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authorRemko Tronçon <git@el-tramo.be>2009-08-11 17:08:29 (GMT)
committerRemko Tronçon <git@el-tramo.be>2009-08-11 17:08:29 (GMT)
commitd07a31cc74304b942a320f5d17330e83c17e152a (patch)
tree277f31173e123bb051ca0b6409c946f8b828374c /3rdParty/SCons/scons-local/SCons/Tool/JavaCommon.py
parentf317f69ed3084114684e99670e0a69dde48e69fb (diff)
downloadswift-contrib-d07a31cc74304b942a320f5d17330e83c17e152a.zip
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Bundle SCons.
Diffstat (limited to '3rdParty/SCons/scons-local/SCons/Tool/JavaCommon.py')
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diff --git a/3rdParty/SCons/scons-local/SCons/Tool/JavaCommon.py b/3rdParty/SCons/scons-local/SCons/Tool/JavaCommon.py
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+"""SCons.Tool.JavaCommon
+
+Stuff for processing Java.
+
+"""
+
+#
+# Copyright (c) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 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 4043 2009/02/23 09:06:45 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)
+
+# Local Variables:
+# tab-width:4
+# indent-tabs-mode:nil
+# End:
+# vim: set expandtab tabstop=4 shiftwidth=4: