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coverage.js
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60 lines (48 loc) · 1.46 KB
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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/>. */
// @flow
/**
* Code coverage reducer
* @module reducers/coverage
*/
import makeRecord from "../utils/makeRecord";
import * as I from "immutable";
import fromJS from "../utils/fromJS";
import type { Action } from "../actions/types";
import type { Record } from "../utils/makeRecord";
export type CoverageState = {
coverageOn: boolean,
hitCount: Object
};
export const State = makeRecord(
({
coverageOn: false,
hitCount: I.Map()
}: CoverageState)
);
function update(
state: Record<CoverageState> = State(),
action: Action
): Record<CoverageState> {
switch (action.type) {
case "RECORD_COVERAGE":
return state
.mergeIn(["hitCount"], fromJS(action.value.coverage))
.setIn(["coverageOn"], true);
default: {
return state;
}
}
}
// NOTE: we'd like to have the app state fully typed
// https://github.com/devtools-html/debugger.html/blob/master/src/reducers/sources.js#L179-L185
type OuterState = { coverage: Record<CoverageState> };
export function getHitCountForSource(state: OuterState, sourceId: ?string) {
const hitCount = state.coverage.get("hitCount");
return hitCount.get(sourceId);
}
export function getCoverageEnabled(state: OuterState) {
return state.coverage.get("coverageOn");
}
export default update;