mirror of
https://github.com/openjdk/jdk.git
synced 2025-09-20 19:14:38 +02:00
Initial load
This commit is contained in:
J. Duke
parent
686d76f772
commit
f57b87e8f6
2973 changed files with 295817 additions and 0 deletions
416
langtools/src/share/classes/sun/tools/javap/MethodData.java
Normal file
416
langtools/src/share/classes/sun/tools/javap/MethodData.java
Normal file
|
|
@ -0,0 +1,416 @@
|
|||
/*
|
||||
* Copyright 2002-2005 Sun Microsystems, Inc. All Rights Reserved.
|
||||
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
|
||||
*
|
||||
* This code is free software; you can redistribute it and/or modify it
|
||||
* under the terms of the GNU General Public License version 2 only, as
|
||||
* published by the Free Software Foundation. Sun designates this
|
||||
* particular file as subject to the "Classpath" exception as provided
|
||||
* by Sun in the LICENSE file that accompanied this code.
|
||||
*
|
||||
* This code is distributed in the hope that it will be useful, but WITHOUT
|
||||
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
||||
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
||||
* version 2 for more details (a copy is included in the LICENSE file that
|
||||
* accompanied this code).
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License version
|
||||
* 2 along with this work; if not, write to the Free Software Foundation,
|
||||
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
|
||||
*
|
||||
* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
|
||||
* CA 95054 USA or visit www.sun.com if you need additional information or
|
||||
* have any questions.
|
||||
*/
|
||||
|
||||
package sun.tools.javap;
|
||||
|
||||
import java.util.*;
|
||||
import java.io.*;
|
||||
|
||||
import static sun.tools.javap.RuntimeConstants.*;
|
||||
|
||||
/**
|
||||
* Strores method data informastion.
|
||||
*
|
||||
* @author Sucheta Dambalkar (Adopted code from jdis)
|
||||
*/
|
||||
public class MethodData {
|
||||
|
||||
ClassData cls;
|
||||
int access;
|
||||
int name_index;
|
||||
int descriptor_index;
|
||||
int attributes_count;
|
||||
byte[] code;
|
||||
Vector exception_table = new Vector(0);
|
||||
Vector lin_num_tb = new Vector(0);
|
||||
Vector loc_var_tb = new Vector(0);
|
||||
StackMapTableData[] stackMapTable;
|
||||
StackMapData[] stackMap;
|
||||
int[] exc_index_table=null;
|
||||
Vector attrs=new Vector(0);
|
||||
Vector code_attrs=new Vector(0);
|
||||
int max_stack, max_locals;
|
||||
boolean isSynthetic=false;
|
||||
boolean isDeprecated=false;
|
||||
|
||||
public MethodData(ClassData cls){
|
||||
this.cls=cls;
|
||||
}
|
||||
|
||||
/**
|
||||
* Read method info.
|
||||
*/
|
||||
public void read(DataInputStream in) throws IOException {
|
||||
access = in.readUnsignedShort();
|
||||
name_index=in.readUnsignedShort();
|
||||
descriptor_index =in.readUnsignedShort();
|
||||
int attributes_count = in.readUnsignedShort();
|
||||
for (int i = 0; i < attributes_count; i++) {
|
||||
int attr_name_index=in.readUnsignedShort();
|
||||
|
||||
readAttr: {
|
||||
if (cls.getTag(attr_name_index)==CONSTANT_UTF8) {
|
||||
String attr_name=cls.getString(attr_name_index);
|
||||
if ( attr_name.equals("Code")){
|
||||
readCode (in);
|
||||
AttrData attr=new AttrData(cls);
|
||||
attr.read(attr_name_index);
|
||||
attrs.addElement(attr);
|
||||
break readAttr;
|
||||
} else if ( attr_name.equals("Exceptions")){
|
||||
readExceptions(in);
|
||||
AttrData attr=new AttrData(cls);
|
||||
attr.read(attr_name_index);
|
||||
attrs.addElement(attr);
|
||||
break readAttr;
|
||||
} else if (attr_name.equals("Synthetic")){
|
||||
if (in.readInt()!=0)
|
||||
throw new ClassFormatError("invalid Synthetic attr length");
|
||||
isSynthetic=true;
|
||||
AttrData attr=new AttrData(cls);
|
||||
attr.read(attr_name_index);
|
||||
attrs.addElement(attr);
|
||||
break readAttr;
|
||||
} else if (attr_name.equals("Deprecated")){
|
||||
if (in.readInt()!=0)
|
||||
throw new ClassFormatError("invalid Synthetic attr length");
|
||||
isDeprecated = true;
|
||||
AttrData attr=new AttrData(cls);
|
||||
attr.read(attr_name_index);
|
||||
attrs.addElement(attr);
|
||||
break readAttr;
|
||||
}
|
||||
}
|
||||
AttrData attr=new AttrData(cls);
|
||||
attr.read(attr_name_index, in);
|
||||
attrs.addElement(attr);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Read code attribute info.
|
||||
*/
|
||||
public void readCode(DataInputStream in) throws IOException {
|
||||
|
||||
int attr_length = in.readInt();
|
||||
max_stack=in.readUnsignedShort();
|
||||
max_locals=in.readUnsignedShort();
|
||||
int codelen=in.readInt();
|
||||
|
||||
code=new byte[codelen];
|
||||
int totalread = 0;
|
||||
while(totalread < codelen){
|
||||
totalread += in.read(code, totalread, codelen-totalread);
|
||||
}
|
||||
// in.read(code, 0, codelen);
|
||||
int clen = 0;
|
||||
readExceptionTable(in);
|
||||
int code_attributes_count = in.readUnsignedShort();
|
||||
|
||||
for (int k = 0 ; k < code_attributes_count ; k++) {
|
||||
int table_name_index=in.readUnsignedShort();
|
||||
int table_name_tag=cls.getTag(table_name_index);
|
||||
AttrData attr=new AttrData(cls);
|
||||
if (table_name_tag==CONSTANT_UTF8) {
|
||||
String table_name_tstr=cls.getString(table_name_index);
|
||||
if (table_name_tstr.equals("LineNumberTable")) {
|
||||
readLineNumTable(in);
|
||||
attr.read(table_name_index);
|
||||
} else if (table_name_tstr.equals("LocalVariableTable")) {
|
||||
readLocVarTable(in);
|
||||
attr.read(table_name_index);
|
||||
} else if (table_name_tstr.equals("StackMapTable")) {
|
||||
readStackMapTable(in);
|
||||
attr.read(table_name_index);
|
||||
} else if (table_name_tstr.equals("StackMap")) {
|
||||
readStackMap(in);
|
||||
attr.read(table_name_index);
|
||||
} else {
|
||||
attr.read(table_name_index, in);
|
||||
}
|
||||
code_attrs.addElement(attr);
|
||||
continue;
|
||||
}
|
||||
|
||||
attr.read(table_name_index, in);
|
||||
code_attrs.addElement(attr);
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Read exception table info.
|
||||
*/
|
||||
void readExceptionTable (DataInputStream in) throws IOException {
|
||||
int exception_table_len=in.readUnsignedShort();
|
||||
exception_table=new Vector(exception_table_len);
|
||||
for (int l = 0; l < exception_table_len; l++) {
|
||||
exception_table.addElement(new TrapData(in, l));
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Read LineNumberTable attribute info.
|
||||
*/
|
||||
void readLineNumTable (DataInputStream in) throws IOException {
|
||||
int attr_len = in.readInt(); // attr_length
|
||||
int lin_num_tb_len = in.readUnsignedShort();
|
||||
lin_num_tb=new Vector(lin_num_tb_len);
|
||||
for (int l = 0; l < lin_num_tb_len; l++) {
|
||||
lin_num_tb.addElement(new LineNumData(in));
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Read LocalVariableTable attribute info.
|
||||
*/
|
||||
void readLocVarTable (DataInputStream in) throws IOException {
|
||||
int attr_len=in.readInt(); // attr_length
|
||||
int loc_var_tb_len = in.readUnsignedShort();
|
||||
loc_var_tb = new Vector(loc_var_tb_len);
|
||||
for (int l = 0; l < loc_var_tb_len; l++) {
|
||||
loc_var_tb.addElement(new LocVarData(in));
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Read Exception attribute info.
|
||||
*/
|
||||
public void readExceptions(DataInputStream in) throws IOException {
|
||||
int attr_len=in.readInt(); // attr_length in prog
|
||||
int num_exceptions = in.readUnsignedShort();
|
||||
exc_index_table=new int[num_exceptions];
|
||||
for (int l = 0; l < num_exceptions; l++) {
|
||||
int exc=in.readShort();
|
||||
exc_index_table[l]=exc;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Read StackMapTable attribute info.
|
||||
*/
|
||||
void readStackMapTable(DataInputStream in) throws IOException {
|
||||
int attr_len = in.readInt(); //attr_length
|
||||
int stack_map_tb_len = in.readUnsignedShort();
|
||||
stackMapTable = new StackMapTableData[stack_map_tb_len];
|
||||
for (int i=0; i<stack_map_tb_len; i++) {
|
||||
stackMapTable[i] = StackMapTableData.getInstance(in, this);
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Read StackMap attribute info.
|
||||
*/
|
||||
void readStackMap(DataInputStream in) throws IOException {
|
||||
int attr_len = in.readInt(); //attr_length
|
||||
int stack_map_len = in.readUnsignedShort();
|
||||
stackMap = new StackMapData[stack_map_len];
|
||||
for (int i = 0; i<stack_map_len; i++) {
|
||||
stackMap[i] = new StackMapData(in, this);
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Return access of the method.
|
||||
*/
|
||||
public String[] getAccess(){
|
||||
|
||||
Vector v = new Vector();
|
||||
if ((access & ACC_PUBLIC) !=0) v.addElement("public");
|
||||
if ((access & ACC_PRIVATE) !=0) v.addElement("private");
|
||||
if ((access & ACC_PROTECTED) !=0) v.addElement("protected");
|
||||
if ((access & ACC_STATIC) !=0) v.addElement("static");
|
||||
if ((access & ACC_FINAL) !=0) v.addElement("final");
|
||||
if ((access & ACC_SYNCHRONIZED) !=0) v.addElement("synchronized");
|
||||
if ((access & ACC_NATIVE) !=0) v.addElement("native");
|
||||
if ((access & ACC_ABSTRACT) !=0) v.addElement("abstract");
|
||||
if ((access & ACC_STRICT) !=0) v.addElement("strictfp");
|
||||
|
||||
String[] accflags = new String[v.size()];
|
||||
v.copyInto(accflags);
|
||||
return accflags;
|
||||
}
|
||||
|
||||
/**
|
||||
* Return name of the method.
|
||||
*/
|
||||
public String getName(){
|
||||
return cls.getStringValue(name_index);
|
||||
}
|
||||
|
||||
/**
|
||||
* Return internal siganature of the method.
|
||||
*/
|
||||
public String getInternalSig(){
|
||||
return cls.getStringValue(descriptor_index);
|
||||
}
|
||||
|
||||
/**
|
||||
* Return java return type signature of method.
|
||||
*/
|
||||
public String getReturnType(){
|
||||
|
||||
String rttype = (new TypeSignature(getInternalSig())).getReturnType();
|
||||
return rttype;
|
||||
}
|
||||
|
||||
/**
|
||||
* Return java type parameter signature.
|
||||
*/
|
||||
public String getParameters(){
|
||||
String ptype = (new TypeSignature(getInternalSig())).getParameters();
|
||||
|
||||
return ptype;
|
||||
}
|
||||
|
||||
/**
|
||||
* Return code attribute data of a method.
|
||||
*/
|
||||
public byte[] getCode(){
|
||||
return code;
|
||||
}
|
||||
|
||||
/**
|
||||
* Return LineNumberTable size.
|
||||
*/
|
||||
public int getnumlines(){
|
||||
return lin_num_tb.size();
|
||||
}
|
||||
|
||||
/**
|
||||
* Return LineNumberTable
|
||||
*/
|
||||
public Vector getlin_num_tb(){
|
||||
return lin_num_tb;
|
||||
}
|
||||
|
||||
/**
|
||||
* Return LocalVariableTable size.
|
||||
*/
|
||||
public int getloc_var_tbsize(){
|
||||
return loc_var_tb.size();
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* Return LocalVariableTable.
|
||||
*/
|
||||
public Vector getloc_var_tb(){
|
||||
return loc_var_tb;
|
||||
}
|
||||
|
||||
/**
|
||||
* Return StackMap.
|
||||
*/
|
||||
public StackMapData[] getStackMap() {
|
||||
return stackMap;
|
||||
}
|
||||
|
||||
/**
|
||||
* Return StackMapTable.
|
||||
*/
|
||||
public StackMapTableData[] getStackMapTable() {
|
||||
return stackMapTable;
|
||||
}
|
||||
|
||||
/**
|
||||
* Return number of arguments of that method.
|
||||
*/
|
||||
public int getArgumentlength(){
|
||||
return new TypeSignature(getInternalSig()).getArgumentlength();
|
||||
}
|
||||
|
||||
/**
|
||||
* Return true if method is static
|
||||
*/
|
||||
public boolean isStatic(){
|
||||
if ((access & ACC_STATIC) !=0) return true;
|
||||
return false;
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* Return max depth of operand stack.
|
||||
*/
|
||||
public int getMaxStack(){
|
||||
return max_stack;
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* Return number of local variables.
|
||||
*/
|
||||
public int getMaxLocals(){
|
||||
return max_locals;
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* Return exception index table in Exception attribute.
|
||||
*/
|
||||
public int []get_exc_index_table(){
|
||||
return exc_index_table;
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* Return exception table in code attributre.
|
||||
*/
|
||||
public Vector getexception_table(){
|
||||
return exception_table;
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* Return method attributes.
|
||||
*/
|
||||
public Vector getAttributes(){
|
||||
return attrs;
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* Return code attributes.
|
||||
*/
|
||||
public Vector getCodeAttributes(){
|
||||
return code_attrs;
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* Return true if method id synthetic.
|
||||
*/
|
||||
public boolean isSynthetic(){
|
||||
return isSynthetic;
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* Return true if method is deprecated.
|
||||
*/
|
||||
public boolean isDeprecated(){
|
||||
return isDeprecated;
|
||||
}
|
||||
}
|
||||
Loading…
Add table
Add a link
Reference in a new issue