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node_modules/merge-source-map/LICENSE
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21
node_modules/merge-source-map/LICENSE
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The MIT License (MIT)
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Copyright (c) keik <k4t0.kei@gmail.com>
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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91
node_modules/merge-source-map/README.md
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91
node_modules/merge-source-map/README.md
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# merge-source-map
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[](https://npmjs.org/package/merge-source-map)
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[](https://npmjs.org/package/merge-source-map)
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[](https://travis-ci.org/keik/merge-source-map)
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[](https://coveralls.io/github/keik/merge-source-map)
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Merge old source map and new source map in multi-transform flow
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# API
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```javascript
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var merge = require('merge-source-map')
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```
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## `merge(oldMap, newMap)`
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Merge old source map and new source map and return merged.
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If old or new source map value is falsy, return another one as it is.
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<dl>
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<dt>
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<code>oldMap</code> : <code>object|undefined</code>
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</dt>
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<dd>
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old source map object
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</dd>
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<dt>
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<code>newmap</code> : <code>object|undefined</code>
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</dt>
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<dd>
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new source map object
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</dd>
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</dl>
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# Example
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```javascript
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var esprima = require('esprima'),
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estraverse = require('estraverse'),
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escodegen = require('escodegen'),
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convert = require('convert-source-map'),
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merge = require('merge-source-map')
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const CODE = 'a = 1',
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FILEPATH = 'a.js'
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// create AST of original code
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var ast = esprima.parse(CODE, {sourceType: 'module', loc: true})
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// transform AST of original code
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estraverse.replace(ast, {
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enter: function(node, parent) { /* change AST */ },
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leave: function(node, parent) { /* change AST */ }
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})
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// generate code and source map from transformed AST
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var gen = escodegen.generate(ast, {
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sourceMap: FILEPATH,
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sourceMapWithCode: true,
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sourceContent: CODE
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})
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// merge old source map and new source map
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var oldMap = convert.fromSource(CODE) && convert.fromSource(CODE).toObject(),
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newMap = JSON.parse(gen.map.toString()),
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mergedMap = merge(oldMap, newMap),
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mapComment = convert.fromObject(mergedMap).toComment()
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// attach merge source map to transformed code
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var transformed = gen.code + '\n' + mapComment
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console.log(transformed);
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```
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# Test
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```
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% npm install
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% npm test
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```
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# License
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MIT (c) keik
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65
node_modules/merge-source-map/index.js
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node_modules/merge-source-map/index.js
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var sourceMap = require('source-map')
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var SourceMapConsumer = sourceMap.SourceMapConsumer
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var SourceMapGenerator = sourceMap.SourceMapGenerator
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module.exports = merge
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/**
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* Merge old source map and new source map and return merged.
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* If old or new source map value is falsy, return another one as it is.
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*
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* @param {object|string} [oldMap] old source map object
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* @param {object|string} [newmap] new source map object
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* @return {object|undefined} merged source map object, or undefined when both old and new source map are undefined
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*/
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function merge(oldMap, newMap) {
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if (!oldMap) return newMap
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if (!newMap) return oldMap
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var oldMapConsumer = new SourceMapConsumer(oldMap)
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var newMapConsumer = new SourceMapConsumer(newMap)
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var mergedMapGenerator = new SourceMapGenerator()
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// iterate on new map and overwrite original position of new map with one of old map
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newMapConsumer.eachMapping(function(m) {
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// pass when `originalLine` is null.
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// It occurs in case that the node does not have origin in original code.
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if (m.originalLine == null) return
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var origPosInOldMap = oldMapConsumer.originalPositionFor({
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line: m.originalLine,
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column: m.originalColumn
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})
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if (origPosInOldMap.source == null) return
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mergedMapGenerator.addMapping({
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original: {
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line: origPosInOldMap.line,
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column: origPosInOldMap.column
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},
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generated: {
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line: m.generatedLine,
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column: m.generatedColumn
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},
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source: origPosInOldMap.source,
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name: origPosInOldMap.name
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})
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})
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var consumers = [oldMapConsumer, newMapConsumer]
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consumers.forEach(function(consumer) {
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consumer.sources.forEach(function(sourceFile) {
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mergedMapGenerator._sources.add(sourceFile)
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var sourceContent = consumer.sourceContentFor(sourceFile)
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if (sourceContent != null) {
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mergedMapGenerator.setSourceContent(sourceFile, sourceContent)
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}
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})
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})
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mergedMapGenerator._sourceRoot = oldMap.sourceRoot
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mergedMapGenerator._file = oldMap.file
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return JSON.parse(mergedMapGenerator.toString())
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}
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71
node_modules/merge-source-map/package.json
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node_modules/merge-source-map/package.json
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{
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"_from": "merge-source-map@^1.1.0",
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"_id": "merge-source-map@1.1.0",
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"_inBundle": false,
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"_integrity": "sha512-Qkcp7P2ygktpMPh2mCQZaf3jhN6D3Z/qVZHSdWvQ+2Ef5HgRAPBO57A77+ENm0CPx2+1Ce/MYKi3ymqdfuqibw==",
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"_location": "/merge-source-map",
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"_phantomChildren": {},
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"_requested": {
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"type": "range",
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"registry": true,
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"raw": "merge-source-map@^1.1.0",
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"name": "merge-source-map",
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"escapedName": "merge-source-map",
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"rawSpec": "^1.1.0",
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"saveSpec": null,
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"fetchSpec": "^1.1.0"
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},
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"_requiredBy": [
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"/@vue/component-compiler-utils"
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],
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"_resolved": "https://registry.npmjs.org/merge-source-map/-/merge-source-map-1.1.0.tgz",
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"_shasum": "2fdde7e6020939f70906a68f2d7ae685e4c8c646",
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"_spec": "merge-source-map@^1.1.0",
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"_where": "C:\\Users\\zhouxueli\\Desktop\\scheduling-app\\node_modules\\@vue\\component-compiler-utils",
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"author": {
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"name": "keik",
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"email": "k4t0.kei@gmail.com"
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},
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"bugs": {
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"url": "https://github.com/keik/merge-source-map/issues"
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},
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"bundleDependencies": false,
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"dependencies": {
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"source-map": "^0.6.1"
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},
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"deprecated": false,
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"description": "Merge old source map and new source map in multi-transform flow",
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"devDependencies": {
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"babel-core": "^6.25.0",
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"babel-plugin-syntax-object-rest-spread": "^6.13.0",
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"babel-plugin-transform-es2015-arrow-functions": "^6.22.0",
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"babel-plugin-transform-es2015-spread": "^6.22.0",
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"coffee-script": "^1.12.6",
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"convert-source-map": "^1.5.0",
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"escodegen": "^1.8.1",
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"eslint": "^3.19.0",
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"esprima": "^3.1.3",
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"estraverse": "^4.2.0",
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"nyc": "^8.4.0",
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"tape": "^4.6.3"
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},
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"files": [],
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"homepage": "https://github.com/keik/merge-source-map#readme",
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"keywords": [
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"sourcemap",
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"source-map"
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],
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"license": "MIT",
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"main": "index.js",
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"name": "merge-source-map",
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"repository": {
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"type": "git",
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"url": "git+https://github.com/keik/merge-source-map.git"
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},
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"scripts": {
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"lint": "eslint index.js 'test/**/*.js'",
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"test": "nyc tape test/*.js",
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"version": "npm run lint && npm run test"
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},
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"version": "1.1.0"
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}
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