing recording state if we weren't changing "
+ "recording state already.");
return {
recording: state.recording,
togglingInProgress: false,
};
};
const DEFAULT_ALLOCATIONS_STATE = {
recording: false,
togglingInProgress: false
};
module.exports = function (state = DEFAULT_ALLOCATIONS_STATE, action) {
let handle = handlers[action.type];
if (handle) {
return handle(state, action);
}
return state;
};
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