Provides a framework for static code analysis based on the asm.tree package.
Basic usage:
ClassReader cr = new ClassReader(bytecode); ClassNode cn = new ClassNode(); cr.accept(cn, ClassReader.SKIP_DEBUG); List methods = cn.methods; for (int i = 0; i < methods.size(); ++i) { MethodNode method = (MethodNode) methods.get(i); if (method.instructions.size() > 0) { Analyzer a = new Analyzer(new BasicInterpreter()); a.analyze(cn.name, method); Frame[] frames = a.getFrames(); // Elements of the frames arrray now contains info for each instruction // from the analyzed method. BasicInterpreter creates BasicValue, that // is using simplified type system that distinguishes the UNINITIALZED, // INT, FLOAT, LONG, DOUBLE, REFERENCE and RETURNADDRESS types. ... } }
@since ASM 1.4.3