private static void analyseMethod()

in core/src/main/java/com/spotify/missinglink/ClassLoader.java [144:196]
49 lines of code
8 McCabe index (conditional complexity)

  private static void analyseMethod(
      String className,
      MethodNode method,
      Map<MethodDescriptor, DeclaredMethod> declaredMethods,
      Set<ClassTypeDescriptor> loadedClasses) {
    final Set<CalledMethod> thisCalls = new HashSet<>();
    final Set<AccessedField> thisFields = new HashSet<>();

    int lineNumber = 0;
    final List<AbstractInsnNode> instructions = toList(method.instructions.iterator());

    for (final AbstractInsnNode insn : instructions) {
      try {
        if (insn instanceof LineNumberNode) {
          lineNumber = ((LineNumberNode) insn).line;
        }
        if (insn instanceof MethodInsnNode) {
          handleMethodCall(
              thisCalls,
              lineNumber,
              (MethodInsnNode) insn,
              getTryCatchBlocksProtecting(instructions, insn, method));
        }
        if (insn instanceof FieldInsnNode) {
          handleFieldAccess(
              thisFields,
              lineNumber,
              (FieldInsnNode) insn,
              getTryCatchBlocksProtecting(instructions, insn, method));
        }
        if (insn instanceof LdcInsnNode) {
          handleLdc(loadedClasses, (LdcInsnNode) insn);
        }
      } catch (Exception e) {
        throw new MissingLinkException(
            "Error analysing " + className + "." + method.name + ", line: " + lineNumber, e);
      }
    }

    final DeclaredMethod declaredMethod =
        new DeclaredMethodBuilder()
            .descriptor(MethodDescriptors.fromDesc(method.desc, method.name))
            .lineNumber(lineNumber)
            .methodCalls(thisCalls)
            .fieldAccesses(thisFields)
            .isStatic((method.access & Opcodes.ACC_STATIC) != 0)
            .build();

    if (declaredMethods.put(declaredMethod.descriptor(), declaredMethod) != null) {
      throw new RuntimeException(
          "Multiple definitions of " + declaredMethod.descriptor() + " in class " + className);
    }
  }