mirror of https://github.com/lukechilds/node.git
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
317 lines
12 KiB
317 lines
12 KiB
"""SCons.Tool.JavaCommon
|
|
|
|
Stuff for processing Java.
|
|
|
|
"""
|
|
|
|
#
|
|
# Copyright (c) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 The SCons Foundation
|
|
#
|
|
# Permission is hereby granted, free of charge, to any person obtaining
|
|
# a copy of this software and associated documentation files (the
|
|
# "Software"), to deal in the Software without restriction, including
|
|
# without limitation the rights to use, copy, modify, merge, publish,
|
|
# distribute, sublicense, and/or sell copies of the Software, and to
|
|
# permit persons to whom the Software is furnished to do so, subject to
|
|
# the following conditions:
|
|
#
|
|
# The above copyright notice and this permission notice shall be included
|
|
# in all copies or substantial portions of the Software.
|
|
#
|
|
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
|
|
# KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
|
|
# WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
|
# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
|
|
# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
|
|
# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
|
|
# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
|
|
#
|
|
|
|
__revision__ = "src/engine/SCons/Tool/JavaCommon.py 3842 2008/12/20 22:59:52 scons"
|
|
|
|
import os
|
|
import os.path
|
|
import re
|
|
import string
|
|
|
|
java_parsing = 1
|
|
|
|
default_java_version = '1.4'
|
|
|
|
if java_parsing:
|
|
# Parse Java files for class names.
|
|
#
|
|
# This is a really cool parser from Charles Crain
|
|
# that finds appropriate class names in Java source.
|
|
|
|
# A regular expression that will find, in a java file:
|
|
# newlines;
|
|
# double-backslashes;
|
|
# a single-line comment "//";
|
|
# single or double quotes preceeded by a backslash;
|
|
# single quotes, double quotes, open or close braces, semi-colons,
|
|
# periods, open or close parentheses;
|
|
# floating-point numbers;
|
|
# any alphanumeric token (keyword, class name, specifier);
|
|
# any alphanumeric token surrounded by angle brackets (generics);
|
|
# the multi-line comment begin and end tokens /* and */;
|
|
# array declarations "[]".
|
|
_reToken = re.compile(r'(\n|\\\\|//|\\[\'"]|[\'"\{\}\;\.\(\)]|' +
|
|
r'\d*\.\d*|[A-Za-z_][\w\$\.]*|<[A-Za-z_]\w+>|' +
|
|
r'/\*|\*/|\[\])')
|
|
|
|
class OuterState:
|
|
"""The initial state for parsing a Java file for classes,
|
|
interfaces, and anonymous inner classes."""
|
|
def __init__(self, version=default_java_version):
|
|
|
|
if not version in ('1.1', '1.2', '1.3','1.4', '1.5', '1.6'):
|
|
msg = "Java version %s not supported" % version
|
|
raise NotImplementedError, msg
|
|
|
|
self.version = version
|
|
self.listClasses = []
|
|
self.listOutputs = []
|
|
self.stackBrackets = []
|
|
self.brackets = 0
|
|
self.nextAnon = 1
|
|
self.localClasses = []
|
|
self.stackAnonClassBrackets = []
|
|
self.anonStacksStack = [[0]]
|
|
self.package = None
|
|
|
|
def trace(self):
|
|
pass
|
|
|
|
def __getClassState(self):
|
|
try:
|
|
return self.classState
|
|
except AttributeError:
|
|
ret = ClassState(self)
|
|
self.classState = ret
|
|
return ret
|
|
|
|
def __getPackageState(self):
|
|
try:
|
|
return self.packageState
|
|
except AttributeError:
|
|
ret = PackageState(self)
|
|
self.packageState = ret
|
|
return ret
|
|
|
|
def __getAnonClassState(self):
|
|
try:
|
|
return self.anonState
|
|
except AttributeError:
|
|
self.outer_state = self
|
|
ret = SkipState(1, AnonClassState(self))
|
|
self.anonState = ret
|
|
return ret
|
|
|
|
def __getSkipState(self):
|
|
try:
|
|
return self.skipState
|
|
except AttributeError:
|
|
ret = SkipState(1, self)
|
|
self.skipState = ret
|
|
return ret
|
|
|
|
def __getAnonStack(self):
|
|
return self.anonStacksStack[-1]
|
|
|
|
def openBracket(self):
|
|
self.brackets = self.brackets + 1
|
|
|
|
def closeBracket(self):
|
|
self.brackets = self.brackets - 1
|
|
if len(self.stackBrackets) and \
|
|
self.brackets == self.stackBrackets[-1]:
|
|
self.listOutputs.append(string.join(self.listClasses, '$'))
|
|
self.localClasses.pop()
|
|
self.listClasses.pop()
|
|
self.anonStacksStack.pop()
|
|
self.stackBrackets.pop()
|
|
if len(self.stackAnonClassBrackets) and \
|
|
self.brackets == self.stackAnonClassBrackets[-1]:
|
|
self.__getAnonStack().pop()
|
|
self.stackAnonClassBrackets.pop()
|
|
|
|
def parseToken(self, token):
|
|
if token[:2] == '//':
|
|
return IgnoreState('\n', self)
|
|
elif token == '/*':
|
|
return IgnoreState('*/', self)
|
|
elif token == '{':
|
|
self.openBracket()
|
|
elif token == '}':
|
|
self.closeBracket()
|
|
elif token in [ '"', "'" ]:
|
|
return IgnoreState(token, self)
|
|
elif token == "new":
|
|
# anonymous inner class
|
|
if len(self.listClasses) > 0:
|
|
return self.__getAnonClassState()
|
|
return self.__getSkipState() # Skip the class name
|
|
elif token in ['class', 'interface', 'enum']:
|
|
if len(self.listClasses) == 0:
|
|
self.nextAnon = 1
|
|
self.stackBrackets.append(self.brackets)
|
|
return self.__getClassState()
|
|
elif token == 'package':
|
|
return self.__getPackageState()
|
|
elif token == '.':
|
|
# Skip the attribute, it might be named "class", in which
|
|
# case we don't want to treat the following token as
|
|
# an inner class name...
|
|
return self.__getSkipState()
|
|
return self
|
|
|
|
def addAnonClass(self):
|
|
"""Add an anonymous inner class"""
|
|
if self.version in ('1.1', '1.2', '1.3', '1.4'):
|
|
clazz = self.listClasses[0]
|
|
self.listOutputs.append('%s$%d' % (clazz, self.nextAnon))
|
|
elif self.version in ('1.5', '1.6'):
|
|
self.stackAnonClassBrackets.append(self.brackets)
|
|
className = []
|
|
className.extend(self.listClasses)
|
|
self.__getAnonStack()[-1] = self.__getAnonStack()[-1] + 1
|
|
for anon in self.__getAnonStack():
|
|
className.append(str(anon))
|
|
self.listOutputs.append(string.join(className, '$'))
|
|
|
|
self.nextAnon = self.nextAnon + 1
|
|
self.__getAnonStack().append(0)
|
|
|
|
def setPackage(self, package):
|
|
self.package = package
|
|
|
|
class AnonClassState:
|
|
"""A state that looks for anonymous inner classes."""
|
|
def __init__(self, old_state):
|
|
# outer_state is always an instance of OuterState
|
|
self.outer_state = old_state.outer_state
|
|
self.old_state = old_state
|
|
self.brace_level = 0
|
|
def parseToken(self, token):
|
|
# This is an anonymous class if and only if the next
|
|
# non-whitespace token is a bracket. Everything between
|
|
# braces should be parsed as normal java code.
|
|
if token[:2] == '//':
|
|
return IgnoreState('\n', self)
|
|
elif token == '/*':
|
|
return IgnoreState('*/', self)
|
|
elif token == '\n':
|
|
return self
|
|
elif token[0] == '<' and token[-1] == '>':
|
|
return self
|
|
elif token == '(':
|
|
self.brace_level = self.brace_level + 1
|
|
return self
|
|
if self.brace_level > 0:
|
|
if token == 'new':
|
|
# look further for anonymous inner class
|
|
return SkipState(1, AnonClassState(self))
|
|
elif token in [ '"', "'" ]:
|
|
return IgnoreState(token, self)
|
|
elif token == ')':
|
|
self.brace_level = self.brace_level - 1
|
|
return self
|
|
if token == '{':
|
|
self.outer_state.addAnonClass()
|
|
return self.old_state.parseToken(token)
|
|
|
|
class SkipState:
|
|
"""A state that will skip a specified number of tokens before
|
|
reverting to the previous state."""
|
|
def __init__(self, tokens_to_skip, old_state):
|
|
self.tokens_to_skip = tokens_to_skip
|
|
self.old_state = old_state
|
|
def parseToken(self, token):
|
|
self.tokens_to_skip = self.tokens_to_skip - 1
|
|
if self.tokens_to_skip < 1:
|
|
return self.old_state
|
|
return self
|
|
|
|
class ClassState:
|
|
"""A state we go into when we hit a class or interface keyword."""
|
|
def __init__(self, outer_state):
|
|
# outer_state is always an instance of OuterState
|
|
self.outer_state = outer_state
|
|
def parseToken(self, token):
|
|
# the next non-whitespace token should be the name of the class
|
|
if token == '\n':
|
|
return self
|
|
# If that's an inner class which is declared in a method, it
|
|
# requires an index prepended to the class-name, e.g.
|
|
# 'Foo$1Inner' (Tigris Issue 2087)
|
|
if self.outer_state.localClasses and \
|
|
self.outer_state.stackBrackets[-1] > \
|
|
self.outer_state.stackBrackets[-2]+1:
|
|
locals = self.outer_state.localClasses[-1]
|
|
try:
|
|
idx = locals[token]
|
|
locals[token] = locals[token]+1
|
|
except KeyError:
|
|
locals[token] = 1
|
|
token = str(locals[token]) + token
|
|
self.outer_state.localClasses.append({})
|
|
self.outer_state.listClasses.append(token)
|
|
self.outer_state.anonStacksStack.append([0])
|
|
return self.outer_state
|
|
|
|
class IgnoreState:
|
|
"""A state that will ignore all tokens until it gets to a
|
|
specified token."""
|
|
def __init__(self, ignore_until, old_state):
|
|
self.ignore_until = ignore_until
|
|
self.old_state = old_state
|
|
def parseToken(self, token):
|
|
if self.ignore_until == token:
|
|
return self.old_state
|
|
return self
|
|
|
|
class PackageState:
|
|
"""The state we enter when we encounter the package keyword.
|
|
We assume the next token will be the package name."""
|
|
def __init__(self, outer_state):
|
|
# outer_state is always an instance of OuterState
|
|
self.outer_state = outer_state
|
|
def parseToken(self, token):
|
|
self.outer_state.setPackage(token)
|
|
return self.outer_state
|
|
|
|
def parse_java_file(fn, version=default_java_version):
|
|
return parse_java(open(fn, 'r').read(), version)
|
|
|
|
def parse_java(contents, version=default_java_version, trace=None):
|
|
"""Parse a .java file and return a double of package directory,
|
|
plus a list of .class files that compiling that .java file will
|
|
produce"""
|
|
package = None
|
|
initial = OuterState(version)
|
|
currstate = initial
|
|
for token in _reToken.findall(contents):
|
|
# The regex produces a bunch of groups, but only one will
|
|
# have anything in it.
|
|
currstate = currstate.parseToken(token)
|
|
if trace: trace(token, currstate)
|
|
if initial.package:
|
|
package = string.replace(initial.package, '.', os.sep)
|
|
return (package, initial.listOutputs)
|
|
|
|
else:
|
|
# Don't actually parse Java files for class names.
|
|
#
|
|
# We might make this a configurable option in the future if
|
|
# Java-file parsing takes too long (although it shouldn't relative
|
|
# to how long the Java compiler itself seems to take...).
|
|
|
|
def parse_java_file(fn):
|
|
""" "Parse" a .java file.
|
|
|
|
This actually just splits the file name, so the assumption here
|
|
is that the file name matches the public class name, and that
|
|
the path to the file is the same as the package name.
|
|
"""
|
|
return os.path.split(file)
|
|
|