def register_finalizer(caller, builder, env, context, type, gcmod, obj):
"""
Register a finalizer for the object given as pointer `obj`.
"""
from flypy.pipeline import phase
curphase = env['flypy.state.phase']
#(TODO: (indirect) allocation of a new object in __del__ will recurse
# infinitely)
if '__del__' in type.fields:
# Compile __del__
__del__ = type.fields['__del__']
lfunc, env = phase.apply_phase(phase.codegen, __del__, (type,),
env['flypy.target'])
# Retrieve function address of __del__
cfunc = env["codegen.llvm.ctypes"]
pointerval = ctypes.cast(cfunc, ctypes.c_void_p).value
ptr = ir.Pointer(pointerval, ptypes.Pointer(ptypes.Void))
context[ptr] = Pointer[void]
# Cast object to void *
obj_p = builder.convert(ptypes.Opaque, obj)
context[obj_p] = Pointer[void]
# Call gc_add_finalizer with (obj, ptr)
result = caller.call(curphase, gcmod.gc_add_finalizer, [obj_p, ptr])
context[result] = void
return [obj_p, result]
def register_finalizer(caller, builder, env, context, type, gcmod, obj):
"""
Register a finalizer for the object given as pointer `obj`.
"""
from flypy.pipeline import phase
curphase = env['flypy.state.phase']
#(TODO: (indirect) allocation of a new object in __del__ will recurse
# infinitely)
if '__del__' in type.fields:
# Compile __del__
__del__ = type.fields['__del__']
lfunc, env = phase.apply_phase(phase.codegen, __del__, (type, ),
env['flypy.target'])
# Retrieve function address of __del__
cfunc = env["codegen.llvm.ctypes"]
pointerval = ctypes.cast(cfunc, ctypes.c_void_p).value
ptr = ir.Pointer(pointerval, ptypes.Pointer(ptypes.Void))
context[ptr] = Pointer[void]
# Cast object to void *
obj_p = builder.convert(ptypes.Opaque, obj)
context[obj_p] = Pointer[void]
# Call gc_add_finalizer with (obj, ptr)
result = caller.call(curphase, gcmod.gc_add_finalizer, [obj_p, ptr])
context[result] = void
return [obj_p, result]
def call(self, phase_to_run, nb_func, args, argtypes=None, result=None):
from flypy.pipeline import phase
# Apply phase
if argtypes is None:
argtypes = tuple(self.context[arg] for arg in args)
target = self.env['flypy.target']
f, env = phase.apply_phase(phase_to_run, nb_func, argtypes, target)
# Generate call
result = self.builder.call(ptypes.Opaque, f, args, result=result)
# Update context
self.context[result] = env["flypy.typing.restype"]
return result
def call(self, phase_to_run, nb_func, args, argtypes=None, result=None):
from flypy.pipeline import phase
# Apply phase
if argtypes is None:
argtypes = tuple(self.context[arg] for arg in args)
target = self.env['flypy.target']
f, env = phase.apply_phase(phase_to_run, nb_func, argtypes, target)
# Generate call
result = self.builder.call(ptypes.Opaque, f, args, result=result)
# Update context
self.context[result] = env["flypy.typing.restype"]
return result
