Coerces thrown errors into `T | Error` as a return value.
Synchronous validation of a path existing either as a file or as a directory.
Runtime for Regenerator-compiled generator and async functions.
ECMAScript parser
Prebuilt sharp for use with Linux (glibc) x64
Prebuilt sharp for use with Linux (musl) x64
CJS (Node.js) style modules resolver
An iteration of the Node.js core streams with a series of improvements
Mock http requests made using fetch
TypeScript client library for the Mistral AI API
Dependency-free RFC 3986 URI toolbox
A public-facing copy of [error-catalog-nodejs](../error-catalog-nodejs) which copies most of the existing functionality while only disclosing non-internal errors to the published NPM package.
Cross platform child_process#spawn and child_process#spawnSync
Compare items in two sequences to find a longest common subsequence
Traverse an ESTree-compliant AST
Prebuilt sharp for use with Linux (glibc) 64-bit ARM
This package contains an eslint plugin that enforces some default rules for using EUI.
Interface used to connect Apollo Gateway to Apollo Server
A small JS+SVG library for drawing railroad syntax diagrams.
Prebuilt sharp for use with macOS 64-bit ARM
Prebuilt sharp for use with Linux (musl) 64-bit ARM
Runtime to be use with the Flow Enums transform.
No description provided.
Prebuilt sharp for use with macOS x64
Simple Either monad implementation. Great way to chain actions that may result in error and keep their context, both successful and erroneous.
Implements an Either monad in Ruby for cleaner error handling.
A Hash that complains a lot -- used to simplify optional parameters. WhinyHash instances raise errors if unset keys are accessed either directly or by merge.
A logger that silently collects information in the background and when an error is raised, logs a hash either out to the System or pushes the log to a service such as Loggly. The log hash contains information such as the backtrace, any logs from calling classes and methods, and configurable contextual information.
This package is originally units but since i can't find the project to fork on github, I made a gem. Also, there is a minor bug (pounds to grams wrong conversion calculation) and I extracted only the conversions needed in the kitchen. Use either this package or units; both will cause a stack too deep error.
Deferrable Gratification (DG) facilitates asynchronous programming in Ruby, by helping create abstractions around complex operations built up from simpler ones. It helps make asynchronous code less error-prone and easier to compose. It also provides some enhancements to the Deferrable API. Features include: * fluent (aka chainable) syntax for registering multiple callbacks and errbacks to the same Deferrable. * a #bothback method for registering code to run on either success or failure. * a combinator library for building up complex asynchronous operations out of simpler ones.
Null Object Models is a gem that provides finder method(s) extensions to ActiveRecord::Base objects. These finder methods will return either default or defined null objects if an object is not found with the given ID(s). This is very useful for preventing nil errors. I recommend using this gem if you have dangling records and have yet to implement some sort of soft destroy implementation.
The purpose of this gem is to prevent directly running the inherited methods you choose to block at either the class or instance level, and instead do one of two things: run an alternative block which may or may not invoke the original method, or simply raise an error message. The error message can be customized. The original method can still be called under a different name. The entire object or class can return "unproxied" versions of themselves to preserve the original functionality. This was originally created to help enforce the use of interactors over directly calling ActiveRecord methods like create, save, and update. As with any metaprogramming, this gives you plenty of rope to hang yourself if you try to get too "clever". Treat this library like salt; use sparingly, because over time its cumulative effect will kill you :)
This gem provides a mechanism through which it is possible to specify that an arbitrary number of external dependencies are satisfied before a test run can be executed. Dependencies are added by specifying a name, command, satisfied_regexp and errors_regexp parameter for each. The command refers to a script that is run to satisfy or test the dependency. If the output of the command (either to standard output or standard error) matches the satisfied_regexp then the dependency is considered met otherwise any lines in the output matching errors_regexp are output and the dependency test waits for changes to the codebase before trying to satisfy the dependency again.
Miscellaneous methods that may or may not be useful. sh:: Safely pass untrusted parameters to sh scripts. fork_and_check:: Run a block in a forked process and raise an exception if the process returns a non-zero value. do_and_exit, do_and_exit!:: Run a block. If the block does not run exit!, a successful exec or equivalent, run exit(1) or exit!(1) ourselves. Useful to make sure a forked block either runs a successful exec or dies. Any exceptions from the block are printed to standard error. overwrite:: Safely replace a file. Writes to a temporary file and then moves it over the old file. tempname_for:: Generates an unique temporary path based on a filename. The generated filename resides in the same directory as the original one. try_n_times:: Retries a block of code until it succeeds or a maximum number of attempts (default 10) is exceeded. Exception#to_formatted_string:: Returns a string that looks like how Ruby would dump an uncaught exception. IO#best_datasync:: Tries fdatasync, falling back to fsync, falling back to flush.
# Trope **[Documentation][docs] - [Gem][gems] - [Source][source]** Prototyping language that transcompiles into pure Ruby code. 1. Build your concept in Trope. 2. Write specs. 3. Transcompile into Ruby. 4. Destroy Trope files. 5. Red, green, refactor. ## Install > NOTE: Trope is not released yet, the gem is just a placeholder. ### Bundler: `gem 'trope'` ### RubyGems: `gem install trope` ## Example Create `library.trope`: ```ruby object Book attr name <String> -!wd 'Unnamed book' attr isbn <Integer> -w attr library <Library> -w do before write { @library.books.delete(self) unless @library.nil? } after write { @library.books.push(self) unless @library.books.include?(self) } end end object Library attr books <Array> -d Array.new meth add_book do |attributes_or_book <Hash, Book>| book = attributes_or_book.is_a?(Book) ? attributes_or_book : Book.new(attributes_or_book) book.library = self @books << book end end ``` Now generate the Ruby code: ```sh $ trope compile libary.trope ``` Those 15 lines will be transcompiled into the following pure Ruby code in `library.rb`: ```ruby class Book class Error < RuntimeError; end class InvalidAttributesError < Error def to_s 'attributes must be a Hash or respond to #to_h' end end class MissingAttributeError < Error def initialize(attr_name, attr_class) @name, @class = attr_name.to_s, attr_class.to_s end def to_s "attribute '#@name' does not exist for #@class" end end class MissingNameError < Error def to_s 'name cannot be nil' end end class InvalidNameError < Error def to_s 'name must be an instance of String or respond to :to_s' end end class InvalidIsbnError < Error def to_s 'isbn must be an instance of Integer or respond to :to_i' end end class MissingLibraryError < Error def to_s 'library cannot be nil' end end class InvalidLibraryError < Error def to_s 'library must be an instance of Library' end end attr_reader *(@@_attributes = [:name, :isbn, :library]) def initialize(attributes={}) raise InvalidAttributesError unless attributes.is_a?(Hash) || attributes.respond_to?(:to_h) attributes = attributes.to_h unless attributes.is_a?(Hash) raise MissingNameError if attributes.has_key?(:name) && attributes[:name].nil? attributes[:name] = 'Unnamed book' unless attributes.has_key?(:name) attributes.each do |name, value| raise MissingAttributeError.new(name, self.class) unless @@_attributes.include?(name.to_sym) setter_method = "#{name}=" setter_method = "_#{setter_method}" unless self.class.method_defined?(setter_method) send(setter_method, value) end end def name=(value) raise MissingNameError if value.nil? raise InvalidNameError unless value.is_a?(String) || value.respond_to?(:to_s) value = value.to_i unless value.is_a?(Integer) @name = value end def isbn=(value) raise InvalidIsbnError unless value.is_a?(Integer) || value.respond_to?(:to_i) value = value.to_i unless value.is_a?(Integer) @isbn = value end def library=(value) raise InvalidLibraryError unless value.is_a?(Library) || value.nil? @library.books.delete(self) unless @library.nil? @library = value @library.books.push(self) unless @library.books.include?(self) @library end end class Library class Error < RuntimeError; end class InvalidAttributesError < Error def to_s 'attributes must be an instance of Hash or respond to #to_h' end end class MissingAttributeError < Error def initialize(attr_name, attr_class) @name, @class = attr_name.to_s, attr_class.to_s end def to_s "attribute '#@name' does not exist for #@class" end end class InvalidBooksError < Error def to_s 'books must be an instance of Array or respond to #to_a' end end attr_reader *(@@_attributes = [:books]) def initialize(attributes={}) raise InvalidAttributesError unless attributes.is_a?(Hash) || attributes.respond_to?(:to_h) attributes = attributes.to_h unless attributes.is_a?(Hash) attributes[:books] = Array.new unless attributes.has_key?(:books) attributes.each do |name, value| raise MissingAttributeError.new(name, self.class) unless @@_attributes.include?(name.to_sym) setter_method = "#{name}=" setter_method = "_#{setter_method}" unless self.class.method_defined?(setter_method) send(setter_method, value) end end def add_book(attributes_or_book={}) raise InvalidAttributesError unless attributes_or_book.is_a?(Hash) || attributes_or_book.respond_to?(:to_h) || attributes_or_book.is_a?(Book) attributes_or_book = attributes_or_book.to_h unless attributes_or_book.is_a?(Hash) || attributes_or_book.is_a?(Book) book = attributes_or_book.is_a?(Book) ? attributes_or_book : Book.new(attributes_or_book) book.library = self @books << book end protected def _books=(value) raise InvalidBooksError unless value.is_a?(Array) || value.respond_to?(:to_a) value = value.to_a unless value.is_a?(Array) @books = value end end ``` Using the transcompiled Ruby code will produce the expected results: ```ruby p library = Library.new # => #<Library:0x007fc55c0ce418 @books=[]> p library.add_book name: 'Book 1', isbn: 1 # => [#<Book:0x007fc55c0cde78 @name=0, @isbn=1, @library=#<Library:0x007fc55c0ce418 @books=[...]>>] p library # => #<Library:0x007fc55c0ce418 @books=[#<Book:0x007fc55c0cde78 @name=0, @isbn=1, @library=#<Library:0x007fc55c0ce418 ...>>]> p library.books.first # => #<Book:0x007fc55c0cde78 @name=0, @isbn=1, @library=#<Library:0x007fc55c0ce418 @books=[#<Book:0x007fc55c0cde78 ...>]>> p library.books.first.isbn = nil # => nil p library.books.first.name = nil # => Book::MissingNameError: name cannot be nil p library.books.first.library = nil # => Book::MissingLibraryError: library cannot be nil p library.books.first.isbn = ['array'] # => Book::InvalidIsbnError: isbn must be an instance of Integer or respond to :to_i p library = Library.new(books: 123) # => Library::InvalidBooksError: books must be an instance of Array or respond to #to_a ``` ### Breakdown ```ruby object Book attr name <String> -!wd 'Unnamed book' end ``` This says that I have an object `Book` that has an attribute `name` (`attr name`) that must either be an instance/subclass of `String` or be able to convert to an instance of `String` using `#to_s` (`<String>`). It is a required attribute that can never be set to nil (`!`), has a writer method (`w`), and defaults to 'Unnamed book'. The minus sign (`-`) indicates a 'switch' or 'option', must like most *nix command line programs. The example could also have been written like so: ```ruby object Book attr name <String> -! -w -d 'Unnamed book' end ``` The above examples will transcompile into the following: ```ruby class Book class Error < RuntimeError; end class InvalidAttributesError < Error def to_s 'attributes must be a Hash or respond to #to_h' end end class MissingAttributeError < Error def initialize(attr_name, attr_class) @name, @class = attr_name.to_s, attr_class.to_s end def to_s "attribute '#@name' does not exist for #@class" end end class MissingNameError < Error def to_s 'name cannot be nil' end end class InvalidNameError < Error def to_s 'name must be an instance of String or respond to :to_s' end end attr_reader *(@@_attributes = [:name]) @@_required_attributes = [:name] def initialize(attributes={}) raise InvalidAttributesError unless attributes.is_a?(Hash) || attributes.respond_to?(:to_h) attributes = attributes.to_h unless attributes.is_a?(Hash) raise MissingNameError if attributes.has_key?(:name) && attributes[:name].nil? attributes[:name] = 'Unnamed book' unless attributes.has_key?(:name) attributes.each do |name, value| raise MissingAttributeError.new(name, self.class) unless @@_attributes.include?(name.to_sym) setter_method = "#{name}=" setter_method = "_#{setter_method}" unless self.class.method_defined?(setter_method) send(setter_method, value) end end def name=(value) raise MissingNameError if value.nil? raise InvalidNameError unless value.is_a?(String) || value.respond_to?(:to_s) value = value.to_i unless value.is_a?(Integer) @name = value end end ``` ## Contributing * Check out the latest master to make sure the feature hasn't been implemented or the bug hasn't been fixed yet * Check out the issue tracker to make sure someone already hasn't requested it and/or contributed it * Fork the project * Start a feature/bugfix branch * Commit and push until you are happy with your contribution * Make sure to add tests for it. This is important so I don't break it in a future version unintentionally. * Please try not to mess with the Rakefile, VERSION, or Gemfile. If you want to have your own version, or is otherwise necessary, that is fine, but please isolate to its own commit so I can cherry-pick around it. ## Copyright Copyright © 2012 Ryan Scott Lewis <ryan@rynet.us>. The MIT License (MIT) - See LICENSE for further details. [docs]: http://rubydoc.info/gems/trope/frames [gems]: https://rubygems.org/gems/trope [source]: https://github.com/RyanScottLewis/trope
Miscellaneous methods that may or may not be useful. sh:: Safely pass untrusted parameters to sh scripts. Raise an exception if the script returns a non-zero value. fork_and_check:: Run a block in a forked process and raise an exception if the process returns a non-zero value. do_and_exit, do_and_exit!:: Run a block. If the block does not run exit!, a successful exec or equivalent, run exit(1) or exit!(1) ourselves. Useful to make sure a forked block either runs a successful exec or dies. Any exceptions from the block are printed to standard error. overwrite:: Safely replace a file. Writes to a temporary file and then moves it over the old file. tempname_for:: Generates an unique temporary path based on a filename. The generated filename resides in the same directory as the original one. try_n_times:: Retries a block of code until it succeeds or a maximum number of attempts (default 10) is exceeded. Exception#to_formatted_string:: Return a string that looks like how Ruby would dump an uncaught exception. IO#best_datasync:: Try fdatasync, falling back to fsync, falling back to flush. Random#exp:: Return a random integer 0 ≤ n < 2^argument (using SecureRandom). Random#float:: Return a random float 0.0 ≤ n < argument (using SecureRandom). Random#int:: Return a random integer 0 ≤ n < argument (using SecureRandom). Password:: A small wrapper for String#crypt that does secure salt generation and easy password verification.