使用eclipse CDT解析CC++文件语法树

maven依赖

        <dependency>
            <groupId>org.eclipse.coregroupId>
            <artifactId>org.eclipse.core.resourcesartifactId>
            <version>3.7.100version>
        dependency>
        <dependency>
            <groupId>com.github.mhoffrog.attachedgroupId>
            <artifactId>org.eclipse.cdt.coreartifactId>
            <version>5.11.0version>
        dependency>

代码:

public class CDTTest {
    public static void main(String[] args) throws Exception {
        IASTTranslationUnit u = getTranslationUnit(new File("E:\xxx.c"));
        //输出的是⽂件的所有内容
        // System.out.println("simpleDeclaration.getRawSignature():" + u.getRawSignature());
        /**
         获取注释
         *
         */
        IASTComment[] com = u.getComments();
        for (IASTComment iastComment : com) {
            System.out.println("IASTComment:" + iastComment);
        }
        /**
         得到预处理语句
         *
         * #include 
         这⼀类
         * #define maxnum 120
         */
        IASTPreprocessorStatement[] ps = u.getAllPreprocessorStatements();
        for (IASTPreprocessorStatement iastPreprocessorStatement : ps) {
            System.out.println(iastPreprocessorStatement.getRawSignature());
        }

        //得到⽂件中定义的声明
        IASTDeclaration[] decs = u.getDeclarations();
        for (IASTDeclaration child : decs) {
            //    ⽅法声明
            if (child instanceof IASTFunctionDefinition) {
                // // 获得函数说明符
                // 例
                // void
                System.out.println(((IASTFunctionDefinition) child).getDeclSpecifier().getRawSignature());
                // 获得函数的函数声明符
                // 例 函数名
                System.out.println(((IASTFunctionDefinition) child).getDeclarator().getRawSignature());
                // 获得函数体的内容
                System.out.println(((IASTFunctionDefinition) child).getBody().getRawSignature());
                // 输出函数的全部内容
                System.out.println(child.getRawSignature());
                // 与函数的起始位置有关
                IASTFileLocation FileLocation = child.getFileLocation();
                int startLine = FileLocation.getStartingLineNumber();
                int endLine = FileLocation.getEndingLineNumber();
                System.out.println("length:" + (endLine - startLine));
            }
        }
    }

    /**
     * 创建解析单元
     *
     * @param source
     * @return
     * @throws Exception
     */
    static IASTTranslationUnit getTranslationUnit(File source) throws Exception {
        FileContent reader = FileContent.create(source.getAbsolutePath(), getContentFile(source).toCharArray());

        //C++ 用 GPPLanguage 解析
        //C 用 GCCLanguage 解析

        return GPPLanguage.getDefault()
            .getASTTranslationUnit(reader, new ScannerInfo(), IncludeFileContentProvider.getSavedFilesProvider(), null,
                ILanguage.OPTION_IS_SOURCE_UNIT, new DefaultLogService());
        //        return GCCLanguage.getDefault().getASTTranslationUnit(
        //                reader,
        //                new ScannerInfo(),
        //                IncludeFileContentProvider.getSavedFilesProvider(),
        //                null,
        //                ILanguage.OPTION_IS_SOURCE_UNIT,
        //                new DefaultLogService());
    }

    /**
     * 获得⽂件中的内容
     *
     * @param file
     * @return
     * @throws IOException
     */
    static String getContentFile(File file) throws IOException {
        StringBuilder content = new StringBuilder();
        String line;
        try (BufferedReader br = new BufferedReader(new InputStreamReader(new FileInputStream(file)))) {
            while ((line = br.readLine()) != null) {
                content.append(line).append('\n');
            }
        }
        return content.toString();
    }
}