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caching enabled status per logger #799

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merged 2 commits into from
Dec 9, 2020
Merged

caching enabled status per logger #799

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f0f645e
caching enabled status per logger
containmentbreach Dec 3, 2020
2c6f610
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containmentbreach Dec 9, 2020
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15 changes: 14 additions & 1 deletion src/common.js
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Original file line number Diff line number Diff line change
Expand Up @@ -60,6 +60,8 @@ function setup(env) {
function createDebug(namespace) {
let prevTime;
let enableOverride = null;
let namespacesCache;
let enabledCache;

function debug(...args) {
// Disabled?
Expand Down Expand Up @@ -120,7 +122,17 @@ function setup(env) {
Object.defineProperty(debug, 'enabled', {
enumerable: true,
configurable: false,
get: () => enableOverride === null ? createDebug.enabled(namespace) : enableOverride,
get: () => {
if (enableOverride !== null) {
return enableOverride;
}
if (namespacesCache !== createDebug.namespaces) {
namespacesCache = createDebug.namespaces;
enabledCache = createDebug.enabled(namespace);
}

return enabledCache;
},
set: v => {
enableOverride = v;
}
Expand Down Expand Up @@ -149,6 +161,7 @@ function setup(env) {
*/
function enable(namespaces) {
createDebug.save(namespaces);
createDebug.namespaces = namespaces;

createDebug.names = [];
createDebug.skips = [];
Expand Down