def dumpFuncs(self):
meths = []
cases = []
args = ["PyObject", ("PyFrame", "frame")]
access = "private static"
callargs = [jast.Identifier("frame")]
for name, funcid, code in self.funccodes:
funcname = self.uniquename(name)
meths.append(jast.Method(funcname, access, args, clean(code)))
body = jast.Return(jast.InvokeStatic(self.name, funcname,
callargs))
cases.append(
[jast.IntegerConstant(funcid),
jast.FreeBlock([body])])
defaultCase = jast.FreeBlock([jast.Return(jast.Null)])
switch = jast.Block(
[jast.Switch(jast.Identifier('index'), cases, defaultCase)])
meths.insert(
0,
jast.Method("call_function", "public",
["PyObject", ("int", "index"),
("PyFrame", "frame")], switch))
self.superclass = "PyFunctionTable"
return meths
def nullReturn(ret):
if ret == Void.TYPE:
return jast.Return()
if Class.isPrimitive(ret):
if ret.__name__ == 'boolean':
value = jast. False
elif ret.__name__ == 'char':
value = jast.CharacterConstant('x')
else:
value = jast.IntegerConstant(0)
else:
value = jast.Null
return jast.Return(value)
def clean(node):
if not hasattr(node, 'exits'):
print node
if node.exits():
return node
return jast.Block(
[node, jast.Return(jast.GetStaticAttribute('Py', 'None'))])
def callSuperMethod(self, name, supername, access, ret, sig, throws=[]):
if self.issuperproxy:
return
self.supermethods[supername] = supername
args = [typeName(ret)]
argids = []
throws = filterThrows(throws)
for c in sig:
if isinstance(c, TupleType):
argname = c[1]
c = c[0]
else:
argname = "arg" + str(len(argids))
args.append((typeName(c), argname))
argid = jast.Identifier(argname)
argids.append(argid)
supercall = jast.Invoke(jast.Identifier("super"), name, argids)
if ret != Void.TYPE:
supercall = jast.Return(supercall)
supermethod = jast.Method(supername,
jast.Modifier.ModifierString(access), args,
jast.Block([supercall]), throws)
self.statements.append(supermethod)
return
def addPyProxyInterface(self):
self.statements.append(
jast.Declare('private PyInstance', jast.Identifier('__proxy')))
code = jast.Set(jast.Identifier("__proxy"), jast.Identifier("inst"))
code = jast.Block([code])
self.statements.append(
jast.Method("_setPyInstance", "public",
["void", ("PyInstance", "inst")], code))
code = jast.Block([jast.Return(jast.Identifier("__proxy"))])
self.statements.append(
jast.Method("_getPyInstance", "public", ["PyInstance"], code))
self.statements.append(
jast.Declare('private PySystemState',
jast.Identifier('__sysstate')))
code = jast.Set(jast.Identifier("__sysstate"), jast.Identifier("inst"))
code = jast.Block([code])
self.statements.append(
jast.Method("_setPySystemState", "public",
["void", ("PySystemState", "inst")], code))
code = jast.Block([jast.Return(jast.Identifier("__sysstate"))])
self.statements.append(
jast.Method("_getPySystemState", "public", ["PySystemState"],
code))
frozen = self.module.getFrozen()
this = jast.Identifier("this")
initargs = [
this,
jast.StringConstant(self.modname),
jast.StringConstant(self.name),
jast.Identifier("args"), self.packages, self.properties, frozen,
jast.StringArray(self.modules)
]
initproxy = jast.InvokeStatic("Py", "initProxy", initargs)
code = jast.Block([initproxy])
self.statements.append(
jast.Method("__initProxy__", "public",
["void", ("Object[]", "args")], code))
self.interfaces.append(org.python.core.PyProxy)
def makeCode(self):
comp = self.factory.getCompiler(self.def_compiler,
SrcGenCompiler.ClassFrame, self.scope,
self.name)
code = jast.Block([comp.parse(ast.Suite(self.body)),
jast.Return(jast.Invoke(comp.frame.frame,
"getf_locals", []))])
self.frame = comp.frame
self.pycode = self.def_compiler.top_compiler.module.getCodeConstant(
self.name, code, comp.frame)
return self.pycode
def dumpMain(self):
if not hasattr(self, 'mainCode'):
return []
meths = []
self.interfaces.append("PyRunnable")
getmain = jast.Block([
jast.If(jast.Operation("==", self.mainCode, jast.Null),
jast.InvokeStatic(self.name, "initConstants", [])),
jast.Return(self.mainCode)
])
meths.append(jast.Method("getMain", "public", ["PyCode"], getmain))
return meths
def makeReturn(code, ret):
if ret == Void.TYPE:
return code
if Class.isPrimitive(ret):
r = jast.InvokeStatic("Py", "py2" + ret.__name__, [code])
else:
typname = typeName(ret)
r = jast.InvokeStatic(
"Py", "tojava",
[code, jast.GetStaticAttribute(typname, 'class')])
r = jast.Cast(typname, r)
return jast.Return(r)
def visitListComp(self, node):
# Since this code generated here is placed in its own
# java method, we need a new set of temp vrbls.
oldtmps = self.frame.temporaries
self.frame.temporaries = {}
lst = self.factory.makeList([])
lsttmp, lstcode = self.makeTemp(lst)
append = self.factory.makePyObject(jast.Invoke(lsttmp.asAny(),
"__getattr__", [jast.StringConstant("append")]))
appendtmp, appendcode = self.makeTemp(append)
self.list_comprehension_count += 1
tmp_append = "_[%d]" % self.list_comprehension_count
#tmp_append = "_[1]"
n = ast.Expr(ast.Call(ast.Name(tmp_append, ast.Name.Load, node),
[ node.elt ], [], None, None, node),
node);
for lc in node.generators[::-1]:
for ifs in lc.ifs[::-1]:
n = ast.If(ifs, [ n ], None, ifs);
n = ast.For(lc.target, lc.iter, [ n ], None, lc);
#visit(new Delete(new exprType[] { new Name(tmp_append, Name.Del) }));
stmts = [ lstcode ]
stmts.append(self.set_name(tmp_append, append))
#stmts.append(appendcode)
stmts.append(self.visit(n))
stmts.append(jast.Return(lsttmp.asAny()))
decs = self.frame.getDeclarations()
if len(decs) != 0:
stmts.insert(0, decs)
idx = self.module.addFunctionCode("__listcomprehension",
jast.Block(stmts))
self.freeTemp(lsttmp)
self.freeTemp(appendtmp)
self.frame.temporaries = oldtmps
return self.factory.makePyObject(
jast.InvokeLocal("__listcomprehension$%d" % (idx+1),
[jast.Identifier("frame")]))
def list_comprehension(self, node):
# Since this code generated here is placed in its own
# java method, we need a new set of temp vrbls.
oldtmps = self.frame.temporaries
self.frame.temporaries = {}
expr = node.getChild(0)
suite = node.getChild(1)
lst = self.factory.makeList([])
lsttmp, lstcode = self.makeTemp(lst)
append = self.factory.makePyObject(
jast.Invoke(lsttmp.asAny(), "__getattr__",
[jast.StringConstant("append")]))
appendtmp, appendcode = self.makeTemp(append)
self.listComprehensionStack.append((appendtmp, expr))
stmts = [lstcode, appendcode]
stmts.append(self.visit(suite))
stmts.append(jast.Return(lsttmp.asAny()))
decs = self.frame.getDeclarations()
if len(decs) != 0:
stmts.insert(0, decs)
self.listComprehensionStack.pop(-1)
idx = self.module.addFunctionCode("__listcomprehension",
jast.Block(stmts))
self.freeTemp(lsttmp)
self.freeTemp(appendtmp)
self.frame.temporaries = oldtmps
return self.factory.makePyObject(
jast.InvokeLocal("__listcomprehension$%d" % (idx + 1),
[jast.Identifier("frame")]))
def callMethod(self, name, access, ret, sig, throws=[], dosuper=1):
args = [typeName(ret)]
argids = []
objects = []
throws = filterThrows(throws)
for c in sig:
if isinstance(c, TupleType):
argname = c[1]
c = c[0]
else:
argname = "arg" + str(len(argids))
args.append((typeName(c), argname))
argid = jast.Identifier(argname)
argids.append(argid)
objects.append(makeObject(argid, c))
objects = jast.FilledArray("Object", objects)
stmts = []
this = jast.Identifier("this")
if isinstance(access, IntType) and isAbstract(access):
dosuper = 0
access = access & ~ABSTRACT
if not dosuper and not self.isAdapter:
getattr = jast.InvokeStatic("Py", "jgetattr",
[this, jast.StringConstant(name)])
else:
getattr = jast.InvokeStatic("Py", "jfindattr",
[this, jast.StringConstant(name)])
inst = jast.Identifier("inst")
if len(throws) == 0:
jcall = "_jcall"
else:
jcall = "_jcallexc"
jcall = makeReturn(jast.Invoke(inst, jcall, [objects]), ret)
jcall = wrapThrows(jcall, throws, ret)
if dosuper:
supercall = jast.Invoke(jast.Identifier("super"), name, argids)
if ret != Void.TYPE:
supercall = jast.Return(supercall)
supermethod = None
if not self.issuperproxy and name not in self.getCandSupermethods(
incl=0):
supermethod = jast.Method("super__" + name,
jast.Modifier.ModifierString(access),
args, jast.Block([supercall]),
throws)
self.supermethods["super__" + name] = "super__" + name
else:
if self.isAdapter:
supercall = nullReturn(ret)
else:
supercall = None
supermethod = None
if not dosuper and not self.isAdapter:
test = jcall
else:
test = jast.If(jast.Operation("!=", inst, jast.Null), jcall,
supercall)
code = jast.Block([jast.Declare("PyObject", inst, getattr), test])
meth = jast.Method(name, jast.Modifier.ModifierString(access), args,
code, throws)
if supermethod is not None:
self.statements.append(supermethod)
self.statements.append(meth)
def visitReturn(self, node):
if node.value is None:
return jast.Return(jast.GetStaticAttribute("Py", "None"))
else:
return jast.Return(self.visit(node.value).asAny())
def return_stmt(self, value=None):
if value is None:
return jast.Return(jast.GetStaticAttribute("Py", "None"))
else:
return jast.Return(self.visit(value).asAny())
