@putout/engine-parser - npm Package Compare versions

Comparing version 4.9.1 to 4.10.0

lib/generate.js

		@@ -5,8 +5,9 @@ 'use strict';

		module.exports = (node) => {
		module.exports = (node, options, sourceMaps) => {
		return generate(node, {
		comments: false,
		recordAndTupleSyntaxType: 'hash',
		});
		...options,
		}, sourceMaps);
		};

lib/parse.js

		@@ -16,5 +16,7 @@ 'use strict';
		isJSX,
		sourceFileName,
		} = options \|\| {};

		const ast = recast.parse(source, {
		sourceFileName,
		parser: getParser({
		@@ -25,2 +27,3 @@ parser,
		isJSX,
		sourceFileName,
		}),
		@@ -27,0 +30,0 @@ });

lib/parsers/babel/index.js

		@@ -21,3 +21,6 @@ 'use strict';

		module.exports.parse = function babelParse(source, {isTS, isJSX = true, isFlow = getFlow(source)}) {
		// There is a difference in options naming for babel and recast
		// recast -> sourceFileName
		// babel, putout: sourceFilename
		module.exports.parse = function babelParse(source, {sourceFilename, isTS, isJSX = true, isFlow = getFlow(source)}) {
		const {parse} = initBabel();
		@@ -28,2 +31,3 @@
		tokens: true,
		sourceFilename,
		...options,
		@@ -30,0 +34,0 @@ plugins: clean([

lib/print.js

		@@ -6,4 +6,8 @@ 'use strict';
		const fixStrictMode = (a) => a.replace(`\n\n\n'use strict'`, `\n\n'use strict'`);
		const addSourceMap = (sourceMapName, {code, map}) => !sourceMapName ? code : `${code}\n//${stringify(map)}\n`;

		module.exports = (ast) => {
		const {stringify} = JSON;

		module.exports = (ast, options = {}) => {
		const {sourceMapName} = options;
		const printOptions = {
		@@ -13,9 +17,14 @@ quote: 'single',
		wrapColumn: Infinity,
		...options,
		};

		const printed = print(ast, printOptions).code;
		const code = fixStrictMode(printed);
		const printed = print(ast, printOptions);
		const {map} = printed;
		const code = fixStrictMode(printed.code);

		return code;
		return addSourceMap(sourceMapName, {
		code,
		map,
		});
		};

package.json

		{
		"name": "@putout/engine-parser",
		"version": "4.9.1",
		"version": "4.10.0",
		"type": "commonjs",
		"author": "coderaiser <mnemonic.enemy@gmail.com> (https://github.com/coderaiser)",
		"description": "putout parser",
		"homepage": "https://github.com/coderaiser/putout/tree/master/packages/engine-parser",
		"homepage": "https://github.com/coderaiser/putout/tree/master/packages/engine-parser#readme",
		"main": "./lib/parser.js",
		@@ -8,0 +9,0 @@ "release": false,

README.md

		@@ -6,3 +6,3 @@ # @putout/engine-parser [![NPM version][NPMIMGURL]][NPMURL]

		`putout` engine that parses input.
		🐊[`Putout`](https://github.com/coderaiser/putout) engine that parses input.

		@@ -47,2 +47,42 @@ ## Install

		### Sourcemaps

		You have two ways to benefit from source map generation:

		- using `Recast` print;
		- using `Babel` generator;

		#### Generate sourcemaps usign Recast

		```js
		const source = `const hello = 'world';`;
		const ast = parse(source, {
		sourceFileName: 'hello.js',
		});
		print(ast, {sourceMapName: 'hello.map'});
		// returns
		`const hello = 'world';
		{"version":3,"sources":["hello.js"],"names":[],"mappings":"AAAA...","file":"hello.map","sourcesContent":["const hello = 'world';"]}`;
		```

		#### Generate sourcemaps usign Bebel

		To generate sourcemap usig babel generator, you should use babel parser before.
		This is low level transformation, because `Babel` doesn't preserve any formatting.

		```js
		const {generate} = require('@putout/engine-parser');
		const babel = require('@putout/engine-parser/babel');

		const ast = babel.parse(source, {
		sourceFilename: 'hello.js',
		});

		generate(ast, {sourceMaps: true}, {
		'hello.js': source,
		});
		// returns
		({code, map});
		```

		## Example
		@@ -49,0 +89,0 @@

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