class Crystal::MetaVar

• Crystal::MetaVar
• Crystal::ASTNode
• Reference
• Object

Included Modules

• Crystal::SpecialVar

Defined in:

Constructors

• .new(name : String, type : Type | Nil = nil)

Instance Method Summary

• #==(other : self)

  Returns true if this reference is the same as other.

• #assigned_to=(assigned_to : Bool)

  Is this metavar assigned a value?

• #assigned_to? : Bool

  Is this metavar assigned a value?

• #belongs_to?(context)

  True if this variable belongs to the given context.

• #clone_without_location
• #closure_in?(context)

  True if this variable belongs to the given context but must be allocated in a closure.

• #closured? : Bool

  A variable is closured if it's used in a ProcLiteral context where it wasn't created.

• #context : ASTNode | NonGenericModuleType | Nil

  This is the context of the variable: who allocates it.

• #context=(context : ASTNode | NonGenericModuleType | Nil)

  This is the context of the variable: who allocates it.

• #freeze_type : Type | Nil
• #freeze_type=(freeze_type : Type | Nil)
• #inspect(io : IO) : Nil

  Appends a String representation of this object which includes its class name, its object address and the values of all instance variables.

• #local_vars

  Local variables associated with this meta variable.

• #local_vars=(local_vars : Nil | Array(Crystal::ASTNode))

  Local variables associated with this meta variable.

• #local_vars? : Array(Crystal::ASTNode)?

  Is this metavar associated with any local vars?

• #mark_as_closured

  Marks this variable as closured.

• #mutably_closured=(mutably_closured : Bool)

  Is this metavar closured in a mutable way? This means it's closured and it got a value assigned to it more than once.

• #mutably_closured? : Bool

  Is this metavar closured in a mutable way? This means it's closured and it got a value assigned to it more than once.

• #name : String
• #name=(name : String)
• #nil_if_read=(nil_if_read : Bool)

  True if we need to mark this variable as nilable if this variable is read.

• #nil_if_read? : Bool

  True if we need to mark this variable as nilable if this variable is read.

• #pretty_print(pp)

Constructor Detail

Instance Method Detail

class Person
  def initialize(@name : String, @age : Int32)
  end
end

Person.new("John", 32).inspect # => #<Person:0x10fd31f20 @name="John", @age=32>