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author | Minteck <contact@minteck.org> | 2022-06-04 08:51:01 +0200 |
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committer | Minteck <contact@minteck.org> | 2022-06-04 08:51:01 +0200 |
commit | 383285ecd5292bf9a825e05904955b937de84cc9 (patch) | |
tree | 0a53b6f02c1604b078044567c03dc1b6c944c8c2 /node_modules/yaml/dist/doc/applyReviver.js | |
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Initial commit
Diffstat (limited to 'node_modules/yaml/dist/doc/applyReviver.js')
-rw-r--r-- | node_modules/yaml/dist/doc/applyReviver.js | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/node_modules/yaml/dist/doc/applyReviver.js b/node_modules/yaml/dist/doc/applyReviver.js new file mode 100644 index 0000000..8734579 --- /dev/null +++ b/node_modules/yaml/dist/doc/applyReviver.js @@ -0,0 +1,56 @@ +'use strict'; + +/** + * Applies the JSON.parse reviver algorithm as defined in the ECMA-262 spec, + * in section 24.5.1.1 "Runtime Semantics: InternalizeJSONProperty" of the + * 2021 edition: https://tc39.es/ecma262/#sec-json.parse + * + * Includes extensions for handling Map and Set objects. + */ +function applyReviver(reviver, obj, key, val) { + if (val && typeof val === 'object') { + if (Array.isArray(val)) { + for (let i = 0, len = val.length; i < len; ++i) { + const v0 = val[i]; + const v1 = applyReviver(reviver, val, String(i), v0); + if (v1 === undefined) + delete val[i]; + else if (v1 !== v0) + val[i] = v1; + } + } + else if (val instanceof Map) { + for (const k of Array.from(val.keys())) { + const v0 = val.get(k); + const v1 = applyReviver(reviver, val, k, v0); + if (v1 === undefined) + val.delete(k); + else if (v1 !== v0) + val.set(k, v1); + } + } + else if (val instanceof Set) { + for (const v0 of Array.from(val)) { + const v1 = applyReviver(reviver, val, v0, v0); + if (v1 === undefined) + val.delete(v0); + else if (v1 !== v0) { + val.delete(v0); + val.add(v1); + } + } + } + else { + for (const [k, v0] of Object.entries(val)) { + const v1 = applyReviver(reviver, val, k, v0); + if (v1 === undefined) + delete val[k]; + else if (v1 !== v0) + val[k] = v1; + } + } + } + return reviver.call(obj, key, val); +} + +exports.applyReviver = applyReviver; |