Html html = Html {
   Head {
      title = "Ceylon: home page";
   };
   Body {
      H2 ( "Welcome to Ceylon, ``user.name``!" ),
      P ( "Now get your code on :)" )
   };
};

Reference

This page lists concepts and links to their descriptions. The complete language specification is also available.

This page is very incomplete. Want to help? See how.

Structure and Declarations

• Keywords
• Modules
• Packages
• Compilation units
• Types
• Type abbreviations
• Type parameters
• Classes
• Interfaces
• objects
• Methods
• Attributes
• Annotations Ceylon 1.0

Statements

• assert statements
• break statements
• continue statements
• expression statements
• for statements
• if statements
• import statements
• return statements
• = (specification) statement
• switch statements
• throw statements
• try statements
• while statements

Expressions

• Expressions

Operators

• operator polymorphism
• ! (not)
• != (not equal)
• % (remainder)
• %= (remainder assign)
• & (Set intersection)
• && (and)
• &&= (and assign)
• &= (Set intersect assign)
• () (invoke)
• () (null-safe invoke)
• * (product)
• *= (multiply assign)
• + (sum)
• + (unary plus)
• ++ (increment)
• += (add assign)
• - (difference)
• - (unary minus)
• -- (decrement)
• -= (subtract assign)
• -> (entry)
• . (member)
• .. (spanned range)
• : (segmented range)
• / (quotient)
• /= (divide assign)
• < (less than)
• <= (less than or equal)
• <=> (compare)
• = (assign)
• == (equal)
• === (identical)
• > (greater than)
• >= (greater than or equal)
• [] (lookup)
• *. (spread attribute)
• *. (spread invoke)
• x[y..z] (span)
• x[y...] (upper span)
• x[...z] (lower span)
• x[y:n] (segment)
• ^ (power)
• in (in)
• is (is)
• | (Set union)
• |= (Set union assign)
• || (or)
• ||= (or assign)
• {} (invoke)
• {} (null-safe invoke)
• ~ (Set complement)
• ~= (Set complement assign)
• else
• then

Literals

• Integer literals
• Float literals
• String literals
• Character literals

Language module (ceylon.language)

The API documentation for ceylon.language.

Tools

• The ceylon command, ceylon
• An index of ceylon subcommands
• The Ceylon Ant tasks
• The configuration file format

Interoperability

• 'Calling' Ceylon from Java
• 'Calling' Java from Ceylon
• Type mapping

Module repositories

• Module repositories
• modules.ceylon-lang.org aka Ceylon Herd