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Don't repeatedly loop enums in enums.read

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This commit is contained in:
Daniel Huigens 2018-04-27 12:08:49 +02:00
parent cf3c2790f2
commit 94b27c9a02
1 changed files with 11 additions and 4 deletions
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15
src/enums.js
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@ -2,6 +2,8 @@
* @module enums * @module enums
*/ */
const byValue = Symbol('byValue');
export default { export default {
/** Maps curve names under various standards to one /** Maps curve names under various standards to one
@ -456,10 +458,15 @@ export default {
/** Converts from an integer to string. */ /** Converts from an integer to string. */
read: function(type, e) { read: function(type, e) {
for (const i in type) { if (!type[byValue]) {
if (type[i] === parseInt(e, 10)) { type[byValue] = [];
return i; Object.entries(type).forEach(([key, value]) => {
} type[byValue][value] = key;
});
}
if (type[byValue][e] !== undefined) {
return type[byValue][e];
} }
throw new Error('Invalid enum value.'); throw new Error('Invalid enum value.');