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sveltedoc-parser

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Readme

The sveltedoc parser

Generate a JSON documentation for a Svelte file

Changelog: [2.3.0] 02.10.2019

[Added] Svelte V3: Implement support of script element locations
[Fixed] Svelte V3: Fix parsing when component have multiple <script> blocks
[Added] Spec: Property locations was added to items and presents the list of item code locations
[Changed] Spec: Property loc for items marked as depricated, see locations property instead

[2.3.1] 25.11.2019

[Fixed] Svelte V3: Fix parsing issues when anonymous functions are used in event handlers at markup (Issue #18)

Full changelog of release versions can be found here

Install

npm install --save sveltedoc-parser

Features

JSDoc support
- Support description extraction for everything items
- Support visibility scope from JSDoc keywords: @public, @protected, @private
Extract list of imported components
- Extract relative path to imported component (supports full-syntax and short-syntax import styles)
Extract data properties
- Extract description from JSDoc comment
- Extract JS type from JSDoc (@type {string}) or parse default value if is not provided
Extract computed properties with list of dependencies
Extract list of references that attached to components or HTML elements
Extract information about events
- Events that propogated from child component or HTML elements <button on:click>...</button>
- Parse event modificators ... on:click|once
Extract all fired events (Svelte 2 only)
- Events that fired by this component by fire(...) method
- Custom event handlers with private visibility scope
Extract all dispatched events (Svelte 3)
- Events that dispatched from script block by user-created dispatcher
- Events that dispatched from markup expressions by user-created dispatcher
Extract list of used default and named slots
Extract component methods
- Extract description from JSDoc comment
- Extract parameters description from JSDoc comment
- Extract JS type from JSDoc for parameters (@param {string} parameter)
- Identify optional parameters (@param [parameter]), Google Closure Compiler syntax supported as well (@param {string=} parameter)
- Identify default values for optional parameters (@param [parameter=Default value])
Extract component helpers (Svelte 2 only)
Extract component actions (Svelte 2 only)
Extract component transitions (Svelte 2 only)
Extract source locations for component symbols
- data
- slots
- methods
- refs
- events

Configuration

json Path	Description	Default value
filename	The filename to parse. Required, unless `fileContent` is passed.
fileContent	The file content to parse. Required, unless `filename` is passed.
encoding	The file encoding.	`utf8`
features	The component features to parse and extracting.	By default used all supported features (see below).
ignoredVisibilities	The list of ignored visibilities.	`['private', 'protected']`
includeSourceLocations	Flag, which indicates that source locations should be provided for component symbols.	`false`
version	Optional. Use `2` or `3` to specify which svelte syntax should be used. When that is not provided, parser try to detect version of the syntax.	`undefined`
defaultVersion	Optional. Specify default version of svelte syntax, if auto-detector can't indetify correct version.	`undefined`

Supported feature names

'name' - Extract the component name (Supported by Svelte 2 and Svelte 3).
'data' - Extract and parse the list of component data properties (Supported by Svelte 2 and Svelte 3).
'computed' - Extract and parse the list of component computed properties (Supported by Svelte 2 and Svelte 3).
'methods' - Extract the list of component methods (Supported by Svelte 2 and Svelte 3).
'actions' - Extract the list of component actions (Supported by Svelte 2).
'helpers' - Extract the list of component helpers (Supported by Svelte 2).
'components' - Extract the list of imported components (Supported by Svelte 2 and Svelte 3).
'description' - Extract the component description (Supported by Svelte 2 and Svelte 3).
'events' - Extract the list of events that fired by this component (Supported by Svelte 2 and Svelte 3).
'slots' - Extract the list of slots provided by this component (Supported by Svelte 2 and Svelte 3).
'transitions' - Extract the list of transitions used by this component (Supported by Svelte 2).
'refs' - Extract the list of references used by this component (Supported by Svelte 2 and Svelte 3).

Output format

Output format are described at this document.

See example of output for Svelte 2 component here presented in JSON format for this component.

Usage

const sveltedoc = require('sveltedoc-parser');
const options = {
    filename: 'main.svelte'
};

sveltedoc.parse(options)
    .then(componentDoc => {
        console.log(componentDoc);
    })
    .catch(e => {
        console.error(e);
    });

API

parse(options)

Method to parse svelte component and provide doc object structure with details information.

detectVersion(options)

Method to detect svelte syntax version

Returns 3 when Svelte 3 special syntax feature are used
Returns 2 when Svelte 2 special syntax feature are used
Returns defaultVersion or undefined when specific version can't be identified

Issues

All list of known issues presented at this page.

Found a new issues? Please contribute and write detailed description here.

Contributors

Author Alexey Mulyukin

Based on vuedoc-parse