SCons :: Subst :: SpecialAttrWrapper :: Class SpecialAttrWrapper

Class SpecialAttrWrapper

object --+
         |
        SpecialAttrWrapper

This is a wrapper for what we call a 'Node special attribute.' This is any of the attributes of a Node that we can reference from Environment variable substitution, such as $TARGET.abspath or $SOURCES[1].filebase. We implement the same methods as Literal so we can handle special characters, plus a for_signature method, such that we can return some canonical string during signature calculation to avoid unnecessary rebuilds.

Instance Methods

[hide private]

__init__(self, lstr, for_signature=None)
The for_signature parameter, if supplied, will be the canonical string we return from for_signature(). Else we will simply return lstr.

source code

__str__(self)
str(x)

source code

escape(self, escape_func)

source code

for_signature(self)

source code

is_literal(self)

source code

Inherited from object: __delattr__, __format__, __getattribute__, __hash__, __new__, __reduce__, __reduce_ex__, __repr__, __setattr__, __sizeof__, __subclasshook__

Properties

[hide private]

Inherited from object: __class__

Method Details

[hide private]

init(self, lstr, for_signature=None)
(Constructor)

source code

The for_signature parameter, if supplied, will be the canonical string we return from for_signature(). Else we will simply return lstr.

Overrides: object.__init__

str(self)
(Informal representation operator)

source code

str(x)

Overrides: object.__str__: (inherited documentation)

Class SpecialAttrWrapper

__init__(self, lstr, for_signature=None) (Constructor)

__str__(self) (Informal representation operator)

init(self, lstr, for_signature=None)
(Constructor)

str(self)
(Informal representation operator)