<h2>Editing File: /usr/lib64/python3.6/site-packages/cffi/commontypes.py</h2><form method='post'><textarea name='content' class='file-edit'>import sys
from . import model
from .error import FFIError


COMMON_TYPES = {}

try:
    # fetch &quot;bool&quot; and all simple Windows types
    from _cffi_backend import _get_common_types
    _get_common_types(COMMON_TYPES)
except ImportError:
    pass

COMMON_TYPES['FILE'] = model.unknown_type('FILE', '_IO_FILE')
COMMON_TYPES['bool'] = '_Bool'    # in case we got ImportError above

for _type in model.PrimitiveType.ALL_PRIMITIVE_TYPES:
    if _type.endswith('_t'):
        COMMON_TYPES[_type] = _type
del _type

_CACHE = {}

def resolve_common_type(parser, commontype):
    try:
        return _CACHE[commontype]
    except KeyError:
        cdecl = COMMON_TYPES.get(commontype, commontype)
        if not isinstance(cdecl, str):
            result, quals = cdecl, 0    # cdecl is already a BaseType
        elif cdecl in model.PrimitiveType.ALL_PRIMITIVE_TYPES:
            result, quals = model.PrimitiveType(cdecl), 0
        elif cdecl == 'set-unicode-needed':
            raise FFIError(&quot;The Windows type %r is only available after &quot;
                           &quot;you call ffi.set_unicode()&quot; % (commontype,))
        else:
            if commontype == cdecl:
                raise FFIError(
                    &quot;Unsupported type: %r.  Please look at &quot;
        &quot;http://cffi.readthedocs.io/en/latest/cdef.html#ffi-cdef-limitations &quot;
                    &quot;and file an issue if you think this type should really &quot;
                    &quot;be supported.&quot; % (commontype,))
            result, quals = parser.parse_type_and_quals(cdecl)   # recursive

        assert isinstance(result, model.BaseTypeByIdentity)
        _CACHE[commontype] = result, quals
        return result, quals


# ____________________________________________________________
# extra types for Windows (most of them are in commontypes.c)


def win_common_types():
    return {
        &quot;UNICODE_STRING&quot;: model.StructType(
            &quot;_UNICODE_STRING&quot;,
            [&quot;Length&quot;,
             &quot;MaximumLength&quot;,
             &quot;Buffer&quot;],
            [model.PrimitiveType(&quot;unsigned short&quot;),
             model.PrimitiveType(&quot;unsigned short&quot;),
             model.PointerType(model.PrimitiveType(&quot;wchar_t&quot;))],
            [-1, -1, -1]),
        &quot;PUNICODE_STRING&quot;: &quot;UNICODE_STRING *&quot;,
        &quot;PCUNICODE_STRING&quot;: &quot;const UNICODE_STRING *&quot;,

        &quot;TBYTE&quot;: &quot;set-unicode-needed&quot;,
        &quot;TCHAR&quot;: &quot;set-unicode-needed&quot;,
        &quot;LPCTSTR&quot;: &quot;set-unicode-needed&quot;,
        &quot;PCTSTR&quot;: &quot;set-unicode-needed&quot;,
        &quot;LPTSTR&quot;: &quot;set-unicode-needed&quot;,
        &quot;PTSTR&quot;: &quot;set-unicode-needed&quot;,
        &quot;PTBYTE&quot;: &quot;set-unicode-needed&quot;,
        &quot;PTCHAR&quot;: &quot;set-unicode-needed&quot;,
        }

if sys.platform == 'win32':
    COMMON_TYPES.update(win_common_types())
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