SCons.Node.Alias.Alias

Package SCons :: Package Node :: Module Alias :: Class Alias |
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# Class Alias

source code

    Node --+
           |
          Alias

Nested Classes | [hide private]
| NodeInfo The generic base class for signature information for a Node.
| BuildInfo The generic base class for build information for a Node.
Inherited from `Node`: `Attrs`

Instance Methods | [hide private]
__init__(self, name) | source code
__str__(self) | source code
make_ready(self) Get a Node ready for evaluation. | source code
really_build(self, **kw) Actually build the node. | source code
is_up_to_date(self) Alternate check for whether the Node is current: If all of our children were up-to-date, then this Node was up-to-date, too. | source code
is_under(self, dir) | source code
get_contents(self) The contents of an alias is the concatenation of the content signatures of all its sources. | source code
sconsign(self) An Alias is not recorded in .sconsign files | source code
changed_since_last_build(self, target, prev_ni) Must be overridden in a specific subclass to return True if this Node (a dependency) has changed since the last time it was used to build the specified target. | source code
build(self) A "builder" for aliases. | source code
convert(self) | source code
get_csig(self) Generate a node's content signature, the digested signature of its content. | source code
Inherited from `Node`: `Decider`, `add_dependency`, `add_ignore`, `add_prerequisite`, `add_source`, `add_to_implicit`, `add_to_waiting_parents`, `add_to_waiting_s_e`, `add_wkid`, `all_children`, `alter_targets`, `builder_set`, `built`, `call_for_all_waiting_parents`, `changed`, `children`, `children_are_up_to_date`, `clear`, `clear_memoized_values`, `del_binfo`, `disambiguate`, `do_not_ignore`, `do_not_store_info`, `env_set`, `executor_cleanup`, `exists`, `explain`, `for_signature`, `get_abspath`, `get_binfo`, `get_build_env`, `get_build_scanner_path`, `get_builder`, `get_cachedir_csig`, `get_env`, `get_env_scanner`, `get_executor`, `get_found_includes`, `get_implicit_deps`, `get_ninfo`, `get_source_scanner`, `get_state`, `get_stored_implicit`, `get_stored_info`, `get_string`, `get_subst_proxy`, `get_suffix`, `get_target_scanner`, `has_builder`, `has_explicit_builder`, `is_derived`, `is_literal`, `missing`, `multiple_side_effect_has_builder`, `new_binfo`, `new_ninfo`, `postprocess`, `prepare`, `remove`, `render_include_tree`, `reset_executor`, `retrieve_from_cache`, `rexists`, `scan`, `scanner_key`, `select_scanner`, `set_always_build`, `set_executor`, `set_explicit`, `set_nocache`, `set_noclean`, `set_precious`, `set_state`, `state_has_changed`, `store_info`, `visited` Inherited from `Node` (private): `_add_child`, `_all_children_get`, `_children_get`, `_children_reset`

Class Variables | [hide private]
Inherited from `Node`: `__metaclass__`, `memoizer_counters`

Method Details | [hide private]

### __init__(self, name) (Constructor) | source code
Overrides: Node.__init__

### make_ready(self) | source code
Get a Node ready for evaluation. This is called before the Taskmaster decides if the Node is up-to-date or not. Overriding this method allows for a Node subclass to be disambiguated if necessary, or for an implicit source builder to be attached. Overrides: Node.make_ready (inherited documentation)

### really_build(self, **kw) | source code
Actually build the node. This is called by the Taskmaster after it's decided that the Node is out-of-date and must be rebuilt, and after the prepare() method has gotten everything, uh, prepared. This method is called from multiple threads in a parallel build, so only do thread safe stuff here. Do thread unsafe stuff in built().

### is_up_to_date(self) | source code
Alternate check for whether the Node is current: If all of our children were up-to-date, then this Node was up-to-date, too. The SCons.Node.Alias and SCons.Node.Python.Value subclasses rebind their current() method to this method. Overrides: Node.is_up_to_date

### changed_since_last_build(self, target, prev_ni) | source code
Must be overridden in a specific subclass to return True if this Node (a dependency) has changed since the last time it was used to build the specified target. prev_ni is this Node's state (for example, its file timestamp, length, maybe content signature) as of the last time the target was built. Note that this method is called through the dependency, not the target, because a dependency Node must be able to use its own logic to decide if it changed. For example, File Nodes need to obey if we're configured to use timestamps, but Python Value Nodes never use timestamps and always use the content. If this method were called through the target, then each Node's implementation of this method would have to have more complicated logic to handle all the different Node types on which it might depend. Overrides: Node.changed_since_last_build (inherited documentation)

### build(self) | source code
A "builder" for aliases. Overrides: Node.build

### get_csig(self) | source code
Generate a node's content signature, the digested signature of its content. node - the node cache - alternate node to use for the signature cache returns - the content signature Overrides: Node.get_csig