Decompiling Java

APPENDIX A

Classfile Grammar

Although the complete code is on the Apress web site (http://www.apress.com), I have included the complete CUP specification here (see Listing A-1). All the underlying code has been removed, but it does provide an overview of a classfile’s bytecode grammar.

Listing A-1. Bytcode Grammar

terminal ROOT, MAGICNUM, MAJORVER, MINORVER, CPCOUNT, CONSTPOOL, CPTAG;terminal CPINDEX, TYPETAG, ACCFLAGS, XROOT, XMAGICNUM, XMAJORVER;terminal XMINORVER, XCPCOUNT, XCONSTPOOL, XCPTAG, XCPINDEX, XTYPETAG;terminal XACCFLAGS, NAMEINDEX, DESCINDEX, VALTAG, THISCL, SUPERCL, INTCNT;terminal INTERFACES, FIELDCNT, FIELDS, FIELD, XNAMEINDEX, XDESCINDEX;terminal XVALTAG, XTHISCL, XSUPERCL, XINTCNT, XINTERFACES, XFIELDCNT;terminal XFIELDS, ...