Examples with Attribute org.apache.bcel.classfile.Attribute used on opensource projects

Example 1 with Attribute

use of org.apache.bcel.classfile.Attribute in project wcomponents by BorderTech.

the class CheckComponentModelDefinition method visitClassContext.

/**
 * {@inheritDoc}
 */
@Override
public void visitClassContext(final ClassContext classContext) {
    if (!util.isComponentModel(classContext.getJavaClass())) {
        return;
    }
    // TODO: This is nasty, but classContext.getXClass().isStatic() returns FALSE for static inner classes.
    boolean isStatic = false;
    if (classContext.getXClass().getImmediateEnclosingClass() != null) {
        for (Attribute attribute : classContext.getJavaClass().getAttributes()) {
            if (attribute instanceof InnerClasses) {
                InnerClass inner = ((InnerClasses) attribute).getInnerClasses()[0];
                isStatic = (inner.getInnerAccessFlags() & IClassConstants.ACC_STATIC) != 0;
                break;
            }
        }
    }
    if (!classContext.getXClass().isPublic() || classContext.getClassDescriptor().isAnonymousClass()) {
        reportBug(classContext);
    } else if (classContext.getXClass().getImmediateEnclosingClass() != null && !isStatic) {
        reportBug(classContext);
    } else {
        boolean foundPublicNoArgsConstructor = false;
        boolean foundConstructor = false;
        for (XMethod method : classContext.getXClass().getXMethods()) {
            if ("<init>".equals(method.getMethodDescriptor().getName())) {
                foundConstructor = true;
                if (method.isPublic() && method.getNumParams() == 0) {
                    foundPublicNoArgsConstructor = true;
                    break;
                }
            }
        }
        if (foundConstructor && !foundPublicNoArgsConstructor) {
            reportBug(classContext);
        }
    }
}

Example 2 with Attribute

use of org.apache.bcel.classfile.Attribute in project OpenGrok by OpenGrok.

the class JavaClassAnalyzer method getContent.

// TODO this class needs to be thread safe to avoid bug 13364, which was fixed by just updating bcel to 5.2
private void getContent(Writer out, Writer fout, JavaClass c, List<String> defs, List<String> refs, List<String> full) throws IOException {
    String t;
    ConstantPool cp = c.getConstantPool();
    int[] v = new int[cp.getLength() + 1];
    out.write(linkPath(t = c.getSourceFileName()));
    defs.add(t);
    refs.add(t);
    fout.write(t);
    out.write(EOL);
    fout.write(EOL);
    out.write(PACKAGE);
    fout.write(PACKAGE);
    out.write(linkDef(t = c.getPackageName()));
    defs.add(t);
    refs.add(t);
    fout.write(t);
    out.write(EOL);
    fout.write(EOL);
    String aflg;
    out.write(aflg = Utility.accessToString(c.getAccessFlags(), true));
    if (aflg != null) {
        out.write(SPACE);
        fout.write(aflg);
        fout.write(SPACE);
    }
    v[c.getClassNameIndex()] = 1;
    out.write(tagDef(t = c.getClassName()));
    defs.add(t);
    refs.add(t);
    fout.write(t);
    out.write(EXTENDS);
    fout.write(EXTENDS);
    v[c.getSuperclassNameIndex()] = 1;
    out.write(linkDef(t = c.getSuperclassName()));
    refs.add(t);
    fout.write(t);
    for (int i : c.getInterfaceIndices()) {
        v[i] = 1;
    }
    String[] ins = c.getInterfaceNames();
    if (ins != null && ins.length > 0) {
        out.write(IMPLEMENTS);
        fout.write(IMPLEMENTS);
        for (String in : ins) {
            out.write(linkDef(t = in));
            refs.add(t);
            fout.write(t);
            out.write(SPACE);
            fout.write(SPACE);
        }
    }
    out.write(LCBREOL);
    fout.write(LCBREOL);
    for (Attribute a : c.getAttributes()) {
        if (a.getTag() == org.apache.bcel.Const.ATTR_CODE) {
            for (Attribute ca : ((Code) a).getAttributes()) {
                if (ca.getTag() == org.apache.bcel.Const.ATTR_LOCAL_VARIABLE_TABLE) {
                    for (LocalVariable l : ((LocalVariableTable) ca).getLocalVariableTable()) {
                        printLocal(out, fout, l, v, defs, refs);
                    }
                }
            }
        } else if (a.getTag() == org.apache.bcel.Const.ATTR_BOOTSTRAP_METHODS) {
        // TODO fill in bootstrap methods, fix the else if
        } else if (a.getTag() == org.apache.bcel.Const.ATTR_SOURCE_FILE) {
            v[a.getNameIndex()] = 1;
            break;
        }
    }
    String aflgs;
    String fldsig;
    String tdef;
    for (org.apache.bcel.classfile.Field fld : c.getFields()) {
        out.write(TAB);
        fout.write(TAB);
        aflgs = Utility.accessToString(fld.getAccessFlags());
        if (aflgs != null && aflgs.length() > 0) {
            out.write(aflgs);
            fout.write(aflgs);
            fout.write(SPACE);
            out.write(SPACE);
        }
        fldsig = Utility.signatureToString(fld.getSignature());
        out.write(fldsig);
        fout.write(fldsig);
        out.write(SPACE);
        fout.write(SPACE);
        tdef = tagDef(t = fld.getName());
        out.write(tdef);
        fout.write(tdef);
        defs.add(t);
        refs.add(t);
        out.write(EOL);
        fout.write(EOL);
    // TODO show Attributes
    }
    String sig;
    String msig;
    String ltdef;
    for (org.apache.bcel.classfile.Method m : c.getMethods()) {
        out.write(TAB);
        fout.write(TAB);
        aflgs = Utility.accessToString(m.getAccessFlags());
        if (aflgs != null && aflgs.length() > 0) {
            out.write(aflgs);
            fout.write(aflgs);
            out.write(SPACE);
            fout.write(SPACE);
        }
        sig = m.getSignature();
        msig = Utility.methodSignatureReturnType(sig, false);
        out.write(msig);
        fout.write(msig);
        out.write(SPACE);
        fout.write(SPACE);
        ltdef = tagDef(t = m.getName());
        out.write(ltdef);
        fout.write(ltdef);
        defs.add(t);
        refs.add(t);
        out.write(LBRA);
        fout.write(LBRA);
        String[] args = Utility.methodSignatureArgumentTypes(sig, false);
        for (int i = 0; i < args.length; i++) {
            t = args[i];
            out.write(t);
            fout.write(t);
            int spi = t.indexOf(SPACE);
            if (spi > 0) {
                refs.add(t.substring(0, spi));
                defs.add(t.substring(spi + 1));
            }
            if (i < args.length - 1) {
                out.write(COMMA);
                fout.write(COMMA);
            }
        }
        out.write(RBRA);
        fout.write(RBRA);
        ArrayList<LocalVariable[]> locals = new ArrayList<>();
        for (Attribute a : m.getAttributes()) {
            if (a.getTag() == org.apache.bcel.Const.ATTR_EXCEPTIONS) {
                for (int i : ((ExceptionTable) a).getExceptionIndexTable()) {
                    v[i] = 1;
                }
                String[] exs = ((ExceptionTable) a).getExceptionNames();
                if (exs != null && exs.length > 0) {
                    out.write(THROWS);
                    fout.write(THROWS);
                    for (String ex : exs) {
                        out.write(linkDef(ex));
                        fout.write(ex);
                        refs.add(ex);
                        out.write(SPACE);
                        fout.write(SPACE);
                    }
                }
            } else if (a.getTag() == org.apache.bcel.Const.ATTR_CODE) {
                for (Attribute ca : ((Code) a).getAttributes()) {
                    if (ca.getTag() == org.apache.bcel.Const.ATTR_LOCAL_VARIABLE_TABLE) {
                        locals.add(((LocalVariableTable) ca).getLocalVariableTable());
                    }
                }
            }
        }
        out.write(EOL);
        fout.write(EOL);
        if (!locals.isEmpty()) {
            for (LocalVariable[] ls : locals) {
                for (LocalVariable l : ls) {
                    printLocal(out, fout, l, v, defs, refs);
                }
            }
        }
    }
    out.write(RCBREOL);
    fout.write(RCBREOL);
    for (int i = 0; i < v.length - 1; i++) {
        if (v[i] != 1) {
            Constant constant = cp.getConstant(i);
            if (constant != null) {
                full.add(constantToString(constant, cp, v));
            }
        }
    }
}

Example 3 with Attribute

use of org.apache.bcel.classfile.Attribute in project fb-contrib by mebigfatguy.

the class OverlyPermissiveMethod method getBootstrapMethod.

@Nullable
private BootstrapMethod getBootstrapMethod(int bootstrapIndex) {
    for (Attribute a : cls.getAttributes()) {
        if ("BootstrapMethods".equals(a.getName())) {
            if (a instanceof BootstrapMethods) {
                BootstrapMethods bma = (BootstrapMethods) a;
                BootstrapMethod[] methods = bma.getBootstrapMethods();
                if (bootstrapIndex >= methods.length) {
                    return null;
                }
                return methods[bootstrapIndex];
            }
            throw new RuntimeException("Incompatible bcel version, the bcel that is in use, is too old and doesn't have attribute 'BootstrapMethods'");
        }
    }
    return null;
}

Example 4 with Attribute

use of org.apache.bcel.classfile.Attribute in project jop by jop-devel.

the class MemberInfo method getAnnotation.

/**
 * Get the annotation attribute of this member
 * @param visible whether to the the visible or invisible annotation attribute (see {@link AnnotationAttribute#isVisible()}
 * @param create if true, create the attribute if it does not exist
 * @return the annotation attribute or null if it does not exist and {@code create} is false
 */
public AnnotationAttribute getAnnotation(boolean visible, boolean create) {
    for (Attribute a : getAttributes()) {
        if (a instanceof AnnotationAttribute) {
            if (((AnnotationAttribute) a).isVisible() == visible) {
                return (AnnotationAttribute) a;
            }
        }
    }
    if (create) {
        ConstantPoolGen cpg = getClassInfo().getConstantPoolGen();
        String name = visible ? AnnotationReader.VISIBLE_ANNOTATION_NAME : AnnotationReader.INVISIBLE_ANNOTATION_NAME;
        AnnotationAttribute a = new AnnotationAttribute(cpg.addUtf8(name), 0, cpg.getConstantPool(), visible, 0);
        a.updateLength();
        addAttribute(a);
        return a;
    }
    return null;
}

Example 5 with Attribute

use of org.apache.bcel.classfile.Attribute in project OpenGrok by OpenGrok.

the class JavaClassAnalyzer method getContent.

// TODO this class needs to be thread safe to avoid bug 13364, which was fixed by just updating bcel to 5.2
private void getContent(Writer out, Writer fout, JavaClass c, List<String> defs, List<String> refs, List<String> full) throws IOException {
    String t;
    ConstantPool cp = c.getConstantPool();
    int[] v = new int[cp.getLength() + 1];
    out.write(linkPath(t = c.getSourceFileName()));
    defs.add(t);
    refs.add(t);
    fout.write(t);
    out.write(EOL);
    fout.write(EOL);
    out.write(PACKAGE);
    fout.write(PACKAGE);
    out.write(linkDef(t = c.getPackageName()));
    defs.add(t);
    refs.add(t);
    fout.write(t);
    out.write(EOL);
    fout.write(EOL);
    String aflg;
    out.write(aflg = Utility.accessToString(c.getAccessFlags(), true));
    if (aflg != null) {
        out.write(SPACE);
        fout.write(aflg);
        fout.write(SPACE);
    }
    v[c.getClassNameIndex()] = 1;
    out.write(tagDef(t = c.getClassName()));
    defs.add(t);
    refs.add(t);
    fout.write(t);
    out.write(EXTENDS);
    fout.write(EXTENDS);
    v[c.getSuperclassNameIndex()] = 1;
    out.write(linkDef(t = c.getSuperclassName()));
    refs.add(t);
    fout.write(t);
    for (int i : c.getInterfaceIndices()) {
        v[i] = 1;
    }
    String[] ins = c.getInterfaceNames();
    if (ins != null && ins.length > 0) {
        out.write(IMPLEMENTS);
        fout.write(IMPLEMENTS);
        for (String in : ins) {
            out.write(linkDef(t = in));
            refs.add(t);
            fout.write(t);
            out.write(SPACE);
            fout.write(SPACE);
        }
    }
    out.write(LCBREOL);
    fout.write(LCBREOL);
    for (Attribute a : c.getAttributes()) {
        if (a.getTag() == org.apache.bcel.Const.ATTR_CODE) {
            for (Attribute ca : ((Code) a).getAttributes()) {
                if (ca.getTag() == org.apache.bcel.Const.ATTR_LOCAL_VARIABLE_TABLE) {
                    for (LocalVariable l : ((LocalVariableTable) ca).getLocalVariableTable()) {
                        printLocal(out, fout, l, v, defs, refs);
                    }
                }
            }
        } else if (a.getTag() == org.apache.bcel.Const.ATTR_BOOTSTRAP_METHODS) {
        // TODO fill in bootstrap methods, fix the else if
        } else if (a.getTag() == org.apache.bcel.Const.ATTR_SOURCE_FILE) {
            v[a.getNameIndex()] = 1;
            break;
        }
    }
    String aflgs;
    String fldsig;
    String tdef;
    for (org.apache.bcel.classfile.Field fld : c.getFields()) {
        out.write(TAB);
        fout.write(TAB);
        aflgs = Utility.accessToString(fld.getAccessFlags());
        if (aflgs != null && aflgs.length() > 0) {
            out.write(aflgs);
            fout.write(aflgs);
            fout.write(SPACE);
            out.write(SPACE);
        }
        fldsig = Utility.typeSignatureToString(fld.getSignature(), true);
        out.write(fldsig);
        fout.write(fldsig);
        out.write(SPACE);
        fout.write(SPACE);
        tdef = tagDef(t = fld.getName());
        out.write(tdef);
        fout.write(tdef);
        defs.add(t);
        refs.add(t);
        out.write(EOL);
        fout.write(EOL);
    // TODO show Attributes
    }
    String sig;
    String msig;
    String ltdef;
    for (org.apache.bcel.classfile.Method m : c.getMethods()) {
        out.write(TAB);
        fout.write(TAB);
        aflgs = Utility.accessToString(m.getAccessFlags());
        if (aflgs != null && aflgs.length() > 0) {
            out.write(aflgs);
            fout.write(aflgs);
            out.write(SPACE);
            fout.write(SPACE);
        }
        sig = m.getSignature();
        msig = Utility.methodSignatureReturnType(sig, false);
        out.write(msig);
        fout.write(msig);
        out.write(SPACE);
        fout.write(SPACE);
        ltdef = tagDef(t = m.getName());
        out.write(ltdef);
        fout.write(ltdef);
        defs.add(t);
        refs.add(t);
        out.write(LBRA);
        fout.write(LBRA);
        String[] args = Utility.methodSignatureArgumentTypes(sig, false);
        for (int i = 0; i < args.length; i++) {
            t = args[i];
            out.write(t);
            fout.write(t);
            int spi = t.indexOf(SPACE);
            if (spi > 0) {
                refs.add(t.substring(0, spi));
                defs.add(t.substring(spi + 1));
            }
            if (i < args.length - 1) {
                out.write(COMMA);
                fout.write(COMMA);
            }
        }
        out.write(RBRA);
        fout.write(RBRA);
        ArrayList<LocalVariable[]> locals = new ArrayList<>();
        for (Attribute a : m.getAttributes()) {
            if (a.getTag() == org.apache.bcel.Const.ATTR_EXCEPTIONS) {
                for (int i : ((ExceptionTable) a).getExceptionIndexTable()) {
                    v[i] = 1;
                }
                String[] exs = ((ExceptionTable) a).getExceptionNames();
                if (exs != null && exs.length > 0) {
                    out.write(THROWS);
                    fout.write(THROWS);
                    for (String ex : exs) {
                        out.write(linkDef(ex));
                        fout.write(ex);
                        refs.add(ex);
                        out.write(SPACE);
                        fout.write(SPACE);
                    }
                }
            } else if (a.getTag() == org.apache.bcel.Const.ATTR_CODE) {
                for (Attribute ca : ((Code) a).getAttributes()) {
                    if (ca.getTag() == org.apache.bcel.Const.ATTR_LOCAL_VARIABLE_TABLE) {
                        locals.add(((LocalVariableTable) ca).getLocalVariableTable());
                    }
                }
            }
        }
        out.write(EOL);
        fout.write(EOL);
        if (!locals.isEmpty()) {
            for (LocalVariable[] ls : locals) {
                for (LocalVariable l : ls) {
                    printLocal(out, fout, l, v, defs, refs);
                }
            }
        }
    }
    out.write(RCBREOL);
    fout.write(RCBREOL);
    for (int i = 0; i < v.length - 1; i++) {
        if (v[i] != 1) {
            Constant constant = cp.getConstant(i);
            if (constant != null) {
                full.add(constantToString(constant, cp, v));
            }
        }
    }
}