AST
NAME
Config::BINDish::AST - the standard Config::BINDish AST tree representation
DESCRIPTION
As a module Config::BINDish::AST defines all standard AST node classes used by
Config::BINDish::Actions
to build the resulting representation of the parsed configuration.
As a class Config::BINDish::AST is the base class for all other AST node classes.
ATTRIBUTES
Config::BINDish::AST::Parent $.parent
Points to the parent node. Will stay undefined for the TOP node.
METHODS
set-parent(Config::BINDish::AST::Parent:D $parent)
Sets $.parent attribute.
ast-name()
Returns current node name, based on the node class name. If the name starts with Config::BINDish::AST:: then this part is stripped off. Otherwise the class name is considered to be the name.
dump(Int:D :$level = 0)
Dumps current node' string representation which consists of ast-name and gist and would be indented by $level
white spaces.
register-type(Str:D $ast-name, Mu \ast-type)
Method registers an ast-type class under $ast-name. new-ast method (see below) can later create a node instance
based on its registered name.
new-ast(Str:D $node-type, |profile -- Config::BINDish::AST:D)>
Creates a new instance of ast node based on its name. The name can be either a registered AST node name, see
register-type method above; or a short name under Config::BINDish::AST:: namespace. If no associated AST type
object is found then a failure wrapped around
Config::BINDish::X::AST::DoesnExists
is returned.
For example, with the following statement:
Config::BINDish::AST.register-type("MyAppNode", MyApp::Config::AST::Node);
it is then possible to:
Config::BINDish::AST.new-ast("MyAppNode", :foo(42), :bar("The Answer")); # An instance of My::App::Config::AST::Node
For one of the standard AST nodes one can:
Config::BINDish::AST.new-ast('Block', :name(...), :class(...), ...); # An instance of Config::BINDish::AST::Block
<top-node(--> Config::BINDish::AST)>
Returns the topmost node, or, in other words, the root of the AST tree.
AST NODE CLASSES AND ROLES
Roles
Classes
SEE ALSO
Config::BINDish, Config::BINDish::Aactions
AUTHOR
Vadim Belman <[email protected]>