Symbol


superclass: Object


A Symbol is a name that is guaranteed to be unique. They can be used to represent

symbolic constant values, Dictionary keys, etc.


Symbols are represented syntactically as literals which are described in [01 Literals] .


Testing


isClassName


Answer whether the symbol is a class name.


isSetter


Answer whether the symbol has a trailing underscore.


Conversion


asString


Convert to a String


asClass


Answer the Class named by the receiver.


asSetter


Return a symbol with a trailing underscore added.


asGetter


Return a symbol with a trailing underscore removed.


Math


Symbols respond to all unary and binary math operations by returning themselves.

The result of any math operation between a Number or other math object and a Symbol

is to return the Symbol. This allows operations on lists of notes which contain 'rest's

to preserve the rests.


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