Sha256: e41b950dd9dc6f78e398ae4a1ba3ba5205b920493f299ecf97d88cebd33d0208
Contents?: true
Size: 1.41 KB
Versions: 26
Compression:
Stored size: 1.41 KB
Contents
function isReference(node, parent) {
if (node.type === 'MemberExpression') {
return !node.computed && isReference(node.object, node);
}
if (node.type === 'Identifier') {
if (!parent)
return true;
switch (parent.type) {
// disregard `bar` in `foo.bar`
case 'MemberExpression': return parent.computed || node === parent.object;
// disregard the `foo` in `class {foo(){}}` but keep it in `class {[foo](){}}`
case 'MethodDefinition': return parent.computed;
// disregard the `foo` in `class {foo=bar}` but keep it in `class {[foo]=bar}` and `class {bar=foo}`
case 'FieldDefinition': return parent.computed || node === parent.value;
// disregard the `bar` in `{ bar: foo }`, but keep it in `{ [bar]: foo }`
case 'Property': return parent.computed || node === parent.value;
// disregard the `bar` in `export { foo as bar }` or
// the foo in `import { foo as bar }`
case 'ExportSpecifier':
case 'ImportSpecifier': return node === parent.local;
// disregard the `foo` in `foo: while (...) { ... break foo; ... continue foo;}`
case 'LabeledStatement':
case 'BreakStatement':
case 'ContinueStatement': return false;
default: return true;
}
}
return false;
}
export default isReference;
Version data entries
26 entries across 26 versions & 1 rubygems