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source-list-map

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source-list-map

Fast line to line SourceMap generator.

    2.0.1latest
    GitHub
    npm

Version published
Maintainers
1
Weekly downloads
10,813,461
increased by2.47%

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Readme

Source

source-list-map

API

Example

var SourceListMap = require("source-list-map").SourceListMap;

// Create a new map
var map = new SourceListMap();

// Add generated code that is map line to line to some soure
map.add("Generated\ncode1\n", "source-code.js", "Orginal\nsource");

// Add generated code that isn't mapped
map.add("Generated\ncode2\n");

// Get SourceMap and generated source
map.toStringWithSourceMap({ file: "generated-code.js" });
// {
//   source: 'Generated\ncode1\nGenerated\ncode2\n',
//   map: {
//      version: 3,
//      file: 'generated-code.js',
//      sources: [ 'source-code.js' ],
//      sourcesContent: [ 'Orginal\nsource' ],
//      mappings: 'AAAA;AACA;;;'
//    }
// }

// Convert existing SourceMap into SourceListMap
// (Only the first mapping per line is preserved)
var fromStringWithSourceMap = require("source-list-map").fromStringWithSourceMap;
var map = fromStringWithSourceMap("Generated\ncode", { version: 3, ... });

new SourceListMap()

SourceListMap.prototype.add

SourceListMap.prototype.add(generatedCode: string)
SourceListMap.prototype.add(generatedCode: string, source: string, originalSource: string)
SourceListMap.prototype.add(sourceListMap: SourceListMap)

Append some stuff.

SourceListMap.prototype.prepend

SourceListMap.prototype.prepend(generatedCode: string)
SourceListMap.prototype.prepend(generatedCode: string, source: string, originalSource: string)
SourceListMap.prototype.prepend(sourceListMap: SourceListMap)

Prepend some stuff.

SourceListMap.prototype.toString()

Get generated code.

SourceListMap.prototype.toStringWithSourceMap

SourceListMap.prototype.toStringWithSourceMap(options: object)

Get generated code and SourceMap. options can contains file property which defines the file property of the SourceMap.

SourceListMap.prototype.mapGeneratedCode

SourceListMap.prototype.mapGeneratedCode(fn: function) : SourceListMap

Applies fn to each generated code block (per line). The returned value is set as new generated code. Returns a new SourceListMap.

Removing and adding lines is supported. The SourceMap complexity will increase when doing this.

Test

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License

Copyright (c) 2017 JS Foundation

MIT (http://www.opensource.org/licenses/mit-license.php)

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Last updated on 10 Oct 2018

Did you know?

Socket installs a GitHub app to automatically flag issues on every pull request and report the health of your dependencies. Find out what is inside your node modules and prevent malicious activity before you update the dependencies.

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