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Java Parser类代码示例

原作者: [db:作者] 来自: [db:来源] 收藏 邀请

本文整理汇总了Java中org.codehaus.janino.Parser的典型用法代码示例。如果您正苦于以下问题:Java Parser类的具体用法?Java Parser怎么用?Java Parser使用的例子?那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。



Parser类属于org.codehaus.janino包,在下文中一共展示了Parser类的12个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于我们的系统推荐出更棒的Java代码示例。

示例1: getByteCode

import org.codehaus.janino.Parser; //导入依赖的package包/类
@Override
protected ClassBytes[] getByteCode(final ClassNames className, final String sourcecode, boolean debug)
    throws CompileException, IOException, ClassNotFoundException, ClassTransformationException {
  StringReader reader = new StringReader(sourcecode);
  Scanner scanner = new Scanner((String) null, reader);
  Java.CompilationUnit compilationUnit = new Parser(scanner).parseCompilationUnit();
  ClassFile[] classFiles = new UnitCompiler(compilationUnit, compilationClassLoader)
                                .compileUnit(debug, debug, debug);

  ClassBytes[] byteCodes = new ClassBytes[classFiles.length];
  for(int i = 0; i < classFiles.length; i++){
    ClassFile file = classFiles[i];
    byteCodes[i] = new ClassBytes(file.getThisClassName(), file.toByteArray());
  }
  return byteCodes;
}
 
开发者ID:dremio,项目名称:dremio-oss,代码行数:17,代码来源:JaninoClassCompiler.java


示例2: get

import org.codehaus.janino.Parser; //导入依赖的package包/类
private CompilationUnit get(Class<?> c) throws IOException {
    URL u = getSourceURL(c);
    try (Reader reader = Resources.asCharSource(u, UTF_8).openStream()) {
      String body = CharStreams.toString(reader);

      // TODO: Hack to remove annotations so Janino doesn't choke. Need to reconsider this problem...
      body = body.replaceAll("@\\w+(?:\\([^\\\\]*?\\))?", "");
      for(Replacement r : REPLACERS){
        body = r.apply(body);
      }
//       System.out.println("original");
      // System.out.println(body);;
      // System.out.println("decompiled");
      // System.out.println(decompile(c));

      try {
        return new Parser(new Scanner(null, new StringReader(body))).parseCompilationUnit();
      } catch (CompileException e) {
        logger.warn("Failure while parsing function class:\n{}", body, e);
        return null;
      }

    }

  }
 
开发者ID:dremio,项目名称:dremio-oss,代码行数:26,代码来源:FunctionInitializer.java


示例3: getByteCode

import org.codehaus.janino.Parser; //导入依赖的package包/类
@Override
protected byte[][] getByteCode(final ClassNames className, final String sourcecode)
    throws CompileException, IOException, ClassNotFoundException, ClassTransformationException {
  StringReader reader = new StringReader(sourcecode);
  Scanner scanner = new Scanner((String) null, reader);
  Java.CompilationUnit compilationUnit = new Parser(scanner).parseCompilationUnit();
  ClassFile[] classFiles = new UnitCompiler(compilationUnit, compilationClassLoader)
                                .compileUnit(this.debug, this.debug, this.debug);

  byte[][] byteCodes = new byte[classFiles.length][];
  for(int i = 0; i < classFiles.length; i++){
    byteCodes[i] = classFiles[i].toByteArray();
  }
  return byteCodes;
}
 
开发者ID:skhalifa,项目名称:QDrill,代码行数:16,代码来源:JaninoClassCompiler.java


示例4: get

import org.codehaus.janino.Parser; //导入依赖的package包/类
private CompilationUnit get(Class<?> c) throws IOException{
  String path = c.getName();
  path = path.replaceFirst("\\$.*", "");
  path = path.replace(".", FileUtils.separator);
  path = "/" + path + ".java";
  CompilationUnit cu = functionUnits.get(path);
  if(cu != null) {
    return cu;
  }

  URL u = Resources.getResource(c, path);
  InputSupplier<InputStream> supplier = Resources.newInputStreamSupplier(u);
  try (InputStream is = supplier.getInput()) {
    if (is == null) {
      throw new IOException(String.format("Failure trying to located source code for Class %s, tried to read on classpath location %s", c.getName(), path));
    }
    String body = IO.toString(is);

    //TODO: Hack to remove annotations so Janino doesn't choke.  Need to reconsider this problem...
    body = body.replaceAll("@\\w+(?:\\([^\\\\]*?\\))?", "");
    try{
      cu = new Parser(new Scanner(null, new StringReader(body))).parseCompilationUnit();
      functionUnits.put(path, cu);
      return cu;
    } catch (CompileException e) {
      logger.warn("Failure while parsing function class:\n{}", body, e);
      return null;
    }

  }

}
 
开发者ID:skhalifa,项目名称:QDrill,代码行数:33,代码来源:FunctionConverter.java


示例5: doCompile

import org.codehaus.janino.Parser; //导入依赖的package包/类
private ClassFile[] doCompile(final String sourceCode)
    throws CompileException, IOException, ClassNotFoundException {
  StringReader reader = new StringReader(sourceCode);
  Scanner scanner = new Scanner((String) null, reader);
  Java.CompilationUnit compilationUnit = new Parser(scanner).parseCompilationUnit();
  return new UnitCompiler(compilationUnit, compilationClassLoader)
                                .compileUnit(this.debug, this.debug, this.debug);
}
 
开发者ID:axbaretto,项目名称:drill,代码行数:9,代码来源:JaninoClassCompiler.java


示例6: convertToCompilationUnit

import org.codehaus.janino.Parser; //导入依赖的package包/类
/**
 * Using class name generates path to class source code (*.java),
 * reads its content as string and parses it into {@link org.codehaus.janino.Java.CompilationUnit}.
 *
 * @param clazz function class
 * @return compilation unit
 * @throws IOException if did not find class or could not load it
 */
private CompilationUnit convertToCompilationUnit(Class<?> clazz) throws IOException {
  String path = clazz.getName();
  path = path.replaceFirst("\\$.*", "");
  path = path.replace(".", DrillFileUtils.SEPARATOR);
  path = "/" + path + ".java";

  logger.trace("Loading function code from the {}", path);
  try (InputStream is = clazz.getResourceAsStream(path)) {
    if (is == null) {
      throw new IOException(String.format(
          "Failure trying to locate source code for class %s, tried to read on classpath location %s", clazz.getName(),
          path));
    }
    String body = IO.toString(is);

    // TODO: Hack to remove annotations so Janino doesn't choke. Need to reconsider this problem...
    body = body.replaceAll("@\\w+(?:\\([^\\\\]*?\\))?", "");
    try {
      return new Parser(new Scanner(null, new StringReader(body))).parseCompilationUnit();
    } catch (CompileException e) {
        throw new IOException(String.format("Failure while loading class %s.", clazz.getName()), e);
    }

  }

}
 
开发者ID:axbaretto,项目名称:drill,代码行数:35,代码来源:FunctionInitializer.java


示例7: compile

import org.codehaus.janino.Parser; //导入依赖的package包/类
public UnaryDoubleFunction compile(String expression) throws Exception {
	if (!java.util.regex.Pattern.matches(
			"^[a-zA-Z0-9+\\-()/\\* \t^%\\.\\?]+$", expression)) {
		throw new SecurityException();
	}

	String classPackage = getClass().getPackage().getName() + ".compiled";
	String className = "JaninoCompiledFastexpr"
			+ COMPILED_CLASS_INDEX.incrementAndGet();
	String source = "package " + classPackage + ";\n"
			+ "import static java.lang.Math.*;\n" + "public final class "
			+ className + " implements "
			+ UnaryDoubleFunction.class.getCanonicalName() + " {\n"
			+ "public double evaluate(double x) {\n"
			+ "return (" + expression + ");\n" + "}\n" + "}";
	Scanner scanner = new Scanner(null, new ByteArrayInputStream(
			source.getBytes("UTF-8")), "UTF-8");

	JaninoRestrictedClassLoader cl = new JaninoRestrictedClassLoader();
	UnitCompiler unitCompiler = new UnitCompiler(
			new Parser(scanner).parseCompilationUnit(),
			new ClassLoaderIClassLoader(cl));
	ClassFile[] classFiles = unitCompiler.compileUnit(true, true, true);
	Class<?> clazz = cl.defineClass(classPackage + "." + className,
			classFiles[0].toByteArray());

	return (UnaryDoubleFunction) clazz.newInstance();
}
 
开发者ID:cdman,项目名称:fast-java-expr-eval,代码行数:29,代码来源:JaninoFastexpr.java


示例8: compile

import org.codehaus.janino.Parser; //导入依赖的package包/类
public byte[] compile(final String name, final String source)
        throws Exception
{
    Parser p = new Parser(new Scanner(name, new StringReader(source)));
    UnitCompiler uc = new UnitCompiler(p.parseCompilationUnit(), CL);
    return uc.compileUnit(DebuggingInformation.ALL)[0].toByteArray();
}
 
开发者ID:nxmatic,项目名称:objectweb-asm-4.0,代码行数:8,代码来源:GASMifierTest.java


示例9: compile

import org.codehaus.janino.Parser; //导入依赖的package包/类
public static byte[] compile(final String name, final String source)
        throws Exception
{
    Parser p = new Parser(new Scanner(name, new StringReader(source)));
    UnitCompiler uc = new UnitCompiler(p.parseCompilationUnit(), CL);
    return uc.compileUnit(DebuggingInformation.ALL)[0].toByteArray();
}
 
开发者ID:nxmatic,项目名称:objectweb-asm-4.0,代码行数:8,代码来源:ASMifierTest.java


示例10: compile

import org.codehaus.janino.Parser; //导入依赖的package包/类
public byte[] compile(String name, String source) throws Exception {
    Parser p = new Parser(new Scanner(name, new StringReader(source)));
    UnitCompiler uc = new UnitCompiler(p.parseCompilationUnit(), CL);
    return uc.compileUnit(DebuggingInformation.ALL)[0].toByteArray();
}
 
开发者ID:typetools,项目名称:annotation-tools,代码行数:6,代码来源:GASMifierTest.java


示例11: compile

import org.codehaus.janino.Parser; //导入依赖的package包/类
public byte[] compile(final String name, final String source)
        throws Exception {
    Parser p = new Parser(new Scanner(name, new StringReader(source)));
    UnitCompiler uc = new UnitCompiler(p.parseCompilationUnit(), CL);
    return uc.compileUnit(DebuggingInformation.ALL)[0].toByteArray();
}
 
开发者ID:lrytz,项目名称:asm-legacy-svn-clone,代码行数:7,代码来源:GASMifierTest.java


示例12: compile

import org.codehaus.janino.Parser; //导入依赖的package包/类
public static byte[] compile(final String name, final String source)
        throws Exception {
    Parser p = new Parser(new Scanner(name, new StringReader(source)));
    UnitCompiler uc = new UnitCompiler(p.parseCompilationUnit(), CL);
    return uc.compileUnit(DebuggingInformation.ALL)[0].toByteArray();
}
 
开发者ID:lrytz,项目名称:asm-legacy-svn-clone,代码行数:7,代码来源:ASMifierTest.java



注:本文中的org.codehaus.janino.Parser类示例整理自Github/MSDocs等源码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。


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