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Diffstat (limited to 'libjava/classpath/gnu/java/lang/reflect/MethodSignatureParser.java')
-rw-r--r-- | libjava/classpath/gnu/java/lang/reflect/MethodSignatureParser.java | 167 |
1 files changed, 167 insertions, 0 deletions
diff --git a/libjava/classpath/gnu/java/lang/reflect/MethodSignatureParser.java b/libjava/classpath/gnu/java/lang/reflect/MethodSignatureParser.java new file mode 100644 index 00000000000..16b1af99b73 --- /dev/null +++ b/libjava/classpath/gnu/java/lang/reflect/MethodSignatureParser.java @@ -0,0 +1,167 @@ +/* MethodSignatureParser.java + Copyright (C) 2005 + Free Software Foundation + +This file is part of GNU Classpath. + +GNU Classpath is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 2, or (at your option) +any later version. + +GNU Classpath is distributed in the hope that it will be useful, but +WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +General Public License for more details. + +You should have received a copy of the GNU General Public License +along with GNU Classpath; see the file COPYING. If not, write to the +Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA +02110-1301 USA. + +Linking this library statically or dynamically with other modules is +making a combined work based on this library. Thus, the terms and +conditions of the GNU General Public License cover the whole +combination. + +As a special exception, the copyright holders of this library give you +permission to link this library with independent modules to produce an +executable, regardless of the license terms of these independent +modules, and to copy and distribute the resulting executable under +terms of your choice, provided that you also meet, for each linked +independent module, the terms and conditions of the license of that +module. An independent module is a module which is not derived from +or based on this library. If you modify this library, you may extend +this exception to your version of the library, but you are not +obligated to do so. If you do not wish to do so, delete this +exception statement from your version. */ + +package gnu.java.lang.reflect; + +import java.lang.reflect.*; +import java.util.ArrayList; + +public class MethodSignatureParser extends GenericSignatureParser +{ + private TypeVariable[] typeParameters; + private Type[] argTypes; + private Type retType; + private Type[] throwsSigs; + + public MethodSignatureParser(Method method, String signature) + { + this(method, method.getDeclaringClass().getClassLoader(), signature); + } + + public MethodSignatureParser(Constructor method, String signature) + { + this(method, method.getDeclaringClass().getClassLoader(), signature); + } + + private MethodSignatureParser(GenericDeclaration wrapper, + ClassLoader loader, String signature) + { + super(wrapper, loader, signature); + + if (peekChar() == '<') + { + typeParameters = readFormalTypeParameters(); + } + else + { + typeParameters = new TypeVariable[0]; + } + consume('('); + ArrayList args = new ArrayList(); + while (peekChar() != ')') + { + args.add(readTypeSignature()); + } + argTypes = new Type[args.size()]; + args.toArray(argTypes); + consume(')'); + retType = readTypeSignature(); + ArrayList throwsSigs = new ArrayList(); + while (peekChar() == '^') + { + consume('^'); + if(peekChar() == 'T') + { + throwsSigs.add(readTypeVariableSignature()); + } + else + { + throwsSigs.add(readClassTypeSignature()); + } + } + this.throwsSigs = new Type[throwsSigs.size()]; + throwsSigs.toArray(this.throwsSigs); + end(); + } + + public TypeVariable[] getTypeParameters() + { + TypeImpl.resolve(typeParameters); + return typeParameters; + } + + public Type[] getGenericParameterTypes() + { + TypeImpl.resolve(argTypes); + return argTypes; + } + + public Type getGenericReturnType() + { + retType = TypeImpl.resolve(retType); + return retType; + } + + public Type[] getGenericExceptionTypes() + { + TypeImpl.resolve(throwsSigs); + return throwsSigs; + } + + private Type readTypeSignature() + { + switch (peekChar()) + { + case 'T': + return readTypeVariableSignature(); + case 'L': + return readClassTypeSignature(); + case '[': + return readArrayTypeSignature(); + case 'Z': + consume('Z'); + return boolean.class; + case 'B': + consume('B'); + return byte.class; + case 'S': + consume('S'); + return short.class; + case 'C': + consume('C'); + return char.class; + case 'I': + consume('I'); + return int.class; + case 'F': + consume('F'); + return float.class; + case 'J': + consume('J'); + return long.class; + case 'D': + consume('D'); + return double.class; + case 'V': + consume('V'); + return void.class; + default: + throw new GenericSignatureFormatError(); + } + } +} |