程序包 org.beetl.ow2.asm.optimizer

类 MethodConstantsCollector

java.lang.Object
org.beetl.ow2.asm.MethodVisitor
org.beetl.ow2.asm.optimizer.MethodConstantsCollector
public class MethodConstantsCollector extends MethodVisitor
An MethodVisitor that collects the Constants of the methods it visits.
作者:
Eric Bruneton

  • 构造器详细资料

  • 方法详细资料

    • visitParameter

      public void visitParameter(String name, int access)
      从类复制的说明: MethodVisitor
      Visits a parameter of this method.
      覆盖:
      visitParameter 在类中 MethodVisitor
      参数:
      name - parameter className or null if none is provided.
      access - the parameter's access flags, only ACC_FINAL, ACC_SYNTHETIC or/and ACC_MANDATED are allowed (see Opcodes).

    • visitAnnotationDefault

      public AnnotationVisitor visitAnnotationDefault()
      从类复制的说明: MethodVisitor
      Visits the default value of this annotation interface method.
      覆盖:
      visitAnnotationDefault 在类中 MethodVisitor
      返回:
      a visitor to the visit the actual default value of this annotation interface method, or null if this visitor is not interested in visiting this default value. The 'className' parameters passed to the methods of this annotation visitor are ignored. Moreover, exacly one visit method must be called on this annotation visitor, followed by visitEnd.

    • visitAnnotation

      public AnnotationVisitor visitAnnotation(String desc, boolean visible)
      从类复制的说明: MethodVisitor
      Visits an annotation of this method.
      覆盖:
      visitAnnotation 在类中 MethodVisitor
      参数:
      desc - the class descriptor of the annotation class.
      visible - true if the annotation is visible at runtime.
      返回:
      a visitor to visit the annotation values, or null if this visitor is not interested in visiting this annotation.

    • visitTypeAnnotation

      public AnnotationVisitor visitTypeAnnotation(int typeRef, TypePath typePath, String desc, boolean visible)
      从类复制的说明: MethodVisitor
      Visits an annotation on a type in the method signature.
      覆盖:
      visitTypeAnnotation 在类中 MethodVisitor
      参数:
      typeRef - a reference to the annotated type. The sort of this type reference must be METHOD_TYPE_PARAMETER, METHOD_TYPE_PARAMETER_BOUND, METHOD_RETURN, METHOD_RECEIVER, METHOD_FORMAL_PARAMETER or THROWS. See TypeReference.
      typePath - the path to the annotated type argument, wildcard bound, array element type, or static inner type within 'typeRef'. May be null if the annotation targets 'typeRef' as a whole.
      desc - the class descriptor of the annotation class.
      visible - true if the annotation is visible at runtime.
      返回:
      a visitor to visit the annotation values, or null if this visitor is not interested in visiting this annotation.

    • visitParameterAnnotation

      public AnnotationVisitor visitParameterAnnotation(int parameter, String desc, boolean visible)
      从类复制的说明: MethodVisitor
      Visits an annotation of a parameter this method.
      覆盖:
      visitParameterAnnotation 在类中 MethodVisitor
      参数:
      parameter - the parameter index.
      desc - the class descriptor of the annotation class.
      visible - true if the annotation is visible at runtime.
      返回:
      a visitor to visit the annotation values, or null if this visitor is not interested in visiting this annotation.

    • visitTypeInsn

      public void visitTypeInsn(int opcode, String type)
      从类复制的说明: MethodVisitor
      Visits a type instruction. A type instruction is an instruction that takes the internal className of a class as parameter.
      覆盖:
      visitTypeInsn 在类中 MethodVisitor
      参数:
      opcode - the opcode of the type instruction to be visited. This opcode is either NEW, ANEWARRAY, CHECKCAST or INSTANCEOF.
      type - the operand of the instruction to be visited. This operand must be the internal className of an object or array class (see getInternalName).

    • visitFieldInsn

      public void visitFieldInsn(int opcode, String owner, String name, String desc)
      从类复制的说明: MethodVisitor
      Visits a field instruction. A field instruction is an instruction that loads or stores the value of a field of an object.
      覆盖:
      visitFieldInsn 在类中 MethodVisitor
      参数:
      opcode - the opcode of the type instruction to be visited. This opcode is either GETSTATIC, PUTSTATIC, GETFIELD or PUTFIELD.
      owner - the internal className of the field's owner class (see getInternalName).
      name - the field's className.
      desc - the field's descriptor (see Type).

    • visitMethodInsn

      public void visitMethodInsn(int opcode, String owner, String name, String desc, boolean itf)
      从类复制的说明: MethodVisitor
      Visits a method instruction. A method instruction is an instruction that invokes a method.
      覆盖:
      visitMethodInsn 在类中 MethodVisitor
      参数:
      opcode - the opcode of the type instruction to be visited. This opcode is either INVOKEVIRTUAL, INVOKESPECIAL, INVOKESTATIC or INVOKEINTERFACE.
      owner - the internal className of the method's owner class (see getInternalName).
      name - the method's className.
      desc - the method's descriptor (see Type).
      itf - if the method's owner class is an interface.

    • visitInvokeDynamicInsn

      public void visitInvokeDynamicInsn(String name, String desc, Handle bsm, Object... bsmArgs)
      从类复制的说明: MethodVisitor
      Visits an invokedynamic instruction.
      覆盖:
      visitInvokeDynamicInsn 在类中 MethodVisitor
      参数:
      name - the method's className.
      desc - the method's descriptor (see Type).
      bsm - the bootstrap method.
      bsmArgs - the bootstrap method constant arguments. Each argument must be an Integer, Float, Long, Double, String, Type or Handle value. This method is allowed to modify the content of the array so a caller should expect that this array may change.

    • visitLdcInsn

      public void visitLdcInsn(Object cst)
      从类复制的说明: MethodVisitor
      Visits a LDC instruction. Note that new constant types may be added in future versions of the Java Virtual Machine. To easily detect new constant types, implementations of this method should check for unexpected constant types, like this: 
       if (cst instanceof Integer) {
     // ...
 } else if (cst instanceof Float) {
     // ...
 } else if (cst instanceof Long) {
     // ...
 } else if (cst instanceof Double) {
     // ...
 } else if (cst instanceof String) {
     // ...
 } else if (cst instanceof Type) {
     int sort = ((Type) cst).getSort();
     if (sort == Type.OBJECT) {
         // ...
     } else if (sort == Type.ARRAY) {
         // ...
     } else if (sort == Type.METHOD) {
         // ...
     } else {
         // throw an exception
     }
 } else if (cst instanceof Handle) {
     // ...
 } else {
     // throw an exception
 }
      覆盖:
      visitLdcInsn 在类中 MethodVisitor
      参数:
      cst - the constant to be loaded on the stack. This parameter must be a non null Integer, a Float, a Long, a Double, a String, a Type of OBJECT or ARRAY sort for .class constants, for classes whose version is 49.0, a Type of METHOD sort or a Handle for MethodType and MethodHandle constants, for classes whose version is 51.0.

    • visitMultiANewArrayInsn

      public void visitMultiANewArrayInsn(String desc, int dims)
      从类复制的说明: MethodVisitor
      Visits a MULTIANEWARRAY instruction.
      覆盖:
      visitMultiANewArrayInsn 在类中 MethodVisitor
      参数:
      desc - an array type descriptor (see Type).
      dims - number of dimensions of the array to allocate.

    • visitInsnAnnotation

      public AnnotationVisitor visitInsnAnnotation(int typeRef, TypePath typePath, String desc, boolean visible)
      从类复制的说明: MethodVisitor
      Visits an annotation on an instruction. This method must be called just after the annotated instruction. It can be called several times for the same instruction.
      覆盖:
      visitInsnAnnotation 在类中 MethodVisitor
      参数:
      typeRef - a reference to the annotated type. The sort of this type reference must be INSTANCEOF, NEW, CONSTRUCTOR_REFERENCE, METHOD_REFERENCE, CAST, CONSTRUCTOR_INVOCATION_TYPE_ARGUMENT, METHOD_INVOCATION_TYPE_ARGUMENT, CONSTRUCTOR_REFERENCE_TYPE_ARGUMENT, or METHOD_REFERENCE_TYPE_ARGUMENT. See TypeReference.
      typePath - the path to the annotated type argument, wildcard bound, array element type, or static inner type within 'typeRef'. May be null if the annotation targets 'typeRef' as a whole.
      desc - the class descriptor of the annotation class.
      visible - true if the annotation is visible at runtime.
      返回:
      a visitor to visit the annotation values, or null if this visitor is not interested in visiting this annotation.

    • visitTryCatchBlock

      public void visitTryCatchBlock(Label start, Label end, Label handler, String type)
      从类复制的说明: MethodVisitor
      Visits a try catch block.
      覆盖:
      visitTryCatchBlock 在类中 MethodVisitor
      参数:
      start - beginning of the exception handler's scope (inclusive).
      end - end of the exception handler's scope (exclusive).
      handler - beginning of the exception handler's code.
      type - internal className of the type of exceptions handled by the handler, or null to catch any exceptions (for "finally" blocks).

    • visitTryCatchAnnotation

      public AnnotationVisitor visitTryCatchAnnotation(int typeRef, TypePath typePath, String desc, boolean visible)
      从类复制的说明: MethodVisitor
      Visits an annotation on an exception handler type. This method must be called after the MethodVisitor.visitTryCatchBlock(org.beetl.ow2.asm.Label, org.beetl.ow2.asm.Label, org.beetl.ow2.asm.Label, java.lang.String) for the annotated exception handler. It can be called several times for the same exception handler.
      覆盖:
      visitTryCatchAnnotation 在类中 MethodVisitor
      参数:
      typeRef - a reference to the annotated type. The sort of this type reference must be EXCEPTION_PARAMETER. See TypeReference.
      typePath - the path to the annotated type argument, wildcard bound, array element type, or static inner type within 'typeRef'. May be null if the annotation targets 'typeRef' as a whole.
      desc - the class descriptor of the annotation class.
      visible - true if the annotation is visible at runtime.
      返回:
      a visitor to visit the annotation values, or null if this visitor is not interested in visiting this annotation.

    • visitLocalVariable

      public void visitLocalVariable(String name, String desc, String signature, Label start, Label end, int index)
      从类复制的说明: MethodVisitor
      Visits a local variable declaration.
      覆盖:
      visitLocalVariable 在类中 MethodVisitor
      参数:
      name - the className of a local variable.
      desc - the type descriptor of this local variable.
      signature - the type signature of this local variable. May be null if the local variable type does not use generic types.
      start - the first instruction corresponding to the scope of this local variable (inclusive).
      end - the last instruction corresponding to the scope of this local variable (exclusive).
      index - the local variable's index.

    • visitLocalVariableAnnotation

      public AnnotationVisitor visitLocalVariableAnnotation(int typeRef, TypePath typePath, Label[] start, Label[] end, int[] index, String desc, boolean visible)
      从类复制的说明: MethodVisitor
      Visits an annotation on a local variable type.
      覆盖:
      visitLocalVariableAnnotation 在类中 MethodVisitor
      参数:
      typeRef - a reference to the annotated type. The sort of this type reference must be LOCAL_VARIABLE or RESOURCE_VARIABLE. See TypeReference.
      typePath - the path to the annotated type argument, wildcard bound, array element type, or static inner type within 'typeRef'. May be null if the annotation targets 'typeRef' as a whole.
      start - the fist instructions corresponding to the continuous ranges that make the scope of this local variable (inclusive).
      end - the last instructions corresponding to the continuous ranges that make the scope of this local variable (exclusive). This array must have the same size as the 'start' array.
      index - the local variable's index in each range. This array must have the same size as the 'start' array.
      desc - the class descriptor of the annotation class.
      visible - true if the annotation is visible at runtime.
      返回:
      a visitor to visit the annotation values, or null if this visitor is not interested in visiting this annotation.

    • visitLineNumber

      public void visitLineNumber(int line, Label start)
      从类复制的说明: MethodVisitor
      Visits a line number declaration.
      覆盖:
      visitLineNumber 在类中 MethodVisitor
      参数:
      line - a line number. This number refers to the srccode file from which the class was compiled.
      start - the first instruction corresponding to this line number.

    • visitMaxs

      public void visitMaxs(int maxStack, int maxLocals)
      从类复制的说明: MethodVisitor
      Visits the maximum stack size and the maximum number of local variables of the method.
      覆盖:
      visitMaxs 在类中 MethodVisitor
      参数:
      maxStack - maximum stack size of the method.
      maxLocals - maximum number of local variables for the method.