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/ proc / thread-self / root / opt / alt / python38 / lib64 / python3.8 / site-packages / Cython / Compiler / Tests /

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TestMemView.py

from Cython.TestUtils import CythonTest
import Cython.Compiler.Errors as Errors
from Cython.Compiler.Nodes import *
from Cython.Compiler.ParseTreeTransforms import *
from Cython.Compiler.Buffer import *

class TestMemviewParsing(CythonTest):

def parse(self, s):
        return self.should_not_fail(lambda: self.fragment(s)).root

def not_parseable(self, expected_error, s):
        e = self.should_fail(lambda: self.fragment(s),  Errors.CompileError)
        self.assertEqual(expected_error, e.message_only)

def test_default_1dim(self):
        self.parse(u"cdef int[:] x")
        self.parse(u"cdef short int[:] x")

def test_default_ndim(self):
        self.parse(u"cdef int[:,:,:,:,:] x")
        self.parse(u"cdef unsigned long int[:,:,:,:,:] x")
        self.parse(u"cdef unsigned int[:,:,:,:,:] x")

def test_zero_offset(self):
        self.parse(u"cdef long double[0:] x")
        self.parse(u"cdef int[0:] x")

def test_zero_offset_ndim(self):
        self.parse(u"cdef int[0:,0:,0:,0:] x")

def test_def_arg(self):
        self.parse(u"def foo(int[:,:] x): pass")

def test_cdef_arg(self):
        self.parse(u"cdef foo(int[:,:] x): pass")

def test_general_slice(self):
        self.parse(u'cdef float[::ptr, ::direct & contig, 0::full & strided] x')

def test_non_slice_memview(self):
        self.not_parseable(u"An axis specification in memoryview declaration does not have a ':'.",
                u"cdef double[:foo, bar] x")
        self.not_parseable(u"An axis specification in memoryview declaration does not have a ':'.",
                u"cdef double[0:foo, bar] x")

def test_basic(self):
        t = self.parse(u"cdef int[:] x")
        memv_node = t.stats[0].base_type
        self.assert_(isinstance(memv_node, MemoryViewSliceTypeNode))

# we also test other similar declarations (buffers, anonymous C arrays)
    # since the parsing has to distinguish between them.

def disable_test_no_buf_arg(self): # TODO
        self.not_parseable(u"Expected ']'",
                u"cdef extern foo(object[int, ndim=2])")

def disable_test_parse_sizeof(self): # TODO
        self.parse(u"sizeof(int[NN])")
        self.parse(u"sizeof(int[])")
        self.parse(u"sizeof(int[][NN])")
        self.not_parseable(u"Expected an identifier or literal",
                u"sizeof(int[:NN])")
        self.not_parseable(u"Expected ']'",
                u"sizeof(foo[dtype=bar]")

if __name__ == '__main__':
    import unittest
    unittest.main()

Name	Type	Size	Owner/Group	Permission	Last Modified	Actions
.	dir	-	root/linksafe	drwxr-xr-x	2024-06-02 05:10:52
..	dir	-	root/linksafe	drwxr-xr-x	2024-06-02 05:10:52
__pycache__	dir	-	root/linksafe	drwxr-xr-x	2024-06-02 05:10:52
TestBuffer.py	text/plain	4.03 KB	root/linksafe	-rw-r--r--	2018-03-18 06:52:10
TestCmdLine.py	text/x-script.python	4.31 KB	root/linksafe	-rw-r--r--	2018-03-18 06:52:10
TestFlowControl.py	text/x-script.python	1.8 KB	root/linksafe	-rw-r--r--	2018-03-18 06:52:10
TestGrammar.py	text/x-script.python	3.36 KB	root/linksafe	-rw-r--r--	2018-03-18 06:52:10
TestMemView.py	text/plain	2.45 KB	root/linksafe	-rw-r--r--	2018-03-18 06:52:10
TestParseTreeTransforms.py	text/x-script.python	8.3 KB	root/linksafe	-rw-r--r--	2018-03-18 06:52:10
TestSignatureMatching.py	text/x-script.python	3.26 KB	root/linksafe	-rw-r--r--	2018-03-18 06:52:10
TestTreeFragment.py	text/x-script.python	2.14 KB	root/linksafe	-rw-r--r--	2018-03-18 06:52:10
TestTreePath.py	text/x-script.python	4.14 KB	root/linksafe	-rw-r--r--	2018-03-18 06:52:10
TestTypes.py	text/x-script.python	669 B	root/linksafe	-rw-r--r--	2018-03-18 06:52:10
TestUtilityLoad.py	text/x-script.python	3.26 KB	root/linksafe	-rw-r--r--	2018-03-18 06:52:10
TestVisitor.py	text/x-script.python	2.18 KB	root/linksafe	-rw-r--r--	2018-03-18 06:52:10
__init__.py	text/plain	13 B	root/linksafe	-rw-r--r--	2018-03-18 06:52:10