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authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
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Add m-esr52 at 52.6.0
Diffstat (limited to 'devtools/client/memory/reducers/allocations.js')
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diff --git a/devtools/client/memory/reducers/allocations.js b/devtools/client/memory/reducers/allocations.js
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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;
+};