@zkochan/pnpm/cached_node_modules/eslint-plugin-promise/rules/always-return.js

A fast implementation of npm install

function isFunctionWithBlockStatement (node) {
  if (node.type === 'FunctionExpression') {
    return true
  }
  if (node.type === 'ArrowFunctionExpression') {
    return node.body.type === 'BlockStatement'
  }
  return false
}

function isReturnOrThrowStatement (node) {
  return node.type === 'ReturnStatement' || node.type === 'ThrowStatement'
}

module.exports = {
  create: function (context) {
    return {
      MemberExpression: function (node) {
        var firstArg, body, lastStatement

        if (node.property.name !== 'then' || node.parent.type !== 'CallExpression') {
          return
        }

        firstArg = node.parent.arguments[0]
        if (!firstArg || !isFunctionWithBlockStatement(firstArg)) {
          return
        }

        body = firstArg.body.body
        lastStatement = body[body.length - 1]
        if (!lastStatement || !isReturnOrThrowStatement(lastStatement)) {
          context.report(node, 'Each then() should return a value or throw')
        }
      }
    }
  }
}