Java Code Examples for com.sun.org.apache.bcel.internal.Constants#ILOAD

The following examples show how to use com.sun.org.apache.bcel.internal.Constants#ILOAD . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example 1
Source File: LocalVariableInstruction.java    From openjdk-jdk8u-backup with GNU General Public License v2.0 6 votes vote down vote up 
/**
  * Read needed data (e.g. index) from file.
  * PRE: (ILOAD <= tag <= ALOAD_3) || (ISTORE <= tag <= ASTORE_3)
  */
 protected void initFromFile(ByteSequence bytes, boolean wide)
   throws IOException
 {
   if(wide) {
     n         = bytes.readUnsignedShort();
     length    = 4;
   } else if(((opcode >= Constants.ILOAD) &&
              (opcode <= Constants.ALOAD)) ||
             ((opcode >= Constants.ISTORE) &&
              (opcode <= Constants.ASTORE))) {
     n      = bytes.readUnsignedByte();
     length = 2;
   } else if(opcode <= Constants.ALOAD_3) { // compact load instruction such as ILOAD_2
     n      = (opcode - Constants.ILOAD_0) % 4;
     length = 1;
   } else { // Assert ISTORE_0 <= tag <= ASTORE_3
     n      = (opcode - Constants.ISTORE_0) % 4;
     length = 1;
   }
}
Example 2
Source File: LocalVariableInstruction.java    From openjdk-8 with GNU General Public License v2.0 6 votes vote down vote up 
/**
 * Returns the type associated with the instruction -
 * in case of ALOAD or ASTORE Type.OBJECT is returned.
 * This is just a bit incorrect, because ALOAD and ASTORE
 * may work on every ReferenceType (including Type.NULL) and
 * ASTORE may even work on a ReturnaddressType .
 * @return type associated with the instruction
 */
public Type getType(ConstantPoolGen cp) {
  switch(canon_tag) {
  case Constants.ILOAD: case Constants.ISTORE:
    return Type.INT;
  case Constants.LLOAD: case Constants.LSTORE:
    return Type.LONG;
  case Constants.DLOAD: case Constants.DSTORE:
    return Type.DOUBLE;
  case Constants.FLOAD: case Constants.FSTORE:
    return Type.FLOAT;
  case Constants.ALOAD: case Constants.ASTORE:
    return Type.OBJECT;

  default: throw new ClassGenException("Oops: unknown case in switch" + canon_tag);
  }
}
Example 3
Source File: LocalVariableInstruction.java    From openjdk-8 with GNU General Public License v2.0 6 votes vote down vote up 
/**
  * Read needed data (e.g. index) from file.
  * PRE: (ILOAD <= tag <= ALOAD_3) || (ISTORE <= tag <= ASTORE_3)
  */
 protected void initFromFile(ByteSequence bytes, boolean wide)
   throws IOException
 {
   if(wide) {
     n         = bytes.readUnsignedShort();
     length    = 4;
   } else if(((opcode >= Constants.ILOAD) &&
              (opcode <= Constants.ALOAD)) ||
             ((opcode >= Constants.ISTORE) &&
              (opcode <= Constants.ASTORE))) {
     n      = bytes.readUnsignedByte();
     length = 2;
   } else if(opcode <= Constants.ALOAD_3) { // compact load instruction such as ILOAD_2
     n      = (opcode - Constants.ILOAD_0) % 4;
     length = 1;
   } else { // Assert ISTORE_0 <= tag <= ASTORE_3
     n      = (opcode - Constants.ISTORE_0) % 4;
     length = 1;
   }
}
Example 4
Source File: LocalVariableInstruction.java    From openjdk-8-source with GNU General Public License v2.0 6 votes vote down vote up 
/**
 * Returns the type associated with the instruction -
 * in case of ALOAD or ASTORE Type.OBJECT is returned.
 * This is just a bit incorrect, because ALOAD and ASTORE
 * may work on every ReferenceType (including Type.NULL) and
 * ASTORE may even work on a ReturnaddressType .
 * @return type associated with the instruction
 */
public Type getType(ConstantPoolGen cp) {
  switch(canon_tag) {
  case Constants.ILOAD: case Constants.ISTORE:
    return Type.INT;
  case Constants.LLOAD: case Constants.LSTORE:
    return Type.LONG;
  case Constants.DLOAD: case Constants.DSTORE:
    return Type.DOUBLE;
  case Constants.FLOAD: case Constants.FSTORE:
    return Type.FLOAT;
  case Constants.ALOAD: case Constants.ASTORE:
    return Type.OBJECT;

  default: throw new ClassGenException("Oops: unknown case in switch" + canon_tag);
  }
}
Example 5
Source File: LocalVariableInstruction.java    From openjdk-8-source with GNU General Public License v2.0 6 votes vote down vote up 
/**
  * Read needed data (e.g. index) from file.
  * PRE: (ILOAD <= tag <= ALOAD_3) || (ISTORE <= tag <= ASTORE_3)
  */
 protected void initFromFile(ByteSequence bytes, boolean wide)
   throws IOException
 {
   if(wide) {
     n         = bytes.readUnsignedShort();
     length    = 4;
   } else if(((opcode >= Constants.ILOAD) &&
              (opcode <= Constants.ALOAD)) ||
             ((opcode >= Constants.ISTORE) &&
              (opcode <= Constants.ASTORE))) {
     n      = bytes.readUnsignedByte();
     length = 2;
   } else if(opcode <= Constants.ALOAD_3) { // compact load instruction such as ILOAD_2
     n      = (opcode - Constants.ILOAD_0) % 4;
     length = 1;
   } else { // Assert ISTORE_0 <= tag <= ASTORE_3
     n      = (opcode - Constants.ISTORE_0) % 4;
     length = 1;
   }
}
Example 6
Source File: LocalVariableInstruction.java    From hottub with GNU General Public License v2.0 6 votes vote down vote up 
/**
 * Returns the type associated with the instruction -
 * in case of ALOAD or ASTORE Type.OBJECT is returned.
 * This is just a bit incorrect, because ALOAD and ASTORE
 * may work on every ReferenceType (including Type.NULL) and
 * ASTORE may even work on a ReturnaddressType .
 * @return type associated with the instruction
 */
public Type getType(ConstantPoolGen cp) {
  switch(canon_tag) {
  case Constants.ILOAD: case Constants.ISTORE:
    return Type.INT;
  case Constants.LLOAD: case Constants.LSTORE:
    return Type.LONG;
  case Constants.DLOAD: case Constants.DSTORE:
    return Type.DOUBLE;
  case Constants.FLOAD: case Constants.FSTORE:
    return Type.FLOAT;
  case Constants.ALOAD: case Constants.ASTORE:
    return Type.OBJECT;

  default: throw new ClassGenException("Oops: unknown case in switch" + canon_tag);
  }
}
Example 7
Source File: LocalVariableInstruction.java    From hottub with GNU General Public License v2.0 6 votes vote down vote up 
/**
  * Read needed data (e.g. index) from file.
  * PRE: (ILOAD <= tag <= ALOAD_3) || (ISTORE <= tag <= ASTORE_3)
  */
 protected void initFromFile(ByteSequence bytes, boolean wide)
   throws IOException
 {
   if(wide) {
     n         = bytes.readUnsignedShort();
     length    = 4;
   } else if(((opcode >= Constants.ILOAD) &&
              (opcode <= Constants.ALOAD)) ||
             ((opcode >= Constants.ISTORE) &&
              (opcode <= Constants.ASTORE))) {
     n      = bytes.readUnsignedByte();
     length = 2;
   } else if(opcode <= Constants.ALOAD_3) { // compact load instruction such as ILOAD_2
     n      = (opcode - Constants.ILOAD_0) % 4;
     length = 1;
   } else { // Assert ISTORE_0 <= tag <= ASTORE_3
     n      = (opcode - Constants.ISTORE_0) % 4;
     length = 1;
   }
}
Example 8
Source File: LocalVariableInstruction.java    From openjdk-jdk9 with GNU General Public License v2.0 6 votes vote down vote up 
/**
 * Returns the type associated with the instruction -
 * in case of ALOAD or ASTORE Type.OBJECT is returned.
 * This is just a bit incorrect, because ALOAD and ASTORE
 * may work on every ReferenceType (including Type.NULL) and
 * ASTORE may even work on a ReturnaddressType .
 * @return type associated with the instruction
 */
public Type getType(ConstantPoolGen cp) {
  switch(canon_tag) {
  case Constants.ILOAD: case Constants.ISTORE:
    return Type.INT;
  case Constants.LLOAD: case Constants.LSTORE:
    return Type.LONG;
  case Constants.DLOAD: case Constants.DSTORE:
    return Type.DOUBLE;
  case Constants.FLOAD: case Constants.FSTORE:
    return Type.FLOAT;
  case Constants.ALOAD: case Constants.ASTORE:
    return Type.OBJECT;

  default: throw new ClassGenException("Oops: unknown case in switch" + canon_tag);
  }
}
Example 9
Source File: LocalVariableInstruction.java    From openjdk-jdk9 with GNU General Public License v2.0 6 votes vote down vote up 
/**
  * Read needed data (e.g. index) from file.
  * PRE: (ILOAD <= tag <= ALOAD_3) || (ISTORE <= tag <= ASTORE_3)
  */
 protected void initFromFile(ByteSequence bytes, boolean wide)
   throws IOException
 {
   if(wide) {
     n         = bytes.readUnsignedShort();
     length    = 4;
   } else if(((opcode >= Constants.ILOAD) &&
              (opcode <= Constants.ALOAD)) ||
             ((opcode >= Constants.ISTORE) &&
              (opcode <= Constants.ASTORE))) {
     n      = bytes.readUnsignedByte();
     length = 2;
   } else if(opcode <= Constants.ALOAD_3) { // compact load instruction such as ILOAD_2
     n      = (opcode - Constants.ILOAD_0) % 4;
     length = 1;
   } else { // Assert ISTORE_0 <= tag <= ASTORE_3
     n      = (opcode - Constants.ISTORE_0) % 4;
     length = 1;
   }
}
Example 10
Source File: LocalVariableInstruction.java    From openjdk-jdk8u-backup with GNU General Public License v2.0 6 votes vote down vote up 
/**
 * Returns the type associated with the instruction -
 * in case of ALOAD or ASTORE Type.OBJECT is returned.
 * This is just a bit incorrect, because ALOAD and ASTORE
 * may work on every ReferenceType (including Type.NULL) and
 * ASTORE may even work on a ReturnaddressType .
 * @return type associated with the instruction
 */
public Type getType(ConstantPoolGen cp) {
  switch(canon_tag) {
  case Constants.ILOAD: case Constants.ISTORE:
    return Type.INT;
  case Constants.LLOAD: case Constants.LSTORE:
    return Type.LONG;
  case Constants.DLOAD: case Constants.DSTORE:
    return Type.DOUBLE;
  case Constants.FLOAD: case Constants.FSTORE:
    return Type.FLOAT;
  case Constants.ALOAD: case Constants.ASTORE:
    return Type.OBJECT;

  default: throw new ClassGenException("Oops: unknown case in switch" + canon_tag);
  }
}
Example 11
Source File: LocalVariableInstruction.java    From jdk1.8-source-analysis with Apache License 2.0 6 votes vote down vote up 
/**
  * Read needed data (e.g. index) from file.
  * PRE: (ILOAD <= tag <= ALOAD_3) || (ISTORE <= tag <= ASTORE_3)
  */
 protected void initFromFile(ByteSequence bytes, boolean wide)
   throws IOException
 {
   if(wide) {
     n         = bytes.readUnsignedShort();
     length    = 4;
   } else if(((opcode >= Constants.ILOAD) &&
              (opcode <= Constants.ALOAD)) ||
             ((opcode >= Constants.ISTORE) &&
              (opcode <= Constants.ASTORE))) {
     n      = bytes.readUnsignedByte();
     length = 2;
   } else if(opcode <= Constants.ALOAD_3) { // compact load instruction such as ILOAD_2
     n      = (opcode - Constants.ILOAD_0) % 4;
     length = 1;
   } else { // Assert ISTORE_0 <= tag <= ASTORE_3
     n      = (opcode - Constants.ISTORE_0) % 4;
     length = 1;
   }
}
Example 12
Source File: LocalVariableInstruction.java    From openjdk-jdk8u with GNU General Public License v2.0 6 votes vote down vote up 
/**
 * Returns the type associated with the instruction -
 * in case of ALOAD or ASTORE Type.OBJECT is returned.
 * This is just a bit incorrect, because ALOAD and ASTORE
 * may work on every ReferenceType (including Type.NULL) and
 * ASTORE may even work on a ReturnaddressType .
 * @return type associated with the instruction
 */
public Type getType(ConstantPoolGen cp) {
  switch(canon_tag) {
  case Constants.ILOAD: case Constants.ISTORE:
    return Type.INT;
  case Constants.LLOAD: case Constants.LSTORE:
    return Type.LONG;
  case Constants.DLOAD: case Constants.DSTORE:
    return Type.DOUBLE;
  case Constants.FLOAD: case Constants.FSTORE:
    return Type.FLOAT;
  case Constants.ALOAD: case Constants.ASTORE:
    return Type.OBJECT;

  default: throw new ClassGenException("Oops: unknown case in switch" + canon_tag);
  }
}
Example 13
Source File: LocalVariableInstruction.java    From openjdk-jdk8u with GNU General Public License v2.0 6 votes vote down vote up 
/**
  * Read needed data (e.g. index) from file.
  * PRE: (ILOAD <= tag <= ALOAD_3) || (ISTORE <= tag <= ASTORE_3)
  */
 protected void initFromFile(ByteSequence bytes, boolean wide)
   throws IOException
 {
   if(wide) {
     n         = bytes.readUnsignedShort();
     length    = 4;
   } else if(((opcode >= Constants.ILOAD) &&
              (opcode <= Constants.ALOAD)) ||
             ((opcode >= Constants.ISTORE) &&
              (opcode <= Constants.ASTORE))) {
     n      = bytes.readUnsignedByte();
     length = 2;
   } else if(opcode <= Constants.ALOAD_3) { // compact load instruction such as ILOAD_2
     n      = (opcode - Constants.ILOAD_0) % 4;
     length = 1;
   } else { // Assert ISTORE_0 <= tag <= ASTORE_3
     n      = (opcode - Constants.ISTORE_0) % 4;
     length = 1;
   }
}
Example 14
Source File: LocalVariableInstruction.java    From JDKSourceCode1.8 with MIT License 6 votes vote down vote up 
/**
 * Returns the type associated with the instruction -
 * in case of ALOAD or ASTORE Type.OBJECT is returned.
 * This is just a bit incorrect, because ALOAD and ASTORE
 * may work on every ReferenceType (including Type.NULL) and
 * ASTORE may even work on a ReturnaddressType .
 * @return type associated with the instruction
 */
public Type getType(ConstantPoolGen cp) {
  switch(canon_tag) {
  case Constants.ILOAD: case Constants.ISTORE:
    return Type.INT;
  case Constants.LLOAD: case Constants.LSTORE:
    return Type.LONG;
  case Constants.DLOAD: case Constants.DSTORE:
    return Type.DOUBLE;
  case Constants.FLOAD: case Constants.FSTORE:
    return Type.FLOAT;
  case Constants.ALOAD: case Constants.ASTORE:
    return Type.OBJECT;

  default: throw new ClassGenException("Oops: unknown case in switch" + canon_tag);
  }
}
Example 15
Source File: LocalVariableInstruction.java    From JDKSourceCode1.8 with MIT License 6 votes vote down vote up 
/**
  * Read needed data (e.g. index) from file.
  * PRE: (ILOAD <= tag <= ALOAD_3) || (ISTORE <= tag <= ASTORE_3)
  */
 protected void initFromFile(ByteSequence bytes, boolean wide)
   throws IOException
 {
   if(wide) {
     n         = bytes.readUnsignedShort();
     length    = 4;
   } else if(((opcode >= Constants.ILOAD) &&
              (opcode <= Constants.ALOAD)) ||
             ((opcode >= Constants.ISTORE) &&
              (opcode <= Constants.ASTORE))) {
     n      = bytes.readUnsignedByte();
     length = 2;
   } else if(opcode <= Constants.ALOAD_3) { // compact load instruction such as ILOAD_2
     n      = (opcode - Constants.ILOAD_0) % 4;
     length = 1;
   } else { // Assert ISTORE_0 <= tag <= ASTORE_3
     n      = (opcode - Constants.ISTORE_0) % 4;
     length = 1;
   }
}
Example 16
Source File: LocalVariableInstruction.java    From jdk8u60 with GNU General Public License v2.0 6 votes vote down vote up 
/**
 * Returns the type associated with the instruction -
 * in case of ALOAD or ASTORE Type.OBJECT is returned.
 * This is just a bit incorrect, because ALOAD and ASTORE
 * may work on every ReferenceType (including Type.NULL) and
 * ASTORE may even work on a ReturnaddressType .
 * @return type associated with the instruction
 */
public Type getType(ConstantPoolGen cp) {
  switch(canon_tag) {
  case Constants.ILOAD: case Constants.ISTORE:
    return Type.INT;
  case Constants.LLOAD: case Constants.LSTORE:
    return Type.LONG;
  case Constants.DLOAD: case Constants.DSTORE:
    return Type.DOUBLE;
  case Constants.FLOAD: case Constants.FSTORE:
    return Type.FLOAT;
  case Constants.ALOAD: case Constants.ASTORE:
    return Type.OBJECT;

  default: throw new ClassGenException("Oops: unknown case in switch" + canon_tag);
  }
}
Example 17
Source File: LocalVariableInstruction.java    From jdk8u60 with GNU General Public License v2.0 6 votes vote down vote up 
/**
  * Read needed data (e.g. index) from file.
  * PRE: (ILOAD <= tag <= ALOAD_3) || (ISTORE <= tag <= ASTORE_3)
  */
 protected void initFromFile(ByteSequence bytes, boolean wide)
   throws IOException
 {
   if(wide) {
     n         = bytes.readUnsignedShort();
     length    = 4;
   } else if(((opcode >= Constants.ILOAD) &&
              (opcode <= Constants.ALOAD)) ||
             ((opcode >= Constants.ISTORE) &&
              (opcode <= Constants.ASTORE))) {
     n      = bytes.readUnsignedByte();
     length = 2;
   } else if(opcode <= Constants.ALOAD_3) { // compact load instruction such as ILOAD_2
     n      = (opcode - Constants.ILOAD_0) % 4;
     length = 1;
   } else { // Assert ISTORE_0 <= tag <= ASTORE_3
     n      = (opcode - Constants.ISTORE_0) % 4;
     length = 1;
   }
}
Example 18
Source File: LocalVariableInstruction.java    From TencentKona-8 with GNU General Public License v2.0 6 votes vote down vote up 
/**
 * Returns the type associated with the instruction -
 * in case of ALOAD or ASTORE Type.OBJECT is returned.
 * This is just a bit incorrect, because ALOAD and ASTORE
 * may work on every ReferenceType (including Type.NULL) and
 * ASTORE may even work on a ReturnaddressType .
 * @return type associated with the instruction
 */
public Type getType(ConstantPoolGen cp) {
  switch(canon_tag) {
  case Constants.ILOAD: case Constants.ISTORE:
    return Type.INT;
  case Constants.LLOAD: case Constants.LSTORE:
    return Type.LONG;
  case Constants.DLOAD: case Constants.DSTORE:
    return Type.DOUBLE;
  case Constants.FLOAD: case Constants.FSTORE:
    return Type.FLOAT;
  case Constants.ALOAD: case Constants.ASTORE:
    return Type.OBJECT;

  default: throw new ClassGenException("Oops: unknown case in switch" + canon_tag);
  }
}
Example 19
Source File: LocalVariableInstruction.java    From TencentKona-8 with GNU General Public License v2.0 6 votes vote down vote up 
/**
  * Read needed data (e.g. index) from file.
  * PRE: (ILOAD <= tag <= ALOAD_3) || (ISTORE <= tag <= ASTORE_3)
  */
 protected void initFromFile(ByteSequence bytes, boolean wide)
   throws IOException
 {
   if(wide) {
     n         = bytes.readUnsignedShort();
     length    = 4;
   } else if(((opcode >= Constants.ILOAD) &&
              (opcode <= Constants.ALOAD)) ||
             ((opcode >= Constants.ISTORE) &&
              (opcode <= Constants.ASTORE))) {
     n      = bytes.readUnsignedByte();
     length = 2;
   } else if(opcode <= Constants.ALOAD_3) { // compact load instruction such as ILOAD_2
     n      = (opcode - Constants.ILOAD_0) % 4;
     length = 1;
   } else { // Assert ISTORE_0 <= tag <= ASTORE_3
     n      = (opcode - Constants.ISTORE_0) % 4;
     length = 1;
   }
}
Example 20
Source File: LocalVariableInstruction.java    From jdk1.8-source-analysis with Apache License 2.0 6 votes vote down vote up 
/**
 * Returns the type associated with the instruction -
 * in case of ALOAD or ASTORE Type.OBJECT is returned.
 * This is just a bit incorrect, because ALOAD and ASTORE
 * may work on every ReferenceType (including Type.NULL) and
 * ASTORE may even work on a ReturnaddressType .
 * @return type associated with the instruction
 */
public Type getType(ConstantPoolGen cp) {
  switch(canon_tag) {
  case Constants.ILOAD: case Constants.ISTORE:
    return Type.INT;
  case Constants.LLOAD: case Constants.LSTORE:
    return Type.LONG;
  case Constants.DLOAD: case Constants.DSTORE:
    return Type.DOUBLE;
  case Constants.FLOAD: case Constants.FSTORE:
    return Type.FLOAT;
  case Constants.ALOAD: case Constants.ASTORE:
    return Type.OBJECT;

  default: throw new ClassGenException("Oops: unknown case in switch" + canon_tag);
  }
}