.-.-.-.-.-

package.json000064400000001715151701437570007050 0ustar00{
  "_id": "aproba@2.0.0",
  "_inBundle": true,
  "_location": "/npm/aproba",
  "_phantomChildren": {},
  "_requiredBy": [
    "/npm/libnpmhook",
    "/npm/libnpmorg",
    "/npm/libnpmteam"
  ],
  "author": {
    "name": "Rebecca Turner",
    "email": "me@re-becca.org"
  },
  "bugs": {
    "url": "https://github.com/iarna/aproba/issues"
  },
  "dependencies": {},
  "description": "A ridiculously light-weight argument validator (now browser friendly)",
  "devDependencies": {
    "standard": "^11.0.1",
    "tap": "^12.0.1"
  },
  "directories": {
    "test": "test"
  },
  "files": [
    "index.js"
  ],
  "homepage": "https://github.com/iarna/aproba",
  "keywords": [
    "argument",
    "validate"
  ],
  "license": "ISC",
  "main": "index.js",
  "name": "aproba",
  "repository": {
    "type": "git",
    "url": "git+https://github.com/iarna/aproba.git"
  },
  "scripts": {
    "pretest": "standard",
    "test": "tap --100 -J test/*.js"
  },
  "version": "2.0.0"
}
LICENSE000064400000001360151701437600005555 0ustar00Copyright (c) 2015, Rebecca Turner <me@re-becca.org>

Permission to use, copy, modify, and/or distribute this software for any
purpose with or without fee is hereby granted, provided that the above
copyright notice and this permission notice appear in all copies.

THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

index.js000064400000007074151701437600006225 0ustar00'use strict'
module.exports = validate

function isArguments (thingy) {
  return thingy != null && typeof thingy === 'object' && thingy.hasOwnProperty('callee')
}

const types = {
  '*': {label: 'any', check: () => true},
  A: {label: 'array', check: _ => Array.isArray(_) || isArguments(_)},
  S: {label: 'string', check: _ => typeof _ === 'string'},
  N: {label: 'number', check: _ => typeof _ === 'number'},
  F: {label: 'function', check: _ => typeof _ === 'function'},
  O: {label: 'object', check: _ => typeof _ === 'object' && _ != null && !types.A.check(_) && !types.E.check(_)},
  B: {label: 'boolean', check: _ => typeof _ === 'boolean'},
  E: {label: 'error', check: _ => _ instanceof Error},
  Z: {label: 'null', check: _ => _ == null}
}

function addSchema (schema, arity) {
  const group = arity[schema.length] = arity[schema.length] || []
  if (group.indexOf(schema) === -1) group.push(schema)
}

function validate (rawSchemas, args) {
  if (arguments.length !== 2) throw wrongNumberOfArgs(['SA'], arguments.length)
  if (!rawSchemas) throw missingRequiredArg(0, 'rawSchemas')
  if (!args) throw missingRequiredArg(1, 'args')
  if (!types.S.check(rawSchemas)) throw invalidType(0, ['string'], rawSchemas)
  if (!types.A.check(args)) throw invalidType(1, ['array'], args)
  const schemas = rawSchemas.split('|')
  const arity = {}

schemas.forEach(schema => {
    for (let ii = 0; ii < schema.length; ++ii) {
      const type = schema[ii]
      if (!types[type]) throw unknownType(ii, type)
    }
    if (/E.*E/.test(schema)) throw moreThanOneError(schema)
    addSchema(schema, arity)
    if (/E/.test(schema)) {
      addSchema(schema.replace(/E.*$/, 'E'), arity)
      addSchema(schema.replace(/E/, 'Z'), arity)
      if (schema.length === 1) addSchema('', arity)
    }
  })
  let matching = arity[args.length]
  if (!matching) {
    throw wrongNumberOfArgs(Object.keys(arity), args.length)
  }
  for (let ii = 0; ii < args.length; ++ii) {
    let newMatching = matching.filter(schema => {
      const type = schema[ii]
      const typeCheck = types[type].check
      return typeCheck(args[ii])
    })
    if (!newMatching.length) {
      const labels = matching.map(_ => types[_[ii]].label).filter(_ => _ != null)
      throw invalidType(ii, labels, args[ii])
    }
    matching = newMatching
  }
}

function missingRequiredArg (num) {
  return newException('EMISSINGARG', 'Missing required argument #' + (num + 1))
}

function unknownType (num, type) {
  return newException('EUNKNOWNTYPE', 'Unknown type ' + type + ' in argument #' + (num + 1))
}

function invalidType (num, expectedTypes, value) {
  let valueType
  Object.keys(types).forEach(typeCode => {
    if (types[typeCode].check(value)) valueType = types[typeCode].label
  })
  return newException('EINVALIDTYPE', 'Argument #' + (num + 1) + ': Expected ' +
    englishList(expectedTypes) + ' but got ' + valueType)
}

function englishList (list) {
  return list.join(', ').replace(/, ([^,]+)$/, ' or $1')
}

function wrongNumberOfArgs (expected, got) {
  const english = englishList(expected)
  const args = expected.every(ex => ex.length === 1)
    ? 'argument'
    : 'arguments'
  return newException('EWRONGARGCOUNT', 'Expected ' + english + ' ' + args + ' but got ' + got)
}

function moreThanOneError (schema) {
  return newException('ETOOMANYERRORTYPES',
    'Only one error type per argument signature is allowed, more than one found in "' + schema + '"')
}

function newException (code, msg) {
  const err = new Error(msg)
  err.code = code
  /* istanbul ignore else */
  if (Error.captureStackTrace) Error.captureStackTrace(err, validate)
  return err
}

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