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doc: convert refcounting directive to a class

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Directive functions are no longer supported in Sphinx-3.0
but directive classes have been supported since early 1.x
This commit is contained in:
Pierce Lopez 2020-08-07 01:54:45 -04:00
parent 73ccec0601
commit 798d40c3f3
1 changed files with 20 additions and 11 deletions
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21
doc/ext/refcounting.py
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@ -24,8 +24,8 @@
""" """
from docutils import nodes from docutils import nodes
from docutils.parsers.rst import Directive
class refcounting(nodes.emphasis): pass
def visit(self, node): def visit(self, node):
self.visit_emphasis(node) self.visit_emphasis(node)
@ -40,21 +40,30 @@ def html_depart(self, node):
self.body.append('</em>') self.body.append('</em>')
def refcounting_directive(name, arguments, options, content, lineno, class refcounting(nodes.emphasis):
content_offset, block_text, state, state_machine): pass
if arguments[0] == 'borrow':
class refcounting_directive(Directive):
has_content = False
required_arguments = 1
optional_arguments = 0
final_argument_whitespace = False
def run(self):
if self.arguments[0] == 'borrow':
text = 'Return value: Borrowed reference.' text = 'Return value: Borrowed reference.'
elif arguments[0] == 'new': elif self.arguments[0] == 'new':
text = 'Return value: New reference.' text = 'Return value: New reference.'
else: else:
raise Error('Valid arguments: new, borrow') raise Error('Valid arguments: new, borrow')
return [refcounting(text, text)] return [refcounting(text, text)]
def setup(app): def setup(app):
app.add_node(refcounting, app.add_node(refcounting,
html=(html_visit, html_depart), html=(html_visit, html_depart),
latex=(visit, depart), latex=(visit, depart),
text=(visit, depart), text=(visit, depart),
man=(visit, depart)) man=(visit, depart))
app.add_directive('refcounting', refcounting_directive, 0, (1, 0, 0)) app.add_directive('refcounting', refcounting_directive)