mirror of
https://github.com/photonstorm/phaser
synced 2024-11-15 09:27:37 +00:00
535 lines
13 KiB
JavaScript
535 lines
13 KiB
JavaScript
/**
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* Converts the JSON data out of YUIDoc into JSDoc documentation.
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*
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* Use a JSDoc plugin to handle custom @sourcefile/@sourceline and reattach meta-data.
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*
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* This works on the current PIXI source code (and exposes a few documentation bugs).
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*
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* Known limitations:
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* - Does not support (from YUIDoc):
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* - @namespace/@module (although all types in the output are fully-resolved)
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* - @event, @bubbles, @for, @uses, @chainable, @async
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* - @beta
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* - Most "YUI-Specific" (but @readOnly is supported)
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* - File-level documentation is probably lost.
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* - All class-level documentation is put into the constructor's @description as there appears
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* to be no separate concept in YUIDoc for constructor vs. class documentation.
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* - Probably doesn't work with nested modules/namespaces.
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* (And many unknown)
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*
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*/
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'use strict';
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/**
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* Convert a parameter into a parameter tag string; also do this for each desc.props, specifying the baseprop.
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*/
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function paramdesc_to_str(desc, typedescs, basename) {
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var name = desc.name;
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var typename = desc.type;
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var description = desc.description;
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if (basename) {
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name = basename + "." + name;
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}
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if (desc.optional) {
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if (desc.optdefault) {
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name = "[" + name + "=" + desc.optdefault + "]";
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} else {
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name = "[" + name + "]";
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}
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}
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return "{" + resolve_typename(typename, typedescs) + "} " + name + " - " + description;
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}
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/**
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* Convert a parameter to as many @params as required; this is to map YUIDoc "props"
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*/
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function paramdesc_to_attrs(desc, typedescs, attrs, baseprop) {
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attrs = attrs || [];
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attrs.push(paramdesc_to_str(desc, typedescs, baseprop ? baseprop.name : ''));
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if (desc.props) {
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desc.props.forEach(function (prop) {
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paramdesc_to_attrs(prop, typedescs, attrs, desc);
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});
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}
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return attrs;
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}
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/**
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* Convert a return into a return tag string.
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*/
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function returndesc_to_string(desc, typedescs) {
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var typename = desc.type;
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var description = desc.description;
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if (typename) {
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return "{" + resolve_typename(typename, typedescs) + "} " + description;
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} else {
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return description;
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}
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}
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/**
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* Convert flat 'typeitems' found in YUIDoc to a dictionary:
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* typename: {
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* items: [..] - properties and methods
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* }
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*/
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function group_typeitems(typeitems) {
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var types = {};
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typeitems.forEach(function (itemdesc, i) {
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var typename = itemdesc['class'];
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var type = types[typename];
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if (!type) {
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type = types[typename] = {
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items: []
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};
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}
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type.items.push(itemdesc);
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});
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return types;
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}
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/**
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* Convert ident to the "closest" valid non-quoted identifier.
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* May return the empty string (which is not a valid identifier).
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*/
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function as_valid_identifier (ident) {
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ident = ident.replace(/\s/g, '_');
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ident = ident.replace(/[^\w_$]/g, '');
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ident = ident.replace(/^(\d)/, '_$1');
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return ident;
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}
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/**
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* YUIDoc has no concept of generic types and various projects use inconsistent mashups.
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* This is a simple hack to provide some normalization; only spome formats
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* (in particular, that seen in the pixi project) and a few types of input are
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* correctly accepted and nested arrays are not supported.
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*
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* Returns the corrected type if successful
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*/
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function fixup_yuidoc_array (rawtype) {
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// Accept examples, where the angle braces represent all braces.
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// 1. X < >
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// 2. Array < X >
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// 3. Array..of < X >
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var r = rawtype;
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var m;
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// Trim spaces
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r = r.replace(/^\s+|\s+$/g, '');
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// make all brackets angles
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r = r.replace(/[({[]/g, '<').replace(/[)}\]]/g, '>');
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// remove whitespace and periods next to brackets
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r = r.replace(/[\s.]*([<>])[\s.]*/g, '$1');
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// match T<..>, where T != 'array'
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m = r.match(/^([\w$.]+)(?:<.*>)$/i);
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if (m && m[1].toLowerCase() !== 'array') {
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return 'Array<' + (as_valid_identifier(m[1]) || 'unknown') + '>';
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}
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// match Array <T>
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m = r.match(/^Array<(.*)>$/i);
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if (m) {
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return 'Array<' + (as_valid_identifier(m[1]) || 'unknown') + '>';
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}
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// match Array..of T
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m = r.match(/^Array.*?of\b\s*(.*)$/i);
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if (m) {
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return 'Array<' + (as_valid_identifier(m[1]) || 'unknown') + '>';
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}
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return '';
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}
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/**
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* Try to fixup a type if it looks like it may conform to `{key: value, ..}`.
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* Nesting is not supported and quoted keys are not supported.
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*
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* Returns the fixed up version or ''.
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*/
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function fixup_jsobject_like (rawType) {
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var r = rawType;
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// Trim spaces
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r = r.replace(/^\s+|\s+$/g, '');
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// And duplicate brackets
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if (r.match(/^{\s*{.*}\s*}$/)) {
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r = r.replace(/^{\s*(.*?)\s*}$/, '$1');
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}
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if (r.match(/^{([\w$.]+:\s*[\w$.]+,?\s*)+}$/)) {
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r = r.replace(/([\w$.]+):\s*([\w$.]+)(,?\s*)/g, function (m, a, b, c) {
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if (c) { c = ", "; }
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return as_valid_identifier(a) + ": " + as_valid_identifier(b) + c;
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});
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return r;
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}
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else
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{
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return '';
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}
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}
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/**
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* Process a complex (possibly multiple) type.
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* (This has limited ability now: will not recurse, handle special arrays, etc.)
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*/
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function resolve_typename(typename, typedescs) {
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if (!typename) { typename = "Any"; }
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var typenames;
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if (typename.indexOf('|') > -1) {
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typenames = typename.split(/[|]/g);
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} else {
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typenames = [typename];
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}
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typenames = typenames.map(function (part) {
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var orig = part;
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var prev;
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var loss = false;
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var repeating = false;
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var array = false;
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var objlike = false;
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// Don't accept quotes in names from upstream
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prev = part;
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part = part.replace(/"/g, '');
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loss = loss || prev !== part;
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// YUIDoc is type... and JSDoc is ...type
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prev = part;
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part = part.replace(/^\.{3,}|\.{3,}$/g, '');
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repeating = prev !== part;
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prev = part;
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part = fixup_jsobject_like(part);
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if (part) {
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objlike = true;
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} else {
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part = prev;
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}
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prev = part;
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part = fixup_yuidoc_array(part);
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if (part) {
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array = true;
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} else {
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part = prev;
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}
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if (objlike) {
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loss = loss || orig.replace(/\W+/g, '') !== part.replace(/\W+/g, '');
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} else if (array) {
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loss = loss || orig.replace(/^\W/, '') !== part.replace(/^\W/, '');
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} else {
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prev = part;
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var m = part.match(/[\w$.]+/); // Take possible '.' to start
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part = (m && m[0]) || '';
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part = as_valid_identifier(part);
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loss = loss || prev !== part;
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}
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if (loss) {
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console.log("Mutilating type: (" + orig + "=>" + part + ")");
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}
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var resolved = resolve_single_typename(part, typedescs);
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if (repeating) {
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return "..." + resolved;
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} else {
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return resolved;
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}
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});
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if (typenames.length > 1) {
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return "(" + typenames.join("|") + ")";
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} else {
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return typenames[0];
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}
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}
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/**
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* Process a single type
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*/
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function resolve_single_typename(typename, typedescs) {
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if (!typename || typename.toLowerCase() === "any" || typename === "*") {
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return ""; // "Any"
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}
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var typedesc = typedescs[typename];
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if (typedesc) {
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return typedesc.module + "." + typename;
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} else {
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return typename;
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}
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}
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function resolve_item_qualifiedname(itemdesc, typedesc, typedescs) {
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var name = itemdesc.name;
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var typename = resolve_single_typename(typedesc.name, typedescs);
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if (itemdesc['static']) {
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return typename + "." + name;
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} else {
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return typename + "#" + name;
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}
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}
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function add_generic_attrs (desc, attrs) {
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var map = ['access', 'author', 'version', 'since', 'deprecated'];
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map.forEach(function (m) {
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var key = m;
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var value = desc[key];
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if (value) {
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attrs.push([key, value]);
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}
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});
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if (desc.file) {
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attrs.push(['sourcefile', desc.file]);
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attrs.push(['sourceline', desc.line]);
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}
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}
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/**
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* Process Method
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*/
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function methoddesc_to_attrs(itemdesc, typedesc, typedescs)
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{
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var attrs = [];
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if (itemdesc.description) {
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attrs.push(['description', itemdesc.description]);
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}
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attrs.push(['method', resolve_item_qualifiedname(itemdesc, typedesc, typedescs)]);
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if (itemdesc.params)
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{
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itemdesc.params.forEach(function (param, i) {
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var paramattrs = paramdesc_to_attrs(param, typedescs);
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paramattrs.forEach(function (paramattr) {
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attrs.push(['param', paramattr]);
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});
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});
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}
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if (itemdesc['return'])
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{
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attrs.push(['return', returndesc_to_string(itemdesc['return'], typedescs)]);
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}
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add_generic_attrs(itemdesc, attrs);
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return attrs;
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}
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/**
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* Process Property - Member in JSDoc
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*/
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function propertydesc_to_attrs(itemdesc, typedesc, typedescs)
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{
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var attrs = [];
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if (itemdesc.description) {
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attrs.push(['description', itemdesc.description]);
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}
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attrs.push(['member', resolve_item_qualifiedname(itemdesc, typedesc, typedescs)]);
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attrs.push(['type', "{" + resolve_typename(itemdesc.type, typedescs) + "}"]);
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if (itemdesc['readonly'] !== undefined) {
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attrs.push(['readonly', '']);
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}
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if (itemdesc['default'] !== undefined) {
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attrs.push(['default', itemdesc['default']]);
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}
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add_generic_attrs(itemdesc, attrs);
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return attrs;
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}
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function write_attr_block (attrs, res) {
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if (attrs) {
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res.push("/**");
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attrs.forEach(function (attr) {
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var name = attr[0];
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var value = attr[1];
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if (value !== undefined) {
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res.push("* @" + name + " " + value);
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} else {
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res.push("* @" + name);
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}
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});
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res.push("*/");
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}
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}
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/**
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* Turns an array of "attributes" into a JSDoc comment block.
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*/
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function flatten_jsdoc_comment (attrs) {
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var res = [];
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write_attr_block(attrs, res);
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return res.join("\n");
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}
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function itemdesc_to_attrs(itemdesc, typedesc, typedescs) {
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if (itemdesc.itemtype === 'method')
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{
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return methoddesc_to_attrs(itemdesc, typedesc, typedescs);
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}
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else if (itemdesc.itemtype === 'property')
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{
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return propertydesc_to_attrs(itemdesc, typedesc, typedescs);
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}
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else if (!typedesc._loggedLooseComment)
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{
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typedesc._loggedLooseComment = true;
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var name = itemdesc.file.match(/([^\/\\]*)$/)[1];
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console.log("Skipping loose comment: " + name + ":" + itemdesc.line + " (first)");
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}
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}
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function typedesc_to_attrs (typedesc, typedescs) {
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var attrs = [];
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// Bug in PIXI (test) docs has a "static constructor", whoops!
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if (typedescs.is_constructor || !typedescs['static']) {
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attrs.push(['class', resolve_single_typename(typedesc.name, typedescs)]);
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if (typedesc.description) {
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attrs.push(['description', typedesc.description]);
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}
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} else {
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// Not constructor, possibly static ..
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attrs.push(['description', typedesc.description]);
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attrs.push(['namespace', resolve_single_typename(typedesc.name, typedescs)]);
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}
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var extendsname = typedesc['extends'];
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if (extendsname) {
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var extenddesc = typedescs[extendsname];
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if (extenddesc) {
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attrs.push(['augments', resolve_single_typename(extendsname, typedescs)]);
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} else {
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attrs.push(['augments', extendsname]);
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}
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}
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if (typedesc.params)
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{
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typedesc.params.forEach(function (paramdesc, i) {
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attrs.push(['param', paramdesc_to_str(paramdesc, typedescs)]);
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});
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}
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add_generic_attrs(typedesc, attrs);
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return attrs;
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}
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function filedesc_to_attrs (filedesc) {
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var attrs = [];
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attrs.push(['fileoverview', filedesc.description]);
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add_generic_attrs(filedesc, attrs);
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return attrs;
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}
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/**
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* Converts YUIDoc JSON (as found in data.json after generating documentation) into JSDoc comments.
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*
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* @method
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* @param {} data - YUIDoc data.
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* @return {string[]} An array of comment blocks.
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*/
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function yuidocdata_to_jsdoc(data) {
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var typedescs = data.classes;
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var type_itemdesc_groups = group_typeitems(data.classitems);
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var comments = [];
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Object.keys(typedescs).forEach(function (name) {
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var typedesc = typedescs[name];
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var typeattrs = typedesc_to_attrs(typedesc, typedescs);
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var type_comments = [];
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var type_itemdesc = type_itemdesc_groups[name];
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if (type_itemdesc) {
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// First item might be a file-level comment
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var first_item = type_itemdesc.items[0];
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if (first_item.itemtype === undefined) {
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type_itemdesc.items.shift();
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var file_attrs = filedesc_to_attrs(first_item);
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comments.push(flatten_jsdoc_comment(file_attrs));
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}
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type_itemdesc.items.forEach(function (itemdesc, i) {
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var attrs = itemdesc_to_attrs(itemdesc, typedesc, typedescs);
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type_comments.push(flatten_jsdoc_comment(attrs));
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});
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} else {
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console.log("No items for " + name);
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}
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comments.push(flatten_jsdoc_comment(typeattrs));
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comments.push.apply(comments, type_comments);
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});
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return comments;
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}
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exports.convert = function (yuidoc) {
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return yuidocdata_to_jsdoc(yuidoc);
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};
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