本文整理汇总了Python中pypy.translator.c.support.cdecl函数的典型用法代码示例。如果您正苦于以下问题：Python cdecl函数的具体用法？Python cdecl怎么用？Python cdecl使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。
在下文中一共展示了cdecl函数的19个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于我们的系统推荐出更棒的Python代码示例。
示例1: visitor_lines
def visitor_lines(self, prefix, on_item):
assert self.varlength == 1
ARRAY = self.ARRAY
# we need a unique name for this C variable, or at least one that does
# not collide with the expression in 'prefix'
i = 0
varname = 'p0'
while prefix.find(varname) >= 0:
i += 1
varname = 'p%d' % i
body = list(on_item('(*%s)' % varname, ARRAY.OF))
if body:
yield '{'
yield '\t%s = %s.items;' % (cdecl(self.itemtypename, '*' + varname),
prefix)
yield '\t%s = %s + %s.length;' % (cdecl(self.itemtypename,
'*%s_end' % varname),
varname,
prefix)
yield '\twhile (%s != %s_end) {' % (varname, varname)
for line in body:
yield '\t\t' + line
yield '\t\t%s++;' % varname
yield '\t}'
yield '}'
开发者ID:ieure，项目名称:pypy，代码行数:25，代码来源:node.py
示例2: get
def get(self, obj, funcgen=None):
if isinstance(obj, CConstant):
return obj.c_name # without further checks
T = typeOf(obj)
if isinstance(T, Primitive) or T == GCREF:
return PrimitiveName[T](obj, self)
elif isinstance(T, Ptr):
if (isinstance(T.TO, OpaqueType) and
T.TO.hints.get('c_pointer_typedef') is not None):
if obj._obj is not None:
value = rffi.cast(rffi.SSIZE_T, obj)
return '((%s) %s)' % (cdecl(self.gettype(T), ''),
self.get(value))
if obj: # test if the ptr is non-NULL
try:
container = obj._obj
except lltype.DelayedPointer:
# hack hack hack
name = obj._obj0
assert name.startswith('delayed!')
n = len('delayed!')
if len(name) == n:
raise
if isinstance(lltype.typeOf(obj).TO, lltype.FuncType):
if obj in self.idelayedfunctionnames:
return self.idelayedfunctionnames[obj][0]
funcname = name[n:]
funcname = self.namespace.uniquename('g_'+funcname)
self.idelayedfunctionnames[obj] = funcname, obj
else:
funcname = None # can't use the name of a
# delayed non-function ptr
self.delayedfunctionptrs.append(obj)
return funcname
# /hack hack hack
else:
# hack hack hack
if obj in self.idelayedfunctionnames:
# this used to be a delayed function,
# make sure we use the same name
forcename = self.idelayedfunctionnames[obj][0]
node = self.getcontainernode(container,
forcename=forcename)
assert node.getptrname() == forcename
return forcename
# /hack hack hack
if isinstance(container, int):
# special case for tagged odd-valued pointers
return '((%s) %d)' % (cdecl(self.gettype(T), ''),
obj._obj)
node = self.getcontainernode(container)
if node._funccodegen_owner is None:
node._funccodegen_owner = funcgen
return node.getptrname()
else:
return '((%s) NULL)' % (cdecl(self.gettype(T), ''), )
else:
raise Exception("don't know about %r" % (obj,))
开发者ID:Debug-Orz，项目名称:Sypy，代码行数:59，代码来源:database.py
示例3: OP_FLAVORED_MALLOC_VARSIZE
def OP_FLAVORED_MALLOC_VARSIZE(self, op):
# XXX this function should DIE!, at least twice over
# XXX I know this working in just one case, probably makes
# sense to assert it here, rest is just copied
flavor = op.args[0].value
assert flavor == 'raw'
TYPE = self.lltypemap(op.result).TO
assert isinstance(TYPE, Array)
assert TYPE._hints.get('nolength', False)
# </obscure hack>
typename = self.db.gettype(TYPE)
lenfld = 'length'
nodedef = self.db.gettypedefnode(TYPE)
if isinstance(TYPE, Struct):
arfld = TYPE._arrayfld
lenfld = "%s.length" % nodedef.c_struct_field_name(arfld)
VARPART = TYPE._flds[TYPE._arrayfld]
else:
VARPART = TYPE
assert isinstance(VARPART, Array)
itemtypename = self.db.gettype(VARPART.OF)
elength = self.expr(op.args[2])
eresult = self.expr(op.result)
erestype = cdecl(typename, '*')
if VARPART.OF is Void: # strange
esize = 'sizeof(%s)' % (cdecl(typename, ''),)
result = '{\n'
else:
itemtype = cdecl(itemtypename, '')
result = 'IF_VARSIZE_OVERFLOW(%s, %s, %s)\nelse {\n' % (
elength,
itemtype,
eresult)
esize = 'sizeof(%s)-sizeof(%s)+%s*sizeof(%s)' % (
cdecl(typename, ''),
itemtype,
elength,
itemtype)
# ctypes Arrays have no length field
if not VARPART._hints.get('nolength', False):
result += '\nif(%s) %s->%s = %s;' % (eresult, eresult, lenfld, elength)
if flavor == "raw":
result += "OP_RAW_MALLOC(%s, %s, %s);" % (esize, eresult, erestype)
elif flavor == "stack":
result += "OP_STACK_MALLOC(%s, %s, %s);" % (esize, eresult, erestype)
elif flavor == "cpy":
xxx # this will never work, as I don't know which arg it would be
# tests, tests, tests....
cpytype = self.expr(op.args[2])
result += "OP_CPY_MALLOC(%s, %s, %s);" % (cpytype, eresult, erestype)
else:
raise NotImplementedError
result += '\n}'
return result
开发者ID:TheDunn，项目名称:flex-pypy，代码行数:56，代码来源:funcgen.py
示例4: get
def get(self, obj):
if isinstance(obj, ErrorValue):
T = obj.TYPE
if isinstance(T, Primitive):
return PrimitiveErrorValue[T]
elif isinstance(T, Ptr):
return 'NULL'
else:
raise Exception("don't know about %r" % (T,))
else:
T = typeOf(obj)
if isinstance(T, Primitive):
return PrimitiveName[T](obj, self)
elif isinstance(T, Ptr):
if obj: # test if the ptr is non-NULL
try:
container = obj._obj
except lltype.DelayedPointer:
# hack hack hack
name = obj._obj0
assert name.startswith('delayed!')
n = len('delayed!')
if len(name) == n:
raise
if id(obj) in self.delayedfunctionnames:
return self.delayedfunctionnames[id(obj)][0]
funcname = name[n:]
funcname = self.namespace.uniquename('g_' + funcname)
self.delayedfunctionnames[id(obj)] = funcname, obj
self.delayedfunctionptrs.append(obj)
return funcname
# /hack hack hack
else:
# hack hack hack
if id(obj) in self.delayedfunctionnames:
# this used to be a delayed function,
# make sure we use the same name
forcename = self.delayedfunctionnames[id(obj)][0]
node = self.getcontainernode(container,
forcename=forcename)
assert node.ptrname == forcename
return forcename
# /hack hack hack
if isinstance(container, int):
# special case for tagged odd-valued pointers
return '((%s) %d)' % (cdecl(self.gettype(T), ''),
obj._obj)
node = self.getcontainernode(container)
return node.ptrname
else:
return '((%s) NULL)' % (cdecl(self.gettype(T), ''), )
else:
raise Exception("don't know about %r" % (obj,))
开发者ID:TheDunn，项目名称:flex-pypy，代码行数:54，代码来源:database.py
示例5: definition
def definition(self):
gcpolicy = self.db.gcpolicy
yield 'struct %s {' % self.name
for fname, typename in self.gcfields:
yield '\t' + cdecl(typename, fname) + ';'
if not self.ARRAY._hints.get('nolength', False):
yield '\tlong length;'
line = '%s;' % cdecl(self.itemtypename, 'items[%d]'% self.varlength)
if self.ARRAY.OF is Void: # strange
line = '/* %s */' % line
yield '\t' + line
yield '};'
开发者ID:antoine1fr，项目名称:pygirl，代码行数:12，代码来源:node.py
示例6: get
def get(self, obj):
# XXX extra indent is preserve svn blame - kind of important IMHO (rxe)
if 1:
if isinstance(obj, CConstant):
return obj.c_name # without further checks
T = typeOf(obj)
if isinstance(T, Primitive) or T == GCREF:
return PrimitiveName[T](obj, self)
elif isinstance(T, Ptr):
if obj: # test if the ptr is non-NULL
try:
container = obj._obj
except lltype.DelayedPointer:
# hack hack hack
name = obj._obj0
assert name.startswith('delayed!')
n = len('delayed!')
if len(name) == n:
raise
if isinstance(lltype.typeOf(obj).TO, lltype.FuncType):
if id(obj) in self.delayedfunctionnames:
return self.delayedfunctionnames[id(obj)][0]
funcname = name[n:]
funcname = self.namespace.uniquename('g_'+funcname)
self.delayedfunctionnames[id(obj)] = funcname, obj
else:
funcname = None # can't use the name of a
# delayed non-function ptr
self.delayedfunctionptrs.append(obj)
return funcname
# /hack hack hack
else:
# hack hack hack
if id(obj) in self.delayedfunctionnames:
# this used to be a delayed function,
# make sure we use the same name
forcename = self.delayedfunctionnames[id(obj)][0]
node = self.getcontainernode(container,
forcename=forcename)
assert node.ptrname == forcename
return forcename
# /hack hack hack
if isinstance(container, int):
# special case for tagged odd-valued pointers
return '((%s) %d)' % (cdecl(self.gettype(T), ''),
obj._obj)
node = self.getcontainernode(container)
return node.ptrname
else:
return '((%s) NULL)' % (cdecl(self.gettype(T), ''), )
else:
raise Exception("don't know about %r" % (obj,))
开发者ID:AishwaryaKM，项目名称:python-tutorial，代码行数:53，代码来源:database.py
示例7: forward_declaration
def forward_declaration(self):
hash_typename = self.get_hash_typename()
hash_offset = self.db.gctransformer.get_hash_offset(self.T)
yield '%s {' % cdecl(hash_typename, '')
yield '\tunion {'
yield '\t\t%s;' % cdecl(self.implementationtypename, 'head')
yield '\t\tchar pad[%s];' % name_signed(hash_offset, self.db)
yield '\t} u;'
yield '\tlong hash;'
yield '};'
yield '%s;' % (
forward_cdecl(hash_typename, '_hash_' + self.name,
self.db.standalone, self.is_thread_local()),)
yield '#define %s _hash_%s.u.head' % (self.name, self.name)
开发者ID:enyst，项目名称:plexnet，代码行数:14，代码来源:node.py
示例8: forward_declaration
def forward_declaration(self):
T = self.getTYPE()
assert self.typename == self.implementationtypename # no array part
hash_typename = self.get_hash_typename()
hash_offset = self.db.gctransformer.get_hash_offset(T)
yield "%s {" % cdecl(hash_typename, "")
yield "\tunion {"
yield "\t\t%s;" % cdecl(self.implementationtypename, "head")
yield "\t\tchar pad[%s];" % name_signed(hash_offset, self.db)
yield "\t} u;"
yield "\tlong hash;"
yield "};"
yield "%s;" % (forward_cdecl(hash_typename, "_hash_" + self.name, self.db.standalone, self.is_thread_local()),)
yield "#define %s _hash_%s.u.head" % (self.name, self.name)
开发者ID:junion，项目名称:butlerbot-unstable，代码行数:14，代码来源:node.py
示例9: definition
def definition(self):
gcpolicy = self.db.gcpolicy
yield "struct %s {" % self.name
for fname, typename in self.gcfields:
yield "\t" + cdecl(typename, fname) + ";"
if not self.ARRAY._hints.get("nolength", False):
yield "\tlong length;"
line = "%s;" % cdecl(self.itemtypename, "items[%d]" % self.varlength)
if self.ARRAY.OF is Void: # strange
line = "/* array of void */"
if self.ARRAY._hints.get("nolength", False):
line = "char _dummy; " + line
yield "\t" + line
yield "};"
开发者ID:AishwaryaKM，项目名称:python-tutorial，代码行数:14，代码来源:node.py
示例10: OP_DEBUG_LLINTERPCALL
def OP_DEBUG_LLINTERPCALL(self, op):
result = "abort(); /* debug_llinterpcall should be unreachable */"
TYPE = self.lltypemap(op.result)
if TYPE is not Void:
typename = self.db.gettype(TYPE)
result += "\n%s = (%s)0;" % (self.expr(op.result), cdecl(typename, ""))
return result
开发者ID:junion，项目名称:butlerbot-unstable，代码行数:7，代码来源:funcgen.py
示例11: OP_CAST_WEAKADR_TO_PTR
def OP_CAST_WEAKADR_TO_PTR(self, op):
TYPE = self.lltypemap(op.result)
assert TYPE != PyObjPtr
typename = self.db.gettype(TYPE)
return '%s = (%s)REVEAL_POINTER(%s);' % (self.expr(op.result),
cdecl(typename, ''),
self.expr(op.args[0]))
开发者ID:TheDunn，项目名称:flex-pypy，代码行数:7，代码来源:funcgen.py
示例12: implementation
def implementation(self):
hash_typename = self.get_hash_typename()
hash = self.db.gcpolicy.get_prebuilt_hash(self.obj)
assert hash is not None
lines = list(self.initializationexpr())
lines.insert(0, "%s = { {" % (cdecl(hash_typename, "_hash_" + self.name, self.is_thread_local()),))
lines.append("}, %s /* hash */ };" % name_signed(hash, self.db))
return lines
开发者ID:junion，项目名称:butlerbot-unstable，代码行数:8，代码来源:node.py
示例13: name_signed
def name_signed(value, db):
if isinstance(value, Symbolic):
if isinstance(value, FieldOffset):
structnode = db.gettypedefnode(value.TYPE)
return 'offsetof(%s, %s)'%(
cdecl(db.gettype(value.TYPE), ''),
structnode.c_struct_field_name(value.fldname))
elif isinstance(value, ItemOffset):
if value.TYPE != Void:
return '(sizeof(%s) * %s)'%(
cdecl(db.gettype(value.TYPE), ''), value.repeat)
else:
return '0'
elif isinstance(value, ArrayItemsOffset):
if isinstance(value.TYPE, FixedSizeArray):
return '0'
elif value.TYPE.OF != Void:
return 'offsetof(%s, items)'%(
cdecl(db.gettype(value.TYPE), ''))
else:
return 'sizeof(%s)'%(cdecl(db.gettype(value.TYPE), ''),)
elif isinstance(value, ArrayLengthOffset):
return 'offsetof(%s, length)'%(
cdecl(db.gettype(value.TYPE), ''))
elif isinstance(value, CompositeOffset):
names = [name_signed(item, db) for item in value.offsets]
return '(%s)' % (' + '.join(names),)
elif type(value) == AddressOffset:
return '0'
elif type(value) == GCHeaderOffset:
return '0'
elif isinstance(value, CDefinedIntSymbolic):
return str(value.expr)
elif isinstance(value, ComputedIntSymbolic):
value = value.compute_fn()
elif isinstance(value, CConstant):
return value.c_name
else:
raise Exception("unimplemented symbolic %r"%value)
if value is None:
assert not db.completed
return None
if value == -sys.maxint-1: # blame C
return '(-%dL-1L)' % sys.maxint
else:
return '%dL' % value
开发者ID:TheDunn，项目名称:flex-pypy，代码行数:46，代码来源:primitive.py
示例14: OP_FLAVORED_MALLOC
def OP_FLAVORED_MALLOC(self, op):
# XXX this function should DIE!
TYPE = self.lltypemap(op.result).TO
typename = self.db.gettype(TYPE)
eresult = self.expr(op.result)
esize = 'sizeof(%s)' % cdecl(typename, '')
erestype = cdecl(typename, '*')
flavor = op.args[0].value
if flavor == "raw":
return "OP_RAW_MALLOC(%s, %s, %s);" % (esize, eresult, erestype)
elif flavor == "stack":
return "OP_STACK_MALLOC(%s, %s, %s);" % (esize, eresult, erestype)
elif flavor == "cpy":
cpytype = self.expr(op.args[2])
return "OP_CPY_MALLOC(%s, %s, %s);" % (cpytype, eresult, erestype)
else:
raise NotImplementedError
开发者ID:TheDunn，项目名称:flex-pypy，代码行数:17，代码来源:funcgen.py
示例15: implementation
def implementation(self):
if llgroup.member_of_group(self.obj):
return []
lines = list(self.initializationexpr())
lines[0] = '%s = %s' % (
cdecl(self.implementationtypename, self.name, self.is_thread_local()),
lines[0])
lines[-1] += ';'
return lines
开发者ID:enyst，项目名称:plexnet，代码行数:9，代码来源:node.py
示例16: ptr_access_expr
def ptr_access_expr(self, baseexpr, fldname):
if self.STRUCT._hints.get("inline_head"):
first, FIRST = self.STRUCT._first_struct()
if fldname == first:
# "invalid" cast according to C99 but that's what CPython
# requires and does all the time :-/
return "(*(%s) %s)" % (cdecl(self.db.gettype(FIRST), "*"), baseexpr)
fldname = self.c_struct_field_name(fldname)
return "RPyField(%s, %s)" % (baseexpr, fldname)
开发者ID:AishwaryaKM，项目名称:python-tutorial，代码行数:9，代码来源:node.py
示例17: gettype
def gettype(self, T, varlength=1, who_asks=None, argnames=[]):
if isinstance(T, Primitive) or T == GCREF:
return PrimitiveType[T]
elif isinstance(T, Typedef):
return '%s @' % T.c_name
elif isinstance(T, Ptr):
if (isinstance(T.TO, OpaqueType) and
T.TO.hints.get('c_pointer_typedef') is not None):
return '%s @' % T.TO.hints['c_pointer_typedef']
try:
node = self.gettypedefnode(T.TO)
except NoCorrespondingNode:
pass
else:
if hasattr(node, 'getptrtype'):
return node.getptrtype() # special-casing because of C
typename = self.gettype(T.TO) # who_asks not propagated
return typename.replace('@', '*@')
elif isinstance(T, (Struct, Array, _WeakRefType)):
node = self.gettypedefnode(T, varlength=varlength)
if who_asks is not None:
who_asks.dependencies[node] = True
return node.gettype()
elif T == PyObject:
return 'PyObject @'
elif isinstance(T, FuncType):
resulttype = self.gettype(T.RESULT)
argtypes = []
for i in range(len(T.ARGS)):
if T.ARGS[i] is not Void:
argtype = self.gettype(T.ARGS[i])
try:
argname = argnames[i]
except IndexError:
argname = ''
argtypes.append(cdecl(argtype, argname))
argtypes = ', '.join(argtypes) or 'void'
return resulttype.replace('@', '(@)(%s)' % argtypes)
elif isinstance(T, OpaqueType):
if T == RuntimeTypeInfo:
return self.gcpolicy.rtti_type()
elif T.hints.get("render_structure", False):
node = self.gettypedefnode(T, varlength=varlength)
if who_asks is not None:
who_asks.dependencies[node] = True
return 'struct %s @' % node.name
elif T.hints.get('external', None) == 'C':
return '%s @' % T.hints['c_name']
else:
#raise Exception("don't know about opaque type %r" % (T,))
return 'struct %s @' % (
valid_identifier('pypy_opaque_' + T.tag),)
elif isinstance(T, llgroup.GroupType):
return "/*don't use me*/ void @"
else:
raise Exception("don't know about type %r" % (T,))
开发者ID:Debug-Orz，项目名称:Sypy，代码行数:56，代码来源:database.py
示例18: definition
def definition(self):
gcpolicy = self.db.gcpolicy
yield 'struct %s {' % self.name
for fname, typename in self.gcfields:
yield '\t' + cdecl(typename, fname) + ';'
if not self.ARRAY._hints.get('nolength', False):
yield '\tlong length;'
line = '%s;' % cdecl(self.itemtypename, 'items[%d]'% self.varlength)
if self.ARRAY.OF is Void: # strange
line = '/* array of void */'
if self.ARRAY._hints.get('nolength', False):
line = 'char _dummy; ' + line
yield '\t' + line
yield '};'
if self.varlength != 1:
yield 'union %su {' % self.name
yield ' struct %s a;' % self.name
yield ' %s;' % cdecl(self.normalizedtypename, 'b')
yield '};'
开发者ID:ieure，项目名称:pypy，代码行数:19，代码来源:node.py
示例19: OP_CAST_PRIMITIVE
def OP_CAST_PRIMITIVE(self, op):
TYPE = self.lltypemap(op.result)
val = self.expr(op.args[0])
ORIG = self.lltypemap(op.args[0])
if ORIG is Char:
val = "(unsigned char)%s" % val
elif ORIG is UniChar:
val = "(unsigned long)%s" % val
result = self.expr(op.result)
typename = cdecl(self.db.gettype(TYPE), '')
return "%(result)s = (%(typename)s)(%(val)s);" % locals()
开发者ID:ieure，项目名称:pypy，代码行数:11，代码来源:funcgen.py
注：本文中的pypy.translator.c.support.cdecl函数示例由纯净天空整理自Github/MSDocs等源码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。 |
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