/** Prepares return value. */
public static void prepareReturnValue(
MethodVisitor mv, MethodSignatureVisitor msign, int varOffset) {
varOffset += msign.getAllArgumentsSize();
switch (msign.getReturnOpcodeType()) {
case 'V':
mv.visitInsn(ACONST_NULL);
break;
case 'B':
AsmUtil.valueOfByte(mv);
break;
case 'C':
AsmUtil.valueOfCharacter(mv);
break;
case 'S':
AsmUtil.valueOfShort(mv);
break;
case 'I':
AsmUtil.valueOfInteger(mv);
break;
case 'Z':
AsmUtil.valueOfBoolean(mv);
break;
case 'J':
AsmUtil.valueOfLong(mv);
break;
case 'F':
AsmUtil.valueOfFloat(mv);
break;
case 'D':
AsmUtil.valueOfDouble(mv);
break;
}
}
public static void loadMethodArgumentAsObject(
MethodVisitor mv, MethodSignatureVisitor msign, int index) {
int offset = msign.getArgumentOffset(index);
int type = msign.getArgumentOpcodeType(index);
switch (type) {
case 'V':
break;
case 'B':
mv.visitVarInsn(ILOAD, offset);
AsmUtil.valueOfByte(mv);
break;
case 'C':
mv.visitVarInsn(ILOAD, offset);
AsmUtil.valueOfCharacter(mv);
break;
case 'S':
mv.visitVarInsn(ILOAD, offset);
AsmUtil.valueOfShort(mv);
break;
case 'I':
mv.visitVarInsn(ILOAD, offset);
AsmUtil.valueOfInteger(mv);
break;
case 'Z':
mv.visitVarInsn(ILOAD, offset);
AsmUtil.valueOfBoolean(mv);
break;
case 'J':
mv.visitVarInsn(LLOAD, offset);
AsmUtil.valueOfLong(mv);
break;
case 'F':
mv.visitVarInsn(FLOAD, offset);
AsmUtil.valueOfFloat(mv);
break;
case 'D':
mv.visitVarInsn(DLOAD, offset);
AsmUtil.valueOfDouble(mv);
break;
default:
mv.visitVarInsn(ALOAD, offset);
}
}
public static void storeValue(MethodVisitor mv, int offset, int type) {
switch (type) {
case 'V':
break;
case 'B':
AsmUtil.byteValue(mv);
mv.visitVarInsn(ISTORE, offset);
break;
case 'C':
AsmUtil.charValue(mv);
mv.visitVarInsn(ISTORE, offset);
break;
case 'S':
AsmUtil.shortValue(mv);
mv.visitVarInsn(ISTORE, offset);
break;
case 'I':
AsmUtil.intValue(mv);
mv.visitVarInsn(ISTORE, offset);
break;
case 'Z':
AsmUtil.booleanValue(mv);
mv.visitVarInsn(ISTORE, offset);
break;
case 'J':
AsmUtil.longValue(mv);
mv.visitVarInsn(LSTORE, offset);
break;
case 'F':
AsmUtil.floatValue(mv);
mv.visitVarInsn(FSTORE, offset);
break;
case 'D':
AsmUtil.doubleValue(mv);
mv.visitVarInsn(DSTORE, offset);
break;
default:
mv.visitVarInsn(ASTORE, offset);
}
}
/** Visits return opcodes. */
public static void visitReturn(MethodVisitor mv, MethodSignatureVisitor msign, boolean isLast) {
switch (msign.getReturnOpcodeType()) {
case 'V':
if (isLast == true) {
mv.visitInsn(POP);
}
mv.visitInsn(RETURN);
break;
case 'B':
if (isLast == true) {
mv.visitInsn(DUP);
Label label = new Label();
mv.visitJumpInsn(IFNONNULL, label);
mv.visitInsn(POP);
mv.visitInsn(ICONST_0);
mv.visitInsn(IRETURN);
mv.visitLabel(label);
AsmUtil.byteValue(mv);
}
mv.visitInsn(IRETURN);
break;
case 'C':
if (isLast == true) {
mv.visitInsn(DUP);
Label label = new Label();
mv.visitJumpInsn(IFNONNULL, label);
mv.visitInsn(POP);
mv.visitInsn(ICONST_0);
mv.visitInsn(IRETURN);
mv.visitLabel(label);
AsmUtil.charValue(mv);
}
mv.visitInsn(IRETURN);
break;
case 'S':
if (isLast == true) {
mv.visitInsn(DUP);
Label label = new Label();
mv.visitJumpInsn(IFNONNULL, label);
mv.visitInsn(POP);
mv.visitInsn(ICONST_0);
mv.visitInsn(IRETURN);
mv.visitLabel(label);
AsmUtil.shortValue(mv);
}
mv.visitInsn(IRETURN);
break;
case 'I':
if (isLast == true) {
mv.visitInsn(DUP);
Label label = new Label();
mv.visitJumpInsn(IFNONNULL, label);
mv.visitInsn(POP);
mv.visitInsn(ICONST_0);
mv.visitInsn(IRETURN);
mv.visitLabel(label);
AsmUtil.intValue(mv);
}
mv.visitInsn(IRETURN);
break;
case 'Z':
if (isLast == true) {
mv.visitInsn(DUP);
Label label = new Label();
mv.visitJumpInsn(IFNONNULL, label);
mv.visitInsn(POP);
mv.visitInsn(ICONST_0);
mv.visitInsn(IRETURN);
mv.visitLabel(label);
AsmUtil.booleanValue(mv);
}
mv.visitInsn(IRETURN);
break;
case 'J':
if (isLast == true) {
mv.visitInsn(DUP);
Label label = new Label();
mv.visitJumpInsn(IFNONNULL, label);
mv.visitInsn(POP);
mv.visitInsn(LCONST_0);
mv.visitInsn(LRETURN);
mv.visitLabel(label);
AsmUtil.longValue(mv);
}
mv.visitInsn(LRETURN);
break;
case 'F':
if (isLast == true) {
mv.visitInsn(DUP);
Label label = new Label();
mv.visitJumpInsn(IFNONNULL, label);
mv.visitInsn(POP);
mv.visitInsn(FCONST_0);
mv.visitInsn(FRETURN);
mv.visitLabel(label);
AsmUtil.floatValue(mv);
}
mv.visitInsn(FRETURN);
break;
case 'D':
if (isLast == true) {
mv.visitInsn(DUP);
Label label = new Label();
mv.visitJumpInsn(IFNONNULL, label);
mv.visitInsn(POP);
mv.visitInsn(DCONST_0);
mv.visitInsn(DRETURN);
mv.visitLabel(label);
AsmUtil.doubleValue(mv);
}
mv.visitInsn(DRETURN);
break;
default:
mv.visitInsn(ARETURN);
break;
}
}