All Files

• Before committing, run Scripts/lint to detect linting violations
• Run Scripts/format to automatically fix many linting violations
• Remove unnecessary trailing whitespace
  • Note that 2 trailing spaces is valid Markdown to create a line break like , so those should not be removed
• End each file with a single newline character

Swift

Sample

• Avoid force unwrapping optionals with ! in production code
  • Production code is located under the Sources/mas folder
  • However, force unwrapping is encouraged in tests for concision; tests should break when any expected conditions aren't met
• Prefer structs over classes wherever possible
• Default to marking classes as final
• Prefer composition over protocol conformance over class inheritance
• Break lines at 120 characters
• Use tabs for indentation
• Use let whenever possible to make immutable bindings
• Name most parameters in functions & enum cases
• Use trailing closures
• Let the compiler infer the type whenever possible
• Group computed properties below stored properties
• Use a blank line above & below computed properties
• Apply the capitalization of the first letter throughout an acronym or initialism
• Use () for void arguments & Void for void return types
• Strongify weak references instead of evaluating them multiple times