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test_domain_c.py
606 lines (521 loc) · 20.9 KB
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test_domain_c.py
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"""
test_domain_c
~~~~~~~~~~~~~
Tests the C Domain
:copyright: Copyright 2007-2020 by the Sphinx team, see AUTHORS.
:license: BSD, see LICENSE for details.
"""
import pytest
from sphinx import addnodes
from sphinx.addnodes import desc
from sphinx.domains.c import DefinitionParser, DefinitionError
from sphinx.domains.c import _max_id, _id_prefix, Symbol
from sphinx.testing import restructuredtext
from sphinx.testing.util import assert_node
def parse(name, string):
class Config:
c_id_attributes = ["id_attr", 'LIGHTGBM_C_EXPORT']
c_paren_attributes = ["paren_attr"]
parser = DefinitionParser(string, location=None, config=Config())
parser.allowFallbackExpressionParsing = False
ast = parser.parse_declaration(name, name)
parser.assert_end()
return ast
def _check(name, input, idDict, output, key, asTextOutput):
if key is None:
key = name
key += ' '
if name in ('function', 'member'):
inputActual = input
outputAst = output
outputAsText = output
else:
inputActual = input.format(key='')
outputAst = output.format(key='')
outputAsText = output.format(key=key)
if asTextOutput is not None:
outputAsText = asTextOutput
# first a simple check of the AST
ast = parse(name, inputActual)
res = str(ast)
if res != outputAst:
print("")
print("Input: ", input)
print("Result: ", res)
print("Expected: ", outputAst)
raise DefinitionError("")
rootSymbol = Symbol(None, None, None, None)
symbol = rootSymbol.add_declaration(ast, docname="TestDoc")
parentNode = addnodes.desc()
signode = addnodes.desc_signature(input, '')
parentNode += signode
ast.describe_signature(signode, 'lastIsName', symbol, options={})
resAsText = parentNode.astext()
if resAsText != outputAsText:
print("")
print("Input: ", input)
print("astext(): ", resAsText)
print("Expected: ", outputAsText)
raise DefinitionError("")
idExpected = [None]
for i in range(1, _max_id + 1):
if i in idDict:
idExpected.append(idDict[i])
else:
idExpected.append(idExpected[i - 1])
idActual = [None]
for i in range(1, _max_id + 1):
#try:
id = ast.get_id(version=i)
assert id is not None
idActual.append(id[len(_id_prefix[i]):])
#except NoOldIdError:
# idActual.append(None)
res = [True]
for i in range(1, _max_id + 1):
res.append(idExpected[i] == idActual[i])
if not all(res):
print("input: %s" % input.rjust(20))
for i in range(1, _max_id + 1):
if res[i]:
continue
print("Error in id version %d." % i)
print("result: %s" % idActual[i])
print("expected: %s" % idExpected[i])
#print(rootSymbol.dump(0))
raise DefinitionError("")
def check(name, input, idDict, output=None, key=None, asTextOutput=None):
if output is None:
output = input
# First, check without semicolon
_check(name, input, idDict, output, key, asTextOutput)
if name != 'macro':
# Second, check with semicolon
_check(name, input + ' ;', idDict, output + ';', key,
asTextOutput + ';' if asTextOutput is not None else None)
def test_expressions():
def exprCheck(expr, output=None):
class Config:
c_id_attributes = ["id_attr"]
c_paren_attributes = ["paren_attr"]
parser = DefinitionParser(expr, location=None, config=Config())
parser.allowFallbackExpressionParsing = False
ast = parser.parse_expression()
parser.assert_end()
# first a simple check of the AST
if output is None:
output = expr
res = str(ast)
if res != output:
print("")
print("Input: ", input)
print("Result: ", res)
print("Expected: ", output)
raise DefinitionError("")
displayString = ast.get_display_string()
if res != displayString:
# note: if the expression contains an anon name then this will trigger a falsely
print("")
print("Input: ", expr)
print("Result: ", res)
print("Display: ", displayString)
raise DefinitionError("")
# type expressions
exprCheck('int*')
exprCheck('int *const*')
exprCheck('int *volatile*')
exprCheck('int *restrict*')
exprCheck('int *(*)(double)')
exprCheck('const int*')
exprCheck('__int64')
exprCheck('unsigned __int64')
# actual expressions
# primary
exprCheck('true')
exprCheck('false')
ints = ['5', '0', '075', '0x0123456789ABCDEF', '0XF', '0b1', '0B1']
unsignedSuffix = ['', 'u', 'U']
longSuffix = ['', 'l', 'L', 'll', 'LL']
for i in ints:
for u in unsignedSuffix:
for l in longSuffix:
expr = i + u + l
exprCheck(expr)
expr = i + l + u
exprCheck(expr)
for suffix in ['', 'f', 'F', 'l', 'L']:
for e in [
'5e42', '5e+42', '5e-42',
'5.', '5.e42', '5.e+42', '5.e-42',
'.5', '.5e42', '.5e+42', '.5e-42',
'5.0', '5.0e42', '5.0e+42', '5.0e-42']:
expr = e + suffix
exprCheck(expr)
for e in [
'ApF', 'Ap+F', 'Ap-F',
'A.', 'A.pF', 'A.p+F', 'A.p-F',
'.A', '.ApF', '.Ap+F', '.Ap-F',
'A.B', 'A.BpF', 'A.Bp+F', 'A.Bp-F']:
expr = "0x" + e + suffix
exprCheck(expr)
exprCheck('"abc\\"cba"') # string
# character literals
for p in ['', 'u8', 'u', 'U', 'L']:
exprCheck(p + "'a'")
exprCheck(p + "'\\n'")
exprCheck(p + "'\\012'")
exprCheck(p + "'\\0'")
exprCheck(p + "'\\x0a'")
exprCheck(p + "'\\x0A'")
exprCheck(p + "'\\u0a42'")
exprCheck(p + "'\\u0A42'")
exprCheck(p + "'\\U0001f34c'")
exprCheck(p + "'\\U0001F34C'")
exprCheck('(5)')
exprCheck('C')
# postfix
exprCheck('A(2)')
exprCheck('A[2]')
exprCheck('a.b.c')
exprCheck('a->b->c')
exprCheck('i++')
exprCheck('i--')
# unary
exprCheck('++5')
exprCheck('--5')
exprCheck('*5')
exprCheck('&5')
exprCheck('+5')
exprCheck('-5')
exprCheck('!5')
exprCheck('not 5')
exprCheck('~5')
exprCheck('compl 5')
exprCheck('sizeof(T)')
exprCheck('sizeof -42')
exprCheck('alignof(T)')
# cast
exprCheck('(int)2')
# binary op
exprCheck('5 || 42')
exprCheck('5 or 42')
exprCheck('5 && 42')
exprCheck('5 and 42')
exprCheck('5 | 42')
exprCheck('5 bitor 42')
exprCheck('5 ^ 42')
exprCheck('5 xor 42')
exprCheck('5 & 42')
exprCheck('5 bitand 42')
# ['==', '!=']
exprCheck('5 == 42')
exprCheck('5 != 42')
exprCheck('5 not_eq 42')
# ['<=', '>=', '<', '>']
exprCheck('5 <= 42')
exprCheck('5 >= 42')
exprCheck('5 < 42')
exprCheck('5 > 42')
# ['<<', '>>']
exprCheck('5 << 42')
exprCheck('5 >> 42')
# ['+', '-']
exprCheck('5 + 42')
exprCheck('5 - 42')
# ['*', '/', '%']
exprCheck('5 * 42')
exprCheck('5 / 42')
exprCheck('5 % 42')
# ['.*', '->*']
# conditional
# TODO
# assignment
exprCheck('a = 5')
exprCheck('a *= 5')
exprCheck('a /= 5')
exprCheck('a %= 5')
exprCheck('a += 5')
exprCheck('a -= 5')
exprCheck('a >>= 5')
exprCheck('a <<= 5')
exprCheck('a &= 5')
exprCheck('a and_eq 5')
exprCheck('a ^= 5')
exprCheck('a xor_eq 5')
exprCheck('a |= 5')
exprCheck('a or_eq 5')
def test_type_definitions():
check('type', "{key}T", {1: "T"})
check('type', "{key}bool *b", {1: 'b'}, key='typedef')
check('type', "{key}bool *const b", {1: 'b'}, key='typedef')
check('type', "{key}bool *const *b", {1: 'b'}, key='typedef')
check('type', "{key}bool *volatile *b", {1: 'b'}, key='typedef')
check('type', "{key}bool *restrict *b", {1: 'b'}, key='typedef')
check('type', "{key}bool *volatile const b", {1: 'b'}, key='typedef')
check('type', "{key}bool *volatile const b", {1: 'b'}, key='typedef')
check('type', "{key}bool *volatile const *b", {1: 'b'}, key='typedef')
check('type', "{key}bool b[]", {1: 'b'}, key='typedef')
check('type', "{key}long long int foo", {1: 'foo'}, key='typedef')
# test decl specs on right
check('type', "{key}bool const b", {1: 'b'}, key='typedef')
# from breathe#267 (named function parameters for function pointers
check('type', '{key}void (*gpio_callback_t)(struct device *port, uint32_t pin)',
{1: 'gpio_callback_t'}, key='typedef')
def test_macro_definitions():
check('macro', 'M', {1: 'M'})
check('macro', 'M()', {1: 'M'})
check('macro', 'M(arg)', {1: 'M'})
check('macro', 'M(arg1, arg2)', {1: 'M'})
check('macro', 'M(arg1, arg2, arg3)', {1: 'M'})
check('macro', 'M(...)', {1: 'M'})
check('macro', 'M(arg, ...)', {1: 'M'})
check('macro', 'M(arg1, arg2, ...)', {1: 'M'})
check('macro', 'M(arg1, arg2, arg3, ...)', {1: 'M'})
# GNU extension
check('macro', 'M(arg1, arg2, arg3...)', {1: 'M'})
with pytest.raises(DefinitionError):
check('macro', 'M(arg1, arg2..., arg3)', {1: 'M'})
def test_member_definitions():
check('member', 'void a', {1: 'a'})
check('member', '_Bool a', {1: 'a'})
check('member', 'bool a', {1: 'a'})
check('member', 'char a', {1: 'a'})
check('member', 'int a', {1: 'a'})
check('member', 'float a', {1: 'a'})
check('member', 'double a', {1: 'a'})
check('member', 'unsigned long a', {1: 'a'})
check('member', '__int64 a', {1: 'a'})
check('member', 'unsigned __int64 a', {1: 'a'})
check('member', 'int .a', {1: 'a'})
check('member', 'int *a', {1: 'a'})
check('member', 'int **a', {1: 'a'})
check('member', 'const int a', {1: 'a'})
check('member', 'volatile int a', {1: 'a'})
check('member', 'restrict int a', {1: 'a'})
check('member', 'volatile const int a', {1: 'a'})
check('member', 'restrict const int a', {1: 'a'})
check('member', 'restrict volatile int a', {1: 'a'})
check('member', 'restrict volatile const int a', {1: 'a'})
check('member', 'T t', {1: 't'})
check('member', 'int a[]', {1: 'a'})
check('member', 'int (*p)[]', {1: 'p'})
check('member', 'int a[42]', {1: 'a'})
check('member', 'int a = 42', {1: 'a'})
check('member', 'T a = {}', {1: 'a'})
check('member', 'T a = {1}', {1: 'a'})
check('member', 'T a = {1, 2}', {1: 'a'})
check('member', 'T a = {1, 2, 3}', {1: 'a'})
# test from issue #1539
check('member', 'CK_UTF8CHAR model[16]', {1: 'model'})
check('member', 'auto int a', {1: 'a'})
check('member', 'register int a', {1: 'a'})
check('member', 'extern int a', {1: 'a'})
check('member', 'static int a', {1: 'a'})
check('member', 'thread_local int a', {1: 'a'})
check('member', '_Thread_local int a', {1: 'a'})
check('member', 'extern thread_local int a', {1: 'a'})
check('member', 'thread_local extern int a', {1: 'a'},
'extern thread_local int a')
check('member', 'static thread_local int a', {1: 'a'})
check('member', 'thread_local static int a', {1: 'a'},
'static thread_local int a')
check('member', 'int b : 3', {1: 'b'})
def test_function_definitions():
check('function', 'void f()', {1: 'f'})
check('function', 'void f(int)', {1: 'f'})
check('function', 'void f(int i)', {1: 'f'})
check('function', 'void f(int i, int j)', {1: 'f'})
check('function', 'void f(...)', {1: 'f'})
check('function', 'void f(int i, ...)', {1: 'f'})
check('function', 'void f(struct T)', {1: 'f'})
check('function', 'void f(struct T t)', {1: 'f'})
check('function', 'void f(union T)', {1: 'f'})
check('function', 'void f(union T t)', {1: 'f'})
check('function', 'void f(enum T)', {1: 'f'})
check('function', 'void f(enum T t)', {1: 'f'})
# test from issue #1539
check('function', 'void f(A x[])', {1: 'f'})
# test from issue #2377
check('function', 'void (*signal(int sig, void (*func)(int)))(int)', {1: 'signal'})
check('function', 'extern void f()', {1: 'f'})
check('function', 'static void f()', {1: 'f'})
check('function', 'inline void f()', {1: 'f'})
# tests derived from issue #1753 (skip to keep sanity)
check('function', "void f(float *q(double))", {1: 'f'})
check('function', "void f(float *(*q)(double))", {1: 'f'})
check('function', "void f(float (*q)(double))", {1: 'f'})
check('function', "int (*f(double d))(float)", {1: 'f'})
check('function', "int (*f(bool b))[5]", {1: 'f'})
check('function', "void f(int *const p)", {1: 'f'})
check('function', "void f(int *volatile const p)", {1: 'f'})
# from breathe#223
check('function', 'void f(struct E e)', {1: 'f'})
check('function', 'void f(enum E e)', {1: 'f'})
check('function', 'void f(union E e)', {1: 'f'})
# array declarators
check('function', 'void f(int arr[])', {1: 'f'})
check('function', 'void f(int arr[*])', {1: 'f'})
cvrs = ['', 'const', 'volatile', 'restrict', 'restrict volatile const']
for cvr in cvrs:
space = ' ' if len(cvr) != 0 else ''
check('function', 'void f(int arr[{}*])'.format(cvr), {1: 'f'})
check('function', 'void f(int arr[{}])'.format(cvr), {1: 'f'})
check('function', 'void f(int arr[{}{}42])'.format(cvr, space), {1: 'f'})
check('function', 'void f(int arr[static{}{} 42])'.format(space, cvr), {1: 'f'})
check('function', 'void f(int arr[{}{}static 42])'.format(cvr, space), {1: 'f'},
output='void f(int arr[static{}{} 42])'.format(space, cvr))
check('function', 'void f(int arr[const static volatile 42])', {1: 'f'},
output='void f(int arr[static volatile const 42])')
def test_nested_name():
check('struct', '{key}.A', {1: "A"})
check('struct', '{key}.A.B', {1: "A.B"})
check('function', 'void f(.A a)', {1: "f"})
check('function', 'void f(.A.B a)', {1: "f"})
def test_union_definitions():
check('struct', '{key}A', {1: 'A'})
def test_union_definitions():
check('union', '{key}A', {1: 'A'})
def test_enum_definitions():
check('enum', '{key}A', {1: 'A'})
check('enumerator', '{key}A', {1: 'A'})
check('enumerator', '{key}A = 42', {1: 'A'})
def test_anon_definitions():
check('struct', '@a', {1: "@a"}, asTextOutput='struct [anonymous]')
check('union', '@a', {1: "@a"}, asTextOutput='union [anonymous]')
check('enum', '@a', {1: "@a"}, asTextOutput='enum [anonymous]')
check('struct', '@1', {1: "@1"}, asTextOutput='struct [anonymous]')
check('struct', '@a.A', {1: "@a.A"}, asTextOutput='struct [anonymous].A')
def test_initializers():
idsMember = {1: 'v'}
idsFunction = {1: 'f'}
# no init
check('member', 'T v', idsMember)
check('function', 'void f(T v)', idsFunction)
# with '=', assignment-expression
check('member', 'T v = 42', idsMember)
check('function', 'void f(T v = 42)', idsFunction)
# with '=', braced-init
check('member', 'T v = {}', idsMember)
check('function', 'void f(T v = {})', idsFunction)
check('member', 'T v = {42, 42, 42}', idsMember)
check('function', 'void f(T v = {42, 42, 42})', idsFunction)
check('member', 'T v = {42, 42, 42,}', idsMember)
check('function', 'void f(T v = {42, 42, 42,})', idsFunction)
# TODO: designator-list
def test_attributes():
# style: C++
check('member', '[[]] int f', {1: 'f'})
check('member', '[ [ ] ] int f', {1: 'f'},
# this will fail when the proper grammar is implemented
output='[[ ]] int f')
check('member', '[[a]] int f', {1: 'f'})
# style: GNU
check('member', '__attribute__(()) int f', {1: 'f'})
check('member', '__attribute__((a)) int f', {1: 'f'})
check('member', '__attribute__((a, b)) int f', {1: 'f'})
check('member', '__attribute__((optimize(3))) int f', {1: 'f'})
check('member', '__attribute__((format(printf, 1, 2))) int f', {1: 'f'})
# style: user-defined id
check('member', 'id_attr int f', {1: 'f'})
# style: user-defined paren
check('member', 'paren_attr() int f', {1: 'f'})
check('member', 'paren_attr(a) int f', {1: 'f'})
check('member', 'paren_attr("") int f',{1: 'f'})
check('member', 'paren_attr(()[{}][]{}) int f', {1: 'f'})
with pytest.raises(DefinitionError):
parse('member', 'paren_attr(() int f')
with pytest.raises(DefinitionError):
parse('member', 'paren_attr([) int f')
with pytest.raises(DefinitionError):
parse('member', 'paren_attr({) int f')
with pytest.raises(DefinitionError):
parse('member', 'paren_attr([)]) int f')
with pytest.raises(DefinitionError):
parse('member', 'paren_attr((])) int f')
with pytest.raises(DefinitionError):
parse('member', 'paren_attr({]}) int f')
# position: decl specs
check('function', 'static inline __attribute__(()) void f()', {1: 'f'},
output='__attribute__(()) static inline void f()')
check('function', '[[attr1]] [[attr2]] void f()', {1: 'f'})
# position: declarator
check('member', 'int *[[attr]] i', {1: 'i'})
check('member', 'int *const [[attr]] volatile i', {1: 'i'},
output='int *[[attr]] volatile const i')
check('member', 'int *[[attr]] *i', {1: 'i'})
# position: parameters
check('function', 'void f() [[attr1]] [[attr2]]', {1: 'f'})
# issue michaeljones/breathe#500
check('function', 'LIGHTGBM_C_EXPORT int LGBM_BoosterFree(int handle)',
{1: 'LGBM_BoosterFree'})
# def test_print():
# # used for getting all the ids out for checking
# for a in ids:
# print(a)
# raise DefinitionError("")
def filter_warnings(warning, file):
lines = warning.getvalue().split("\n");
res = [l for l in lines if "domain-c" in l and "{}.rst".format(file) in l and
"WARNING: document isn't included in any toctree" not in l]
print("Filtered warnings for file '{}':".format(file))
for w in res:
print(w)
return res
@pytest.mark.sphinx(testroot='domain-c', confoverrides={'nitpicky': True})
def test_build_domain_c(app, status, warning):
app.builder.build_all()
ws = filter_warnings(warning, "index")
assert len(ws) == 0
@pytest.mark.sphinx(testroot='domain-c', confoverrides={'nitpicky': True})
def test_build_domain_c_namespace(app, status, warning):
app.builder.build_all()
ws = filter_warnings(warning, "namespace")
assert len(ws) == 0
t = (app.outdir / "namespace.html").read_text()
for id_ in ('NS.NSVar', 'NULLVar', 'ZeroVar', 'NS2.NS3.NS2NS3Var', 'PopVar'):
assert 'id="c.{}"'.format(id_) in t
@pytest.mark.sphinx(testroot='domain-c', confoverrides={'nitpicky': True})
def test_build_domain_c_anon_dup_decl(app, status, warning):
app.builder.build_all()
ws = filter_warnings(warning, "anon-dup-decl")
assert len(ws) == 2
assert "WARNING: c:identifier reference target not found: @a" in ws[0]
assert "WARNING: c:identifier reference target not found: @b" in ws[1]
@pytest.mark.sphinx(testroot='domain-c', confoverrides={'nitpicky': True})
def test_build_domain_c_semicolon(app, status, warning):
app.builder.build_all()
ws = filter_warnings(warning, "semicolon")
assert len(ws) == 0
def test_cfunction(app):
text = (".. c:function:: PyObject* "
"PyType_GenericAlloc(PyTypeObject *type, Py_ssize_t nitems)")
doctree = restructuredtext.parse(app, text)
assert_node(doctree[1], addnodes.desc, desctype="function",
domain="c", objtype="function", noindex=False)
domain = app.env.get_domain('c')
entry = domain.objects.get('PyType_GenericAlloc')
assert entry == ('index', 'c.PyType_GenericAlloc', 'function')
def test_cmember(app):
text = ".. c:member:: PyObject* PyTypeObject.tp_bases"
doctree = restructuredtext.parse(app, text)
assert_node(doctree[1], addnodes.desc, desctype="member",
domain="c", objtype="member", noindex=False)
domain = app.env.get_domain('c')
entry = domain.objects.get('PyTypeObject.tp_bases')
assert entry == ('index', 'c.PyTypeObject.tp_bases', 'member')
def test_cvar(app):
text = ".. c:var:: PyObject* PyClass_Type"
doctree = restructuredtext.parse(app, text)
assert_node(doctree[1], addnodes.desc, desctype="var",
domain="c", objtype="var", noindex=False)
domain = app.env.get_domain('c')
entry = domain.objects.get('PyClass_Type')
assert entry == ('index', 'c.PyClass_Type', 'var')
def test_noindexentry(app):
text = (".. c:function:: void f()\n"
".. c:function:: void g()\n"
" :noindexentry:\n")
doctree = restructuredtext.parse(app, text)
assert_node(doctree, (addnodes.index, desc, addnodes.index, desc))
assert_node(doctree[0], addnodes.index, entries=[('single', 'f (C function)', 'c.f', '', None)])
assert_node(doctree[2], addnodes.index, entries=[])