class Crystal::If
inherits Crystal::ASTNode

An if expression.

'if' cond
  then
[
'else'
  else
]
'end'

An if elsif end is parsed as an If whose else is another If.

Class methods

.new(cond, a_then = nil, a_else = nil, ternary = false)

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Methods

#==(other : self)

Returns true if this reference is the same as other. Invokes same?.

#accept_children(visitor)

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#and=(and)

This is set to true for an If that was created from an && expression.

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#and? : Bool

This is set to true for an If that was created from an && expression.

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#clone_without_location

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#cond : ASTNode

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#cond=(cond : ASTNode)

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#else : ASTNode

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#else=(else : ASTNode)

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#falsey=(falsey)

This is set to true when the compiler is sure that the condition is falsey

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#falsey? : Bool

This is set to true when the compiler is sure that the condition is falsey

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#hash(hasher)

See Object#hash(hasher)

#interpret(method : String, args : Array(ASTNode), named_args : Hash(String, ASTNode)?, block : Crystal::Block?, interpreter : Crystal::MacroInterpreter, name_loc : Location?)

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#or=(or)

This is set to true for an If that was created from an || expression.

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#or? : Bool

This is set to true for an If that was created from an || expression.

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#ternary=(ternary : Bool)

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#ternary? : Bool

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#then : ASTNode

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#then=(then : ASTNode)

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#truthy=(truthy)

This is set to true when the compiler is sure that the condition is truthy

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#truthy? : Bool

This is set to true when the compiler is sure that the condition is truthy

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