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require 'rdoc/code_object'
##
# A constant
class RDoc::Constant < RDoc::CodeObject
##
# If this constant is an alias for a module or class,
# this is the RDoc::ClassModule it is an alias for.
# +nil+ otherwise.
attr_accessor :is_alias_for
##
# The constant's name
attr_accessor :name
##
# The constant's value
attr_accessor :value
##
# Creates a new constant with +name+, +value+ and +comment+
def initialize(name, value, comment)
super()
@name = name
@value = value
@is_alias_for = nil
self.comment = comment
end
##
# Constants are ordered by name
def <=> other
return unless self.class === other
[parent_name, name] <=> [other.parent_name, other.name]
end
##
# Constants are equal when their #parent and #name is the same
def == other
self.class == other.class and
@parent == other.parent and
@name == other.name
end
##
# A constant is documented if it has a comment, or is an alias
# for a documented class or module.
def documented?
super or is_alias_for && is_alias_for.documented?
end
def inspect # :nodoc:
"#<%s:0x%x %s::%s>" % [
self.class, object_id,
parent_name, @name,
]
end
##
# Path to this constant
def path
"#{@parent.path}##{@name}"
end
def to_s # :nodoc:
parent_name = parent ? parent.full_name : '(unknown)'
if is_alias_for
"constant #{parent_name}::#@name -> #{is_alias_for}"
else
"constant #{parent_name}::#@name"
end
end
end
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