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ast-v8-to-istanbul

npmv1.0.6TypeScript

AST-aware v8-to-istanbul

Safe to adopt

Yes — ast-v8-to-istanbul scores well across adoption, maintenance, weight, supply chain, and licensing. 23.2M downloads per week and 1 known dependents. Last published 2 days ago. 29 releases in the last 2 years.

  • AAdoption: grade A, Excellent.

    23.2M downloads per week and 1 known dependents.

  • AMaintenance: grade A, Excellent.

    Last published 2 days ago. 29 releases in the last 2 years.

  • BWeight: grade B, Good.

    Pulls in 6 transitive packages, about 389 KB installed (at least — some of the tree is still being crawled).

  • BSupply chain: grade B, Good.

    This package has a single maintainer (bus factor of 1).

  • ALicense: grade A, Excellent.

    MIT — permissive, with no copyleft found in the dependency tree.

Grades are computed deterministically from registry metadata collected by PackageGraph — downloads, dependents, publish dates, the resolved dependency tree, maintainer count, and declared licenses. No third-party scores are used.

Install cost

What you actually take on by adding ast-v8-to-istanbul to a project.

3
Direct dependencies

Runtime packages this one declares itself.

6
Total installed

Distinct packages in the full runtime tree, deduplicated the way a package manager would.

389 KB
Install size

Unpacked size of this package plus its entire runtime tree.

2
Tree depth

Longest resolved dependency chain below this package.

Part of this dependency tree has not been crawled yet, so these figures are a lower bound rather than a final total.

Licenses in the dependency tree

MIT

Every license you inherit by installing ast-v8-to-istanbul, not just its own. Check this before a legal review, not after.

Compatibility

Node.js
No constraint declared
Module format
ESM only
TypeScript
Types included
Install scripts
None

Quick start

A usage example from the ast-v8-to-istanbul README.

tsFull README ↗
import { convert } from "ast-v8-to-istanbul";
import { parseAstAsync } from "vite";
import type { CoverageMapData } from "@vitest/istanbul-lib-coverage";

const data: CoverageMapData = await convert({
  // Bring-your-own AST parser
  ast: parseAstAsync(<code>),

  // Code of the executed file (not the source file)
  code: "function sum(a, b) {\n  return a + b ...",

  // Execution wrapper offset
  wrapperLength: 0,
Example truncated — see the full README.

Dependencies

Declared by ast-v8-to-istanbul v1.0.6. Runtime dependencies are installed with the package; dev dependencies are not.

Runtime (3)

@jridgewell/trace-mapping ^0.3.31estree-walker ^3.0.3js-tokens ^10.0.0

Dev (28)

@babel/parser ^8.0.4@babel/types ^8.0.4@sveltejs/vite-plugin-svelte ^7.3.0@types/estree ^1.0.9@types/node ^26.4.1@vitejs/plugin-vue ^6.0.8@vitest/coverage-istanbul ^5.0.0@vitest/coverage-v8 ^5.0.0@vitest/istanbul-lib-coverage ^1.0.0@vitest/istanbul-lib-instrument ^1.0.0@vitest/istanbul-lib-report ^1.0.0@vitest/istanbul-lib-source-maps ^1.0.0acorn ^8.18.0gh-pages ^6.3.0magic-string ^1.2.3oxc-parser ^0.148.0oxfmt ^0.66.0oxlint ^1.81.0oxlint-tsgolint ^7.0.2001publint ^0.3.24rollup ^4.63.1tinyrainbow ^3.1.1tsdown ^0.23.0typescript ^6.0.3vite ^8.2.2vitest ^5.0.0vue ^3.5.42yaml ^2.9.0

Used by

Popular packages that depend on ast-v8-to-istanbul.

@vitest/coverage-v8npm

V8 coverage provider for Vitest

↓ 0/wk◈ 52 dependents⚖ MITTS

Relationship graph

Dependencies (left) and dependents (right) of ast-v8-to-istanbul.

estree-walker@jridgewell/trace…@vitest/coverage-…ast-v8-to-istanbul
ast-v8-to-istanbul dependencies dependents

Frequently installed together

vitestnpm

Next generation testing framework powered by Vite

↓ 92.7M/wk◈ 129 dependents⚖ MITTS
@vitest/browsernpm

Browser running for Vitest

↓ 0/wk◈ 7 dependents⚖ MITTS
std-envnpm

Runtime agnostic JS utils

↓ 97.9M/wk◈ 6 dependents⚖ MITTS
obugnpm

A lightweight JavaScript debugging utility, forked from debug, featuring TypeScript and ESM support.

↓ 61.1M/wk◈ 8 dependents⚖ MITTS
magicastnpm

Modify a JS/TS file and write back magically just like JSON!

↓ 33.9M/wk◈ 3 dependents⚖ MITTS
@vitest/browser-playwrightnpm

Browser running for Vitest using playwright

↓ 0/wk◈ 10 dependents⚖ MITTS
@bcoe/v8-coveragenpm

Helper functions for V8 coverage files.

↓ 0/wk◈ 2 dependents⚖ MIT
pathenpm

Universal filesystem path utils

↓ 0/wk◈ 25 dependents⚖ MITTS
tinyrainbownpm

A small library to print colourful messages.

↓ 0/wk◈ 10 dependents⚖ MITTS
istanbul-lib-coveragenpm

Data library for istanbul coverage objects

↓ 0/wk◈ 10 dependents⚖ BSD-3-Clause
@types/istanbul-lib-coveragenpm

TypeScript definitions for istanbul-lib-coverage

↓ 0/wk◈ 10 dependents⚖ MITTS
@types/istanbul-reportsnpm

TypeScript definitions for istanbul-reports

↓ 0/wk◈ 7 dependents⚖ MITTS

Release history

29 releases in the last two years, typically about 26 days apart.

Recent versions of ast-v8-to-istanbul
VersionPublishedSizeLicense
1.0.6latest2 days ago56 KBMIT
1.0.51 month ago51 KBMIT
1.0.43 months ago50 KBMIT
1.0.33 months ago50 KBMIT
1.0.23 months ago—MIT
1.0.06 months ago56 KBMIT
0.3.126 months ago56 KBMIT
0.3.117 months ago56 KBMIT
0.3.108 months ago39 KBMIT
0.3.98 months ago37 KBMIT
0.3.810 months ago35 KBMIT
0.3.710 months ago34 KBMIT
0.3.611 months ago34 KBMIT
0.3.51 year ago34 KBMIT
0.3.41 year ago34 KBMIT

Overview

ast-v8-to-istanbul is an npm package that aST-aware v8-to-istanbul. It is extremely widely used, with about 23.2M downloads per week and 1 known dependents in the graph. The latest version is 1.0.6, released under the MIT license.

Who should use it

Teams working in the npm ecosystem who need aST-aware v8-to-istanbul and value a battle-tested, widely-adopted solution.

When not to use it

Consider an alternative if you need to minimize your dependency tree, or if a more actively-maintained option better fits your npm stack.

Pros

  • Large, well-established user base (23.2M weekly downloads).
  • Ships TypeScript type definitions.
  • Clear open-source license (MIT).

Cons

  • Large dependency tree (31 direct dependencies) increases install size and audit surface.

Auto-generated from collected registry metadata. No external claims are inferred.

Maintainers

ariperkkio

Frequently asked questions

Should I use ast-v8-to-istanbul?

Yes — ast-v8-to-istanbul scores well across adoption, maintenance, weight, supply chain, and licensing. 23.2M downloads per week and 1 known dependents. Last published 2 days ago. 29 releases in the last 2 years.

How do I install ast-v8-to-istanbul?

Run `npm install ast-v8-to-istanbul` to add ast-v8-to-istanbul to your npm project.

How many dependencies does ast-v8-to-istanbul have?

ast-v8-to-istanbul declares 31 direct dependencies and pulls in 6 packages in total once its runtime tree is resolved totalling about 389 KB on disk.

What license is ast-v8-to-istanbul released under?

ast-v8-to-istanbul is distributed under the MIT license.

How popular is ast-v8-to-istanbul?

ast-v8-to-istanbul has approximately 23,240,433 downloads per week and 1 known dependent packages.

Is ast-v8-to-istanbul still maintained?

The most recent release of ast-v8-to-istanbul (v1.0.6) was published 2 days ago.

Does ast-v8-to-istanbul run install scripts?

No. ast-v8-to-istanbul does not define preinstall, install, or postinstall scripts, so installing it does not execute publisher-supplied code.