__revision__ = "__FILE__ __REVISION__ __DATE__ __DEVELOPER__"
-
+import SCons.compat
import copy
import string
from SCons.Debug import logInstanceCreation
import SCons.Executor
+import SCons.Memoize
import SCons.SConsign
import SCons.Util
if SCons.Memoize.use_memoizer:
__metaclass__ = SCons.Memoize.Memoized_Metaclass
+ memoizer_counters = []
+
class Attrs:
pass
self.state = no_state
self.precious = None
self.noclean = 0
+ self.nocache = 0
self.always_build = None
self.found_includes = {}
self.includes = None
self.attributes = self.Attrs() # Generic place to stick information about the Node.
self.side_effect = 0 # true iff this node is a side effect
self.side_effects = [] # the side effects of building this target
- self.pre_actions = []
- self.post_actions = []
self.linked = 0 # is this node linked to the build directory?
+ self.clear_memoized_values()
+
# Let the interface in which the build engine is embedded
# annotate this Node with its own info (like a description of
# what line in what file created the node, for example).
Annotate(self)
- def disambiguate(self):
+ def disambiguate(self, must_exist=None):
return self
def get_suffix(self):
def get_build_env(self):
"""Fetch the appropriate Environment to build this node.
- __cacheable__"""
+ """
return self.get_executor().get_build_env()
def get_build_scanner_path(self, scanner):
self.waiting_s_e[node] = 1
def add_to_waiting_parents(self, node):
- self.waiting_parents[node] = 1
+ """
+ Returns the number of nodes added to our waiting parents list:
+ 1 if we add a unique waiting parent, 0 if not. (Note that the
+ returned values are intended to be used to increment a reference
+ count, so don't think you can "clean up" this function by using
+ True and False instead...)
+ """
+ wp = self.waiting_parents
+ if wp.has_key(node):
+ result = 0
+ else:
+ result = 1
+ wp[node] = 1
+ return result
def call_for_all_waiting_parents(self, func):
func(self)
"""Completely clear a Node of all its cached state (so that it
can be re-evaluated by interfaces that do continuous integration
builds).
- __reset_cache__
"""
+ self.clear_memoized_values()
self.executor_cleanup()
self.del_binfo()
try:
self.found_includes = {}
self.implicit = None
+ def clear_memoized_values(self):
+ self._memo = {}
+
def visited(self):
"""Called just after this node has been visited
without requiring a build.."""
pass
def builder_set(self, builder):
- "__cache_reset__"
self.builder = builder
def has_builder(self):
signatures when they are used as source files to other derived files. For
example: source with source builders are not derived in this sense,
and hence should not return true.
- __cacheable__
"""
return self.has_builder() or self.side_effect
# Here's where we implement --implicit-cache.
if implicit_cache and not implicit_deps_changed:
implicit = self.get_stored_implicit()
- if implicit:
+ if implicit is not None:
factory = build_env.get_factory(self.builder.source_factory)
nodes = []
for i in implicit:
env = self.env or SCons.Defaults.DefaultEnvironment()
return env.get_calculator()
+ memoizer_counters.append(SCons.Memoize.CountValue('calc_signature'))
+
def calc_signature(self, calc=None):
"""
Select and calculate the appropriate build signature for a node.
- __cacheable__
self - the node
calc - the signature calculation module
returns - the signature
"""
+ try:
+ return self._memo['calc_signature']
+ except KeyError:
+ pass
if self.is_derived():
import SCons.Defaults
env = self.env or SCons.Defaults.DefaultEnvironment()
if env.use_build_signature():
- return self.get_bsig(calc)
+ result = self.get_bsig(calc)
+ else:
+ result = self.get_csig(calc)
elif not self.rexists():
- return None
- return self.get_csig(calc)
+ result = None
+ else:
+ result = self.get_csig(calc)
+ self._memo['calc_signature'] = result
+ return result
def new_ninfo(self):
return self.NodeInfo(self)
node's children's signatures. We expect that they're
already built and updated by someone else, if that's
what's wanted.
- __cacheable__
"""
if calc is None:
def calc_signature(node, calc=calc):
return node.calc_signature(calc)
- sources = executor.process_sources(None, self.ignore)
+ sources = executor.get_unignored_sources(self.ignore)
sourcesigs = executor.process_sources(calc_signature, self.ignore)
depends = self.depends
# output in Util.py can use it as an index.
self.noclean = noclean and 1 or 0
+ def set_nocache(self, nocache = 1):
+ """Set the Node's nocache value."""
+ # Make sure nocache is an integer so the --debug=stree
+ # output in Util.py can use it as an index.
+ self.nocache = nocache and 1 or 0
+
def set_always_build(self, always_build = 1):
"""Set the Node's always_build value."""
self.always_build = always_build
return self.exists()
def missing(self):
- """__cacheable__"""
return not self.is_derived() and \
not self.is_pseudo_derived() and \
not self.linked and \
self.wkids.append(wkid)
def _children_reset(self):
- "__cache_reset__"
+ self.clear_memoized_values()
# We need to let the Executor clear out any calculated
# bsig info that it's cached so we can re-calculate it.
self.executor_cleanup()
else:
return self.sources + self.depends + self.implicit
+ memoizer_counters.append(SCons.Memoize.CountValue('_children_get'))
+
def _children_get(self):
- "__cacheable__"
+ try:
+ return self._memo['children_get']
+ except KeyError:
+ pass
children = self._all_children_get()
if self.ignore:
children = filter(self.do_not_ignore, children)
+ self._memo['children_get'] = children
return children
def all_children(self, scan=1):
if not self.exists():
return "building `%s' because it doesn't exist\n" % self
+ if self.always_build:
+ return "rebuilding `%s' because AlwaysBuild() is specified\n" % self
+
old = self.get_stored_info()
if old is None:
return None
old.prepare_dependencies()
- def dictify(result, kids, sigs):
- for k, s in zip(kids, sigs):
- result[k] = s
-
try:
- osig = {}
- dictify(osig, old.bsources, old.bsourcesigs)
- dictify(osig, old.bdepends, old.bdependsigs)
- dictify(osig, old.bimplicit, old.bimplicitsigs)
+ old_bkids = old.bsources + old.bdepends + old.bimplicit
+ old_bkidsigs = old.bsourcesigs + old.bdependsigs + old.bimplicitsigs
except AttributeError:
return "Cannot explain why `%s' is being rebuilt: No previous build information found\n" % self
new = self.get_binfo()
- nsig = {}
- dictify(nsig, new.bsources, new.bsourcesigs)
- dictify(nsig, new.bdepends, new.bdependsigs)
- dictify(nsig, new.bimplicit, new.bimplicitsigs)
+ new_bkids = new.bsources + new.bdepends + new.bimplicit
+ new_bkidsigs = new.bsourcesigs + new.bdependsigs + new.bimplicitsigs
- old_bkids = old.bsources + old.bdepends + old.bimplicit
- new_bkids = new.bsources + new.bdepends + new.bimplicit
+ osig = dict(zip(old_bkids, old_bkidsigs))
+ nsig = dict(zip(new_bkids, new_bkidsigs))
# The sources and dependencies we'll want to report are all stored
# as relative paths to this target's directory, but we want to
del l
del ul
-if SCons.Memoize.use_old_memoization():
- _Base = Node
- class Node(SCons.Memoize.Memoizer, _Base):
- def __init__(self, *args, **kw):
- apply(_Base.__init__, (self,)+args, kw)
- SCons.Memoize.Memoizer.__init__(self)
-
-
def get_children(node, parent): return node.children()
def ignore_cycle(node, stack): pass
def do_nothing(node, parent): pass
projects / scons.git / blobdiff