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Change Log

# 0.7.3

- Fix a bug where nested uses of `SourceMapConsumer` could result in a `TypeError`. #338 #330 #319

# 0.7.2

- Another 3x speed up in `SourceMapConsumer`. Read about it here: http://fitzgeraldnick.com/2018/02/26/speed-without-wizardry.html

# 0.7.1

- Updated TypeScript typings. #321

# 0.7.0

- `SourceMapConsumer` now uses WebAssembly, and is much faster! Read about it here: https://hacks.mozilla.org/2018/01/oxidizing-source-maps-with-rust-and-webassembly/
- Breaking change: `new SourceMapConsumer` now returns a `Promise` object that resolves to the newly constructed `SourceMapConsumer` instance, rather than returning the new instance immediately.
- Breaking change: when you're done using a `SourceMapConsumer` instance, you must call `SourceMapConsumer.prototype.destroy` on it. After calling `destroy`, you must not use the instance again.
- Breaking change: `SourceMapConsumer` used to be able to handle lines, columns numbers and source and name indices up to `2^53 - 1` (aka `Number.MAX_SAFE_INTEGER`). It can now only handle them up to `2^32 - 1`.
- Breaking change: The `source-map` library now uses modern ECMAScript-isms: `let`, arrow functions, `async`, etc. Use Babel to compile it down to ECMAScript 5 if you need to support older JavaScript environments.
- Breaking change: Drop support for Node < 8. If you want to support older versions of node, please use v0.6 or below.

# 0.5.6

- Fix for regression when people were using numbers as names in source maps. See #236.

# 0.5.5

- Fix "regression" of unsupported, implementation behavior that half the world happens to have come to depend on. See #235.
- Fix regression involving function hoisting in SpiderMonkey. See #233.

# 0.5.4

- Large performance improvements to source-map serialization. See #228 and #229.

# 0.5.3

- Do not include unnecessary distribution files. See commit ef7006f8d1647e0a83fdc60f04f5a7ca54886f86.

# 0.5.2

- Include browser distributions of the library in package.json's `files`. See issue #212.

# 0.5.1

- Fix latent bugs in IndexedSourceMapConsumer.prototype._parseMappings. See ff05274becc9e6e1295ed60f3ea090d31d843379.

# 0.5.0

- Node 0.8 is no longer supported.
- Use webpack instead of dryice for bundling.
- Big speedups serializing source maps. See pull request #203.
- Fix a bug with `SourceMapConsumer.prototype.sourceContentFor` and sources that explicitly start with the source root. See issue #199.

# 0.4.4

- Fix an issue where using a `SourceMapGenerator` after having created a `SourceMapConsumer` from it via `SourceMapConsumer.fromSourceMap` failed. See issue #191.
- Fix an issue with where `SourceMapGenerator` would mistakenly consider different mappings as duplicates of each other and avoid generating them. See issue #192.

# 0.4.3

- A very large number of performance improvements, particularly when parsing source maps. Collectively about 75% of time shaved off of the source map parsing benchmark!
- Fix a bug in `SourceMapConsumer.prototype.allGeneratedPositionsFor` and fuzzy searching in the presence of a column option. See issue #177.
- Fix a bug with joining a source and its source root when the source is above the root. See issue #182.
- Add the `SourceMapConsumer.prototype.hasContentsOfAllSources` method to determine when all sources' contents are inlined into the source map. See issue #190.

# 0.4.2

- Add an `.npmignore` file so that the benchmarks aren't pulled down by dependent projects. Issue #169.
- Add an optional `column` argument to `SourceMapConsumer.prototype.allGeneratedPositionsFor` and better handle lines with no mappings. Issues #172 and #173.

# 0.4.1

- Fix accidentally defining a global variable. #170.

# 0.4.0

- The default direction for fuzzy searching was changed back to its original direction. See #164.
- There is now a `bias` option you can supply to `SourceMapConsumer` to control the fuzzy searching direction. See #167.
- About an 8% speed up in parsing source maps. See #159.
- Added a benchmark for parsing and generating source maps.

# 0.3.0

- Change the default direction that searching for positions fuzzes when there is not an exact match. See #154.
- Support for environments using json2.js for JSON serialization. See #156.

# 0.2.0

- Support for consuming "indexed" source maps which do not have any remote sections. See pull request #127. This introduces a minor backwards incompatibility if you are monkey patching `SourceMapConsumer.prototype` methods.

# 0.1.43

- Performance improvements for `SourceMapGenerator` and `SourceNode`. See issue #148 for some discussion and issues #150, #151, and #152 for implementations.

# 0.1.42

- Fix an issue where `SourceNode`s from different versions of the source-map library couldn't be used in conjunction with each other. See issue #142.

# 0.1.41

- Fix a bug with getting the source content of relative sources with a "./" prefix. See issue #145 and Bug 1090768.
- Add the `SourceMapConsumer.prototype.computeColumnSpans` method to compute the column span of each mapping.
- Add the `SourceMapConsumer.prototype.allGeneratedPositionsFor` method to find all generated positions associated with a given original source and line.

# 0.1.40

- Performance improvements for parsing source maps in SourceMapConsumer.

# 0.1.39

- Fix a bug where setting a source's contents to null before any source content had been set before threw a TypeError. See issue #131.

# 0.1.38

- Fix a bug where finding relative paths from an empty path were creating absolute paths. See issue #129.

# 0.1.37

- Fix a bug where if the source root was an empty string, relative source paths would turn into absolute source paths. Issue #124.

# 0.1.36

- Allow the `names` mapping property to be an empty string. Issue #121.

# 0.1.35

- A third optional parameter was added to `SourceNode.fromStringWithSourceMap` to specify a path that relative sources in the second parameter should be relative to. Issue #105.
- If no file property is given to a `SourceMapGenerator`, then the resulting source map will no longer have a `null` file property. The property will simply not exist. Issue #104.
- Fixed a bug where consecutive newlines were ignored in `SourceNode`s. Issue #116.

# 0.1.34

- Make `SourceNode` work with windows style ("\r\n") newlines. Issue #103.
- Fix bug involving source contents and the `SourceMapGenerator.prototype.applySourceMap`. Issue #100.

# 0.1.33

- Fix some edge cases surrounding path joining and URL resolution.
- Add a third parameter for relative path to `SourceMapGenerator.prototype.applySourceMap`.
- Fix issues with mappings and EOLs.

# 0.1.32

- Fixed a bug where SourceMapConsumer couldn't handle negative relative columns (issue 92).
- Fixed test runner to actually report number of failed tests as its process exit code.
- Fixed a typo when reporting bad mappings (issue 87).

# 0.1.31

- Delay parsing the mappings in SourceMapConsumer until queried for a source location.
- Support Sass source maps (which at the time of writing deviate from the spec in small ways) in SourceMapConsumer.

# 0.1.30

- Do not join source root with a source, when the source is a data URI.
- Extend the test runner to allow running single specific test files at a time.
- Performance improvements in `SourceNode.prototype.walk` and `SourceMapConsumer.prototype.eachMapping`.
- Source map browser builds will now work inside Workers.
- Better error messages when attempting to add an invalid mapping to a `SourceMapGenerator`.

# 0.1.29

- Allow duplicate entries in the `names` and `sources` arrays of source maps (usually from TypeScript) we are parsing. Fixes github issue 72.

# 0.1.28

- Skip duplicate mappings when creating source maps from SourceNode; github issue 75.

# 0.1.27

- Don't throw an error when the `file` property is missing in SourceMapConsumer, we don't use it anyway.

# 0.1.26

- Fix SourceNode.fromStringWithSourceMap for empty maps. Fixes github issue 70.

# 0.1.25

- Make compatible with browserify

# 0.1.24

- Fix issue with absolute paths and `file://` URIs. See https://bugzilla.mozilla.org/show_bug.cgi?id=885597

# 0.1.23

- Fix issue with absolute paths and sourcesContent, github issue 64.

# 0.1.22

- Ignore duplicate mappings in SourceMapGenerator. Fixes github issue 21.

# 0.1.21

- Fixed handling of sources that start with a slash so that they are relative to the source root's host.

# 0.1.20

- Fixed github issue #43: absolute URLs aren't joined with the source root anymore.

# 0.1.19

- Using Travis CI to run tests.

# 0.1.18

- Fixed a bug in the handling of sourceRoot.

# 0.1.17

- Added SourceNode.fromStringWithSourceMap.

# 0.1.16

- Added missing documentation.
- Fixed the generating of empty mappings in SourceNode.

# 0.1.15

- Added SourceMapGenerator.applySourceMap.

# 0.1.14

- The sourceRoot is now handled consistently.

# 0.1.13

- Added SourceMapGenerator.fromSourceMap.

# 0.1.12

- SourceNode now generates empty mappings too.

# 0.1.11

- Added name support to SourceNode.

# 0.1.10

- Added sourcesContent support to the customer and generator.