com.goldencode.expr

Class Compiler.PrimitiveInfo

java.lang.Object

com.goldencode.expr.Compiler.PrimitiveInfo

Enclosing class:

Compiler

private static class Compiler.PrimitiveInfo
extends java.lang.Object

A helper class which stores information about the various primitive data types supported by the expression compiler. This includes:

• the width (in 32-bit slots) of a data value of the type;
• the signature of the type (i.e., the BaseType character identifier specified in the table on page 101 of The Java(TM) Virtual Machine Specification Second Edition);
• the class used to wrapper the data type (e.g., java.lang.Integer for type int);
• the name of the method used to "unwrap" the primitive data value from an instance of the associated wrapper class (e.g., intValue for java.lang.Integer).

This information is stored in the static Compiler.PRIMITIVES map, such that it can be looked up when assembling bytecode instructions (in place of switch statements).

Field Summary

Fields

Modifier and Type	Field and Description
(package private) java.lang.String	signature BaseType identifier for this primitive type
(package private) java.lang.String	unwrapMethod Name of wrapper class method used to unwrap primitive value
(package private) int	width Width (in 32-bit slots) of a data value of this primitive type
(package private) java.lang.Class	wrapperClass Class used to wrapper data values of this primitive type

Constructor Summary

Constructors

Constructor and Description
PrimitiveInfo(int width, java.lang.String signature, java.lang.Class wrapperClass, java.lang.String unwrapMethod) Convenience constructor which stores all required data fields.

Method Summary

Methods inherited from class java.lang.Object

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

Field Detail

width

int width

Width (in 32-bit slots) of a data value of this primitive type

signature

java.lang.String signature

BaseType identifier for this primitive type

wrapperClass

java.lang.Class wrapperClass

Class used to wrapper data values of this primitive type

unwrapMethod

java.lang.String unwrapMethod

Name of wrapper class method used to unwrap primitive value

Constructor Detail

PrimitiveInfo

PrimitiveInfo(int width,
              java.lang.String signature,
              java.lang.Class wrapperClass,
              java.lang.String unwrapMethod)

Convenience constructor which stores all required data fields.

Parameters:

width - Data value width.

signature - BaseType identifier.

wrapperClass - Wrapper class

unwrapMethod - Name of unwrap method.