Example usage for org.objectweb.asm Opcodes ASM5

Introduction

In this page you can find the example usage for org.objectweb.asm Opcodes ASM5.

Prototype

int ASM5

To view the source code for org.objectweb.asm Opcodes ASM5.

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Usage

From source file:com.intellij.compiler.notNullVerification.NotNullVerifyingInstrumenter.java

License:Apache License

public NotNullVerifyingInstrumenter(final ClassVisitor classVisitor) {
    super(Opcodes.ASM5, classVisitor);
}

---

From source file:com.intellij.compiler.notNullVerification.NotNullVerifyingInstrumenter.java

License:Apache License

@Override
public MethodVisitor visitMethod(final int access, final String name, final String desc, final String signature,
        final String[] exceptions) {
    final Type[] args = Type.getArgumentTypes(desc);
    final Type returnType = Type.getReturnType(desc);
    final MethodVisitor v = cv.visitMethod(access, name, desc, signature, exceptions);
    return new MethodVisitor(Opcodes.ASM5, v) {

        private final List<Integer> myNotNullParams = new ArrayList<Integer>();
        private int mySyntheticCount = 0;
        private boolean myIsNotNull = false;
        private Label myStartGeneratedCodeLabel;

        @Override//from  w  w  w .java2  s  . co  m
        public AnnotationVisitor visitParameterAnnotation(final int parameter, final String anno,
                final boolean visible) {
            final AnnotationVisitor av = mv.visitParameterAnnotation(parameter, anno, visible);
            if (isReferenceType(args[parameter]) && anno.equals(NOT_NULL_TYPE)) {
                myNotNullParams.add(parameter);
            } else if (anno.equals(SYNTHETIC_TYPE)) {
                // see http://forge.ow2.org/tracker/?aid=307392&group_id=23&atid=100023&func=detail
                mySyntheticCount++;
            }
            return av;
        }

        @Override
        public AnnotationVisitor visitAnnotation(String anno, boolean isRuntime) {
            final AnnotationVisitor av = mv.visitAnnotation(anno, isRuntime);
            if (isReferenceType(returnType) && anno.equals(NOT_NULL_TYPE)) {
                myIsNotNull = true;
            }

            return av;
        }

        @Override
        public void visitCode() {
            if (myNotNullParams.size() > 0) {
                myStartGeneratedCodeLabel = new Label();
                mv.visitLabel(myStartGeneratedCodeLabel);
            }
            for (Integer param : myNotNullParams) {
                int var = ((access & ACC_STATIC) == 0) ? 1 : 0;
                for (int i = 0; i < param; ++i) {
                    var += args[i].getSize();
                }
                mv.visitVarInsn(ALOAD, var);

                Label end = new Label();
                mv.visitJumpInsn(IFNONNULL, end);

                generateThrow(IAE_CLASS_NAME,
                        String.format(NULL_ARG_MESSAGE, param - mySyntheticCount, myClassName, name), end);
            }
        }

        @Override
        public void visitLocalVariable(final String name, final String desc, final String signature,
                final Label start, final Label end, final int index) {
            final boolean isStatic = (access & ACC_STATIC) != 0;
            final boolean isParameter = isStatic ? index < args.length : index <= args.length;
            final Label label = (isParameter && myStartGeneratedCodeLabel != null) ? myStartGeneratedCodeLabel
                    : start;
            mv.visitLocalVariable(name, desc, signature, label, end, index);
        }

        @Override
        public void visitInsn(int opcode) {
            if (opcode == ARETURN) {
                if (myIsNotNull) {
                    mv.visitInsn(DUP);
                    final Label skipLabel = new Label();
                    mv.visitJumpInsn(IFNONNULL, skipLabel);
                    generateThrow(ISE_CLASS_NAME, String.format(NULL_RESULT_MESSAGE, myClassName, name),
                            skipLabel);
                }
            }

            mv.visitInsn(opcode);
        }

        private void generateThrow(final String exceptionClass, final String descr, final Label end) {
            mv.visitTypeInsn(NEW, exceptionClass);
            mv.visitInsn(DUP);
            mv.visitLdcInsn(descr);
            mv.visitMethodInsn(INVOKESPECIAL, exceptionClass, CONSTRUCTOR_NAME, EXCEPTION_INIT_SIGNATURE);
            mv.visitInsn(ATHROW);
            mv.visitLabel(end);

            myIsModification = true;
            processPostponedErrors();
        }

        @Override
        public void visitMaxs(final int maxStack, final int maxLocals) {
            try {
                super.visitMaxs(maxStack, maxLocals);
            } catch (Throwable e) {
                registerError(name, "visitMaxs", e);
            }
        }
    };
}

---

From source file:com.jitlogic.zorka.core.spy.SpyClassVisitor.java

License:Open Source License

/**
 * Creates Spy class visitor./*from   w w w. ja v  a2 s.c o m*/
 *
 * @param transformer parent class transformer
 * @param className   class name
 * @param sdefs       list of spy definitions to be applied
 * @param tracer      reference to tracer
 * @param cv          output class visitor (typically ClassWriter)
 */
public SpyClassVisitor(SpyClassTransformer transformer, ClassLoader classLoader, SymbolRegistry symbolRegistry,
        String className, List<SpyDefinition> sdefs, Tracer tracer, ClassVisitor cv) {
    super(Opcodes.ASM5, cv);
    this.transformer = transformer;
    this.classLoader = classLoader;
    this.symbolRegistry = symbolRegistry;
    this.className = className;
    this.sdefs = sdefs;
    this.tracer = tracer;

    for (SpyDefinition sdef : sdefs) {
        for (SpyMatcher matcher : sdef.getMatcherSet().getMatchers()) {
            if (matcher.hasFlags(SpyMatcher.RECURSIVE)) {
                recursive = true;
            }
        }
    }
}

---

From source file:com.liferay.portal.osgi.web.servlet.jsp.compiler.test.JspPrecompileTest.java

License:Open Source License

@Test
public void testPrecompiledJsp() throws Exception {
    String packagePathString = _JSP_PACKAGE_NAME.replace(CharPool.PERIOD, CharPool.SLASH);

    Path packagePath = _workDirPath.resolve(packagePathString);

    Files.createDirectories(packagePath);

    String jspClassName = _PRECOMPILE_JSP_FILE_NAME.replace(CharPool.PERIOD, CharPool.UNDERLINE);

    Path jspClassPath = packagePath.resolve(jspClassName.concat(".class"));

    final String className = packagePathString.concat(jspClassName);

    try (InputStream inputStream = PrecompileTestServlet.class
            .getResourceAsStream(PrecompileTestServlet.class.getSimpleName() + ".class");
            OutputStream outputStream = Files.newOutputStream(jspClassPath)) {

        ClassReader classReader = new ClassReader(inputStream);

        ClassWriter classWriter = new ClassWriter(classReader, 0);

        ClassVisitor classVisitor = new ClassVisitor(Opcodes.ASM5, classWriter) {

            @Override/* w ww . ja v a 2 s. c  o  m*/
            public void visit(int version, int access, String name, String signature, String superName,
                    String[] interfaces) {

                super.visit(version, access, className, signature, superName, interfaces);
            }

        };

        classReader.accept(classVisitor, 0);

        outputStream.write(classWriter.toByteArray());
    }

    try (CaptureAppender captureAppender = Log4JLoggerTestUtil.configureLog4JLogger(_JSP_COMPILER_CLASS_NAME,
            Level.DEBUG)) {

        _invokeJSP(_PRECOMPILE_JSP_FILE_NAME, "Precompiled");

        Assert.assertFalse("JSP was compiled at runtime",
                _containsCompilerLog(captureAppender, _PRECOMPILE_JSP_FILE_NAME));
    } finally {
        Files.delete(jspClassPath);
    }
}

---

From source file:com.liferay.portal.upgrade.test.BaseBuildAutoUpgradeTestCase.java

License:Open Source License

protected void addClass(String path, JarOutputStream jarOutputStream, Object[][] tableColumns, String createSQL)
        throws IOException {

    jarOutputStream.putNextEntry(new JarEntry(path));

    ClassLoader classLoader = BaseBuildAutoUpgradeTestCase.class.getClassLoader();

    try (InputStream inputStream = classLoader.getResourceAsStream(ENTITY_PATH)) {

        ClassReader classReader = new ClassReader(inputStream);

        ClassWriter classWriter = new ClassWriter(classReader, ClassWriter.COMPUTE_MAXS);

        ClassVisitor classVisitor = new ClassVisitor(Opcodes.ASM5, classWriter) {

            @Override/* ww  w . jav  a 2s  .  c  o m*/
            public FieldVisitor visitField(int access, String name, String desc, String signature,
                    Object value) {

                if ((createSQL != null) && name.equals("TABLE_SQL_CREATE")) {

                    value = createSQL;
                }

                return super.visitField(access, name, desc, signature, value);
            }

            @Override
            public MethodVisitor visitMethod(int access, String name, String desc, String signature,
                    String[] exceptions) {

                MethodVisitor methodVisitor = super.visitMethod(access, name, desc, signature, exceptions);

                if (name.equals("<clinit>")) {
                    _initTableColumns(methodVisitor, tableColumns);

                    return null;
                }

                return methodVisitor;
            }

        };

        classReader.accept(classVisitor, 0);

        jarOutputStream.write(classWriter.toByteArray());
    }

    jarOutputStream.closeEntry();
}

---

From source file:com.mebigfatguy.baremetal4j.BareMetalClassVisitor.java

License:Apache License

public BareMetalClassVisitor(ClassWriter cw, Options options) {
    super(Opcodes.ASM5, cw);
    this.options = options;
    sourcifier = new Sourcifier();
}

---

From source file:com.mebigfatguy.baremetal4j.BareMetalMethodVisitor.java

License:Apache License

public BareMetalMethodVisitor(MethodVisitor mv, Sourcifier sourcifier) {
    super(Opcodes.ASM5, mv);
    this.sourcifier = sourcifier;
}

---

From source file:com.mebigfatguy.exagent.StackTraceClassVisitor.java

License:Apache License

public StackTraceClassVisitor(ClassWriter cw, int parmSizeLimit) {
    super(Opcodes.ASM5, cw);
    maxParmSize = parmSizeLimit;
}

---

From source file:com.mebigfatguy.exagent.StackTraceMethodVisitor.java

License:Apache License

public StackTraceMethodVisitor(MethodVisitor mv, String cls, String mName, int access, String desc,
        int parmSizeLimit) {
    super(Opcodes.ASM5, mv);
    clsName = cls;// w w w  .ja  v  a  2s . c  o  m
    methodName = mName;
    maxParmSize = parmSizeLimit;

    int nextSlot = ((access & Opcodes.ACC_STATIC) != 0) ? 0 : 1;
    lastParmSlot = nextSlot - 1;
    List<String> sigs = parseSignature(desc);
    for (String sig : sigs) {
        parms.add(new Parm(sig, nextSlot));
        lastParmSlot = nextSlot;
        nextSlot += ("J".equals(sig) || "D".equals(sig)) ? 2 : 1;
    }

    exLocalSlot = nextSlot++;
    depthLocalSlot = nextSlot;
}

---

From source file:com.mebigfatguy.exagent.StackTraceMethodVisitor.java

License:Apache License

@Override
public AnnotationVisitor visitLocalVariableAnnotation(int typeRef, TypePath typePath, Label[] start,
        Label[] end, int[] index, String desc, boolean visible) {
    if (api < Opcodes.ASM5) {
        throw new RuntimeException();
    }/*  w  ww  . ja v a2  s  .c  o  m*/
    int[] modifiedIndices = new int[index.length];
    System.arraycopy(index, 0, modifiedIndices, 0, index.length);
    for (int i = 0; i < modifiedIndices.length; i++) {
        if (index[i] > lastParmSlot) {
            modifiedIndices[i] += 2;
        }
    }
    return super.visitLocalVariableAnnotation(typeRef, typePath, start, end, modifiedIndices, desc, visible);
}

---

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