Unit Declarations Syntax

[iamcarbon]

Finalize unit declaration syntax.

Goals

• Built-in support for SI units
• Ability to define postfix symbol apart of declaration
• Ability to define a relationships between units of the same type & infer conversions between all variations

Unit Declarations

Angle protocal : Number { }

rad  unit : Angle @name("Radian") @SI = 1;
deg  unit : Angle @name("Degree")     = (π/180) rad;
turn unit : Angle @name("Turn")       = 360 deg;               
grad unit : Angle @name("Gradian")    = (1/400) turn;
arcs unit : Angle @name("Arcsecond")  = (1/3600) deg;            
arcm unit : Angle @name("Arcminute")  = (1/60) deg;

Usage

3 rad
5 deg to rad
rotate(3 rad)

[iamcarbon]

Move all unit definitions & relations of core into D modules.

Finalize locations of SI Units.

Namespace              Types
Thermodynamics     Temperature
Time                          Time
Physics                      Length, Mass, Pressure