def resolve_reference(ref, rel):
"""Looks up an interrogate symbol to its canonical name. The second
argument is the fully qualified name it should be seen relative to, which
may be a module name, or a module name followed by an object name.
If found, returns a 2-tuple (type, fqname), else None."""
# Find out which module we should be looking in.
modname = None
relpath = None
rel_parts = rel.split('.')
for i in range(len(rel_parts), 0, -1):
try_modname = '.'.join(rel_parts[:i])
if idb.has_module(try_modname):
modname = try_modname
relpath = rel_parts[i:]
break
if not modname:
return None
refpath = ref.replace('::', '.').split('.')
# Say `rel` is "panda3d.core.NodePath.node",
# and `ref` is "PandaNode.final", then we will try these in this order:
# - panda3d.core::NodePath.node.PandaNode.final
# - panda3d.core::NodePath.PandaNode.final
# - panda3d.core::PandaNode.final
for i in range(len(relpath), -1, -1):
search = relpath[:i] + refpath
ifunc = idb.lookup_function(modname, search)
if ifunc:
# Grab the mangled function name.
func_name = idb.get_function_name(ifunc, mangle=True)
return ('meth', '.'.join(relpath[:i] + refpath[:-1] + [func_name]))
itype = idb.lookup_type(modname, search)
if itype:
# Grab the original type name.
type_name = idb.get_type_name(itype, mangle=False, scoped=True)
return ('class', type_name)
def on_missing_reference(app, env, node, contnode):
# Resolver for interrogate classes that supports either snake case or camel
# case naming. Depending on the variation that is active, it will link to
# either the Python or C++ reference as appropriate.
target = node['reftarget']
# Figure out which part is the module and which part is the class.
prefix = ''
module = 'panda3d.core'
if target.startswith('panda3d.'):
parts = target.split('.', 2)
if len(parts) == 2:
# It's trying to resolve a reference to a module; we can't help
# with that.
return
module = '.'.join(parts[:2])
prefix = module + '.'
target = '.'.join(parts[2:])
else:
# Something like .core.NodePath, perhaps?
modpart = target.split('.', 1)[0]
if idb.has_module('panda3d.' + modpart):
module = 'panda3d.' + modpart
prefix = modpart + '.'
target = target.split('.', 1)[1]
variation = getattr(env.app.builder, 'current_variation', None)
if variation and variation[0] == 'cpp':
domain = env.domains['cpp']
else:
domain = env.domains['py']
resolved = target and resolve_reference(target, module, domain=domain.name)
typ = node['reftype']
if domain.name == 'cpp' and typ == 'meth':
# C++ domain doesn't have "meth", everything is "func" there.
typ = 'func'
if resolved and (resolved[0] == typ or typ == 'obj'):
refdoc = node.get('refdoc', env.docname)
# Try to match the original, but with the canonical mangling
# (depending on Python versus C++)
if len(contnode.children) and not node.get('refexplicit'):
oldtext = contnode.children[0].astext()
if domain.name == 'cpp':
text = resolved[1]
text = '::'.join(
text.split('::')[-oldtext.replace('.', '::').count('.') -
1:])
else:
text = prefix + resolved[1]
text = '.'.join(text.split('.')[-oldtext.count('.') - 1:])
if oldtext.endswith("()"):
text += "()"
contnode.children[0] = nodes.Text(text)
elif domain.name == 'cpp':
# Work around a bug in the C++ resolver, which expects this
# text node to be the child of an Element. I picked a
# decoration element since it happens not to translate to
# anything (not sure what its purpose is).
if isinstance(contnode, nodes.Text):
contnode = nodes.decoration('', contnode)
# C++ references don't have a module prefix and use :: for scoping
if domain.name == 'cpp':
target = resolved[1]
if typ == 'obj':
# Another bug workaround
typ = resolved[0]
if typ in ('enum', 'class', 'struct',
'union') and resolved[0] == 'type':
# Squelch warning
typ = resolved[0]
else:
target = prefix + resolved[1]
return domain.resolve_xref(env, refdoc, app.builder, typ, target, node,
contnode)
def resolve_reference(ref, rel, domain='py'):
"""Looks up an interrogate symbol to its canonical name. The second
argument is the fully qualified name it should be seen relative to, which
may be a module name, or a module name followed by an object name.
If found, returns a 2-tuple (type, fqname), else None."""
# Find out which module we should be looking in.
modname = None
relpath = None
rel_parts = rel.replace('::', '.').split('.')
for i in range(len(rel_parts), 0, -1):
try_modname = '.'.join(rel_parts[:i])
if idb.has_module(try_modname):
modname = try_modname
relpath = rel_parts[i:]
break
if not modname:
return None
refpath = ref.replace('::', '.').split('.')
# Say `rel` is "panda3d.core.NodePath.node",
# and `ref` is "PandaNode.final", then we will try these in this order:
# - panda3d.core::NodePath.node.PandaNode.final
# - panda3d.core::NodePath.PandaNode.final
# - panda3d.core::PandaNode.final
for i in range(len(relpath), -1, -1):
search = relpath[:i] + refpath
if len(refpath) == 1 and i > 0 and refpath[0] == relpath[i - 1]:
# If we are looking for a name equal to the parent scope, we are
# probably referencing a class name from within that very class.
# We don't want to find the constructor, so skip this.
continue
ifunc = idb.lookup_function(modname, search)
if ifunc:
if domain == 'cpp':
func_name = interrogate_function_scoped_name(ifunc)
return ('func', func_name)
elif domain == 'py':
# Grab the mangled function name.
func_name = idb.get_function_name(ifunc, mangle=True)
if len(search) == 1:
return ('func', func_name)
else:
return ('meth',
'.'.join(relpath[:i] + refpath[:-1] + [func_name]))
itype = idb.lookup_type(modname, search)
if itype:
# Grab the original type name.
if domain == 'cpp':
type_name = interrogate_type_scoped_name(itype)
if interrogate_type_is_typedef(itype):
return ('type', type_name)
elif interrogate_type_is_enum(itype):
return ('enum', type_name)
elif interrogate_type_is_struct(itype):
return ('struct', type_name)
elif interrogate_type_is_class(itype):
return ('class', type_name)
elif interrogate_type_is_union(itype):
return ('union', type_name)
elif domain == 'py':
type_name = idb.get_type_name(itype, mangle=False, scoped=True)
return ('class', type_name)
if len(rel_parts
) >= 2 and rel_parts[0] == 'panda3d' and rel_parts[1] != 'core':
# Look in panda3d.core instead, prefix the result with the module name.
rel_parts[1] = 'core'
resolved = resolve_reference(ref, '.'.join(rel_parts), domain=domain)
if resolved and domain == 'py':
return (resolved[0], 'panda3d.core.' + resolved[1])
else:
return resolved
