File	Doc	Category	Size	Date	Package
InsnReadEnv.java	API Doc	Glassfish v2 API	3975	Fri May 04 22:34:28 BST 2007	com.sun.jdo.api.persistence.enhancer.classfile

InsnReadEnv

• java.lang.Object

Fields Summary
private CodeEnv	codeEnv
private byte[]	byteCodes
private int	currPc

Constructors Summary
InsnReadEnv(byte[] bytes, CodeEnv codeEnv) Constructor this.byteCodes = bytes; this.currPc = 0; this.codeEnv = codeEnv;

Methods Summary
int	currentPC() Return the index of the next instruction to decode return currPc;
byte	getByte() Get a single byte from the byte code stream if (!more()) throw new InsnError("out of byte codes");//NOI18N return byteCodes[currPc++];
int	getInt() Get an int from the byte code stream byte byte1 = byteCodes[currPc++]; byte byte2 = byteCodes[currPc++]; byte byte3 = byteCodes[currPc++]; byte byte4 = byteCodes[currPc++]; return (byte1 << 24) | ((byte2 & 0xff) << 16) | ((byte3 & 0xff) << 8) | (byte4 & 0xff);
int	getShort() Get a short from the byte code stream byte byte1 = byteCodes[currPc++]; byte byte2 = byteCodes[currPc++]; return (byte1 << 8) | (byte2 & 0xff);
InsnTarget	getTarget(int targ) Get the canonical InsnTarget instance for the specified pc within the method. return codeEnv.getTarget(targ);
int	getUByte() Get a single unsigned byte from the byte code stream return getByte() & 0xff;
int	getUShort() Get an unsigned short from the byte code stream return getShort() & 0xffff;
boolean	more() Are there more byte codes to decode? return currPc < byteCodes.length;
ConstantPool	pool() Get the constant pool which applies to the method being decoded return codeEnv.pool();