Language reference

The reference describes the syntax and behavior you can use in Cloth programs. Begin with the tutorials if you are new to the language.

Types covers primitives, strings, arrays, objects, enums, structs, and void. Language rules covers declarations, functions, control flow, classes, interfaces, conversions, and memory.

For building and organizing projects, use Tools and projects.

Core conventions

• Source files end in .co and define one type named by the file stem.
• Packages come from source directories; source files have no module declaration.
• Identifiers are case-sensitive; uppercase declaration names are public.
• References are non-null unless qualified with ?.
• int, uint, and float always mean int32, uint32, and float32.
• Statements use semicolons; function and control-flow bodies use braces.

Examples that intentionally show invalid code are labeled as such.