Class Puppet::Parser::AST::CaseOpt
In: lib/puppet/parser/ast/caseopt.rb
Parent: AST::Branch

Each individual option in a case statement.

Methods

default?   each   eachvalue   evaluate  

Attributes

statements  [RW] 
value  [RW] 

Public Instance methods

default?()

Are we the default option?

[Source]

    # File lib/puppet/parser/ast/caseopt.rb, line 17
17:         def default?
18:             # Cache the @default value.
19:             if defined? @default
20:                 return @default
21:             end
22: 
23:             if @value.is_a?(AST::ASTArray)
24:                 @value.each { |subval|
25:                     if subval.is_a?(AST::Default)
26:                         @default = true
27:                         break
28:                     end
29:                 }
30:             else
31:                 if @value.is_a?(AST::Default)
32:                     @default = true
33:                 end
34:             end
35: 
36:             unless defined? @default
37:                 @default = false
38:             end
39: 
40:             return @default
41:         end
each() {|child| ...}

CaseOpt is a bit special — we just want the value first, so that CaseStatement can compare, and then it will selectively decide whether to fully evaluate this option

[Source]

    # File lib/puppet/parser/ast/caseopt.rb, line 12
12:         def each
13:             [@value,@statements].each { |child| yield child }
14:         end
eachvalue(scope) {|subval.safeevaluate(scope)| ...}

You can specify a list of values; return each in turn.

[Source]

    # File lib/puppet/parser/ast/caseopt.rb, line 44
44:         def eachvalue(scope)
45:             if @value.is_a?(AST::ASTArray)
46:                 @value.each { |subval|
47:                     yield subval.safeevaluate(scope)
48:                 }
49:             else
50:                 yield @value.safeevaluate(scope)
51:             end
52:         end
evaluate(scope)

Evaluate the actual statements; this only gets called if our option matched.

[Source]

    # File lib/puppet/parser/ast/caseopt.rb, line 56
56:         def evaluate(scope)
57:             return @statements.safeevaluate(scope)
58:         end

[Validate]