1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
|
class Puppet::Parser::AST
# Evaluate the stored parse tree for a given component. This will
# receive the arguments passed to the component and also the type and
# name of the component.
class Component < AST::Branch
class << self
attr_accessor :name
end
# The class name
@name = :component
attr_accessor :type, :args, :code, :scope, :keyword
#def evaluate(scope,hash,objtype,objname)
def evaluate(hash)
origscope = hash[:scope]
objtype = hash[:type]
objname = hash[:name]
arguments = hash[:arguments] || {}
scope = origscope.newscope(
:type => @type,
:name => objname,
:keyword => self.keyword
)
newcontext = hash[:newcontext]
unless self.is_a? AST::HostClass and ! newcontext
#scope.warning "Setting context to %s" % self.object_id
scope.context = self.object_id
end
@scope = scope
# Additionally, add a tag for whatever kind of class
# we are
scope.tag(@type)
unless objname.nil?
#Puppet.info "tagging with %s" % objname.inspect
scope.tag(objname)
end
#scope.base = self.class.name
# define all of the arguments in our local scope
if self.args
# Verify that all required arguments are either present or
# have been provided with defaults.
# FIXME This should probably also require each parent
# class's arguments...
self.args.each { |arg, default|
unless arguments.include?(arg)
if defined? default and ! default.nil?
arguments[arg] = default
#Puppet.debug "Got default %s for %s in %s" %
# [default.inspect, arg.inspect, objname.inspect]
else
error = Puppet::ParseError.new(
"Must pass %s to %s of type %s" %
[arg.inspect,objname,@type]
)
error.line = self.line
error.file = self.file
raise error
end
end
}
end
# Set each of the provided arguments as variables in the
# component's scope.
arguments["name"] = objname
arguments.each { |arg,value|
begin
scope.setvar(arg,arguments[arg])
rescue Puppet::ParseError => except
except.line = self.line
except.file = self.file
raise except
rescue Puppet::ParseError => except
except.line = self.line
except.file = self.file
raise except
rescue => except
error = Puppet::ParseError.new(except.message)
error.line = self.line
error.file = self.file
error.backtrace = except.backtrace
raise error
end
}
# Now just evaluate the code with our new bindings.
self.code.safeevaluate(:scope => scope)
# If we're being evaluated as a parent class, we want to return the
# scope, so it can be overridden and such, but if not, we want to
# return a TransBucket of our objects.
if hash.include?(:asparent)
return scope
else
return scope.to_trans
end
end
# Check whether a given argument is valid. Searches up through
# any parent classes that might exist.
def validarg?(param)
found = false
unless @args.is_a? Array
@args = [@args]
end
found = @args.detect { |arg|
if arg.is_a? Array
arg[0] == param
else
arg == param
end
}
if found
# It's a valid arg for us
return true
elsif defined? @parentclass and @parentclass
# Else, check any existing parent
parent = @scope.lookuptype(@parentclass)
if parent and parent != []
return parent.validarg?(param)
else
raise Puppet::Error, "Could not find parent class %s" %
@parentclass
end
else
# Or just return false
return false
end
end
end
end
# $Id$
|
