Tusk supports the following statements…

• type declarations.
• const declarations (with type inference).
• var declarations (with type inference).
• Assignment statements.
• Function and procedure calls.
• {$Include ...} statements.
• if statements.
• case statements (including a strict option).
• while loops.
• repeat loops.
• for := loops (with optional inline variable).
• for in loops (with optional inline variable).
• raise statements.
• try/finally and try/except statements.

Tusk does not yet support…

• Ranges in case labels.
• with statements.

Tuks supports these operators…

• Binary: +, -, *, /, div, mod.
• Binary: and, or, and not.
• Binary: =, <>, <, >, <=, >=.
• Unary: +, -, not.
• The ? : ternary opertor.
• is and as.
• in.
• ^ (for exponentiation and pointer dereferencing).
• @ (for address-of).
• @@ (to suppress implicit function calls).

Tusk does not yet support…

• The xor operator.
• Bitwise operators.

Tusk supports these data types…

• Integers: Int8, Int16, Int32, Int64, UInt8, UInt16, UInt32, UInt64, Integer, Cardinal, NativeInt, NativeUInt, ShortInt, Byte, SmallInt, Word.
• Floats: Single, Double, Currency, Decimal.
• Boolean.
• string, AnsiString, and UnicodeString.
• Char, AnsiChar, and WideChar.
• PChar and PAnsiChar.
• Variant and object.
• Dynamic arrays.
• Enums (including scoped enums).
• Sets (of enum, Byte, Int8, and AnsiChar).
• Pointers.
• Interfaces…
  • Methods
  • Properties
  • Array properties
  • Default array properties
  • GetEnumerator method (supporting for‥in loops)
  • Generic interfaces
• Anonymous methods.

Tusk does not yet support…

• Rational, BigRational, BitInt, BigCardinal.
• Int96, UInt96.
• Complex.
• TDuration, TMoment.
• TDSCharSet.
• WideString (use string instead).
• Other custom variants.
• Fluent SQL.
• Records.
• Static arrays.
• Generic types (other than dynamic arrays and interfaces).

Tusk's support for functions is ongoing. It currently supports…

• Default parameters.
• const, var, and out.
• Exit and Result.
• Global procedures / functions.
• Overloaded global procedures / functions.
• Overloaded interface methods.
• Interface methods (including generics).
• Anonymous procedures and functions.
• Forward declared functions (for mutually recursive functions).
• Static scoping (not dynamic).
• Implicit procedure / function calls (no need for empty parentheses).

Tusk doesn't yet support…

• Overloaded functions written in Tusk.
• Generic functions written in Tusk.

Tusk exposes a fair amount of Delphi's Runtime Library, as well as some of our own utility libraries.

For more details, please see the Reference section.