README
unist-util-position-from-estree
unist utility to get a position from an estree node.
Install
This package is ESM only:
Node 12+ is needed to use it and it must be import
ed instead of require
d.
npm:
npm install unist-util-position-from-estree
Use
import {parse} from 'acorn'
import {positionFromEstree} from 'unist-util-position-from-estree'
// Make acorn support line/column.
const node = parse('function x() { console.log(1) }', {
ecmaVersion: 2020,
locations: true
})
console.log(positionFromEstree(node)) // `Program`
console.log(positionFromEstree(node.body[0].id)) // `x`
console.log(positionFromEstree(node.body[0].body.body[0].expression)) // Call
Yields:
{
start: {line: 1, column: 1, offset: 0},
end: {line: 1, column: 32, offset: 31}
}
{
start: {line: 1, column: 10, offset: 9},
end: {line: 1, column: 11, offset: 10}
}
{
start: {line: 1, column: 16, offset: 15},
end: {line: 1, column: 30, offset: 29}
}
API
This package exports the following identifiers: positionFromEstree
.
There is no default export.
positionFromEstree(node)
Given a node
, returns a position
.
Related
Contribute
See contributing.md
in syntax-tree/.github
for ways to get
started.
See support.md
for ways to get help.
This project has a code of conduct. By interacting with this repository, organization, or community you agree to abide by its terms.