org.biojava.utils.bytecode

Class CodeUtils

java.lang.Object

org.biojava.utils.bytecode.CodeUtils

public class CodeUtils
extends Object

Utility code for things you will frequently need.

This class provides common constants representing access modifiers and types. There are also some utility methods for munging data.

Author:

Thomas Down, Matthew Pocock

Field Summary

Fields

Modifier and Type	Field and Description
static int	ACC_ABSTRACT
static int	ACC_FINAL
static int	ACC_INTERFACE
static int	ACC_NATIVE
static int	ACC_PRIVATE
static int	ACC_PROTECTED
static int	ACC_PUBLIC
static int	ACC_STATIC
static int	ACC_STRICT
static int	ACC_SUPER
static int	ACC_SYNCHRONIZED
static int	ACC_TRANSIENT
static int	ACC_VOLATILE
static CodeGenerator	DO_NOTHING
static CodeClass[]	EMPTY_LIST
static CodeClass	TYPE_BOOLEAN
static CodeClass	TYPE_BYTE
static CodeClass	TYPE_CHAR
static CodeClass	TYPE_DOUBLE
static CodeClass	TYPE_FLOAT
static CodeClass	TYPE_INT
static CodeClass	TYPE_LONG
static CodeClass	TYPE_OBJECT
static CodeClass	TYPE_SHORT
static CodeClass	TYPE_VOID

Constructor Summary

Constructors

Constructor and Description
CodeUtils()

Method Summary

Modifier and Type	Method and Description
static String	classListToString(CodeClass[] classes) Format an array of classes as a comma-seperated list.
static boolean	isFloatType(CodeClass cc) Returns true if the class is a floating point number.
static boolean	isIntegerType(CodeClass cc) Returns true if the class is an integer number.
static int	wordsForType(CodeClass cc) Number of words needed for local variables of this type.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

ACC_PUBLIC

public static final int ACC_PUBLIC

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Constant Field Values

ACC_PRIVATE

public static final int ACC_PRIVATE

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ACC_PROTECTED

public static final int ACC_PROTECTED

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Constant Field Values

ACC_STATIC

public static final int ACC_STATIC

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Constant Field Values

ACC_FINAL

public static final int ACC_FINAL

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Constant Field Values

ACC_SUPER

public static final int ACC_SUPER

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Constant Field Values

ACC_SYNCHRONIZED

public static final int ACC_SYNCHRONIZED

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Constant Field Values

ACC_VOLATILE

public static final int ACC_VOLATILE

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Constant Field Values

ACC_TRANSIENT

public static final int ACC_TRANSIENT

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Constant Field Values

ACC_NATIVE

public static final int ACC_NATIVE

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Constant Field Values

ACC_INTERFACE

public static final int ACC_INTERFACE

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Constant Field Values

ACC_ABSTRACT

public static final int ACC_ABSTRACT

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Constant Field Values

ACC_STRICT

public static final int ACC_STRICT

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Constant Field Values

TYPE_VOID

public static final CodeClass TYPE_VOID

TYPE_INT

public static final CodeClass TYPE_INT

TYPE_FLOAT

public static final CodeClass TYPE_FLOAT

TYPE_DOUBLE

public static final CodeClass TYPE_DOUBLE

TYPE_LONG

public static final CodeClass TYPE_LONG

TYPE_BYTE

public static final CodeClass TYPE_BYTE

TYPE_SHORT

public static final CodeClass TYPE_SHORT

TYPE_CHAR

public static final CodeClass TYPE_CHAR

TYPE_BOOLEAN

public static final CodeClass TYPE_BOOLEAN

TYPE_OBJECT

public static final CodeClass TYPE_OBJECT

EMPTY_LIST

public static final CodeClass[] EMPTY_LIST

DO_NOTHING

public static final CodeGenerator DO_NOTHING

Constructor Detail

CodeUtils

public CodeUtils()

Method Detail

classListToString

public static String classListToString(CodeClass[] classes)

Format an array of classes as a comma-seperated list.

The names of each class in classes will be seperated by a comma and a space and will use CodeClass.getName() to produce strings for each one. Their names will be present in the return value in the same order they are found in the classes array

Parameters:

classes - the array of classes to format

Returns:

a String containing the list of class names

wordsForType

public static int wordsForType(CodeClass cc)

Number of words needed for local variables of this type.

Longs and doubles require 2 words (64 bits), where as everything else needs 1 word (32 bits). Void needs no words. This just hides that knowledge.

Parameters:

cc - the CodeClass to check word size for

Returns:

number of words needed for this type

isFloatType

public static boolean isFloatType(CodeClass cc)

Returns true if the class is a floating point number.

Double and Float are floating point numbers. All other classes are not.

Parameters:

cc - the class to check

Returns:

true if the class can be used to represent floating point numbers

isIntegerType

public static boolean isIntegerType(CodeClass cc)

Returns true if the class is an integer number.

All numeric types are integer (whole number) types, except for the floating point types. All other classes are not integer types.

Parameters:

cc - the class to check

Returns:

true if the class can be used to represent integer numbers