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api_converter.py
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api_converter.py
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class Api(object):
object_class = ""
method_name = ""
params_list = []
return_class = ""
is_static = False
jni_signature = ""
__source_to_base_type_map = {
"byte": "B",
"char": "C",
"double": "D",
"float": "F",
"int": "I",
"long": "J",
"short": "S",
"boolean": "Z",
"void": "V"
}
__base_to_source_type_map = {
"B": "byte",
"C": "char",
"D": "double",
"F": "float",
"I": "int",
"J": "long",
"S": "short",
"Z": "boolean",
"V": "void"
}
__source_to_object_type_map = {
"byte": "Byte",
"char": "Character",
"double": "Double",
"float": "Float",
"int": "Integer",
"long": "Long",
"short": "Short",
"boolean": "Boolean"
}
def degenerify(return_class):
# // Generic types contain space in their name, e.g. "<T> T".
if " " in return_class:
i = 0
while return_class[1] != ' ':
i += 1
degenerified = return_class[i:] # Will return only "T" in the above - given example.
else:
degenerified = return_class # No generics, return type as- is.
# This conversion is necessary to avoid error of kind
# "error: incompatible types: Object cannot be converted to boolean"
if degenerified in __source_to_object_type_map:
degenerified = __source_to_object_type_map[degenerified]
return degenerified
def __jni_to_source_code(type, replace_dollars_with_dots=False):
out = ""
arrays_count = type.count("[")
type_prim = type.replace("[", "")
if type_prim.startswith("L"):
assert type_prim.endswith(";")
type_prim = type_prim[1:-1].replace("/", ".")
if replace_dollars_with_dots:
type_prim = type_prim.replace("\$", ".")
out += type_prim
else:
if type_prim.endswith(";"):
type_prim = type_prim[:-1]
assert len(type_prim) == 1
base_type = filter(lambda x: __base_to_source_type_map.has_key(x), type_prim)
assert len(base_type) > 0
out += __base_to_source_type_map[base_type]
out += "[]" * arrays_count
return out
def __match_class_field_descriptors(class_field_descriptors):
# Notation reference: http://docs.oracle.com/javase/specs/jvms/se7/html/jvms-4.html#jvms-4.3.2
# (?: is a non-capturing group. See http://docs.oracle.com/javase/7/docs/api/java/util/regex/Pattern.html#special
input_data = class_field_descriptors
out = []
while len(input_data) > 0:
if input_data[0] in __base_to_source_type_map:
source_param = __base_to_source_type_map[input_data[0]]
start_pos = 1
else:
jni_param = input_data.split(";")[0] + ";"
source_param = __jni_to_source_code(jni_param)
start_pos = len(jni_param)
input_data = input_data[start_pos:]
out.append(source_param.replace("$", "."))
return out
def from_descriptor(descriptor):
#print(descriptor)
object_class = descriptor.split("->")[0]
object_class = __jni_to_source_code(object_class) # e.g. android.content.ContentProviderClient
if " " in descriptor:
method_header, staticness = descriptor.split(" ")
else:
method_header = descriptor
staticness = ""
assert staticness in ["static", "instance", ""]
is_static = staticness == "static"
""" This line ensures that if there are no params, the match below will match a one-space string to methodParams,
instead of skipping it and matching returnClass to methodParams.
The ApiLogcatMessage.matchClassFieldDescriptors then will properly handle the " " methodParams."""
method_header = method_header.replace("()", "( )")
# methodName: e.g. update
# returnClass: e.g. Ljava/lang/Object;
method_name = method_header.split("(")[0]
method_params = method_header.split("(")[1].split(")")[0]
return_class = method_header.split("(")[1].split(")")[1]
method_name = method_name.split("->")[1]
if method_params == " ":
method_params = ""
params_list = __match_class_field_descriptors(method_params)
return_class = __jni_to_source_code(return_class)
api = Api()
api.object_class = object_class
api.method_name = method_name
api.params_list = params_list
api.return_class = return_class
api.is_static = is_static
api.jni_signature = descriptor
print "%s->%s(%s)" % (object_class, method_name, str(params_list).replace("[", "").replace("]", "").replace("'", "").replace(" ", ""))
return api