Function isMethodValue

src/language-js/print/function.js:22–31

({ node, key, parent })

 */

const isMethodValue = ({ node, key, parent }) =>
  key === "value" &&
  node.type === "FunctionExpression" &&
  (parent.type === "ObjectMethod" ||
    parent.type === "ClassMethod" ||
    parent.type === "ClassPrivateMethod" ||
    parent.type === "MethodDefinition" ||
    parent.type === "TSAbstractMethodDefinition" ||
    parent.type === "TSDeclareMethod" ||
    (parent.type === "Property" && isMethod(parent)));

/*
- `FunctionDeclaration`