package net.minidev.asm;
import static org.objectweb.asm.Opcodes.CHECKCAST;
import static org.objectweb.asm.Opcodes.INVOKESTATIC;
import static org.objectweb.asm.Opcodes.INVOKEVIRTUAL;
import java.lang.reflect.Field;
import java.util.HashMap;
import org.objectweb.asm.Label;
import org.objectweb.asm.MethodVisitor;
import org.objectweb.asm.Type;
public class ASMUtil {
public static void autoBoxing(MethodVisitor mv, Class<?> clz) {
autoBoxing(mv, Type.getType(clz));
}
static public Accessor[] getAccessors(Class<?> type, FieldFilter filter) {
Class<?> nextClass = type;
HashMap<String, Accessor> map = new HashMap<String, Accessor>();
if (filter == null)
filter = BasicFiledFilter.SINGLETON;
while (nextClass != Object.class) {
Field[] declaredFields = nextClass.getDeclaredFields();
for (Field field : declaredFields) {
String fn = field.getName();
if (map.containsKey(fn))
continue;
Accessor acc = new Accessor(nextClass, field, filter);
if (!acc.isUsable())
continue;
map.put(fn, acc);
}
nextClass = nextClass.getSuperclass();
}
return map.values().toArray(new Accessor[map.size()]);
}
protected static void autoBoxing(MethodVisitor mv, Type fieldType) {
switch (fieldType.getSort()) {
case Type.BOOLEAN:
mv.visitMethodInsn(INVOKESTATIC, "java/lang/Boolean", "valueOf", "(Z)Ljava/lang/Boolean;");
break;
case Type.BYTE:
mv.visitMethodInsn(INVOKESTATIC, "java/lang/Byte", "valueOf", "(B)Ljava/lang/Byte;");
break;
case Type.CHAR:
mv.visitMethodInsn(INVOKESTATIC, "java/lang/Character", "valueOf", "(C)Ljava/lang/Character;");
break;
case Type.SHORT:
mv.visitMethodInsn(INVOKESTATIC, "java/lang/Short", "valueOf", "(S)Ljava/lang/Short;");
break;
case Type.INT:
mv.visitMethodInsn(INVOKESTATIC, "java/lang/Integer", "valueOf", "(I)Ljava/lang/Integer;");
break;
case Type.FLOAT:
mv.visitMethodInsn(INVOKESTATIC, "java/lang/Float", "valueOf", "(F)Ljava/lang/Float;");
break;
case Type.LONG:
mv.visitMethodInsn(INVOKESTATIC, "java/lang/Long", "valueOf", "(J)Ljava/lang/Long;");
break;
case Type.DOUBLE:
mv.visitMethodInsn(INVOKESTATIC, "java/lang/Double", "valueOf", "(D)Ljava/lang/Double;");
break;
}
}
protected static void autoUnBoxing1(MethodVisitor mv, Type fieldType) {
switch (fieldType.getSort()) {
case Type.BOOLEAN:
mv.visitTypeInsn(CHECKCAST, "java/lang/Boolean");
mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/Boolean", "booleanValue", "()Z");
break;
case Type.BYTE:
mv.visitTypeInsn(CHECKCAST, "java/lang/Byte");
mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/Byte", "byteValue", "()B");
break;
case Type.CHAR:
mv.visitTypeInsn(CHECKCAST, "java/lang/Character");
mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/Character", "charValue", "()C");
break;
case Type.SHORT:
mv.visitTypeInsn(CHECKCAST, "java/lang/Short");
mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/Short", "shortValue", "()S");
break;
case Type.INT:
mv.visitTypeInsn(CHECKCAST, "java/lang/Integer");
mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/Integer", "intValue", "()I");
break;
case Type.FLOAT:
mv.visitTypeInsn(CHECKCAST, "java/lang/Float");
mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/Float", "floatValue", "()F");
break;
case Type.LONG:
mv.visitTypeInsn(CHECKCAST, "java/lang/Long");
mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/Long", "longValue", "()J");
break;
case Type.DOUBLE:
mv.visitTypeInsn(CHECKCAST, "java/lang/Double");
mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/Double", "doubleValue", "()D");
break;
case Type.ARRAY:
mv.visitTypeInsn(CHECKCAST, fieldType.getInternalName());
break;
default:
mv.visitTypeInsn(CHECKCAST, fieldType.getInternalName());
}
}
protected static void autoUnBoxing2(MethodVisitor mv, Type fieldType) {
switch (fieldType.getSort()) {
case Type.BOOLEAN:
mv.visitTypeInsn(CHECKCAST, "java/lang/Boolean");
mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/Boolean", "booleanValue", "()Z");
break;
case Type.BYTE:
mv.visitTypeInsn(CHECKCAST, "java/lang/Number");
mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/Number", "byteValue", "()B");
break;
case Type.CHAR:
mv.visitTypeInsn(CHECKCAST, "java/lang/Character");
mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/Character", "charValue", "()C");
break;
case Type.SHORT:
mv.visitTypeInsn(CHECKCAST, "java/lang/Number");
mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/Number", "shortValue", "()S");
break;
case Type.INT:
mv.visitTypeInsn(CHECKCAST, "java/lang/Number");
mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/Number", "intValue", "()I");
break;
case Type.FLOAT:
mv.visitTypeInsn(CHECKCAST, "java/lang/Number");
mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/Number", "floatValue", "()F");
break;
case Type.LONG:
mv.visitTypeInsn(CHECKCAST, "java/lang/Number");
mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/Number", "longValue", "()J");
break;
case Type.DOUBLE:
mv.visitTypeInsn(CHECKCAST, "java/lang/Number");
mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/Number", "doubleValue", "()D");
break;
case Type.ARRAY:
mv.visitTypeInsn(CHECKCAST, fieldType.getInternalName());
break;
default:
mv.visitTypeInsn(CHECKCAST, fieldType.getInternalName());
}
}
public static Label[] newLabels(int cnt) {
Label[] r = new Label[cnt];
for (int i = 0; i < cnt; i++)
r[i] = new Label();
return r;
}
public static String getSetterName(String key) {
int len = key.length();
char[] b = new char[len + 3];
b[0] = 's';
b[1] = 'e';
b[2] = 't';
char c = key.charAt(0);
if (c >= 'a' && c <= 'z')
c += 'A' - 'a';
b[3] = c;
for (int i = 1; i < len; i++) {
b[i + 3] = key.charAt(i);
}
return new String(b);
}
public static String getGetterName(String key) {
int len = key.length();
char[] b = new char[len + 3];
b[0] = 'g';
b[1] = 'e';
b[2] = 't';
char c = key.charAt(0);
if (c >= 'a' && c <= 'z')
c += 'A' - 'a';
b[3] = c;
for (int i = 1; i < len; i++) {
b[i + 3] = key.charAt(i);
}
return new String(b);
}
public static String getIsName(String key) {
int len = key.length();
char[] b = new char[len + 2];
b[0] = 'i';
b[1] = 's';
char c = key.charAt(0);
if (c >= 'a' && c <= 'z')
c += 'A' - 'a';
b[2] = c;
for (int i = 1; i < len; i++) {
b[i + 2] = key.charAt(i);
}
return new String(b);
}
}