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b89dba22cd
Remove unused imports and reorder other imports so that the standard ones are coming first. Signed-off-by: Yegor Yefremov <yegorslists@googlemail.com>
347 lines
11 KiB
Python
347 lines
11 KiB
Python
# SPDX-FileCopyrightText: 2022 Emmanuele Bassi
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#
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# SPDX-License-Identifier: LGPL-2.1-or-later
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import os
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import re
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import textwrap
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# Disable line length warnings as wrapping the templates would be hard
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# flake8: noqa: E501
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class RstCodeGenerator:
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"""Generates documentation in reStructuredText format."""
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def __init__(self, ifaces):
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self.ifaces = ifaces
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self._generate_expand_dicts()
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def _expand(self, s, expandParamsAndConstants):
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"""Expands parameters and constant literals."""
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res = []
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for line in textwrap.dedent(s).split("\n"):
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line = line.rstrip()
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if line == "":
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res.append("")
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continue
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for key in self._expand_member_dict_keys:
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line = line.replace(key, self._expand_member_dict[key])
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for key in self._expand_iface_dict_keys:
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line = line.replace(key, self._expand_iface_dict[key])
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if expandParamsAndConstants:
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# replace @foo with ``foo``
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line = re.sub(
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"@[a-zA-Z0-9_]*",
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lambda m: "``" + m.group(0)[1:] + "``",
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line,
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)
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# replace e.g. %TRUE with ``TRUE``
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line = re.sub(
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"%[a-zA-Z0-9_]*",
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lambda m: "``" + m.group(0)[1:] + "``",
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line,
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)
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res.append(line)
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return "\n".join(res)
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def _generate_expand_dicts(self):
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"""Generates the dictionaries used to expand gtk-doc sigils."""
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self._expand_member_dict = {}
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self._expand_iface_dict = {}
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for i in self.ifaces:
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key = f"#{i.name}"
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value = f"`{i.name}`_"
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self._expand_iface_dict[key] = value
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for m in i.methods:
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key = "%s.%s()" % (i.name, m.name)
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value = f"`{i.name}.{m.name}`_"
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self._expand_member_dict[key] = value
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for s in i.signals:
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key = "#%s::%s" % (i.name, s.name)
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value = f"`{i.name}::{s.name}`_"
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self._expand_member_dict[key] = value
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for p in i.properties:
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key = "#%s:%s" % (i.name, p.name)
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value = f"`{i.name}:{p.name}`_"
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self._expand_member_dict[key] = value
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# Make sure to expand the keys in reverse order so e.g. #org.foo.Iface:MediaCompat
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# is evaluated before #org.foo.Iface:Media ...
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self._expand_member_dict_keys = sorted(
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self._expand_member_dict.keys(), reverse=True
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)
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self._expand_iface_dict_keys = sorted(
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self._expand_iface_dict.keys(), reverse=True
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)
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def _generate_header(self, iface):
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"""Generates the header and preamble of the document."""
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iface_name = iface.name_without_prefix
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header_len = len(iface_name)
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res = [
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f".. _{iface.name}:",
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"",
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"=" * header_len,
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iface_name,
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"=" * header_len,
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"",
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"-----------",
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"Description",
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"-----------",
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"",
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f".. _{iface.name} Description:",
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"",
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iface.doc_string_brief.strip(),
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"",
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self._expand(iface.doc_string, True),
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"",
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]
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if iface.since:
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res += [
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f"Interface available since: {iface.since}.",
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"",
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]
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if iface.deprecated:
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res += [
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".. warning::",
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"",
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" This interface is deprecated.",
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"",
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"",
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]
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res += [""]
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return "\n".join(res)
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def _generate_section(self, title, name):
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"""Generates a section with the given title."""
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res = [
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f".. _{name} {title}:",
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"",
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"-" * len(title),
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title,
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"-" * len(title),
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"",
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"",
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]
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return "\n".join(res)
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def _generate_properties(self, iface):
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"""Generates the properties section."""
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res = []
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for p in iface.properties:
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title = f"{iface.name}:{p.name}"
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if p.readable and p.writable:
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access = "readwrite"
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elif p.writable:
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access = "writable"
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else:
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access = "readable"
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res += [
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f".. _{title}:",
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"",
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title,
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"^" * len(title),
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"",
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"::",
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"",
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f" {p.name} {access} {p.signature}",
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"",
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"",
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self._expand(p.doc_string, True),
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"",
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]
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if p.since:
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res += [
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f"Property available since: {p.since}.",
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"",
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]
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if p.deprecated:
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res += [
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".. warning::",
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"",
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" This property is deprecated.",
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"",
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"",
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]
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res += [""]
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return "\n".join(res)
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def _generate_method_signature(self, method):
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"""Generates the method signature as a code block."""
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res = [
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"::",
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"",
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]
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n_in_args = len(method.in_args)
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n_out_args = len(method.out_args)
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if n_in_args == 0 and n_out_args == 0:
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res += [
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f" {method.name} ()",
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]
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else:
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res += [
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f" {method.name} (",
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]
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for idx, arg in enumerate(method.in_args):
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if idx == n_in_args - 1 and n_out_args == 0:
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res += [
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f" IN {arg.name} {arg.signature}",
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]
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else:
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res += [
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f" IN {arg.name} {arg.signature},",
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]
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for idx, arg in enumerate(method.out_args):
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if idx == n_out_args - 1:
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res += [
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f" OUT {arg.name} {arg.signature}",
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]
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else:
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res += [
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f" OUT {arg.name} {arg.signature},",
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]
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res += [
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" )",
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"",
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]
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res += [""]
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return "\n".join(res)
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def _generate_methods(self, iface):
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"""Generates the methods section."""
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res = []
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for m in iface.methods:
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title = f"{iface.name}.{m.name}"
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res += [
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f".. _{title}:",
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"",
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title,
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"^" * len(title),
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"",
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self._generate_method_signature(m),
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"",
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self._expand(m.doc_string, True),
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"",
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]
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for a in m.in_args:
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arg_desc = self._expand(a.doc_string, True)
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res += [
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f"{a.name}",
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f" {arg_desc}",
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"",
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]
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for a in m.out_args:
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arg_desc = self._expand(a.doc_string, True)
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res += [
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f"{a.name}",
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f" {arg_desc}",
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"",
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]
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res += [""]
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if m.since:
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res += [
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f"Method available since: {m.since}.",
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"",
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]
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if m.deprecated:
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res += [
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".. warning::",
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"",
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" This method is deprecated.",
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"",
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"",
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]
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res += [""]
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return "\n".join(res)
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def _generate_signal_signature(self, signal):
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"""Generates the signal signature."""
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res = [
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"::",
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"",
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]
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n_args = len(signal.args)
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if n_args == 0:
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res += [
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f" {signal.name} ()",
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]
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else:
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res += [
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f" {signal.name} (",
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]
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for idx, arg in enumerate(signal.args):
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if idx == n_args - 1:
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res += [
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f" {arg.name} {arg.signature}",
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]
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else:
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res += [
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f" {arg.name} {arg.signature},",
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]
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res += [
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" )",
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"",
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]
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res += [""]
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return "\n".join(res)
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def _generate_signals(self, iface):
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"""Generates the signals section."""
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res = []
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for s in iface.signals:
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title = f"{iface.name}::{s.name}"
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res += [
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f".. _{title}:",
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"",
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title,
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"^" * len(title),
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"",
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self._generate_signal_signature(s),
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"",
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self._expand(s.doc_string, True),
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"",
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]
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for a in s.args:
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arg_desc = self._expand(a.doc_string, True)
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res += [
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f"{a.name}",
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f" {arg_desc}",
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"",
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]
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res += [""]
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if s.since:
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res += [
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f"Signal available since: {s.since}.",
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"",
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]
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if s.deprecated:
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res += [
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".. warning::",
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"",
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" This signal is deprecated.",
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"",
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"",
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]
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res += [""]
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return "\n".join(res)
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def generate(self, rst, outdir):
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"""Generates the reStructuredText file for each interface."""
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for i in self.ifaces:
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with open(os.path.join(outdir, f"{rst}-{i.name}.rst"), "w") as outfile:
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outfile.write(self._generate_header(i))
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if len(i.properties) > 0:
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outfile.write(self._generate_section("Properties", i.name))
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outfile.write(self._generate_properties(i))
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if len(i.methods) > 0:
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outfile.write(self._generate_section("Methods", i.name))
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outfile.write(self._generate_methods(i))
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if len(i.signals) > 0:
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outfile.write(self._generate_section("Signals", i.name))
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outfile.write(self._generate_signals(i))
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