Sha256: a4360f5f62c7e7f195650b32cd877547604845c43b89ba517ffaba9ea2bf84e2
Contents?: true
Size: 1.66 KB
Versions: 6
Compression:
Stored size: 1.66 KB
Contents
class Puppet::Parser::AST
# The parent class of all AST objects that contain other AST objects.
# Everything but the really simple objects descend from this. It is
# important to note that Branch objects contain other AST objects only --
# if you want to contain values, use a descendent of the AST::Leaf class.
class Branch < AST
include Enumerable
attr_accessor :pin, :children
# Yield each contained AST node in turn. Used mostly by 'evaluate'.
# This definition means that I don't have to override 'evaluate'
# every time, but each child of Branch will likely need to override
# this method.
def each
@children.each { |child|
yield child
}
end
# Initialize our object. Largely relies on the method from the base
# class, but also does some verification.
def initialize(arghash)
super(arghash)
# Create the hash, if it was not set at initialization time.
unless defined? @children
@children = []
end
# Verify that we only got valid AST nodes.
@children.each { |child|
unless child.is_a?(AST)
raise Puppet::DevError,
"child %s is a %s instead of ast" % [child, child.class]
end
}
end
# Pretty-print the parse tree.
def tree(indent = 0)
return ((@@indline * indent) +
self.typewrap(self.pin)) + "\n" + self.collect { |child|
child.tree(indent + 1)
}.join("\n")
end
end
end
Version data entries
6 entries across 6 versions & 1 rubygems