def _DictForPath(path, use_proxy_hash=False):
with open(path) as f:
contents = jni_generator.RemoveComments(f.read())
if '@JniIgnoreNatives' in contents:
return None
fully_qualified_class = jni_generator.ExtractFullyQualifiedJavaClassName(
path, contents)
natives = jni_generator.ExtractNatives(contents, 'long')
natives += jni_generator.ProxyHelpers.ExtractStaticProxyNatives(
fully_qualified_class=fully_qualified_class,
contents=contents,
ptr_type='long',
use_hash=use_proxy_hash)
if len(natives) == 0:
return None
namespace = jni_generator.ExtractJNINamespace(contents)
jni_params = jni_generator.JniParams(fully_qualified_class)
jni_params.ExtractImportsAndInnerClasses(contents)
is_main_dex = jni_generator.IsMainDexJavaClass(contents)
header_generator = HeaderGenerator(namespace, fully_qualified_class,
natives, jni_params, is_main_dex,
use_proxy_hash)
return header_generator.Generate()
def testFullyQualifiedClassName(self):
contents = """
// Copyright (c) 2010 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
package org.chromium.content.browser;
import org.chromium.base.BuildInfo;
"""
self.assertEquals('org/chromium/content/browser/Foo',
jni_generator.ExtractFullyQualifiedJavaClassName(
'org/chromium/content/browser/Foo.java', contents))
self.assertEquals('org/chromium/content/browser/Foo',
jni_generator.ExtractFullyQualifiedJavaClassName(
'frameworks/Foo.java', contents))
self.assertRaises(SyntaxError,
jni_generator.ExtractFullyQualifiedJavaClassName,
'com/foo/Bar', 'no PACKAGE line')
def _DictForPath(path):
with open(path) as f:
contents = jni_generator.RemoveComments(f.read())
natives = jni_generator.ExtractNatives(contents, 'long')
if len(natives) == 0:
return None
namespace = jni_generator.ExtractJNINamespace(contents)
fully_qualified_class = jni_generator.ExtractFullyQualifiedJavaClassName(
path, contents)
jni_params = jni_generator.JniParams(fully_qualified_class)
jni_params.ExtractImportsAndInnerClasses(contents)
main_dex = jni_generator.IsMainDexJavaClass(contents)
header_generator = HeaderGenerator(namespace, fully_qualified_class,
natives, jni_params, main_dex)
return header_generator.Generate()
def GenerateJNIHeader(java_file_paths, output_file, args):
"""Generate a header file including two registration functions.
Forward declares all JNI registration functions created by jni_generator.py.
Calls the functions in RegisterMainDexNatives() if they are main dex. And
calls them in RegisterNonMainDexNatives() if they are non-main dex.
Args:
java_file_paths: A list of java file paths.
output_file: A relative path to output file.
args: All input arguments.
"""
registration_dict = {}
# Sort the file list to make sure the order is deterministic.
java_file_paths.sort()
for path in java_file_paths:
if path in args.no_register_java:
continue
with open(path) as f:
contents = jni_generator.RemoveComments(f.read())
natives = jni_generator.ExtractNatives(contents, 'long')
if len(natives) == 0:
continue
namespace = jni_generator.ExtractJNINamespace(contents)
fully_qualified_class = jni_generator.ExtractFullyQualifiedJavaClassName(
path, contents)
jni_params = jni_generator.JniParams(fully_qualified_class)
jni_params.ExtractImportsAndInnerClasses(contents)
main_dex = jni_generator.IsMainDexJavaClass(contents)
header_generator = HeaderGenerator(namespace, fully_qualified_class,
natives, jni_params,
registration_dict, main_dex)
header_generator.AddContent()
header_content = CreateFromDict(registration_dict)
if output_file:
jni_generator.WriteOutput(output_file, header_content)
else:
print header_content
def GenerateJNIHeader(java_file_paths, output_file, args):
"""Generate a header file including two registration functions.
Forward declares all JNI registration functions created by jni_generator.py.
Calls the functions in RegisterMainDexNatives() if they are main dex. And
calls them in RegisterNonMainDexNatives() if they are non-main dex.
Args:
java_file_paths: A list of java file paths.
output_file: A relative path to output file.
args: All input arguments.
"""
registration_dict = {
'FORWARD_DECLARATIONS': '',
'REGISTER_MAIN_DEX_NATIVES': '',
'REGISTER_NON_MAIN_DEX_NATIVES': ''
}
# Sort the file list to make sure the order is deterministic.
java_file_paths.sort()
for path in java_file_paths:
if path in args.no_register_java:
continue
with open(path) as f:
contents = f.read()
natives = jni_generator.ExtractNatives(contents, 'long')
if len(natives) == 0:
continue
fully_qualified_class = jni_generator.ExtractFullyQualifiedJavaClassName(
path, contents)
main_dex = jni_generator.IsMainDexJavaClass(contents)
header_generator = HeaderGenerator(
fully_qualified_class, registration_dict, main_dex)
registration_dict = header_generator.GetContent()
header_content = CreateFromDict(registration_dict)
if output_file:
jni_generator.WriteOutput(output_file, header_content)
else:
print header_content
def convert_file_to_proxy_natives(java_file_name, dry=False, verbose=True):
if not os.path.isfile(java_file_name):
if verbose:
print('%s does not exist', java_file_name)
return
with open(java_file_name, 'r') as f:
contents = f.read()
no_comment_content = jni_generator.RemoveComments(contents)
natives = jni_generator.ExtractNatives(no_comment_content, 'long')
static_natives = [n for n in natives if n.static]
if not static_natives:
if verbose:
print('%s has no static natives.', java_file_name)
return
contents = add_chromium_import_to_java_file(contents, JNI_IMPORT_STRING)
# Extract comments and annotations above native methods.
native_map = {}
for itr in re.finditer(_NATIVES_REGEX, contents):
n_dict = {}
n_dict['annotations'] = itr.group('annotations').strip()
n_dict['comments'] = itr.group('comments').strip()
n_dict['params'] = itr.group('params').strip()
native_map[itr.group('name')] = n_dict
# Using static natives here ensures all the methods that are picked up by
# the JNI generator are also caught by our own regex.
methods = []
for n in static_natives:
new_name = n.name[0].lower() + n.name[1:]
n_dict = native_map['native' + n.name]
params = n_dict['params']
comments = n_dict['comments']
annotations = n_dict['annotations']
methods.append(
build_method_declaration(n.return_type, new_name, params,
annotations, comments))
fully_qualified_class = jni_generator.ExtractFullyQualifiedJavaClassName(
java_file_name, contents)
class_name = fully_qualified_class.split('/')[-1]
jni_class_name = class_name + 'Jni'
# Remove all old declarations.
for n in static_natives:
pattern = _NATIVES_REGEX
contents = re.sub(pattern, '', contents)
# Replace occurences with new signature.
for n in static_natives:
# Okay not to match first (.
# Since even if natives share a prefix, the replacement is the same.
# E.g. if nativeFoo() and nativeFooBar() are both statics
# and in nativeFooBar() we replace nativeFoo -> AJni.get().foo
# the result is the same as replacing nativeFooBar() -> AJni.get().fooBar
pattern = r'native%s' % n.name
lower_name = n.name[0].lower() + n.name[1:]
contents = re.sub(pattern,
'%s.get().%s' % (jni_class_name, lower_name),
contents)
# Build and insert the @NativeMethods interface.
interface = _JNI_INTERFACE_TEMPLATES.substitute({
'INTERFACE_NAME': 'Natives',
'METHODS': ''.join(methods)
})
# Insert the interface at the bottom of the top level class.
# Most of the time this will be before the last }.
insertion_point = contents.rfind('}')
contents = contents[:insertion_point] + '\n' + interface + contents[
insertion_point:]
if not dry:
with open(java_file_name, 'w') as f:
f.write(contents)
else:
print(contents)
return contents
def convert_nonstatic_to_static(java_file_name, dry=False, verbose=True):
if java_file_name is None:
return
if not os.path.isfile(java_file_name):
if verbose:
print('%s does not exist', java_file_name)
return
with open(java_file_name, 'r') as f:
contents = f.read()
no_comment_content = jni_generator.RemoveComments(contents)
parsed_natives = jni_generator.ExtractNatives(no_comment_content, 'long')
non_static_natives = [n for n in parsed_natives if not n.static]
if not non_static_natives:
if verbose:
print('no natives found')
return
class_name = jni_generator.ExtractFullyQualifiedJavaClassName(
java_file_name, no_comment_content).split('/')[-1]
replace_patterns = []
should_add_comma = []
new_contents = contents
# 1. Change non-static -> static.
insertion_offset = 0
matches = []
for match in _NON_STATIC_NATIVES_REGEX.finditer(contents):
if not 'static' in match.group('qualifiers'):
matches.append(match)
# Insert static as a keyword.
qual_end = match.end('qualifiers') + insertion_offset
insert_str = ' static '
new_contents = new_contents[:qual_end] + insert_str + new_contents[
qual_end:]
insertion_offset += len(insert_str)
# Insert an object param.
start = insertion_offset + match.end('params')
insert_str = '%s caller' % class_name
if match.group('params'):
insert_str = ', ' + insert_str
# Match lines that don't have a native keyword.
replace_patterns.append(r'(^\s*' + match.group('name') +
r'\(.*?(?=\)))')
replace_patterns.append(r'(return ' + match.group('name') +
r'\(.*?(?=\)))')
replace_patterns.append(r'([\:\)\(\+\*\?\&\|,\.\-\=\!\/][ \t]*' +
match.group('name') + r'\(.*?(?=\)))')
add_comma = bool(match.group('params'))
should_add_comma.extend([add_comma] * 3)
new_contents = new_contents[:start] + insert_str + new_contents[
start:]
insertion_offset += len(insert_str)
assert len(matches) == len(non_static_natives), (
'Regex missed a native '
'method that was found by '
'the jni_generator.')
# 2. Add a this param to all calls.
for i, r in enumerate(replace_patterns):
if should_add_comma[i]:
new_contents = re.sub(r,
'\g<1>, %s.this' % class_name,
new_contents,
flags=re.MULTILINE)
else:
new_contents = re.sub(r,
'\g<1>%s.this' % class_name,
new_contents,
flags=re.MULTILINE)
if dry:
print(new_contents)
else:
with open(java_file_name, 'w') as f:
f.write(new_contents)
def convert_nonstatic_to_static(java_file_name,
skip_caller=False,
dry=False,
verbose=True):
if java_file_name is None:
return
if not os.path.isfile(java_file_name):
if verbose:
print('%s does not exist', java_file_name)
return
with open(java_file_name, 'r') as f:
contents = f.read()
no_comment_content = jni_generator.RemoveComments(contents)
parsed_natives = jni_generator.ExtractNatives(no_comment_content, 'long')
non_static_natives = [n for n in parsed_natives if not n.static]
if not non_static_natives:
if verbose:
print('no natives found')
return
class_name = jni_generator.ExtractFullyQualifiedJavaClassName(
java_file_name, no_comment_content).split('/')[-1]
# For fixing call sites.
replace_patterns = []
should_append_comma = []
should_prepend_comma = []
new_contents = contents
# 1. Change non-static -> static.
insertion_offset = 0
matches = []
for match in _NON_STATIC_NATIVES_REGEX.finditer(contents):
if not 'static' in match.group('qualifiers'):
matches.append(match)
# Insert static as a keyword.
qual_end = match.end('qualifiers') + insertion_offset
insert_str = ' static '
new_contents = new_contents[:qual_end] + insert_str + new_contents[
qual_end:]
insertion_offset += len(insert_str)
if skip_caller:
continue
# Insert an object param.
insert_str = '%s caller' % class_name
# No params.
if not match.group('params'):
start = insertion_offset + match.start('params')
append_comma = False
prepend_comma = False
# One or more params.
else:
# Has mNativePtr.
if _NATIVE_PTR_REGEX.match(match.group('params')):
# Only 1 param, append to end of params.
if match.group('params').count(',') == 0:
start = insertion_offset + match.end('params')
append_comma = False
prepend_comma = True
# Multiple params, insert after first param.
else:
comma_pos = match.group('params').find(',')
start = insertion_offset + match.start(
'params') + comma_pos + 1
append_comma = True
prepend_comma = False
else:
# No mNativePtr, insert as first param.
start = insertion_offset + match.start('params')
append_comma = True
prepend_comma = False
if prepend_comma:
insert_str = ', ' + insert_str
if append_comma:
insert_str = insert_str + ', '
new_contents = new_contents[:start] + insert_str + new_contents[
start:]
# Match lines that don't have a native keyword.
native_match = r'\((\s*?(([ms]Native\w+)|([ms]\w+Android(Ptr)?)),?)?)'
replace_patterns.append(r'(^\s*' + match.group('name') +
native_match)
replace_patterns.append(r'(return ' + match.group('name') +
native_match)
replace_patterns.append(r'([\:\)\(\+\*\?\&\|,\.\-\=\!\/][ \t]*' +
match.group('name') + native_match)
should_append_comma.extend([append_comma] * 3)
should_prepend_comma.extend([prepend_comma] * 3)
insertion_offset += len(insert_str)
assert len(matches) == len(non_static_natives), (
'Regex missed a native '
'method that was found by '
'the jni_generator.')
# 2. Add a this param to all calls.
for i, r in enumerate(replace_patterns):
prepend_comma = ', ' if should_prepend_comma[i] else ''
append_comma = ', ' if should_append_comma[i] else ''
repl_str = '\g<1>' + prepend_comma + ' %s.this' + append_comma
new_contents = re.sub(r,
repl_str % class_name,
new_contents,
flags=re.MULTILINE)
if dry:
print(new_contents)
else:
with open(java_file_name, 'w') as f:
f.write(new_contents)
