Kind: DefaultBehavior

contains behavior related to boolean behavior

Mimics

none

Inactive cells

inspect
kind
notice

Active cells

!(arg)
&&(...)
-(obj)
?&(...)
?|(...)
and(...)
false?()
nand(...)
nil?()
nor(...)
not()
or(...)
true?()
xor(...)
||(...)

Specs

Inactive cells (details)

inspect

"DefaultBehavior Boolean"

kind

"DefaultBehavior Boolean"

notice

"DefaultBehavior Boolean"

Active cells (details)

!(arg)

returns true if the argument is false, and false if it's true

[ show source ]

method(arg, 
  arg not)

&&(...)

Evaluates the argument and returns the result

[ show source ]

macro(
  argCount = call arguments length 
  if(
    argCount ==(
      1), 
    
    then = call argAt(
        0) 
    
    then, 
    error!(Condition Error Invocation NoMatch, message: call message, context: call currentContext)) 
  )

-(obj)

returns the negation of the argument

[ show source ]

method(obj, 
  obj negation)

?&(...)

Evaluates the argument and returns the result

[ show source ]

macro(
  argCount = call arguments length 
  cond(
    argCount ==(
      1), 
    
    then = call argAt(
        0) 
    
    then, 
    error!(Condition Error Invocation NoMatch, message: call message, context: call currentContext)) 
  )

?|(...)

Does not evaluate argument and returns self

[ show source ]

macro(
  argCount = call arguments length 
  cond(
    argCount ==(
      1), 
    
    then = call arguments [](
        0) 
    
    @, 
    error!(Condition Error Invocation NoMatch, message: call message, context: call currentContext)) 
  )

and(...)

Evaluates the argument and returns the result

[ show source ]

macro(
  argCount = call arguments length 
  cond(
    argCount ==(
      1), 
    
    then = call argAt(
        0) 
    
    then, 
    error!(Condition Error Invocation NoMatch, message: call message, context: call currentContext)) 
  )

false?()

returns false.

[ show source ]

method(
  false)

nand(...)

Evaluates its argument and returns the inverse of it

[ show source ]

macro(
  argCount = call arguments length 
  cond(
    argCount ==(
      1), 
    
    other = call argAt(
        0) 
    
    if(other, false, true), 
    error!(Condition Error Invocation NoMatch, message: call message, context: call currentContext)) 
  )

nil?()

returns false.

[ show source ]

method(
  false)

nor(...)

Does not evaluate its argument and returns false

[ show source ]

macro(
  argCount = call arguments length 
  cond(
    argCount ==(
      1), 
    
    other = call arguments [](
        0) 
    
    false, 
    error!(Condition Error Invocation NoMatch, message: call message, context: call currentContext)) 
  )

not()

Does not evaluate arguments and returns nil

[ show source ]

method(
  nil)

or(...)

Does not evaluate argument and returns self

[ show source ]

macro(
  argCount = call arguments length 
  cond(
    argCount ==(
      1), 
    
    then = call arguments [](
        0) 
    
    @, 
    error!(Condition Error Invocation NoMatch, message: call message, context: call currentContext)) 
  )

true?()

returns true

[ show source ]

method(
  true)

xor(...)

Evaluates the argument and returns the inverse of the argument

[ show source ]

macro(
  argCount = call arguments length 
  cond(
    argCount ==(
      1), 
    
    then = call argAt(
        0) 
    
    if(then, false, true), 
    error!(Condition Error Invocation NoMatch, message: call message, context: call currentContext)) 
  )

||(...)

Does not evaluate argument and returns self

[ show source ]

macro(
  argCount = call arguments length 
  if(
    argCount ==(
      1), 
    
    then = call arguments [](
        0) 
    
    @, 
    error!(Condition Error Invocation NoMatch, message: call message, context: call currentContext)) 
  )