585 lines
21 KiB
Python
585 lines
21 KiB
Python
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# MIT License
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#
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# Copyright The SCons Foundation
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#
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# Permission is hereby granted, free of charge, to any person obtaining
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# a copy of this software and associated documentation files (the
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# "Software"), to deal in the Software without restriction, including
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# without limitation the rights to use, copy, modify, merge, publish,
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# distribute, sublicense, and/or sell copies of the Software, and to
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# permit persons to whom the Software is furnished to do so, subject to
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# the following conditions:
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#
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# The above copyright notice and this permission notice shall be included
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# in all copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
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# KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
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# WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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"""Common routines for processing Java. """
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import os
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import re
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import glob
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from pathlib import Path
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from typing import List
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java_parsing = True
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default_java_version = '1.4'
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# a switch for which jdk versions to use the Scope state for smarter
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# anonymous inner class parsing.
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scopeStateVersions = ('1.8',)
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# Glob patterns for use in finding where the JDK is.
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#
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# These are pairs, (*dir_glob, *version_dir_glob) depending on whether
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# a JDK version was requested or not.
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# For now only used for Windows, which doesn't install JDK in a
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# path that would be in env['ENV']['PATH']. The specific tool will
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# add the discovered path to this. Since Oracle changed the rules,
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# there are many possible vendors, we can't guess them all, but take a shot.
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java_win32_dir_glob = 'C:/Program Files*/*/*jdk*/bin'
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# On windows, since Java 9, there is a dash between 'jdk' and the version
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# string that wasn't there before. this glob should catch either way.
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java_win32_version_dir_glob = 'C:/Program Files*/*/*jdk*%s*/bin'
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# Glob patterns for use in finding where the JDK headers are.
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# These are pairs, *dir_glob used in the general case,
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# *version_dir_glob if matching only a specific version.
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java_macos_include_dir_glob = '/System/Library/Frameworks/JavaVM.framework/Headers/'
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java_macos_version_include_dir_glob = '/System/Library/Frameworks/JavaVM.framework/Versions/%s*/Headers/'
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java_linux_include_dirs_glob = [
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'/usr/lib/jvm/default-java/include',
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'/usr/lib/jvm/java-*/include',
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'/opt/oracle-jdk-bin-*/include',
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'/opt/openjdk-bin-*/include',
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'/usr/lib/openjdk-*/include',
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]
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# Need to match path like below (from Centos 7)
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# /usr/lib/jvm/java-1.8.0-openjdk-1.8.0.191.b12-0.el7_5.x86_64/include/
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java_linux_version_include_dirs_glob = [
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'/usr/lib/jvm/java-*-sun-%s*/include',
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'/usr/lib/jvm/java-%s*-openjdk*/include',
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'/usr/java/jdk%s*/include',
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]
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if java_parsing:
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# Parse Java files for class names.
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#
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# This is a really cool parser from Charles Crain
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# that finds appropriate class names in Java source.
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# A regular expression that will find, in a java file:
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# newlines;
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# double-backslashes;
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# a single-line comment "//";
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# single or double quotes preceeded by a backslash;
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# single quotes, double quotes, open or close braces, semi-colons,
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# periods, open or close parentheses;
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# floating-point numbers;
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# any alphanumeric token (keyword, class name, specifier);
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# any alphanumeric token surrounded by angle brackets (generics);
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# the multi-line comment begin and end tokens /* and */;
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# array declarations "[]".
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# Lambda function symbols: ->
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_reToken = re.compile(r'(\n|\\\\|//|\\[\'"]|[\'"{\};.()]|' +
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r'\d*\.\d*|[A-Za-z_][\w$.]*|<[A-Za-z_]\w+>|' +
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r'/\*|\*/|\[\]|->)')
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class OuterState:
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"""The initial state for parsing a Java file for classes,
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interfaces, and anonymous inner classes."""
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def __init__(self, version=default_java_version):
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if version not in (
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'1.1',
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'1.2',
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'1.3',
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'1.4',
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'1.5',
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'1.6',
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'1.7',
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'1.8',
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'5',
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'6',
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'9.0',
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'10.0',
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'11.0',
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'12.0',
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'13.0',
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'14.0',
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'15.0',
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'16.0',
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'17.0',
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):
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msg = "Java version %s not supported" % version
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raise NotImplementedError(msg)
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self.version = version
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self.listClasses = []
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self.listOutputs = []
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self.stackBrackets = []
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self.brackets = 0
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self.nextAnon = 1
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self.localClasses = []
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self.stackAnonClassBrackets = []
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self.anonStacksStack = [[0]]
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self.package = None
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def trace(self):
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pass
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def __getClassState(self):
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try:
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return self.classState
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except AttributeError:
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ret = ClassState(self)
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self.classState = ret
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return ret
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def __getPackageState(self):
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try:
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return self.packageState
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except AttributeError:
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ret = PackageState(self)
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self.packageState = ret
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return ret
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def __getAnonClassState(self):
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try:
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return self.anonState
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except AttributeError:
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self.outer_state = self
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ret = SkipState(1, AnonClassState(self))
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self.anonState = ret
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return ret
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def __getSkipState(self):
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try:
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return self.skipState
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except AttributeError:
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ret = SkipState(1, self)
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self.skipState = ret
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return ret
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def _getAnonStack(self):
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return self.anonStacksStack[-1]
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def openBracket(self):
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self.brackets = self.brackets + 1
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def closeBracket(self):
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self.brackets = self.brackets - 1
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if len(self.stackBrackets) and \
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self.brackets == self.stackBrackets[-1]:
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self.listOutputs.append('$'.join(self.listClasses))
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self.localClasses.pop()
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self.listClasses.pop()
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self.anonStacksStack.pop()
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self.stackBrackets.pop()
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if len(self.stackAnonClassBrackets) and \
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self.brackets == self.stackAnonClassBrackets[-1] and \
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self.version not in scopeStateVersions:
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self._getAnonStack().pop()
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self.stackAnonClassBrackets.pop()
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def parseToken(self, token):
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if token[:2] == '//':
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return IgnoreState('\n', self)
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elif token == '/*':
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return IgnoreState('*/', self)
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elif token == '{':
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self.openBracket()
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elif token == '}':
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self.closeBracket()
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elif token in ['"', "'"]:
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return IgnoreState(token, self)
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elif token == "new":
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# anonymous inner class
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if len(self.listClasses) > 0:
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return self.__getAnonClassState()
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return self.__getSkipState() # Skip the class name
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elif token in ['class', 'interface', 'enum']:
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if len(self.listClasses) == 0:
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self.nextAnon = 1
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self.stackBrackets.append(self.brackets)
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return self.__getClassState()
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elif token == 'package':
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return self.__getPackageState()
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elif token == '.':
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# Skip the attribute, it might be named "class", in which
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# case we don't want to treat the following token as
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# an inner class name...
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return self.__getSkipState()
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return self
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def addAnonClass(self):
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"""Add an anonymous inner class"""
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if self.version in ('1.1', '1.2', '1.3', '1.4'):
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clazz = self.listClasses[0]
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self.listOutputs.append('%s$%d' % (clazz, self.nextAnon))
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# TODO: shouldn't need to repeat versions here and in OuterState
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elif self.version in (
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'1.5',
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'1.6',
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'1.7',
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'1.8',
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'5',
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'6',
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'9.0',
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'10.0',
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'11.0',
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'12.0',
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'13.0',
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'14.0',
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'15.0',
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'16.0',
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'17.0',
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):
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self.stackAnonClassBrackets.append(self.brackets)
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className = []
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className.extend(self.listClasses)
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self._getAnonStack()[-1] = self._getAnonStack()[-1] + 1
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for anon in self._getAnonStack():
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className.append(str(anon))
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self.listOutputs.append('$'.join(className))
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self.nextAnon = self.nextAnon + 1
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self._getAnonStack().append(0)
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def setPackage(self, package):
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self.package = package
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class ScopeState:
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"""
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A state that parses code within a scope normally,
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within the confines of a scope.
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"""
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def __init__(self, old_state):
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self.outer_state = old_state.outer_state
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self.old_state = old_state
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self.brackets = 0
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def __getClassState(self):
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try:
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return self.classState
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except AttributeError:
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ret = ClassState(self)
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self.classState = ret
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return ret
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def __getAnonClassState(self):
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try:
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return self.anonState
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except AttributeError:
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ret = SkipState(1, AnonClassState(self))
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self.anonState = ret
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return ret
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def __getSkipState(self):
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try:
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return self.skipState
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except AttributeError:
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ret = SkipState(1, self)
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self.skipState = ret
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return ret
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def openBracket(self):
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self.brackets = self.brackets + 1
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def closeBracket(self):
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self.brackets = self.brackets - 1
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def parseToken(self, token):
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# if self.brackets == 0:
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# return self.old_state.parseToken(token)
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if token[:2] == '//':
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return IgnoreState('\n', self)
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elif token == '/*':
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return IgnoreState('*/', self)
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elif token == '{':
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self.openBracket()
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elif token == '}':
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self.closeBracket()
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if self.brackets == 0:
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self.outer_state._getAnonStack().pop()
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return self.old_state
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elif token in ['"', "'"]:
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return IgnoreState(token, self)
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elif token == "new":
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# anonymous inner class
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return self.__getAnonClassState()
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elif token == '.':
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# Skip the attribute, it might be named "class", in which
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# case we don't want to treat the following token as
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# an inner class name...
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return self.__getSkipState()
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return self
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class AnonClassState:
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"""A state that looks for anonymous inner classes."""
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def __init__(self, old_state):
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# outer_state is always an instance of OuterState
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self.outer_state = old_state.outer_state
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self.old_state = old_state
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self.brace_level = 0
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def parseToken(self, token):
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# This is an anonymous class if and only if the next
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# non-whitespace token is a bracket. Everything between
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# braces should be parsed as normal java code.
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if token[:2] == '//':
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return IgnoreState('\n', self)
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elif token == '/*':
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return IgnoreState('*/', self)
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elif token == '\n':
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return self
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elif token[0] == '<' and token[-1] == '>':
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return self
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elif token == '(':
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self.brace_level = self.brace_level + 1
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return self
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if self.brace_level > 0:
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if token == 'new':
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# look further for anonymous inner class
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return SkipState(1, AnonClassState(self))
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elif token in ['"', "'"]:
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return IgnoreState(token, self)
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elif token == ')':
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self.brace_level = self.brace_level - 1
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return self
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if token == '{':
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self.outer_state.addAnonClass()
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if self.outer_state.version in scopeStateVersions:
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return ScopeState(old_state=self.old_state).parseToken(token)
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return self.old_state.parseToken(token)
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class SkipState:
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"""A state that will skip a specified number of tokens before
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reverting to the previous state."""
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def __init__(self, tokens_to_skip, old_state):
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self.tokens_to_skip = tokens_to_skip
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self.old_state = old_state
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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'
|
||
|
|
# https://github.com/SCons/scons/issues/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):
|
||
|
|
with open(fn, 'r', encoding='utf-8') as f:
|
||
|
|
data = f.read()
|
||
|
|
return parse_java(data, 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 = initial.package.replace('.', 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(fn)
|
||
|
|
|
||
|
|
|
||
|
|
def get_java_install_dirs(platform, version=None) -> List[str]:
|
||
|
|
""" Find possible java jdk installation directories.
|
||
|
|
|
||
|
|
Returns a list for use as `default_paths` when looking up actual
|
||
|
|
java binaries with :meth:`SCons.Tool.find_program_path`.
|
||
|
|
The paths are sorted by version, latest first.
|
||
|
|
|
||
|
|
Args:
|
||
|
|
platform: selector for search algorithm.
|
||
|
|
version: if not None, restrict the search to this version.
|
||
|
|
|
||
|
|
Returns:
|
||
|
|
list of default paths for jdk.
|
||
|
|
"""
|
||
|
|
|
||
|
|
if platform == 'win32':
|
||
|
|
paths = []
|
||
|
|
if version:
|
||
|
|
paths = glob.glob(java_win32_version_dir_glob % version)
|
||
|
|
else:
|
||
|
|
paths = glob.glob(java_win32_dir_glob)
|
||
|
|
|
||
|
|
def win32getvnum(java):
|
||
|
|
""" Generates a sort key for win32 jdk versions.
|
||
|
|
|
||
|
|
We'll have gotten a path like ...something/*jdk*/bin because
|
||
|
|
that is the pattern we glob for. To generate the sort key,
|
||
|
|
extracts the next-to-last component, then trims it further if
|
||
|
|
it had a complex name, like 'java-1.8.0-openjdk-1.8.0.312-1',
|
||
|
|
to try and put it on a common footing with the more common style,
|
||
|
|
which looks like 'jdk-11.0.2'.
|
||
|
|
|
||
|
|
This is certainly fragile, and if someone has a 9.0 it won't
|
||
|
|
sort right since this will still be alphabetic, BUT 9.0 was
|
||
|
|
not an LTS release and is 30 mos out of support as this note
|
||
|
|
is written so just assume it will be okay.
|
||
|
|
"""
|
||
|
|
d = Path(java).parts[-2]
|
||
|
|
if not d.startswith('jdk'):
|
||
|
|
d = 'jdk' + d.rsplit('jdk', 1)[-1]
|
||
|
|
return d
|
||
|
|
|
||
|
|
return sorted(paths, key=win32getvnum, reverse=True)
|
||
|
|
|
||
|
|
# other platforms, do nothing for now: we expect the standard
|
||
|
|
# paths to be enough to find a jdk (e.g. use alternatives system)
|
||
|
|
return []
|
||
|
|
|
||
|
|
|
||
|
|
def get_java_include_paths(env, javac, version) -> List[str]:
|
||
|
|
"""Find java include paths for JNI building.
|
||
|
|
|
||
|
|
Cannot be called in isolation - `javac` refers to an already detected
|
||
|
|
compiler. Normally would would call :func:`get_java_install_dirs` first
|
||
|
|
and then do lookups on the paths it returns before calling us.
|
||
|
|
|
||
|
|
Args:
|
||
|
|
env: construction environment, used to extract platform.
|
||
|
|
javac: path to detected javac.
|
||
|
|
version: if not None, restrict the search to this version.
|
||
|
|
|
||
|
|
Returns:
|
||
|
|
list of include directory paths.
|
||
|
|
"""
|
||
|
|
|
||
|
|
if not javac:
|
||
|
|
return []
|
||
|
|
|
||
|
|
# on Windows, we have a path to the actual javac, so look locally
|
||
|
|
if env['PLATFORM'] == 'win32':
|
||
|
|
javac_bin_dir = os.path.dirname(javac)
|
||
|
|
java_inc_dir = os.path.normpath(os.path.join(javac_bin_dir, '..', 'include'))
|
||
|
|
paths = [java_inc_dir, os.path.join(java_inc_dir, 'win32')]
|
||
|
|
|
||
|
|
# for the others, we probably found something which isn't in the JDK dir,
|
||
|
|
# so use the predefined patterns to glob for an include directory.
|
||
|
|
elif env['PLATFORM'] == 'darwin':
|
||
|
|
if not version:
|
||
|
|
paths = [java_macos_include_dir_glob]
|
||
|
|
else:
|
||
|
|
paths = sorted(glob.glob(java_macos_version_include_dir_glob % version))
|
||
|
|
else:
|
||
|
|
base_paths = []
|
||
|
|
if not version:
|
||
|
|
for p in java_linux_include_dirs_glob:
|
||
|
|
base_paths.extend(glob.glob(p))
|
||
|
|
else:
|
||
|
|
for p in java_linux_version_include_dirs_glob:
|
||
|
|
base_paths.extend(glob.glob(p % version))
|
||
|
|
|
||
|
|
paths = []
|
||
|
|
for p in base_paths:
|
||
|
|
paths.extend([p, os.path.join(p, 'linux')])
|
||
|
|
|
||
|
|
return paths
|
||
|
|
|
||
|
|
# Local Variables:
|
||
|
|
# tab-width:4
|
||
|
|
# indent-tabs-mode:nil
|
||
|
|
# End:
|
||
|
|
# vim: set expandtab tabstop=4 shiftwidth=4:
|