diff options
Diffstat (limited to 'deps/npm/node_modules/copy-concurrently/node_modules/aproba/index.js')
-rw-r--r-- | deps/npm/node_modules/copy-concurrently/node_modules/aproba/index.js | 105 |
1 files changed, 105 insertions, 0 deletions
diff --git a/deps/npm/node_modules/copy-concurrently/node_modules/aproba/index.js b/deps/npm/node_modules/copy-concurrently/node_modules/aproba/index.js new file mode 100644 index 0000000000..6f3f797c09 --- /dev/null +++ b/deps/npm/node_modules/copy-concurrently/node_modules/aproba/index.js @@ -0,0 +1,105 @@ +'use strict' + +function isArguments (thingy) { + return thingy != null && typeof thingy === 'object' && thingy.hasOwnProperty('callee') +} + +var types = { + '*': {label: 'any', check: function () { return true }}, + A: {label: 'array', check: function (thingy) { return Array.isArray(thingy) || isArguments(thingy) }}, + S: {label: 'string', check: function (thingy) { return typeof thingy === 'string' }}, + N: {label: 'number', check: function (thingy) { return typeof thingy === 'number' }}, + F: {label: 'function', check: function (thingy) { return typeof thingy === 'function' }}, + O: {label: 'object', check: function (thingy) { return typeof thingy === 'object' && thingy != null && !types.A.check(thingy) && !types.E.check(thingy) }}, + B: {label: 'boolean', check: function (thingy) { return typeof thingy === 'boolean' }}, + E: {label: 'error', check: function (thingy) { return thingy instanceof Error }}, + Z: {label: 'null', check: function (thingy) { return thingy == null }} +} + +function addSchema (schema, arity) { + var group = arity[schema.length] = arity[schema.length] || [] + if (group.indexOf(schema) === -1) group.push(schema) +} + +var validate = module.exports = function (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) + var schemas = rawSchemas.split('|') + var arity = {} + + schemas.forEach(function (schema) { + for (var ii = 0; ii < schema.length; ++ii) { + var 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.*$/, 'E'), arity) + addSchema(schema.replace(/E/, 'Z'), arity) + if (schema.length === 1) addSchema('', arity) + } + }) + var matching = arity[args.length] + if (!matching) { + throw wrongNumberOfArgs(Object.keys(arity), args.length) + } + for (var ii = 0; ii < args.length; ++ii) { + var newMatching = matching.filter(function (schema) { + var type = schema[ii] + var typeCheck = types[type].check + return typeCheck(args[ii]) + }) + if (!newMatching.length) { + var labels = matching.map(function (schema) { + return types[schema[ii]].label + }).filter(function (schema) { return schema != null }) + throw invalidType(ii, labels, args[ii]) + } + matching = newMatching + } +} + +function missingRequiredArg (num) { + return newException('EMISSINGARG', 'Missing required argument #' + (num + 1)) +} + +function unknownType (num, type) { + return newException('EUNKNOWNTYPE', 'Unknown type ' + type + ' in argument #' + (num + 1)) +} + +function invalidType (num, expectedTypes, value) { + var valueType + Object.keys(types).forEach(function (typeCode) { + if (types[typeCode].check(value)) valueType = types[typeCode].label + }) + return newException('EINVALIDTYPE', 'Argument #' + (num + 1) + ': Expected ' + + englishList(expectedTypes) + ' but got ' + valueType) +} + +function englishList (list) { + return list.join(', ').replace(/, ([^,]+)$/, ' or $1') +} + +function wrongNumberOfArgs (expected, got) { + var english = englishList(expected) + var args = expected.every(function (ex) { return 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) { + var e = new Error(msg) + e.code = code + if (Error.captureStackTrace) Error.captureStackTrace(e, validate) + return e +} |