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source-list-map

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

Build Status

License

Copyright (c) 2017 JS Foundation

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