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

The following examples show how to use com.sun.org.apache.bcel.internal.Constants#T_INT . 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: BasicType.java    From jdk1.8-source-analysis with Apache License 2.0 6 votes vote down vote up 
public static final BasicType getType(byte type) {
  switch(type) {
  case Constants.T_VOID:    return VOID;
  case Constants.T_BOOLEAN: return BOOLEAN;
  case Constants.T_BYTE:    return BYTE;
  case Constants.T_SHORT:   return SHORT;
  case Constants.T_CHAR:    return CHAR;
  case Constants.T_INT:     return INT;
  case Constants.T_LONG:    return LONG;
  case Constants.T_DOUBLE:  return DOUBLE;
  case Constants.T_FLOAT:   return FLOAT;

  default:
    throw new ClassGenException("Invalid type: " + type);
  }
}
Example 2
Source File: InstructionFactory.java    From openjdk-jdk8u with GNU General Public License v2.0 6 votes vote down vote up 
/** Create "null" value for reference types, 0 for basic types like int
 */
public static Instruction createNull(Type type) {
  switch(type.getType()) {
  case Constants.T_ARRAY:
  case Constants.T_OBJECT:  return ACONST_NULL;
  case Constants.T_INT:
  case Constants.T_SHORT:
  case Constants.T_BOOLEAN:
  case Constants.T_CHAR:
  case Constants.T_BYTE:    return ICONST_0;
  case Constants.T_FLOAT:   return FCONST_0;
  case Constants.T_DOUBLE:  return DCONST_0;
  case Constants.T_LONG:    return LCONST_0;
  case Constants.T_VOID:    return NOP;

  default:
    throw new RuntimeException("Invalid type: " + type);
  }
}
Example 3
Source File: BasicType.java    From openjdk-jdk8u with GNU General Public License v2.0 6 votes vote down vote up 
public static final BasicType getType(byte type) {
  switch(type) {
  case Constants.T_VOID:    return VOID;
  case Constants.T_BOOLEAN: return BOOLEAN;
  case Constants.T_BYTE:    return BYTE;
  case Constants.T_SHORT:   return SHORT;
  case Constants.T_CHAR:    return CHAR;
  case Constants.T_INT:     return INT;
  case Constants.T_LONG:    return LONG;
  case Constants.T_DOUBLE:  return DOUBLE;
  case Constants.T_FLOAT:   return FLOAT;

  default:
    throw new ClassGenException("Invalid type: " + type);
  }
}
Example 4
Source File: FieldGen.java    From openjdk-jdk8u with GNU General Public License v2.0 6 votes vote down vote up 
private int addConstant() {
  switch(type.getType()) {
  case Constants.T_INT: case Constants.T_CHAR: case Constants.T_BYTE:
  case Constants.T_BOOLEAN: case Constants.T_SHORT:
    return cp.addInteger(((Integer)value).intValue());

  case Constants.T_FLOAT:
    return cp.addFloat(((Float)value).floatValue());

  case Constants.T_DOUBLE:
    return cp.addDouble(((Double)value).doubleValue());

  case Constants.T_LONG:
    return cp.addLong(((Long)value).longValue());

  case Constants.T_REFERENCE:
    return cp.addString(((String)value));

  default:
    throw new RuntimeException("Oops: Unhandled : " + type.getType());
  }
}
Example 5
Source File: InstructionFactory.java    From TencentKona-8 with GNU General Public License v2.0 6 votes vote down vote up 
/**
 * @param index index of local variable
 */
public static LocalVariableInstruction createStore(Type type, int index) {
  switch(type.getType()) {
  case Constants.T_BOOLEAN:
  case Constants.T_CHAR:
  case Constants.T_BYTE:
  case Constants.T_SHORT:
  case Constants.T_INT:    return new ISTORE(index);
  case Constants.T_FLOAT:  return new FSTORE(index);
  case Constants.T_DOUBLE: return new DSTORE(index);
  case Constants.T_LONG:   return new LSTORE(index);
  case Constants.T_ARRAY:
  case Constants.T_OBJECT: return new ASTORE(index);
  default:       throw new RuntimeException("Invalid type " + type);
  }
}
Example 6
Source File: Utility.java    From openjdk-8 with GNU General Public License v2.0 6 votes vote down vote up 
/**
 * Return type of signature as a byte value as defined in <em>Constants</em>
 *
 * @param  signature in format described above
 * @return type of signature
 * @see    Constants
 */
public static final byte typeOfSignature(String signature)
  throws ClassFormatException
{
  try {
    switch(signature.charAt(0)) {
    case 'B' : return Constants.T_BYTE;
    case 'C' : return Constants.T_CHAR;
    case 'D' : return Constants.T_DOUBLE;
    case 'F' : return Constants.T_FLOAT;
    case 'I' : return Constants.T_INT;
    case 'J' : return Constants.T_LONG;
    case 'L' : return Constants.T_REFERENCE;
    case '[' : return Constants.T_ARRAY;
    case 'V' : return Constants.T_VOID;
    case 'Z' : return Constants.T_BOOLEAN;
    case 'S' : return Constants.T_SHORT;
    default:
      throw new ClassFormatException("Invalid method signature: " + signature);
    }
  } catch(StringIndexOutOfBoundsException e) {
    throw new ClassFormatException("Invalid method signature: " + signature);
  }
}
Example 7
Source File: InstructionFactory.java    From openjdk-jdk8u with GNU General Public License v2.0 6 votes vote down vote up 
/**
 * @param index index of local variable
 */
public static LocalVariableInstruction createLoad(Type type, int index) {
  switch(type.getType()) {
  case Constants.T_BOOLEAN:
  case Constants.T_CHAR:
  case Constants.T_BYTE:
  case Constants.T_SHORT:
  case Constants.T_INT:    return new ILOAD(index);
  case Constants.T_FLOAT:  return new FLOAD(index);
  case Constants.T_DOUBLE: return new DLOAD(index);
  case Constants.T_LONG:   return new LLOAD(index);
  case Constants.T_ARRAY:
  case Constants.T_OBJECT: return new ALOAD(index);
  default:       throw new RuntimeException("Invalid type " + type);
  }
}
Example 8
Source File: InstructionFactory.java    From TencentKona-8 with GNU General Public License v2.0 6 votes vote down vote up 
public Instruction createAppend(Type type) {
  byte t = type.getType();

  if(isString(type))
    return createInvoke(append_mos[0], Constants.INVOKEVIRTUAL);

  switch(t) {
  case Constants.T_BOOLEAN:
  case Constants.T_CHAR:
  case Constants.T_FLOAT:
  case Constants.T_DOUBLE:
  case Constants.T_BYTE:
  case Constants.T_SHORT:
  case Constants.T_INT:
  case Constants.T_LONG
    :   return createInvoke(append_mos[t], Constants.INVOKEVIRTUAL);
  case Constants.T_ARRAY:
  case Constants.T_OBJECT:
    return createInvoke(append_mos[1], Constants.INVOKEVIRTUAL);
  default:
    throw new RuntimeException("Oops: No append for this type? " + type);
  }
}
Example 9
Source File: InstructionFactory.java    From jdk8u60 with GNU General Public License v2.0 6 votes vote down vote up 
/** Create "null" value for reference types, 0 for basic types like int
 */
public static Instruction createNull(Type type) {
  switch(type.getType()) {
  case Constants.T_ARRAY:
  case Constants.T_OBJECT:  return ACONST_NULL;
  case Constants.T_INT:
  case Constants.T_SHORT:
  case Constants.T_BOOLEAN:
  case Constants.T_CHAR:
  case Constants.T_BYTE:    return ICONST_0;
  case Constants.T_FLOAT:   return FCONST_0;
  case Constants.T_DOUBLE:  return DCONST_0;
  case Constants.T_LONG:    return LCONST_0;
  case Constants.T_VOID:    return NOP;

  default:
    throw new RuntimeException("Invalid type: " + type);
  }
}
Example 10
Source File: InstructionFactory.java    From JDKSourceCode1.8 with MIT License 6 votes vote down vote up 
/**
 * @param index index of local variable
 */
public static LocalVariableInstruction createStore(Type type, int index) {
  switch(type.getType()) {
  case Constants.T_BOOLEAN:
  case Constants.T_CHAR:
  case Constants.T_BYTE:
  case Constants.T_SHORT:
  case Constants.T_INT:    return new ISTORE(index);
  case Constants.T_FLOAT:  return new FSTORE(index);
  case Constants.T_DOUBLE: return new DSTORE(index);
  case Constants.T_LONG:   return new LSTORE(index);
  case Constants.T_ARRAY:
  case Constants.T_OBJECT: return new ASTORE(index);
  default:       throw new RuntimeException("Invalid type " + type);
  }
}
Example 11
Source File: InstructionFactory.java    From openjdk-8-source with GNU General Public License v2.0 6 votes vote down vote up 
/**
 * @param index index of local variable
 */
public static LocalVariableInstruction createStore(Type type, int index) {
  switch(type.getType()) {
  case Constants.T_BOOLEAN:
  case Constants.T_CHAR:
  case Constants.T_BYTE:
  case Constants.T_SHORT:
  case Constants.T_INT:    return new ISTORE(index);
  case Constants.T_FLOAT:  return new FSTORE(index);
  case Constants.T_DOUBLE: return new DSTORE(index);
  case Constants.T_LONG:   return new LSTORE(index);
  case Constants.T_ARRAY:
  case Constants.T_OBJECT: return new ASTORE(index);
  default:       throw new RuntimeException("Invalid type " + type);
  }
}
Example 12
Source File: InstructionFactory.java    From jdk1.8-source-analysis with Apache License 2.0 6 votes vote down vote up 
/** Create "null" value for reference types, 0 for basic types like int
 */
public static Instruction createNull(Type type) {
  switch(type.getType()) {
  case Constants.T_ARRAY:
  case Constants.T_OBJECT:  return ACONST_NULL;
  case Constants.T_INT:
  case Constants.T_SHORT:
  case Constants.T_BOOLEAN:
  case Constants.T_CHAR:
  case Constants.T_BYTE:    return ICONST_0;
  case Constants.T_FLOAT:   return FCONST_0;
  case Constants.T_DOUBLE:  return DCONST_0;
  case Constants.T_LONG:    return LCONST_0;
  case Constants.T_VOID:    return NOP;

  default:
    throw new RuntimeException("Invalid type: " + type);
  }
}
Example 13
Source File: InstructionFactory.java    From openjdk-8-source with GNU General Public License v2.0 6 votes vote down vote up 
/**
 * @param type type of elements of array, i.e., array.getElementType()
 */
public static ArrayInstruction createArrayLoad(Type type) {
  switch(type.getType()) {
  case Constants.T_BOOLEAN:
  case Constants.T_BYTE:   return BALOAD;
  case Constants.T_CHAR:   return CALOAD;
  case Constants.T_SHORT:  return SALOAD;
  case Constants.T_INT:    return IALOAD;
  case Constants.T_FLOAT:  return FALOAD;
  case Constants.T_DOUBLE: return DALOAD;
  case Constants.T_LONG:   return LALOAD;
  case Constants.T_ARRAY:
  case Constants.T_OBJECT: return AALOAD;
  default:       throw new RuntimeException("Invalid type " + type);
  }
}
Example 14
Source File: InstructionFactory.java    From openjdk-jdk8u-backup with GNU General Public License v2.0 6 votes vote down vote up 
/** Create "null" value for reference types, 0 for basic types like int
 */
public static Instruction createNull(Type type) {
  switch(type.getType()) {
  case Constants.T_ARRAY:
  case Constants.T_OBJECT:  return ACONST_NULL;
  case Constants.T_INT:
  case Constants.T_SHORT:
  case Constants.T_BOOLEAN:
  case Constants.T_CHAR:
  case Constants.T_BYTE:    return ICONST_0;
  case Constants.T_FLOAT:   return FCONST_0;
  case Constants.T_DOUBLE:  return DCONST_0;
  case Constants.T_LONG:    return LCONST_0;
  case Constants.T_VOID:    return NOP;

  default:
    throw new RuntimeException("Invalid type: " + type);
  }
}
Example 15
Source File: InstructionFactory.java    From JDKSourceCode1.8 with MIT License 6 votes vote down vote up 
/** Create typed return
 */
public static ReturnInstruction createReturn(Type type) {
  switch(type.getType()) {
  case Constants.T_ARRAY:
  case Constants.T_OBJECT:  return ARETURN;
  case Constants.T_INT:
  case Constants.T_SHORT:
  case Constants.T_BOOLEAN:
  case Constants.T_CHAR:
  case Constants.T_BYTE:    return IRETURN;
  case Constants.T_FLOAT:   return FRETURN;
  case Constants.T_DOUBLE:  return DRETURN;
  case Constants.T_LONG:    return LRETURN;
  case Constants.T_VOID:    return RETURN;

  default:
    throw new RuntimeException("Invalid type: " + type);
  }
}
Example 16
Source File: BasicType.java    From openjdk-jdk9 with GNU General Public License v2.0 6 votes vote down vote up 
public static final BasicType getType(byte type) {
  switch(type) {
  case Constants.T_VOID:    return VOID;
  case Constants.T_BOOLEAN: return BOOLEAN;
  case Constants.T_BYTE:    return BYTE;
  case Constants.T_SHORT:   return SHORT;
  case Constants.T_CHAR:    return CHAR;
  case Constants.T_INT:     return INT;
  case Constants.T_LONG:    return LONG;
  case Constants.T_DOUBLE:  return DOUBLE;
  case Constants.T_FLOAT:   return FLOAT;

  default:
    throw new ClassGenException("Invalid type: " + type);
  }
}
Example 17
Source File: InstructionFactory.java    From openjdk-jdk9 with GNU General Public License v2.0 6 votes vote down vote up 
/**
 * @param index index of local variable
 */
public static LocalVariableInstruction createStore(Type type, int index) {
  switch(type.getType()) {
  case Constants.T_BOOLEAN:
  case Constants.T_CHAR:
  case Constants.T_BYTE:
  case Constants.T_SHORT:
  case Constants.T_INT:    return new ISTORE(index);
  case Constants.T_FLOAT:  return new FSTORE(index);
  case Constants.T_DOUBLE: return new DSTORE(index);
  case Constants.T_LONG:   return new LSTORE(index);
  case Constants.T_ARRAY:
  case Constants.T_OBJECT: return new ASTORE(index);
  default:       throw new RuntimeException("Invalid type " + type);
  }
}
Example 18
Source File: InstructionFactory.java    From jdk1.8-source-analysis with Apache License 2.0 6 votes vote down vote up 
public Instruction createAppend(Type type) {
  byte t = type.getType();

  if(isString(type))
    return createInvoke(append_mos[0], Constants.INVOKEVIRTUAL);

  switch(t) {
  case Constants.T_BOOLEAN:
  case Constants.T_CHAR:
  case Constants.T_FLOAT:
  case Constants.T_DOUBLE:
  case Constants.T_BYTE:
  case Constants.T_SHORT:
  case Constants.T_INT:
  case Constants.T_LONG
    :   return createInvoke(append_mos[t], Constants.INVOKEVIRTUAL);
  case Constants.T_ARRAY:
  case Constants.T_OBJECT:
    return createInvoke(append_mos[1], Constants.INVOKEVIRTUAL);
  default:
    throw new RuntimeException("Oops: No append for this type? " + type);
  }
}
Example 19
Source File: InstructionFactory.java    From openjdk-jdk8u with GNU General Public License v2.0 5 votes vote down vote up 
/** Create conversion operation for two stack operands, this may be an I2C, instruction, e.g.,
 * if the operands are basic types and CHECKCAST if they are reference types.
 */
public Instruction createCast(Type src_type, Type dest_type) {
  if((src_type instanceof BasicType) && (dest_type instanceof BasicType)) {
    byte dest = dest_type.getType();
    byte src  = src_type.getType();

    if(dest == Constants.T_LONG && (src == Constants.T_CHAR || src == Constants.T_BYTE ||
                                    src == Constants.T_SHORT))
      src = Constants.T_INT;

    String[] short_names = { "C", "F", "D", "B", "S", "I", "L" };

    String name = "com.sun.org.apache.bcel.internal.generic." + short_names[src - Constants.T_CHAR] +
      "2" + short_names[dest - Constants.T_CHAR];

    Instruction i = null;
    try {
      i = (Instruction)java.lang.Class.forName(name).newInstance();
    } catch(Exception e) {
      throw new RuntimeException("Could not find instruction: " + name);
    }

    return i;
  } else if((src_type instanceof ReferenceType) && (dest_type instanceof ReferenceType)) {
    if(dest_type instanceof ArrayType)
      return new CHECKCAST(cp.addArrayClass((ArrayType)dest_type));
    else
      return new CHECKCAST(cp.addClass(((ObjectType)dest_type).getClassName()));
  }
  else
    throw new RuntimeException("Can not cast " + src_type + " to " + dest_type);
}
Example 20
Source File: InstructionFactory.java    From TencentKona-8 with GNU General Public License v2.0 5 votes vote down vote up 
/** Create conversion operation for two stack operands, this may be an I2C, instruction, e.g.,
 * if the operands are basic types and CHECKCAST if they are reference types.
 */
public Instruction createCast(Type src_type, Type dest_type) {
  if((src_type instanceof BasicType) && (dest_type instanceof BasicType)) {
    byte dest = dest_type.getType();
    byte src  = src_type.getType();

    if(dest == Constants.T_LONG && (src == Constants.T_CHAR || src == Constants.T_BYTE ||
                                    src == Constants.T_SHORT))
      src = Constants.T_INT;

    String[] short_names = { "C", "F", "D", "B", "S", "I", "L" };

    String name = "com.sun.org.apache.bcel.internal.generic." + short_names[src - Constants.T_CHAR] +
      "2" + short_names[dest - Constants.T_CHAR];

    Instruction i = null;
    try {
      i = (Instruction)java.lang.Class.forName(name).newInstance();
    } catch(Exception e) {
      throw new RuntimeException("Could not find instruction: " + name);
    }

    return i;
  } else if((src_type instanceof ReferenceType) && (dest_type instanceof ReferenceType)) {
    if(dest_type instanceof ArrayType)
      return new CHECKCAST(cp.addArrayClass((ArrayType)dest_type));
    else
      return new CHECKCAST(cp.addClass(((ObjectType)dest_type).getClassName()));
  }
  else
    throw new RuntimeException("Can not cast " + src_type + " to " + dest_type);
}