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require 'puppet/parser/ast/branch'
# Any normal puppet object declaration. Can result in a class or a
# component, in addition to builtin types.
class Puppet::Parser::AST
class ResourceDef < AST::Branch
attr_accessor :title, :type, :exported, :virtual
attr_reader :params
# probably not used at all
def []=(index,obj)
@params[index] = obj
end
# probably not used at all
def [](index)
return @params[index]
end
# Iterate across all of our children.
def each
[@type,@title,@params].flatten.each { |param|
#Puppet.debug("yielding param %s" % param)
yield param
}
end
# Does not actually return an object; instead sets an object
# in the current scope.
def evaluate(hash)
scope = hash[:scope]
@scope = scope
hash = {}
# Get our type and name.
objtype = @type
# Disable definition inheritance, for now. 8/27/06, luke
#if objtype == "super"
# objtype = supertype()
# @subtype = true
#else
@subtype = false
#end
# Evaluate all of the specified params.
paramobjects = @params.collect { |param|
param.safeevaluate(:scope => scope)
}
# Now collect info from our parent.
parentname = nil
if @subtype
parentname = supersetup(hash)
end
objtitles = nil
# Determine our name if we have one.
if self.title
objtitles = @title.safeevaluate(:scope => scope)
# it's easier to always use an array, even for only one name
unless objtitles.is_a?(Array)
objtitles = [objtitles]
end
else
if parentname
objtitles = [parentname]
else
# See if they specified the name as a parameter instead of
# as a normal name (i.e., before the colon).
unless object # we're a builtin
if objclass = Puppet::Type.type(objtype)
namevar = objclass.namevar
tmp = hash["name"] || hash[namevar.to_s]
if tmp
objtitles = [tmp]
end
else
# This isn't grammatically legal.
raise Puppet::ParseError, "Got a resource with no title"
end
end
end
end
# This is where our implicit iteration takes place; if someone
# passed an array as the name, then we act just like the called us
# many times.
objtitles.collect { |objtitle|
exceptwrap :type => Puppet::ParseError do
exp = self.exported || scope.exported
# We want virtual to be true if exported is true. We can't
# just set :virtual => self.virtual in the initialization,
# because sometimes the :virtual attribute is set *after*
# :exported, in which case it clobbers :exported if :exported
# is true. Argh, this was a very tough one to track down.
virt = self.virtual || exported
obj = Puppet::Parser::Resource.new(
:type => objtype,
:title => objtitle,
:params => paramobjects,
:file => @file,
:line => @line,
:exported => exp,
:virtual => virt,
:source => scope.source,
:scope => scope
)
# And then store the resource in the scope.
# XXX At some point, we need to switch all of this to return
# objects instead of storing them like this.
scope.setresource(obj)
obj
end
}.reject { |obj| obj.nil? }
end
# Create our ResourceDef. Handles type checking for us.
def initialize(hash)
@checked = false
super
#self.typecheck(@type.value)
end
# Set the parameters for our object.
def params=(params)
if params.is_a?(AST::ASTArray)
@params = params
else
@params = AST::ASTArray.new(
:line => params.line,
:file => params.file,
:children => [params]
)
end
end
def supercomp
unless defined? @supercomp
if @scope and comp = @scope.inside
@supercomp = comp
else
error = Puppet::ParseError.new(
"'super' is only valid within definitions"
)
error.line = self.line
error.file = self.file
raise error
end
end
@supercomp
end
# Take all of the arguments of our parent and add them into our own,
# without overriding anything.
def supersetup(hash)
comp = supercomp()
# Now check each of the arguments from the parent.
comp.arguments.each do |name, value|
unless hash.has_key? name
hash[name] = value
end
end
# Return the parent name, so it can be used if appropriate.
return comp.name
end
# Retrieve our supertype.
def supertype
unless defined? @supertype
if parent = supercomp.parentclass
@supertype = parent
else
error = Puppet::ParseError.new(
"%s does not have a parent class" % comp.type
)
error.line = self.line
error.file = self.file
raise error
end
end
@supertype
end
# Print this object out.
def tree(indent = 0)
return [
@type.tree(indent + 1),
@title.tree(indent + 1),
((@@indline * indent) + self.typewrap(self.pin)),
@params.collect { |param|
begin
param.tree(indent + 1)
rescue NoMethodError => detail
Puppet.err @params.inspect
error = Puppet::DevError.new(
"failed to tree a %s" % self.class
)
error.set_backtrace detail.backtrace
raise error
end
}.join("\n")
].join("\n")
end
def to_s
return "%s => { %s }" % [@title,
@params.collect { |param|
param.to_s
}.join("\n")
]
end
end
end
# $Id$
|
