43 lines
1.2 KiB
JavaScript
43 lines
1.2 KiB
JavaScript
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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const { assert } = require("devtools/shared/DevToolsUtils");
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const { actions } = require("../constants");
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let handlers = Object.create(null);
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handlers[actions.TOGGLE_RECORD_ALLOCATION_STACKS_START] = function (state, action) {
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assert(!state.togglingInProgress,
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"Changing recording state must not be reentrant.");
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return {
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recording: !state.recording,
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togglingInProgress: true,
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};
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};
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handlers[actions.TOGGLE_RECORD_ALLOCATION_STACKS_END] = function (state, action) {
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assert(state.togglingInProgress,
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"Should not complete changing recording state if we weren't changing "
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+ "recording state already.");
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return {
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recording: state.recording,
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togglingInProgress: false,
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};
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};
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const DEFAULT_ALLOCATIONS_STATE = {
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recording: false,
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togglingInProgress: false
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};
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module.exports = function (state = DEFAULT_ALLOCATIONS_STATE, action) {
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let handle = handlers[action.type];
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if (handle) {
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return handle(state, action);
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}
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return state;
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};
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