35 lines
1.1 KiB
JavaScript
35 lines
1.1 KiB
JavaScript
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'use strict';
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const recurse = require('./recurse.js').recurse;
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const jptr = require('./jptr.js').jptr;
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/**
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* Simply modifies an object to have no self-references by replacing them
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* with $ref pointers
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* @param obj the object to re-reference
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* @param options may contain a prefix property for the generated refs
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* @return the re-referenced object (mutated)
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*/
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function reref(obj,options) {
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let master = obj;
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recurse(obj,{identityDetection:true},function(obj,key,state){
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if (state.identity) {
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let replacement = jptr(master,state.identityPath);
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// ensure it's still there and we've not reffed it away
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let newRef = state.identityPath;
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if (state.identityPath !== state.path) {
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if (options && options.prefix) newRef = newRef.replace('#/',options.prefix);
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if (replacement !== false) obj[key] = { $ref: newRef }
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else if (options && options.verbose) console.warn(state.identityPath,'gone away at',state.path);
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}
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}
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});
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return obj;
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}
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module.exports = {
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reref : reref
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};
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