X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=src%2Forg%2Fibex%2Fclassgen%2FMethodGen.java;h=2dcb4e3913e987e273b23317bf41b63cc0c3d8a0;hb=81fd22a1bc8c3117a5279da19fd3443976d03095;hp=2d3a0fce0c42367676a70d193d95e3338795a828;hpb=be231cfa8ce0eac52873b9f0f82b8aecca9c458a;p=org.ibex.classgen.git diff --git a/src/org/ibex/classgen/MethodGen.java b/src/org/ibex/classgen/MethodGen.java index 2d3a0fc..2dcb4e3 100644 --- a/src/org/ibex/classgen/MethodGen.java +++ b/src/org/ibex/classgen/MethodGen.java @@ -4,20 +4,21 @@ import java.io.*; import java.util.*; /** A class representing a method in a generated classfile - @see ClassGen#addMethod */ + @see ClassFile#addMethod */ public class MethodGen implements CGConst { private final static boolean EMIT_NOPS = false; private static final int NO_CODE = -1; private static final int FINISHED = -2; - - private final CPGen cp; + + private final ClassFile owner; + private final ConstantPool cp; private final String name; private final Type ret; private final Type[] args; private final int flags; - private final ClassGen.AttrGen attrs; - private final ClassGen.AttrGen codeAttrs; + private final ClassFile.AttrGen attrs; + private final ClassFile.AttrGen codeAttrs; private final Hashtable exnTable = new Hashtable(); private final Hashtable thrownExceptions = new Hashtable(); @@ -31,7 +32,7 @@ public class MethodGen implements CGConst { public String toString() { StringBuffer sb = new StringBuffer(); toString(sb, ""); return sb.toString(); } public void toString(StringBuffer sb, String constructorName) { - sb.append(ClassGen.flagsToString(flags)); + sb.append(ClassFile.flagsToString(flags)); sb.append(ret); sb.append(" "); @@ -49,20 +50,21 @@ public class MethodGen implements CGConst { // FIXME: attrs, body } - MethodGen(CPGen cp, DataInput in) throws IOException { + MethodGen(ConstantPool cp, DataInput in, ClassFile owner) throws IOException { this.cp = cp; + this.owner = owner; flags = in.readShort(); name = cp.getUtf8ByIndex(in.readShort()); String descriptor = cp.getUtf8ByIndex(in.readShort()); String ret = descriptor.substring(descriptor.indexOf(')')+1); - this.ret = Type.fromDescriptor(ret); + this.ret = Type.instance(ret); //String args = descriptor.substring(1, descriptor.indexOf(')')); args = new Type[0]; // FIXME codeAttrs = null; - attrs = new ClassGen.AttrGen(cp, in); + attrs = new ClassFile.AttrGen(cp, in); } - MethodGen(ClassGen owner, String name, Type ret, Type[] args, int flags) { + MethodGen(ClassFile owner, String name, Type ret, Type[] args, int flags) { if((flags & ~(ACC_PUBLIC|ACC_PRIVATE|ACC_PROTECTED|ACC_STATIC|ACC_FINAL|ACC_SYNCHRONIZED|ACC_NATIVE|ACC_ABSTRACT|ACC_STRICT)) != 0) throw new IllegalArgumentException("invalid flags"); this.cp = owner.cp; @@ -70,27 +72,25 @@ public class MethodGen implements CGConst { this.ret = ret; this.args = args; this.flags = flags; + this.owner = owner; - attrs = new ClassGen.AttrGen(cp); - codeAttrs = new ClassGen.AttrGen(cp); + attrs = new ClassFile.AttrGen(cp); + codeAttrs = new ClassFile.AttrGen(cp); cp.addUtf8(name); - cp.addUtf8(getDescriptor()); + cp.addUtf8(owner.getType().method(name, ret, args).getDescriptor()); if((owner.flags & ACC_INTERFACE) != 0 || (flags & (ACC_ABSTRACT|ACC_NATIVE)) != 0) size = capacity = -1; maxLocals = Math.max(args.length + (flags&ACC_STATIC)==0 ? 1 : 0, 4); } - /** Returns the descriptor string for this method */ - public String getDescriptor() { return MethodRef.getDescriptor(ret, args); } - private class ExnTableEnt { public int start; public int end; public int handler; - public CPGen.Ent typeEnt; - public ExnTableEnt(int start, int end, int handler, CPGen.Ent typeEnt) { + public ConstantPool.Ent typeEnt; + public ExnTableEnt(int start, int end, int handler, ConstantPool.Ent typeEnt) { this.start = start; this.end = end; this.handler = handler; @@ -110,7 +110,7 @@ public class MethodGen implements CGConst { @param handler The instruction of the excepton handler @param type The type of exception that is to be handled (MUST inherit from Throwable) */ - public final void addExceptionHandler(int start, int end, int handler, Type.Object type) { + public final void addExceptionHandler(int start, int end, int handler, Type.Class type) { exnTable.put(type, new ExnTableEnt(start, end, handler, cp.add(type))); } @@ -118,7 +118,7 @@ public class MethodGen implements CGConst { NOTE: This isn't enforced by the JVM. This is for reference only. A method can throw exceptions not declared to be thrown @param type The type of exception that can be thrown */ - public final void addThrow(Type.Object type) { + public final void addThrow(Type.Class type) { thrownExceptions.put(type, cp.add(type)); } @@ -275,13 +275,15 @@ public class MethodGen implements CGConst { if(arg instanceof Long || arg instanceof Double) op = LDC2_W; break; - case INVOKEINTERFACE: - if(arg instanceof MethodRef) arg = new MethodRef.I((MethodRef)arg); + case INVOKEINTERFACE: { break; + } } int opdata = OP_DATA[op&0xff]; - if((opdata&OP_CPENT_FLAG) != 0 && !(arg instanceof CPGen.Ent)) - arg = cp.add(arg); + if((opdata&OP_CPENT_FLAG) != 0 && !(arg instanceof ConstantPool.Ent)) { + if (op==INVOKEINTERFACE) arg = cp.add(arg, true); + else arg = cp.add(arg); + } else if((opdata&OP_VALID_FLAG) == 0) throw new IllegalArgumentException("unknown bytecode"); this.op[pos] = op; @@ -458,7 +460,7 @@ public class MethodGen implements CGConst { break; } case LDC: - j = cp.getIndex((CPGen.Ent)arg[i]); + j = cp.getIndex((ConstantPool.Ent)arg[i]); if(j >= 256) this.op[i] = op = LDC_W; break; default: @@ -511,7 +513,7 @@ public class MethodGen implements CGConst { } int codeSize = p; - if(codeSize >= 65536) throw new ClassGen.Exn("method too large in size"); + if(codeSize >= 65536) throw new ClassFile.Exn("method too large in size"); o.writeShort(maxStack); o.writeShort(maxLocals); @@ -533,7 +535,7 @@ public class MethodGen implements CGConst { switch(op) { case IINC: { Pair pair = (Pair) arg; - if(pair.i1 > 255 || pair.i2 < -128 || pair.i2 > 127) throw new ClassGen.Exn("overflow of iinc arg"); + if(pair.i1 > 255 || pair.i2 < -128 || pair.i2 > 127) throw new ClassFile.Exn("overflow of iinc arg"); o.writeByte(pair.i1); o.writeByte(pair.i2); break; @@ -571,7 +573,7 @@ public class MethodGen implements CGConst { if((opdata & OP_BRANCH_FLAG) != 0) { int v = pc[((Integer)arg).intValue()] - pc[i]; if(argLength == 2) { - if(v < -32768 || v > 32767) throw new ClassGen.Exn("overflow of s2 offset"); + if(v < -32768 || v > 32767) throw new ClassFile.Exn("overflow of s2 offset"); o.writeShort(v); } else if(argLength == 4) { o.writeInt(v); @@ -579,7 +581,7 @@ public class MethodGen implements CGConst { throw new Error("should never happen"); } } else if((opdata & OP_CPENT_FLAG) != 0) { - int v = cp.getIndex((CPGen.Ent)arg); + int v = cp.getIndex((ConstantPool.Ent)arg); if(argLength == 1) o.writeByte(v); else if(argLength == 2) o.writeShort(v); else throw new Error("should never happen"); @@ -588,10 +590,10 @@ public class MethodGen implements CGConst { } else { int iarg = ((Integer)arg).intValue(); if(argLength == 1) { - if(iarg < -128 || iarg >= 256) throw new ClassGen.Exn("overflow of s/u1 option"); + if(iarg < -128 || iarg >= 256) throw new ClassFile.Exn("overflow of s/u1 option"); o.writeByte(iarg); } else if(argLength == 2) { - if(iarg < -32768 || iarg >= 65536) throw new ClassGen.Exn("overflow of s/u2 option"); + if(iarg < -32768 || iarg >= 65536) throw new ClassFile.Exn("overflow of s/u2 option"); o.writeShort(iarg); } else { throw new Error("should never happen"); @@ -618,7 +620,7 @@ public class MethodGen implements CGConst { baos.reset(); o.writeShort(thrownExceptions.size()); for(Enumeration e = thrownExceptions.keys();e.hasMoreElements();) - o.writeShort(cp.getIndex((CPGen.Ent)thrownExceptions.get(e.nextElement()))); + o.writeShort(cp.getIndex((ConstantPool.Ent)thrownExceptions.get(e.nextElement()))); attrs.add("Exceptions", baos.toByteArray()); size = capacity = FINISHED; @@ -627,7 +629,7 @@ public class MethodGen implements CGConst { void dump(DataOutput o) throws IOException { o.writeShort(flags); o.writeShort(cp.getUtf8Index(name)); - o.writeShort(cp.getUtf8Index(getDescriptor())); + o.writeShort(cp.getUtf8Index(owner.getType().method(name, ret, args).getDescriptor())); o.writeShort(attrs.size()); attrs.dump(o); }