本文整理汇总了Java中org.codehaus.janino.Parser类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;
}
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;
}
}
}
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;
}
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;
}
}
}
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);
}
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);
}
}
}
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();
}
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();
}
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();
}
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();
}
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();
}
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();
}