/***
* ASM tests
* Copyright (c) 2002-2005 France Telecom
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the copyright holders nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.ow2.asm.test.cases;
import java.io.IOException;
import org.ow2.asm.ClassWriter;
import org.ow2.asm.FieldVisitor;
import org.ow2.asm.Label;
import org.ow2.asm.MethodVisitor;
import org.ow2.asm.Type;
/**
* Generates a class that contain all bytecode instruction types (except JSR and
* RET). Also covers access flags, signatures, and unicode characters.
*
* @author Eric Bruneton
*/
public class Insns extends Generator {
@Override
public void generate(final String dir) throws IOException {
generate(dir, "pkg/Insns.class", dump());
}
public byte[] dump() {
ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_MAXS);
FieldVisitor fv;
MethodVisitor mv;
cw.visit(V1_5,
ACC_PUBLIC + ACC_SUPER,
"pkg/Insns",
"<E:Ljava/lang/Object;F:Ljava/lang/Exception;>Ljava/util/ArrayList<Ljava/lang/String;>;LInterface<TE;>;",
"java/util/ArrayList",
new String[] { "Interface" });
fv = cw.visitField(ACC_PRIVATE + ACC_FINAL,
"z",
"Z",
null,
new Integer(1));
fv.visitEnd();
fv = cw.visitField(ACC_PROTECTED, "b", "B", null, null);
fv.visitEnd();
fv = cw.visitField(ACC_PUBLIC, "c", "C", null, null);
fv.visitEnd();
fv = cw.visitField(ACC_STATIC, "s", "S", null, null);
fv.visitEnd();
fv = cw.visitField(ACC_PRIVATE + ACC_TRANSIENT, "i", "I", null, null);
fv.visitEnd();
fv = cw.visitField(ACC_PRIVATE + ACC_VOLATILE, "l", "J", null, null);
fv.visitEnd();
fv = cw.visitField(0, "f", "F", null, null);
fv.visitEnd();
fv = cw.visitField(0, "d", "D", null, null);
fv.visitEnd();
fv = cw.visitField(0, "str", "Ljava/lang/String;", null, "");
fv.visitEnd();
fv = cw.visitField(0, "e", "Ljava/lang/Object;", "TE;", null);
fv.visitEnd();
mv = cw.visitMethod(ACC_PUBLIC, "<init>", "()V", null, null);
mv.visitCode();
mv.visitVarInsn(ALOAD, 0);
mv.visitMethodInsn(INVOKESPECIAL,
"java/util/ArrayList",
"<init>",
"()V");
mv.visitInsn(RETURN);
mv.visitMaxs(0, 0);
mv.visitEnd();
mv = cw.visitMethod(ACC_PUBLIC + ACC_SYNCHRONIZED,
"m",
"(ZBCSIFJDLjava/lang/Object;)Ljava/lang/Object;",
"(ZBCSIFJDTE;)TE;",
null);
mv.visitCode();
mv.visitInsn(ACONST_NULL);
mv.visitInsn(ARETURN);
mv.visitMaxs(0, 0);
mv.visitEnd();
// instruction types
constInsns(cw);
varInsns(cw);
arrayInsns(cw);
stackInsns(cw);
mathInsns(cw);
castInsns(cw);
jumpInsns(cw);
returnInsns(cw);
fieldInsns(cw);
methodInsns(cw);
monitorInsns(cw);
// various method types not covered by other test cases
varargMethod(cw);
bridgeMethod(cw);
nativeMethod(cw);
clinitMethod(cw);
cw.visitEnd();
return cw.toByteArray();
}
private void constInsns(final ClassWriter cw) {
MethodVisitor mv = cw.visitMethod(ACC_PUBLIC,
"constInsns",
"()V",
null,
null);
mv.visitInsn(NOP);
mv.visitInsn(ACONST_NULL);
mv.visitInsn(ICONST_M1);
mv.visitInsn(ICONST_0);
mv.visitInsn(ICONST_1);
mv.visitInsn(ICONST_2);
mv.visitInsn(ICONST_3);
mv.visitInsn(ICONST_4);
mv.visitInsn(ICONST_5);
mv.visitInsn(LCONST_0);
mv.visitInsn(LCONST_1);
mv.visitInsn(FCONST_0);
mv.visitInsn(FCONST_1);
mv.visitInsn(FCONST_2);
mv.visitInsn(DCONST_0);
mv.visitInsn(DCONST_1);
mv.visitIntInsn(BIPUSH, 16);
mv.visitIntInsn(SIPUSH, 256);
mv.visitLdcInsn(new Integer(65536));
mv.visitLdcInsn(new Long(128L));
mv.visitLdcInsn(new Float("128.0"));
mv.visitLdcInsn(new Double("128.0"));
mv.visitLdcInsn("\n\r\u0009\"\\");
mv.visitLdcInsn("\u1111\u1111\u1111\u1111\u1111\u1111\u1111\u1111\u1111\u1111\u1111\u1111\u1111\u1111\u1111\u1111\u1111\u1111\u1111\u1111\u1111\u1111\u1111\u1111\u1111\u1111\u1111\u1111\u1111\u1111\u1111\u1111\u1111\u1111\u1111\u1111\u1111\u1111\u1111\u1111\u1111\u1111\u1111\u1111\u1111\u1111\u1111\u1111\u1111\u1111\u1111\u1111\u1111\u1111\u1111\u1111\u1111\u1111\u1111\u1111\u1111\u1111\u1111\u1111\u1111\u1111\u1111\u1111\u1111\u0111\u0011\u0001");
mv.visitLdcInsn(Type.getType("Ljava/lang/Object;"));
mv.visitInsn(RETURN);
mv.visitMaxs(0, 0);
mv.visitEnd();
}
private void varInsns(final ClassWriter cw) {
MethodVisitor mv = cw.visitMethod(ACC_PUBLIC,
"varInsns",
"(IJFDD)V",
null,
null);
mv.visitVarInsn(ILOAD, 1);
mv.visitVarInsn(IINC, 1);
mv.visitVarInsn(ISTORE, 1);
mv.visitVarInsn(LLOAD, 2);
mv.visitVarInsn(LSTORE, 2);
mv.visitVarInsn(FLOAD, 4);
mv.visitVarInsn(FSTORE, 4);
mv.visitVarInsn(DLOAD, 5);
mv.visitVarInsn(DSTORE, 5);
mv.visitVarInsn(ALOAD, 0);
mv.visitVarInsn(ASTORE, 0);
mv.visitInsn(ICONST_0);
mv.visitVarInsn(ISTORE, 3);
mv.visitInsn(LCONST_0);
mv.visitVarInsn(LSTORE, 6);
mv.visitInsn(RETURN);
mv.visitMaxs(0, 0);
mv.visitEnd();
}
private void arrayInsns(final ClassWriter cw) {
MethodVisitor mv = cw.visitMethod(ACC_PUBLIC,
"arrayInsns",
"()V",
null,
null);
// boolean arrays
mv.visitInsn(ICONST_1);
mv.visitIntInsn(NEWARRAY, T_BOOLEAN);
mv.visitInsn(DUP);
mv.visitInsn(ICONST_0);
mv.visitInsn(ICONST_0);
mv.visitInsn(BASTORE);
mv.visitInsn(ICONST_0);
mv.visitInsn(BALOAD);
// byte arrays
mv.visitInsn(ICONST_1);
mv.visitIntInsn(NEWARRAY, T_BYTE);
mv.visitInsn(DUP);
mv.visitInsn(ICONST_0);
mv.visitInsn(ICONST_0);
mv.visitInsn(BASTORE);
mv.visitInsn(ICONST_0);
mv.visitInsn(BALOAD);
// char arrays
mv.visitInsn(ICONST_1);
mv.visitIntInsn(NEWARRAY, T_CHAR);
mv.visitInsn(DUP);
mv.visitInsn(ICONST_0);
mv.visitInsn(ICONST_0);
mv.visitInsn(CASTORE);
mv.visitInsn(ICONST_0);
mv.visitInsn(CALOAD);
// short arrays
mv.visitInsn(ICONST_1);
mv.visitIntInsn(NEWARRAY, T_SHORT);
mv.visitInsn(DUP);
mv.visitInsn(ICONST_0);
mv.visitInsn(ICONST_0);
mv.visitInsn(SASTORE);
mv.visitInsn(ICONST_0);
mv.visitInsn(SALOAD);
// int arrays
mv.visitInsn(ICONST_1);
mv.visitIntInsn(NEWARRAY, T_INT);
mv.visitInsn(DUP);
mv.visitInsn(ICONST_0);
mv.visitInsn(ICONST_0);
mv.visitInsn(IASTORE);
mv.visitInsn(ICONST_0);
mv.visitInsn(IALOAD);
// long arrays
mv.visitInsn(ICONST_1);
mv.visitIntInsn(NEWARRAY, T_LONG);
mv.visitInsn(DUP);
mv.visitInsn(ICONST_0);
mv.visitInsn(LCONST_0);
mv.visitInsn(LASTORE);
mv.visitInsn(ICONST_0);
mv.visitInsn(LALOAD);
// float arrays
mv.visitInsn(ICONST_1);
mv.visitIntInsn(NEWARRAY, T_FLOAT);
mv.visitInsn(DUP);
mv.visitInsn(ICONST_0);
mv.visitInsn(FCONST_0);
mv.visitInsn(FASTORE);
mv.visitInsn(ICONST_0);
mv.visitInsn(FALOAD);
// double arrays
mv.visitInsn(ICONST_1);
mv.visitIntInsn(NEWARRAY, T_DOUBLE);
mv.visitInsn(DUP);
mv.visitInsn(ICONST_0);
mv.visitInsn(DCONST_0);
mv.visitInsn(DASTORE);
mv.visitInsn(ICONST_0);
mv.visitInsn(DALOAD);
// object arrays
mv.visitInsn(ICONST_1);
mv.visitTypeInsn(ANEWARRAY, "java/lang/Object");
mv.visitInsn(DUP);
mv.visitInsn(ICONST_0);
mv.visitInsn(ACONST_NULL);
mv.visitInsn(AASTORE);
mv.visitInsn(ICONST_0);
mv.visitInsn(AALOAD);
// multi dimensional arrays
mv.visitInsn(ICONST_1);
mv.visitTypeInsn(ANEWARRAY, "[I");
mv.visitInsn(ICONST_1);
mv.visitInsn(ICONST_2);
mv.visitInsn(ICONST_3);
mv.visitMultiANewArrayInsn("[[[I", 3);
// array length
mv.visitInsn(ARRAYLENGTH);
// end method
mv.visitInsn(RETURN);
mv.visitMaxs(0, 0);
mv.visitEnd();
}
private void stackInsns(final ClassWriter cw) {
MethodVisitor mv = cw.visitMethod(ACC_PUBLIC,
"stackInsns",
"()V",
null,
null);
// pop
mv.visitInsn(ICONST_0);
mv.visitInsn(POP);
// pop2 (two variants)
mv.visitInsn(ICONST_0);
mv.visitInsn(ICONST_0);
mv.visitInsn(POP2);
mv.visitInsn(LCONST_0);
mv.visitInsn(POP2);
// dup
mv.visitInsn(ICONST_0);
mv.visitInsn(DUP);
// dup_x1
mv.visitInsn(ICONST_0);
mv.visitInsn(ICONST_0);
mv.visitInsn(DUP_X1);
// dup_x2 (two variants)
mv.visitInsn(ICONST_0);
mv.visitInsn(ICONST_0);
mv.visitInsn(ICONST_0);
mv.visitInsn(DUP_X2);
mv.visitInsn(LCONST_0);
mv.visitInsn(ICONST_0);
mv.visitInsn(DUP_X2);
// dup2 (two variants)
mv.visitInsn(ICONST_0);
mv.visitInsn(ICONST_0);
mv.visitInsn(DUP2);
mv.visitInsn(LCONST_0);
mv.visitInsn(DUP2);
// dup2_x1 (two variants)
mv.visitInsn(ICONST_0);
mv.visitInsn(ICONST_0);
mv.visitInsn(ICONST_0);
mv.visitInsn(DUP2_X1);
mv.visitInsn(ICONST_0);
mv.visitInsn(LCONST_0);
mv.visitInsn(DUP2_X1);
// dup2_x2 (four variants)
mv.visitInsn(ICONST_0);
mv.visitInsn(ICONST_0);
mv.visitInsn(ICONST_0);
mv.visitInsn(ICONST_0);
mv.visitInsn(DUP2_X2);
mv.visitInsn(LCONST_0);
mv.visitInsn(ICONST_0);
mv.visitInsn(ICONST_0);
mv.visitInsn(DUP2_X2);
mv.visitInsn(ICONST_0);
mv.visitInsn(ICONST_0);
mv.visitInsn(LCONST_0);
mv.visitInsn(DUP2_X2);
mv.visitInsn(LCONST_0);
mv.visitInsn(LCONST_0);
mv.visitInsn(DUP2_X2);
// swap
mv.visitInsn(ICONST_0);
mv.visitInsn(ICONST_1);
mv.visitInsn(SWAP);
// end method
mv.visitInsn(RETURN);
mv.visitMaxs(0, 0);
mv.visitEnd();
}
private void mathInsns(final ClassWriter cw) {
MethodVisitor mv = cw.visitMethod(ACC_PUBLIC,
"mathInsns",
"(IJFD)V",
null,
null);
// int math insns
for (int i = 0; i < 12; ++i) {
mv.visitVarInsn(ILOAD, 1);
}
mv.visitInsn(IADD);
mv.visitInsn(ISUB);
mv.visitInsn(IMUL);
mv.visitInsn(IDIV);
mv.visitInsn(IREM);
mv.visitInsn(INEG);
mv.visitInsn(ISHL);
mv.visitInsn(ISHR);
mv.visitInsn(IUSHR);
mv.visitInsn(IAND);
mv.visitInsn(IOR);
mv.visitInsn(IXOR);
// long math insns
for (int i = 0; i < 9; ++i) {
mv.visitVarInsn(LLOAD, 2);
}
mv.visitInsn(LADD);
mv.visitInsn(LSUB);
mv.visitInsn(LMUL);
mv.visitInsn(LDIV);
mv.visitInsn(LREM);
mv.visitInsn(LNEG);
mv.visitVarInsn(ILOAD, 1);
mv.visitInsn(LSHL);
mv.visitVarInsn(ILOAD, 1);
mv.visitInsn(LSHR);
mv.visitVarInsn(ILOAD, 1);
mv.visitInsn(LUSHR);
mv.visitInsn(LAND);
mv.visitInsn(LOR);
mv.visitInsn(LXOR);
// float math insns
for (int i = 0; i < 6; ++i) {
mv.visitVarInsn(FLOAD, 4);
}
mv.visitInsn(FADD);
mv.visitInsn(FSUB);
mv.visitInsn(FMUL);
mv.visitInsn(FDIV);
mv.visitInsn(FREM);
mv.visitInsn(FNEG);
// double math insns
for (int i = 0; i < 6; ++i) {
mv.visitVarInsn(DLOAD, 5);
}
mv.visitInsn(DADD);
mv.visitInsn(DSUB);
mv.visitInsn(DMUL);
mv.visitInsn(DDIV);
mv.visitInsn(DREM);
mv.visitInsn(DNEG);
// end method
mv.visitInsn(RETURN);
mv.visitMaxs(0, 0);
mv.visitEnd();
}
private void castInsns(final ClassWriter cw) {
MethodVisitor mv = cw.visitMethod(ACC_PUBLIC,
"castInsns",
"(IJFD)V",
null,
null);
// I2x
mv.visitVarInsn(ILOAD, 1);
mv.visitInsn(I2L);
mv.visitVarInsn(LSTORE, 2);
mv.visitVarInsn(ILOAD, 1);
mv.visitInsn(I2F);
mv.visitVarInsn(FSTORE, 4);
mv.visitVarInsn(ILOAD, 1);
mv.visitInsn(I2D);
mv.visitVarInsn(DSTORE, 5);
// L2x
mv.visitVarInsn(LLOAD, 2);
mv.visitInsn(L2I);
mv.visitVarInsn(ISTORE, 1);
mv.visitVarInsn(LLOAD, 2);
mv.visitInsn(L2F);
mv.visitVarInsn(FSTORE, 4);
mv.visitVarInsn(LLOAD, 2);
mv.visitInsn(L2D);
mv.visitVarInsn(DSTORE, 5);
// F2x
mv.visitVarInsn(FLOAD, 4);
mv.visitInsn(F2I);
mv.visitVarInsn(ISTORE, 1);
mv.visitVarInsn(FLOAD, 4);
mv.visitInsn(F2L);
mv.visitVarInsn(LSTORE, 2);
mv.visitVarInsn(FLOAD, 4);
mv.visitInsn(F2D);
mv.visitVarInsn(DSTORE, 5);
// D2x
mv.visitVarInsn(DLOAD, 5);
mv.visitInsn(D2I);
mv.visitVarInsn(ISTORE, 1);
mv.visitVarInsn(DLOAD, 5);
mv.visitInsn(D2L);
mv.visitVarInsn(LSTORE, 2);
mv.visitVarInsn(DLOAD, 5);
mv.visitInsn(D2F);
mv.visitVarInsn(FSTORE, 4);
// I2B
mv.visitVarInsn(ALOAD, 0);
mv.visitVarInsn(ILOAD, 1);
mv.visitInsn(I2B);
mv.visitFieldInsn(PUTFIELD, "pkg/Insns", "b", "B");
// I2C
mv.visitVarInsn(ALOAD, 0);
mv.visitVarInsn(ILOAD, 1);
mv.visitInsn(I2C);
mv.visitFieldInsn(PUTFIELD, "pkg/Insns", "c", "C");
// I2S
mv.visitVarInsn(ILOAD, 1);
mv.visitInsn(I2S);
mv.visitFieldInsn(PUTSTATIC, "pkg/Insns", "s", "S");
// checkcast
mv.visitInsn(ACONST_NULL);
mv.visitTypeInsn(CHECKCAST, "java/lang/String");
mv.visitInsn(ACONST_NULL);
mv.visitTypeInsn(CHECKCAST, "[[I");
// instanceof
mv.visitInsn(ACONST_NULL);
mv.visitTypeInsn(INSTANCEOF, "java/lang/String");
// end method
mv.visitInsn(RETURN);
mv.visitMaxs(0, 0);
mv.visitEnd();
}
private void jumpInsns(final ClassWriter cw) {
MethodVisitor mv = cw.visitMethod(ACC_PUBLIC,
"jumpInsns",
"(IJFD)V",
null,
null);
Label l0 = new Label();
// ifxx
mv.visitVarInsn(ILOAD, 1);
mv.visitJumpInsn(IFNE, l0);
mv.visitVarInsn(ILOAD, 1);
mv.visitJumpInsn(IFEQ, l0);
mv.visitVarInsn(ILOAD, 1);
mv.visitJumpInsn(IFLE, l0);
mv.visitVarInsn(ILOAD, 1);
mv.visitJumpInsn(IFGE, l0);
mv.visitVarInsn(ILOAD, 1);
mv.visitJumpInsn(IFLT, l0);
mv.visitVarInsn(ILOAD, 1);
mv.visitJumpInsn(IFGT, l0);
// ificmpxx
mv.visitVarInsn(ILOAD, 1);
mv.visitVarInsn(ILOAD, 1);
mv.visitJumpInsn(IF_ICMPNE, l0);
mv.visitVarInsn(ILOAD, 1);
mv.visitVarInsn(ILOAD, 1);
mv.visitJumpInsn(IF_ICMPEQ, l0);
mv.visitVarInsn(ILOAD, 1);
mv.visitVarInsn(ILOAD, 1);
mv.visitJumpInsn(IF_ICMPLE, l0);
mv.visitVarInsn(ILOAD, 1);
mv.visitVarInsn(ILOAD, 1);
mv.visitJumpInsn(IF_ICMPGE, l0);
mv.visitVarInsn(ILOAD, 1);
mv.visitVarInsn(ILOAD, 1);
mv.visitJumpInsn(IF_ICMPLT, l0);
mv.visitVarInsn(ILOAD, 1);
mv.visitVarInsn(ILOAD, 1);
mv.visitJumpInsn(IF_ICMPGT, l0);
// lcmp
mv.visitVarInsn(LLOAD, 2);
mv.visitVarInsn(LLOAD, 2);
mv.visitInsn(LCMP);
mv.visitJumpInsn(IFNE, l0);
// fcmpx
mv.visitVarInsn(FLOAD, 4);
mv.visitVarInsn(FLOAD, 4);
mv.visitInsn(FCMPL);
mv.visitJumpInsn(IFNE, l0);
mv.visitVarInsn(FLOAD, 4);
mv.visitVarInsn(FLOAD, 4);
mv.visitInsn(FCMPG);
mv.visitJumpInsn(IFNE, l0);
// dcmpx
mv.visitVarInsn(DLOAD, 5);
mv.visitVarInsn(DLOAD, 5);
mv.visitInsn(DCMPL);
mv.visitJumpInsn(IFNE, l0);
mv.visitVarInsn(DLOAD, 5);
mv.visitVarInsn(DLOAD, 5);
mv.visitInsn(DCMPG);
mv.visitJumpInsn(IFNE, l0);
// ifacmp
mv.visitVarInsn(ALOAD, 0);
mv.visitVarInsn(ALOAD, 0);
mv.visitJumpInsn(IF_ACMPNE, l0);
mv.visitVarInsn(ALOAD, 0);
mv.visitVarInsn(ALOAD, 0);
mv.visitJumpInsn(IF_ACMPEQ, l0);
// ifnull
mv.visitVarInsn(ALOAD, 0);
mv.visitJumpInsn(IFNULL, l0);
mv.visitInsn(ICONST_0);
mv.visitVarInsn(ISTORE, 7);
mv.visitVarInsn(ALOAD, 0);
mv.visitJumpInsn(IFNONNULL, l0);
mv.visitInsn(ICONST_0);
mv.visitVarInsn(ISTORE, 7);
mv.visitVarInsn(ALOAD, 0);
// tableswitch
Label l1 = new Label();
Label l2 = new Label();
Label l3 = new Label();
mv.visitVarInsn(ILOAD, 1);
mv.visitTableSwitchInsn(0, 2, l3/*default*/, l1, l2, l3 );
mv.visitLabel(l1);
mv.visitInsn(ICONST_1);
mv.visitVarInsn(ISTORE, 7);
mv.visitJumpInsn(GOTO, l3);
mv.visitLabel(l2);
mv.visitInsn(ICONST_2);
mv.visitVarInsn(ISTORE, 7);
mv.visitJumpInsn(GOTO, l3);
mv.visitLabel(l3);
mv.visitVarInsn(ILOAD, 7);
// lookupswitch
Label l4 = new Label();
Label l5 = new Label();
Label l6 = new Label();
mv.visitVarInsn(ILOAD, 1);
mv.visitLookupSwitchInsn(l6, new int[] { 0, 1, 2 }, new Label[] {
l4,
l5,
l6 });
mv.visitLabel(l4);
mv.visitInsn(ICONST_1);
mv.visitVarInsn(ISTORE, 7);
mv.visitJumpInsn(GOTO, l6);
mv.visitLabel(l5);
mv.visitInsn(ICONST_2);
mv.visitVarInsn(ISTORE, 7);
mv.visitJumpInsn(GOTO, l6);
mv.visitLabel(l6);
mv.visitVarInsn(ILOAD, 7);
// throw
mv.visitInsn(ACONST_NULL);
mv.visitInsn(ATHROW);
// misc instructions to cover code in MethodWriter.resizeInsns
mv.visitLabel(l0);
mv.visitInsn(ICONST_1);
mv.visitInsn(ICONST_2);
mv.visitMultiANewArrayInsn("[[I", 2);
mv.visitVarInsn(ALOAD, 0);
mv.visitMethodInsn(INVOKEINTERFACE, "java/util/List", "size", "()V");
// end method
mv.visitInsn(RETURN);
mv.visitMaxs(0, 0);
mv.visitEnd();
}
private void returnInsns(final ClassWriter cw) {
MethodVisitor mv;
mv = cw.visitMethod(ACC_STATIC, "ireturnInsn", "()I", null, null);
mv.visitCode();
mv.visitInsn(ICONST_0);
mv.visitInsn(IRETURN);
mv.visitMaxs(0, 0);
mv.visitEnd();
mv = cw.visitMethod(ACC_PRIVATE, "lreturnInsn", "()J", null, null);
mv.visitCode();
mv.visitInsn(LCONST_0);
mv.visitInsn(LRETURN);
mv.visitMaxs(0, 0);
mv.visitEnd();
mv = cw.visitMethod(0, "freturnInsn", "()F", null, null);
mv.visitCode();
mv.visitInsn(FCONST_0);
mv.visitInsn(FRETURN);
mv.visitMaxs(0, 0);
mv.visitEnd();
mv = cw.visitMethod(0, "dreturnInsn", "()D", null, null);
mv.visitCode();
mv.visitInsn(DCONST_0);
mv.visitInsn(DRETURN);
mv.visitMaxs(0, 0);
mv.visitEnd();
}
private void fieldInsns(final ClassWriter cw) {
MethodVisitor mv = cw.visitMethod(ACC_PUBLIC,
"fieldInsns",
"()V",
null,
null);
mv.visitFieldInsn(GETSTATIC, "pkg/Insns", "s", "S");
mv.visitFieldInsn(PUTSTATIC, "pkg/Insns", "s", "S");
mv.visitVarInsn(ALOAD, 0);
mv.visitVarInsn(ALOAD, 0);
mv.visitFieldInsn(GETFIELD, "pkg/Insns", "i", "I");
mv.visitFieldInsn(PUTFIELD, "pkg/Insns", "i", "I");
mv.visitVarInsn(ALOAD, 0);
mv.visitVarInsn(ALOAD, 0);
mv.visitFieldInsn(GETFIELD, "pkg/Insns", "l", "J");
mv.visitFieldInsn(PUTFIELD, "pkg/Insns", "l", "J");
mv.visitInsn(RETURN);
mv.visitMaxs(0, 0);
mv.visitEnd();
}
private void methodInsns(final ClassWriter cw) {
MethodVisitor mv = cw.visitMethod(ACC_PUBLIC,
"methodInsns",
"()V",
null,
null);
// invokstatic
mv.visitMethodInsn(INVOKESTATIC, "pkg/Insns", "ireturn", "()I");
// invokespecial
mv.visitVarInsn(ALOAD, 0);
mv.visitMethodInsn(INVOKESPECIAL, "pkg/Insns", "lreturn", "()J");
// invokevirtual
mv.visitVarInsn(ALOAD, 0);
mv.visitMethodInsn(INVOKEVIRTUAL, "pkg/Insns", "freturn", "()F");
// invokeinterface
mv.visitVarInsn(ALOAD, 0);
mv.visitMethodInsn(INVOKEINTERFACE, "java/util/List", "size", "()I");
mv.visitInsn(RETURN);
mv.visitMaxs(0, 0);
mv.visitEnd();
}
private void monitorInsns(final ClassWriter cw) {
MethodVisitor mv = cw.visitMethod(ACC_PUBLIC,
"monitorInsns",
"()V",
null,
null);
mv.visitVarInsn(ALOAD, 0);
mv.visitInsn(MONITORENTER);
mv.visitVarInsn(ALOAD, 0);
mv.visitInsn(MONITOREXIT);
mv.visitInsn(RETURN);
mv.visitMaxs(0, 0);
mv.visitEnd();
}
private void varargMethod(final ClassWriter cw) {
MethodVisitor mv = cw.visitMethod(ACC_PUBLIC + ACC_VARARGS + ACC_STRICT,
"varargMethod",
"([Ljava/lang/Object;)V",
"([Ljava/lang/Object;)V^TF;",
new String[] { "java/lang/Exception" });
mv.visitCode();
mv.visitInsn(RETURN);
mv.visitMaxs(0, 0);
mv.visitEnd();
}
private void bridgeMethod(final ClassWriter cw) {
MethodVisitor mv = cw.visitMethod(ACC_PUBLIC,
"get",
"(I)Ljava/lang/String;",
null,
null);
mv.visitCode();
mv.visitVarInsn(ALOAD, 0);
mv.visitVarInsn(ILOAD, 1);
mv.visitMethodInsn(INVOKESPECIAL,
"java/util/ArrayList",
"get",
"(I)Ljava/lang/Object;");
mv.visitTypeInsn(CHECKCAST, "java/lang/String");
mv.visitInsn(ARETURN);
mv.visitMaxs(0, 0);
mv.visitEnd();
mv = cw.visitMethod(ACC_PUBLIC + ACC_BRIDGE + ACC_SYNTHETIC,
"get",
"(I)Ljava/lang/Object;",
"(I)TE;",
null);
mv.visitCode();
mv.visitVarInsn(ALOAD, 0);
mv.visitVarInsn(ILOAD, 1);
mv.visitMethodInsn(INVOKEVIRTUAL,
"pkg/Insns",
"get",
"(I)Ljava/lang/String;");
mv.visitInsn(ARETURN);
mv.visitMaxs(0, 0);
mv.visitEnd();
}
private void nativeMethod(final ClassWriter cw) {
MethodVisitor mv = cw.visitMethod(ACC_PRIVATE + ACC_NATIVE,
"nativeMethod",
"()V",
null,
null);
mv.visitEnd();
}
private void clinitMethod(final ClassWriter cw) {
MethodVisitor mv = cw.visitMethod(ACC_STATIC,
"<clinit>",
"()V",
null,
null);
mv.visitCode();
mv.visitInsn(ICONST_1);
mv.visitFieldInsn(PUTSTATIC, "pkg/Insns", "s", "S");
mv.visitInsn(RETURN);
mv.visitMaxs(0, 0);
mv.visitEnd();
}
}