private static String addLineNumber()

in bytekit-core/src/main/java/com/alibaba/bytekit/utils/Decompiler.java [192:223]

• 32 lines of code
• 8 McCabe index (conditional complexity)

    private static String addLineNumber(String src, Map<Integer, Integer> lineMapping) {
        int maxLineNumber = 0;
        for (Integer value : lineMapping.values()) {
            if (value != null && value > maxLineNumber) {
                maxLineNumber = value;
            }
        }
        String formatStr = "/*%2d*/ ";
        String emptyStr = "       ";
        StringBuilder sb = new StringBuilder();
        String[] lines = src.split("\\R");
        ;
        if (maxLineNumber >= 1000) {
            formatStr = "/*%4d*/ ";
            emptyStr = "         ";
        } else if (maxLineNumber >= 100) {
            formatStr = "/*%3d*/ ";
            emptyStr = "        ";
        }
        int index = 0;
        for (String line : lines) {
            Integer srcLineNumber = lineMapping.get(index + 1);
            if (srcLineNumber != null) {
                sb.append(String.format(formatStr, srcLineNumber));
            } else {
                sb.append(emptyStr);
            }
            sb.append(line).append("\n");
            index++;
        }
        return sb.toString();
    }