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@vitest/istanbul-lib-instrument

v1.0.1

Published

Core istanbul API for JS code coverage

Vulnerabilities

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  • 0Medium
  • 0Low

Links

Git

Maintainers

ariperkkioariperkkioantfuantfuhiogawahiogawaoreannooreannoyyx990803yyx990803

Keywords

coverageinstrumentationistanbuljsvitest

Readme

@vitest/istanbul-lib-instrument

Build Status

Istanbul instrumenter library, implemented using Babel. The implementation is inspired by prior art by @dtinth as demonstrated in the __coverage__ babel plugin.

It provides 2 "modes" of instrumentation.

  • An Instrumenter API that performs the instrumentation using babel as a library.

  • A programVisitor function for the Babel AST that can be used by a Babel plugin to emit instrumentation for ES6 code directly without any source map processing. This is the preferred path for babel users. The Babel plugin is called babel-plugin-istanbul.