Class: Loxxy::Ast::LoxVarStmt

Inherits:

LoxCompoundExpr

• Object
• LoxNode
• LoxCompoundExpr
• Loxxy::Ast::LoxVarStmt

Defined in:

lib/loxxy/ast/lox_var_stmt.rb

Overview

This AST node represents a variable declaration

Instance Attribute Summary

• #name ⇒ String readonly

  Variable name.

Attributes inherited from LoxCompoundExpr

#subnodes

Attributes inherited from LoxNode

#position

Instance Method Summary

• #accept(visitor) ⇒ Object

  Part of the 'visitee' role in Visitor design pattern.

• #initialize(aPosition, aName, aValue) ⇒ LoxVarStmt constructor

  A new instance of LoxVarStmt.

Methods inherited from LoxNode

#done!

Constructor Details

#initialize(aPosition, aName, aValue) ⇒ LoxVarStmt

Returns a new instance of LoxVarStmt.

Parameters:

• aPosition (Rley::Lexical::Position) —

  Position of the entry in the input stream.

• aName (String) —

  name of the variable

• aValue (Loxxy::Ast::LoxNode, NilClass) —

  initial value for the variable

# File 'lib/loxxy/ast/lox_var_stmt.rb', line 15

def initialize(aPosition, aName, aValue)
  initial_value = aValue || Datatype::Nil.instance
  super(aPosition, [initial_value])
  @name = aName
end

Instance Attribute Details

#name ⇒ String (readonly)

Returns variable name.

Returns:

• (String) —

  variable name

# File 'lib/loxxy/ast/lox_var_stmt.rb', line 10

def name
  @name
end

Instance Method Details

#accept(visitor) ⇒ Object

Part of the 'visitee' role in Visitor design pattern.

Parameters:

• visitor (Ast::ASTVisitor) —

  the visitor

# File 'lib/loxxy/ast/lox_var_stmt.rb', line 23

def accept(visitor)
  visitor.visit_var_stmt(self)
end