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react-native-devtools-frontend/node_modules/is-reference
Tim van der Lippe 6d109a9d45 Update Mocha to 8.3.0
This also adds Python-2.0 to the list of accepted licenses.

Lastly, it fixes a bug where the package.json files were incorrectly
reordered. For the `exports` of a particular package, the order that
the entrypoints are defined in is crucial. Therefore, we should not
alter the order of entrypoints and instead maintain the originally
defined ordering. We can use an `OrderedDict` to ensure that Python
always loads the JSON files in the same order.

DISABLE_THIRD_PARTY_CHECK=NPM update
R=jacktfranklin@chromium.org

Bug: none
Change-Id: I5a309782de6015edea6ba3b502aa0db1f008d973
Reviewed-on: https://chromium-review.googlesource.com/c/devtools/devtools-frontend/+/2692909
Auto-Submit: Tim van der Lippe <tvanderlippe@chromium.org>
Reviewed-by: Jack Franklin <jacktfranklin@chromium.org>
Commit-Queue: Tim van der Lippe <tvanderlippe@chromium.org>
2021-02-17 12:08:49 +00:00
..
2021-02-17 12:08:49 +00:00

is-reference

Utility for determining whether an AST node is a reference.

foo is a reference in these cases:

console.log( foo );
var foo;
function foo () {}
function bar ( foo ) {}
export { foo as x };

foo is not a reference in these cases:

var obj = { foo: 1 };
console.log( obj.foo );
export { x as foo };

In all cases, foo is an Identifier node, but the two kinds must be treated differently for the purposes of scope analysis etc. (The examples are non-exhaustive.)

Installation

npm install is-reference

Usage

Example using Acorn and estree-walker:

const { parse } = require( 'acorn' );
const { walk } = require( 'estree-walker' );
const isReference = require( 'is-reference' );

const identifiers = [];
const references = [];

const ast = parse( `var a = b.c;` );

walk( ast, {
	enter ( node, parent ) {
		if ( node.type === 'Identifier' ) identifiers.push( node );
		if ( isReference( node, parent ) ) references.push( node );
	}
});

identifiers.forEach( node => console.log( node.name ) ); // a, b, c
references.forEach( node => console.log( node.name ) ); // a, b

License

MIT