List of usage examples for org.objectweb.asm.util TraceSignatureVisitor getDeclaration
public String getDeclaration()
From source file:com.gargoylesoftware.js.nashorn.internal.ir.debug.NashornTextifier.java
License:Open Source License
@Override public void visit(final int version, final int access, final String name, final String signature, final String superName, final String[] interfaces) { final int major = version & 0xFFFF; final int minor = version >>> 16; currentClassName = name;//from w ww . j ava 2 s . co m final StringBuilder sb = new StringBuilder(); sb.append("// class version ").append(major).append('.').append(minor).append(" (").append(version) .append(")\n"); if ((access & Opcodes.ACC_DEPRECATED) != 0) { sb.append("// DEPRECATED\n"); } sb.append("// access flags 0x"). //TODO TRANSLATE TO WHAT THEY MEAN append(Integer.toHexString(access).toUpperCase()).append('\n'); appendDescriptor(sb, CLASS_SIGNATURE, signature); if (signature != null) { final TraceSignatureVisitor sv = new TraceSignatureVisitor(access); final SignatureReader r = new SignatureReader(signature); r.accept(sv); sb.append("// declaration: ").append(name).append(sv.getDeclaration()).append('\n'); } appendAccess(sb, access & ~Opcodes.ACC_SUPER); if ((access & Opcodes.ACC_ANNOTATION) != 0) { sb.append("@interface "); } else if ((access & Opcodes.ACC_INTERFACE) != 0) { sb.append("interface "); } else if ((access & Opcodes.ACC_ENUM) == 0) { sb.append("class "); } appendDescriptor(sb, INTERNAL_NAME, name); if (superName != null && !"java/lang/Object".equals(superName)) { sb.append(" extends "); appendDescriptor(sb, INTERNAL_NAME, superName); sb.append(' '); } if (interfaces != null && interfaces.length > 0) { sb.append(" implements "); for (final String interface1 : interfaces) { appendDescriptor(sb, INTERNAL_NAME, interface1); sb.append(' '); } } sb.append(" {\n"); addText(sb); }
From source file:com.gargoylesoftware.js.nashorn.internal.ir.debug.NashornTextifier.java
License:Open Source License
@Override public NashornTextifier visitField(final int access, final String name, final String desc, final String signature, final Object value) { final StringBuilder sb = new StringBuilder(); // sb.append('\n'); if ((access & Opcodes.ACC_DEPRECATED) != 0) { sb.append(tab).append("// DEPRECATED\n"); }/*from ww w . j a v a 2s .c o m*/ /* sb.append(tab). append("// access flags 0x"). append(Integer.toHexString(access).toUpperCase()). append('\n'); */ if (signature != null) { sb.append(tab); appendDescriptor(sb, FIELD_SIGNATURE, signature); final TraceSignatureVisitor sv = new TraceSignatureVisitor(0); final SignatureReader r = new SignatureReader(signature); r.acceptType(sv); sb.append(tab).append("// declaration: ").append(sv.getDeclaration()).append('\n'); } sb.append(tab); appendAccess(sb, access); final String prunedDesc = desc.endsWith(";") ? desc.substring(0, desc.length() - 1) : desc; appendDescriptor(sb, FIELD_DESCRIPTOR, prunedDesc); sb.append(' ').append(name); if (value != null) { sb.append(" = "); if (value instanceof String) { sb.append('\"').append(value).append('\"'); } else { sb.append(value); } } sb.append(";\n"); addText(sb); final NashornTextifier t = createNashornTextifier(); addText(t.getText()); return t; }
From source file:com.gargoylesoftware.js.nashorn.internal.ir.debug.NashornTextifier.java
License:Open Source License
@Override public NashornTextifier visitMethod(final int access, final String name, final String desc, final String signature, final String[] exceptions) { graph = new Graph(name); final List<Label> extraLabels = cr.getExtraLabels(currentClassName, name, desc); this.labelIter = extraLabels == null ? null : extraLabels.iterator(); final StringBuilder sb = new StringBuilder(); sb.append('\n'); if ((access & Opcodes.ACC_DEPRECATED) != 0) { sb.append(tab).append("// DEPRECATED\n"); }/* w ww. ja v a 2s . c om*/ sb.append(tab).append("// access flags 0x").append(Integer.toHexString(access).toUpperCase()).append('\n'); if (signature != null) { sb.append(tab); appendDescriptor(sb, METHOD_SIGNATURE, signature); final TraceSignatureVisitor v = new TraceSignatureVisitor(0); final SignatureReader r = new SignatureReader(signature); r.accept(v); final String genericDecl = v.getDeclaration(); final String genericReturn = v.getReturnType(); final String genericExceptions = v.getExceptions(); sb.append(tab).append("// declaration: ").append(genericReturn).append(' ').append(name) .append(genericDecl); if (genericExceptions != null) { sb.append(" throws ").append(genericExceptions); } sb.append('\n'); } sb.append(tab); appendAccess(sb, access); if ((access & Opcodes.ACC_NATIVE) != 0) { sb.append("native "); } if ((access & Opcodes.ACC_VARARGS) != 0) { sb.append("varargs "); } if ((access & Opcodes.ACC_BRIDGE) != 0) { sb.append("bridge "); } sb.append(name); appendDescriptor(sb, METHOD_DESCRIPTOR, desc); if (exceptions != null && exceptions.length > 0) { sb.append(" throws "); for (final String exception : exceptions) { appendDescriptor(sb, INTERNAL_NAME, exception); sb.append(' '); } } sb.append('\n'); addText(sb); final NashornTextifier t = createNashornTextifier(); addText(t.getText()); return t; }
From source file:com.gargoylesoftware.js.nashorn.internal.ir.debug.NashornTextifier.java
License:Open Source License
@Override public void visitLocalVariable(final String name, final String desc, final String signature, final Label start, final Label end, final int index) { final StringBuilder sb = new StringBuilder(); if (!localVarsStarted) { text.add("\n"); localVarsStarted = true;// www . jav a 2 s . com graph.addNode("vars"); currentBlock = "vars"; } sb.append(tab2).append("local ").append(name).append(' '); final int len = sb.length(); for (int i = 0; i < 25 - len; i++) { sb.append(' '); } String label; label = appendLabel(sb, start); for (int i = 0; i < 5 - label.length(); i++) { sb.append(' '); } label = appendLabel(sb, end); for (int i = 0; i < 5 - label.length(); i++) { sb.append(' '); } sb.append(index).append(tab2); appendDescriptor(sb, FIELD_DESCRIPTOR, desc); sb.append('\n'); if (signature != null) { sb.append(tab2); appendDescriptor(sb, FIELD_SIGNATURE, signature); final TraceSignatureVisitor sv = new TraceSignatureVisitor(0); final SignatureReader r = new SignatureReader(signature); r.acceptType(sv); sb.append(tab2).append("// declaration: ").append(sv.getDeclaration()).append('\n'); } addText(sb.toString()); }
From source file:com.sebastian_daschner.jaxrs_analyzer.model.JavaUtils.java
License:Apache License
/** * Converts the given type signature to a human readable type string. * <p>//from w w w . j a va2s . c o m * Example: {@code Ljava/util/Map<Ljava/lang/String;Ljava/lang/String;>; -> java.util.Map<java.lang.String, java.lang.String>} */ public static String toReadableType(final String type) { final SignatureReader reader = new SignatureReader(type); final TraceSignatureVisitor visitor = new TraceSignatureVisitor(0); reader.acceptType(visitor); return visitor.getDeclaration(); }
From source file:net.sourceforge.cobertura.reporting.ComplexityCalculator.java
License:Open Source License
/** * Computes CCN for a method./*from www . j a v a 2s.c o m*/ * * @param classData class data for the class which contains the method to compute CCN for * @param methodName the name of the method to compute CCN for * @param methodDescriptor the descriptor of the method to compute CCN for * @return CCN for the method * @throws NullPointerException if <code>classData</code> is <code>null</code> */ public int getCCNForMethod(ClassData classData, String methodName, String methodDescriptor) { if (!calculateMethodComplexity) { return 0; } Validate.notNull(classData, "classData must not be null"); Validate.notNull(methodName, "methodName must not be null"); Validate.notNull(methodDescriptor, "methodDescriptor must not be null"); int complexity = 0; List<FunctionMetric> methodMetrics = getFunctionMetricsForSingleFile(classData.getSourceFileName()); // golden method = method for which we need ccn String goldenMethodName = methodName; boolean isConstructor = false; if (goldenMethodName.equals("<init>")) { isConstructor = true; goldenMethodName = classData.getBaseName(); } // fully-qualify the method goldenMethodName = classData.getName() + "." + goldenMethodName; // replace nested class separator $ by . goldenMethodName = goldenMethodName.replaceAll(Pattern.quote("$"), "."); TraceSignatureVisitor v = new TraceSignatureVisitor(Opcodes.ACC_PUBLIC); SignatureReader r = new SignatureReader(methodDescriptor); r.accept(v); // for the scope of this method, signature = signature of the method excluding the method name String goldenSignature = v.getDeclaration(); // get parameter type list string which is enclosed by round brackets () goldenSignature = goldenSignature.substring(1, goldenSignature.length() - 1); // collect all the signatures with the same method name as golden method Map<String, Integer> candidateSignatureToCcn = new HashMap<String, Integer>(); for (FunctionMetric singleMethodMetrics : methodMetrics) { String candidateMethodName = singleMethodMetrics.name.substring(0, singleMethodMetrics.name.indexOf('(')); String candidateSignature = stripTypeParameters(singleMethodMetrics.name .substring(singleMethodMetrics.name.indexOf('(') + 1, singleMethodMetrics.name.length() - 1)); if (goldenMethodName.equals(candidateMethodName)) { candidateSignatureToCcn.put(candidateSignature, singleMethodMetrics.ccn); } } // if only one signature, no signature matching needed if (candidateSignatureToCcn.size() == 1) { return candidateSignatureToCcn.values().iterator().next(); } // else, do signature matching and find the best match // update golden signature using reflection if (!goldenSignature.isEmpty()) { try { String[] goldenParameterTypeStrings = goldenSignature.split(","); Class<?>[] goldenParameterTypes = new Class[goldenParameterTypeStrings.length]; for (int i = 0; i < goldenParameterTypeStrings.length; i++) { goldenParameterTypes[i] = ClassUtils.getClass(goldenParameterTypeStrings[i].trim(), false); } Class<?> klass = ClassUtils.getClass(classData.getName(), false); if (isConstructor) { Constructor<?> realMethod = klass.getDeclaredConstructor(goldenParameterTypes); goldenSignature = realMethod.toGenericString(); } else { Method realMethod = klass.getDeclaredMethod(methodName, goldenParameterTypes); goldenSignature = realMethod.toGenericString(); } // replace varargs ellipsis with array notation goldenSignature = goldenSignature.replaceAll("\\.\\.\\.", "[]"); // extract the parameter type list string goldenSignature = goldenSignature.substring(goldenSignature.indexOf("(") + 1, goldenSignature.length() - 1); // strip the type parameters to get raw types goldenSignature = stripTypeParameters(goldenSignature); } catch (Exception e) { logger.error("Error while getting method CC for " + goldenMethodName, e); return 0; } } // replace nested class separator $ by . goldenSignature = goldenSignature.replaceAll(Pattern.quote("$"), "."); // signature matching - due to loss of fully qualified parameter types from JavaCC, get ccn for the closest match double signatureMatchPercentTillNow = 0; for (Entry<String, Integer> candidateSignatureToCcnEntry : candidateSignatureToCcn.entrySet()) { String candidateSignature = candidateSignatureToCcnEntry.getKey(); double currentMatchPercent = matchSignatures(candidateSignature, goldenSignature); if (currentMatchPercent == 1) { return candidateSignatureToCcnEntry.getValue(); } if (currentMatchPercent > signatureMatchPercentTillNow) { complexity = candidateSignatureToCcnEntry.getValue(); signatureMatchPercentTillNow = currentMatchPercent; } } return complexity; }