本文整理汇总了Java中javassist.bytecode.ConstPool.getThisClassInfo方法的典型用法代码示例。如果您正苦于以下问题:Java ConstPool.getThisClassInfo方法的具体用法?Java ConstPool.getThisClassInfo怎么用?Java ConstPool.getThisClassInfo使用的例子?那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类javassist.bytecode.ConstPool
的用法示例。
在下文中一共展示了ConstPool.getThisClassInfo方法的8个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: addGetFieldHandlerMethod
import javassist.bytecode.ConstPool; //导入方法依赖的package包/类
private void addGetFieldHandlerMethod(ClassFile classfile)
throws CannotCompileException {
ConstPool cp = classfile.getConstPool();
int this_class_index = cp.getThisClassInfo();
MethodInfo minfo = new MethodInfo(cp, GETFIELDHANDLER_METHOD_NAME,
GETFIELDHANDLER_METHOD_DESCRIPTOR);
/* local variable | this | */
Bytecode code = new Bytecode(cp, 2, 1);
// aload_0 // load this
code.addAload(0);
// getfield // get field "$JAVASSIST_CALLBACK" defined already
code.addOpcode(Opcode.GETFIELD);
int field_index = cp.addFieldrefInfo(this_class_index,
HANDLER_FIELD_NAME, HANDLER_FIELD_DESCRIPTOR);
code.addIndex(field_index);
// areturn // return the value of the field
code.addOpcode(Opcode.ARETURN);
minfo.setCodeAttribute(code.toCodeAttribute());
minfo.setAccessFlags(AccessFlag.PUBLIC);
classfile.addMethod(minfo);
}
示例2: addSetFieldHandlerMethod
import javassist.bytecode.ConstPool; //导入方法依赖的package包/类
private void addSetFieldHandlerMethod(ClassFile classfile)
throws CannotCompileException {
ConstPool cp = classfile.getConstPool();
int this_class_index = cp.getThisClassInfo();
MethodInfo minfo = new MethodInfo(cp, SETFIELDHANDLER_METHOD_NAME,
SETFIELDHANDLER_METHOD_DESCRIPTOR);
/* local variables | this | callback | */
Bytecode code = new Bytecode(cp, 3, 3);
// aload_0 // load this
code.addAload(0);
// aload_1 // load callback
code.addAload(1);
// putfield // put field "$JAVASSIST_CALLBACK" defined already
code.addOpcode(Opcode.PUTFIELD);
int field_index = cp.addFieldrefInfo(this_class_index,
HANDLER_FIELD_NAME, HANDLER_FIELD_DESCRIPTOR);
code.addIndex(field_index);
// return
code.addOpcode(Opcode.RETURN);
minfo.setCodeAttribute(code.toCodeAttribute());
minfo.setAccessFlags(AccessFlag.PUBLIC);
classfile.addMethod(minfo);
}
示例3: addGetFieldHandlerMethod
import javassist.bytecode.ConstPool; //导入方法依赖的package包/类
private void addGetFieldHandlerMethod(ClassFile classfile) throws CannotCompileException, BadBytecode {
final ConstPool constPool = classfile.getConstPool();
final int thisClassInfo = constPool.getThisClassInfo();
final MethodInfo getterMethodInfo = new MethodInfo(
constPool,
GETFIELDHANDLER_METHOD_NAME,
GETFIELDHANDLER_METHOD_DESCRIPTOR
);
/* local variable | this | */
final Bytecode code = new Bytecode( constPool, 2, 1 );
// aload_0 // load this
code.addAload( 0 );
// getfield // get field "$JAVASSIST_CALLBACK" defined already
code.addOpcode( Opcode.GETFIELD );
final int fieldIndex = constPool.addFieldrefInfo( thisClassInfo, HANDLER_FIELD_NAME, HANDLER_FIELD_DESCRIPTOR );
code.addIndex( fieldIndex );
// areturn // return the value of the field
code.addOpcode( Opcode.ARETURN );
getterMethodInfo.setCodeAttribute( code.toCodeAttribute() );
getterMethodInfo.setAccessFlags( AccessFlag.PUBLIC );
final CodeAttribute codeAttribute = getterMethodInfo.getCodeAttribute();
if ( codeAttribute != null ) {
final StackMapTable smt = MapMaker.make( classPool, getterMethodInfo );
codeAttribute.setAttribute( smt );
}
classfile.addMethod( getterMethodInfo );
}
示例4: addSetFieldHandlerMethod
import javassist.bytecode.ConstPool; //导入方法依赖的package包/类
private void addSetFieldHandlerMethod(ClassFile classfile) throws CannotCompileException, BadBytecode {
final ConstPool constPool = classfile.getConstPool();
final int thisClassInfo = constPool.getThisClassInfo();
final MethodInfo methodInfo = new MethodInfo(
constPool,
SETFIELDHANDLER_METHOD_NAME,
SETFIELDHANDLER_METHOD_DESCRIPTOR
);
/* local variables | this | callback | */
final Bytecode code = new Bytecode(constPool, 3, 3);
// aload_0 : load this
code.addAload( 0 );
// aload_1 : load callback
code.addAload( 1 );
// putfield // put field "$JAVASSIST_CALLBACK" defined already
code.addOpcode( Opcode.PUTFIELD );
final int fieldIndex = constPool.addFieldrefInfo( thisClassInfo, HANDLER_FIELD_NAME, HANDLER_FIELD_DESCRIPTOR );
code.addIndex( fieldIndex );
// return
code.addOpcode( Opcode.RETURN );
methodInfo.setCodeAttribute( code.toCodeAttribute() );
methodInfo.setAccessFlags( AccessFlag.PUBLIC );
final CodeAttribute codeAttribute = methodInfo.getCodeAttribute();
if ( codeAttribute != null ) {
final StackMapTable smt = MapMaker.make( classPool, methodInfo );
codeAttribute.setAttribute( smt );
}
classfile.addMethod( methodInfo );
}
示例5: addReadMethod
import javassist.bytecode.ConstPool; //导入方法依赖的package包/类
private void addReadMethod(ClassFile classfile, FieldInfo finfo) throws CannotCompileException, BadBytecode {
final ConstPool constPool = classfile.getConstPool();
final int thisClassInfo = constPool.getThisClassInfo();
final String readMethodDescriptor = "()" + finfo.getDescriptor();
final MethodInfo readMethodInfo = new MethodInfo(
constPool,
EACH_READ_METHOD_PREFIX + finfo.getName(),
readMethodDescriptor
);
/* local variables | target obj | each oldvalue | */
final Bytecode code = new Bytecode(constPool, 5, 3);
// aload_0
code.addAload( 0 );
// getfield // get each field
code.addOpcode( Opcode.GETFIELD );
final int baseFieldIndex = constPool.addFieldrefInfo( thisClassInfo, finfo.getName(), finfo.getDescriptor() );
code.addIndex( baseFieldIndex );
// aload_0
code.addAload( 0 );
// invokeinterface : invoke Enabled.getInterceptFieldCallback()
final int enabledClassIndex = constPool.addClassInfo( FIELD_HANDLED_TYPE_NAME );
code.addInvokeinterface(
enabledClassIndex,
GETFIELDHANDLER_METHOD_NAME,
GETFIELDHANDLER_METHOD_DESCRIPTOR,
1
);
// ifnonnull
code.addOpcode( Opcode.IFNONNULL );
code.addIndex( 4 );
// *return // each type
addTypeDependDataReturn( code, finfo.getDescriptor() );
// *store_1 // each type
addTypeDependDataStore( code, finfo.getDescriptor(), 1 );
// aload_0
code.addAload( 0 );
// invokeinterface // invoke Enabled.getInterceptFieldCallback()
code.addInvokeinterface(
enabledClassIndex,
GETFIELDHANDLER_METHOD_NAME, GETFIELDHANDLER_METHOD_DESCRIPTOR,
1
);
// aload_0
code.addAload( 0 );
// ldc // name of the field
code.addLdc( finfo.getName() );
// *load_1 // each type
addTypeDependDataLoad( code, finfo.getDescriptor(), 1 );
// invokeinterface // invoke Callback.read*() // each type
addInvokeFieldHandlerMethod(
classfile, code, finfo.getDescriptor(),
true
);
// *return // each type
addTypeDependDataReturn( code, finfo.getDescriptor() );
readMethodInfo.setCodeAttribute( code.toCodeAttribute() );
readMethodInfo.setAccessFlags( AccessFlag.PUBLIC );
final CodeAttribute codeAttribute = readMethodInfo.getCodeAttribute();
if ( codeAttribute != null ) {
final StackMapTable smt = MapMaker.make( classPool, readMethodInfo );
codeAttribute.setAttribute( smt );
}
classfile.addMethod( readMethodInfo );
}
示例6: addWriteMethod
import javassist.bytecode.ConstPool; //导入方法依赖的package包/类
private void addWriteMethod(ClassFile classfile, FieldInfo finfo) throws CannotCompileException, BadBytecode {
final ConstPool constPool = classfile.getConstPool();
final int thisClassInfo = constPool.getThisClassInfo();
final String writeMethodDescriptor = "(" + finfo.getDescriptor() + ")V";
final MethodInfo writeMethodInfo = new MethodInfo(
constPool,
EACH_WRITE_METHOD_PREFIX+ finfo.getName(),
writeMethodDescriptor
);
/* local variables | target obj | each oldvalue | */
final Bytecode code = new Bytecode(constPool, 6, 3);
// aload_0
code.addAload( 0 );
// invokeinterface : enabled.getInterceptFieldCallback()
final int enabledClassIndex = constPool.addClassInfo( FIELD_HANDLED_TYPE_NAME );
code.addInvokeinterface(
enabledClassIndex,
GETFIELDHANDLER_METHOD_NAME, GETFIELDHANDLER_METHOD_DESCRIPTOR,
1
);
// ifnonnull (label1)
code.addOpcode( Opcode.IFNONNULL );
code.addIndex( 9 );
// aload_0
code.addAload( 0 );
// *load_1
addTypeDependDataLoad( code, finfo.getDescriptor(), 1 );
// putfield
code.addOpcode( Opcode.PUTFIELD );
final int baseFieldIndex = constPool.addFieldrefInfo( thisClassInfo, finfo.getName(), finfo.getDescriptor() );
code.addIndex( baseFieldIndex );
code.growStack( -Descriptor.dataSize( finfo.getDescriptor() ) );
// return ;
code.addOpcode( Opcode.RETURN );
// aload_0
code.addAload( 0 );
// dup
code.addOpcode( Opcode.DUP );
// invokeinterface // enabled.getInterceptFieldCallback()
code.addInvokeinterface(
enabledClassIndex,
GETFIELDHANDLER_METHOD_NAME,
GETFIELDHANDLER_METHOD_DESCRIPTOR,
1
);
// aload_0
code.addAload( 0 );
// ldc // field name
code.addLdc( finfo.getName() );
// aload_0
code.addAload( 0 );
// getfield // old value of the field
code.addOpcode( Opcode.GETFIELD );
code.addIndex( baseFieldIndex );
code.growStack( Descriptor.dataSize( finfo.getDescriptor() ) - 1 );
// *load_1
addTypeDependDataLoad( code, finfo.getDescriptor(), 1 );
// invokeinterface // callback.write*(..)
addInvokeFieldHandlerMethod( classfile, code, finfo.getDescriptor(), false );
// putfield // new value of the field
code.addOpcode( Opcode.PUTFIELD );
code.addIndex( baseFieldIndex );
code.growStack( -Descriptor.dataSize( finfo.getDescriptor() ) );
// return
code.addOpcode( Opcode.RETURN );
writeMethodInfo.setCodeAttribute( code.toCodeAttribute() );
writeMethodInfo.setAccessFlags( AccessFlag.PUBLIC );
final CodeAttribute codeAttribute = writeMethodInfo.getCodeAttribute();
if ( codeAttribute != null ) {
final StackMapTable smt = MapMaker.make( classPool, writeMethodInfo );
codeAttribute.setAttribute( smt );
}
classfile.addMethod( writeMethodInfo );
}
示例7: addReadMethod
import javassist.bytecode.ConstPool; //导入方法依赖的package包/类
private void addReadMethod(ClassFile classfile, FieldInfo finfo)
throws CannotCompileException {
ConstPool cp = classfile.getConstPool();
int this_class_index = cp.getThisClassInfo();
String desc = "()" + finfo.getDescriptor();
MethodInfo minfo = new MethodInfo(cp, EACH_READ_METHOD_PREFIX
+ finfo.getName(), desc);
/* local variables | target obj | each oldvalue | */
Bytecode code = new Bytecode(cp, 5, 3);
// aload_0
code.addAload(0);
// getfield // get each field
code.addOpcode(Opcode.GETFIELD);
int base_field_index = cp.addFieldrefInfo(this_class_index, finfo
.getName(), finfo.getDescriptor());
code.addIndex(base_field_index);
// aload_0
code.addAload(0);
// invokeinterface // invoke Enabled.getInterceptFieldCallback()
int enabled_class_index = cp.addClassInfo(FIELD_HANDLED_TYPE_NAME);
code.addInvokeinterface(enabled_class_index,
GETFIELDHANDLER_METHOD_NAME, GETFIELDHANDLER_METHOD_DESCRIPTOR,
1);
// ifnonnull
code.addOpcode(Opcode.IFNONNULL);
code.addIndex(4);
// *return // each type
addTypeDependDataReturn(code, finfo.getDescriptor());
// *store_1 // each type
addTypeDependDataStore(code, finfo.getDescriptor(), 1);
// aload_0
code.addAload(0);
// invokeinterface // invoke Enabled.getInterceptFieldCallback()
code.addInvokeinterface(enabled_class_index,
GETFIELDHANDLER_METHOD_NAME, GETFIELDHANDLER_METHOD_DESCRIPTOR,
1);
// aload_0
code.addAload(0);
// ldc // name of the field
code.addLdc(finfo.getName());
// *load_1 // each type
addTypeDependDataLoad(code, finfo.getDescriptor(), 1);
// invokeinterface // invoke Callback.read*() // each type
addInvokeFieldHandlerMethod(classfile, code, finfo.getDescriptor(),
true);
// *return // each type
addTypeDependDataReturn(code, finfo.getDescriptor());
minfo.setCodeAttribute(code.toCodeAttribute());
minfo.setAccessFlags(AccessFlag.PUBLIC);
classfile.addMethod(minfo);
}
示例8: addWriteMethod
import javassist.bytecode.ConstPool; //导入方法依赖的package包/类
private void addWriteMethod(ClassFile classfile, FieldInfo finfo)
throws CannotCompileException {
ConstPool cp = classfile.getConstPool();
int this_class_index = cp.getThisClassInfo();
String desc = "(" + finfo.getDescriptor() + ")V";
MethodInfo minfo = new MethodInfo(cp, EACH_WRITE_METHOD_PREFIX
+ finfo.getName(), desc);
/* local variables | target obj | each oldvalue | */
Bytecode code = new Bytecode(cp, 6, 3);
// aload_0
code.addAload(0);
// invokeinterface // enabled.getInterceptFieldCallback()
int enabled_class_index = cp.addClassInfo(FIELD_HANDLED_TYPE_NAME);
code.addInvokeinterface(enabled_class_index,
GETFIELDHANDLER_METHOD_NAME, GETFIELDHANDLER_METHOD_DESCRIPTOR,
1);
// ifnonnull (label1)
code.addOpcode(Opcode.IFNONNULL);
code.addIndex(9);
// aload_0
code.addAload(0);
// *load_1
addTypeDependDataLoad(code, finfo.getDescriptor(), 1);
// putfield
code.addOpcode(Opcode.PUTFIELD);
int base_field_index = cp.addFieldrefInfo(this_class_index, finfo
.getName(), finfo.getDescriptor());
code.addIndex(base_field_index);
code.growStack(-Descriptor.dataSize(finfo.getDescriptor()));
// return ;
code.addOpcode(Opcode.RETURN);
// aload_0
code.addAload(0);
// dup
code.addOpcode(Opcode.DUP);
// invokeinterface // enabled.getInterceptFieldCallback()
code.addInvokeinterface(enabled_class_index,
GETFIELDHANDLER_METHOD_NAME, GETFIELDHANDLER_METHOD_DESCRIPTOR,
1);
// aload_0
code.addAload(0);
// ldc // field name
code.addLdc(finfo.getName());
// aload_0
code.addAload(0);
// getfield // old value of the field
code.addOpcode(Opcode.GETFIELD);
code.addIndex(base_field_index);
code.growStack(Descriptor.dataSize(finfo.getDescriptor()) - 1);
// *load_1
addTypeDependDataLoad(code, finfo.getDescriptor(), 1);
// invokeinterface // callback.write*(..)
addInvokeFieldHandlerMethod(classfile, code, finfo.getDescriptor(),
false);
// putfield // new value of the field
code.addOpcode(Opcode.PUTFIELD);
code.addIndex(base_field_index);
code.growStack(-Descriptor.dataSize(finfo.getDescriptor()));
// return
code.addOpcode(Opcode.RETURN);
minfo.setCodeAttribute(code.toCodeAttribute());
minfo.setAccessFlags(AccessFlag.PUBLIC);
classfile.addMethod(minfo);
}