diff options
Diffstat (limited to 'src/main/javassist/compiler/AccessorMaker.java')
| -rw-r--r-- | src/main/javassist/compiler/AccessorMaker.java | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/src/main/javassist/compiler/AccessorMaker.java b/src/main/javassist/compiler/AccessorMaker.java index bfe59f51..14f46194 100644 --- a/src/main/javassist/compiler/AccessorMaker.java +++ b/src/main/javassist/compiler/AccessorMaker.java @@ -28,12 +28,59 @@ public class AccessorMaker { private int uniqueNumber; private HashMap accessors; + static final String lastParamType = "javassist.runtime.Inner"; + public AccessorMaker(CtClass c) { clazz = c; uniqueNumber = 1; accessors = new HashMap(); } + public String getConstructor(CtClass c, String desc, MethodInfo orig) + throws CompileError + { + String key = "<init>:" + desc; + String consDesc = (String)accessors.get(key); + if (consDesc != null) + return consDesc; // already exists. + + consDesc = Descriptor.appendParameter(lastParamType, desc); + ClassFile cf = clazz.getClassFile(); // turn on the modified flag. + try { + ConstPool cp = cf.getConstPool(); + ClassPool pool = clazz.getClassPool(); + MethodInfo minfo + = new MethodInfo(cp, MethodInfo.nameInit, consDesc); + minfo.setAccessFlags(0); + minfo.addAttribute(new SyntheticAttribute(cp)); + ExceptionsAttribute ea = orig.getExceptionsAttribute(); + if (ea != null) + minfo.addAttribute(ea.copy(cp, null)); + + CtClass[] params = Descriptor.getParameterTypes(desc, pool); + Bytecode code = new Bytecode(cp); + code.addAload(0); + int regno = 1; + for (int i = 0; i < params.length; ++i) + regno += code.addLoad(regno, params[i]); + code.setMaxLocals(regno + 1); // the last parameter is added. + code.addInvokespecial(clazz, MethodInfo.nameInit, desc); + + code.addReturn(null); + minfo.setCodeAttribute(code.toCodeAttribute()); + cf.addMethod(minfo); + } + catch (CannotCompileException e) { + throw new CompileError(e); + } + catch (NotFoundException e) { + throw new CompileError(e); + } + + accessors.put(key, consDesc); + return consDesc; + } + /** * Returns the name of the method for accessing a private method. * |