org.extendj.ast.Attributes Maven / Gradle / Ivy
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package org.extendj.ast;
import java.util.ArrayList;
import java.io.ByteArrayOutputStream;
import java.io.PrintStream;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.util.Collection;
import java.util.Collections;
import java.util.HashSet;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.InputStream;
import java.io.IOException;
import java.util.Set;
import beaver.*;
import java.util.concurrent.atomic.AtomicBoolean;
import java.util.concurrent.ConcurrentMap;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.ConcurrentSkipListMap;
import java.util.LinkedHashSet;
import java.util.*;
import org.jastadd.util.PrettyPrintable;
import org.jastadd.util.PrettyPrinter;
import java.util.zip.*;
import java.io.*;
import org.jastadd.util.*;
import java.io.BufferedInputStream;
import java.io.DataInputStream;
/**
* @ast class
* @aspect BytecodeAttributes
* @declaredat /home/jesper/git/extendj/java5/frontend/BytecodeAttributes.jrag:35
*/
class Attributes extends java.lang.Object {
protected AbstractClassfileParser p;
protected boolean isSynthetic;
protected Attributes(AbstractClassfileParser parser) {
p = parser;
isSynthetic = false;
}
protected void processAttribute(String attribute_name, int attribute_length)
throws IOException {
if (attribute_name.equals("Synthetic")) {
isSynthetic = true;
} else {
p.skip(attribute_length);
}
}
protected void attributes() throws IOException {
int attributes_count = p.u2();
if (AbstractClassfileParser.VERBOSE) {
p.println(" " + attributes_count + " attributes:");
}
for (int j = 0; j < attributes_count; j++) {
int attribute_name_index = p.u2();
int attribute_length = p.u4();
String attribute_name = p.getCONSTANT_Utf8_Info(attribute_name_index).string();
if (AbstractClassfileParser.VERBOSE) {
p.println(" Attribute: " + attribute_name + ", length: " + attribute_length);
}
processAttribute(attribute_name, attribute_length);
}
}
public boolean isSynthetic() {
return isSynthetic;
}
// 4.8.15.1
protected ElementValue readElementValue() throws IOException {
char c = (char) p.u1();
switch (c) {
case 'e':
int type_name_index = p.u2();
String type_name = p.getCONSTANT_Utf8_Info(type_name_index).string();
// Remove inital L and trailing semicolon.
Access typeAccess = BytecodeParser.fromClassName(
type_name.substring(1, type_name.length() - 1));
int const_name_index = p.u2();
String const_name = p.getCONSTANT_Utf8_Info(const_name_index).string();
return new ElementConstantValue(typeAccess.qualifiesAccess(new VarAccess(const_name)));
case 'B':
case 'C':
case 'D':
case 'F':
case 'I':
case 'J':
case 'S':
case 'Z':
case 's':
int const_value_index = p.u2();
Expr e = p.getCONSTANT_Info(const_value_index).expr();
return new ElementConstantValue(e);
case 'c':
int class_info_index = p.u2();
String descriptor = p.getCONSTANT_Utf8_Info(class_info_index).string();
e = new TypeDescriptor(p, descriptor).type();
return new ElementConstantValue(e);
case '@':
return new ElementAnnotationValue(readAnnotation());
case '[':
int index = p.u2();
List list = new List();
for (int i = 0; i < index; i++) {
list.add(readElementValue());
}
return new ElementArrayValue(list);
default:
throw new Error("AnnotationDefault tag " + c + " not supported");
}
}
// 4.8.15
protected Annotation readAnnotation() throws IOException {
Access typeAccess = new FieldDescriptor(p, "").type();
int num_element_value_pairs = p.u2();
List list = new List();
for (int i = 0; i < num_element_value_pairs; i++) {
int element_name_index = p.u2();
String element_name = p.getCONSTANT_Utf8_Info(element_name_index).string();
ElementValue element_value = readElementValue();
list.add(new ElementValuePair(element_name, element_value));
}
return new Annotation("Annotation", typeAccess, list);
}
public static class FieldAttributes extends Attributes {
protected CONSTANT_Info constantValue;
public ArrayList annotations;
public Signatures.FieldSignature fieldSignature;
public FieldAttributes(AbstractClassfileParser p) throws IOException {
super(p);
attributes();
}
protected void processAttribute(String attribute_name, int attribute_length)
throws IOException {
if (attribute_name.equals("ConstantValue") && attribute_length == 2) {
int constantvalue_index = p.u2();
constantValue = p.getCONSTANT_Info(constantvalue_index);
} else if (attribute_name.equals("RuntimeVisibleAnnotations")) {
int num_annotations = p.u2();
if (annotations == null) {
annotations = new ArrayList();
}
for (int j = 0; j < num_annotations; j++) {
annotations.add(readAnnotation());
}
} else if (attribute_name.equals("RuntimeInvisibleAnnotations")) {
int num_annotations = p.u2();
if (annotations == null) {
annotations = new ArrayList();
}
for (int j = 0; j < num_annotations; j++) {
annotations.add(readAnnotation());
}
} else if (attribute_name.equals("Signature")) {
int signature_index = p.u2();
String s = p.getCONSTANT_Utf8_Info(signature_index).string();
fieldSignature = new Signatures.FieldSignature(s);
} else {
super.processAttribute(attribute_name, attribute_length);
}
}
public CONSTANT_Info constantValue() {
return constantValue;
}
}
public static class MethodAttributes extends Attributes {
protected List exceptionList;
protected ElementValue elementValue;
public Signatures.MethodSignature methodSignature;
public ArrayList annotations;
public ArrayList[] parameterAnnotations;
public MethodAttributes(AbstractClassfileParser p) throws IOException {
super(p);
attributes();
}
protected void processAttribute(String attribute_name, int attribute_length)
throws IOException {
if (attribute_name.equals("Exceptions")) {
parseExceptions();
} else if (attribute_name.equals("AnnotationDefault")) {
annotationDefault();
} else if (attribute_name.equals("Signature")) {
int signature_index = p.u2();
String s = p.getCONSTANT_Utf8_Info(signature_index).string();
methodSignature = new Signatures.MethodSignature(s);
} else if (attribute_name.equals("RuntimeVisibleAnnotations")) {
int num_annotations = p.u2();
if (annotations == null) {
annotations = new ArrayList();
}
for (int j = 0; j < num_annotations; j++) {
annotations.add(readAnnotation());
}
} else if (attribute_name.equals("RuntimeInvisibleAnnotations")) {
int num_annotations = p.u2();
if (annotations == null) {
annotations = new ArrayList();
}
for (int j = 0; j < num_annotations; j++) {
annotations.add(readAnnotation());
}
} else if (attribute_name.equals("RuntimeVisibleParameterAnnotations")) {
int num_parameters = p.u1();
if (parameterAnnotations == null) {
parameterAnnotations = new ArrayList[num_parameters];
}
for (int i = 0; i < num_parameters; i++) {
if (parameterAnnotations[i] == null) {
parameterAnnotations[i] = new ArrayList();
}
int num_annotations = p.u2();
for (int j = 0; j < num_annotations; j++) {
parameterAnnotations[i].add(readAnnotation());
}
}
} else if (attribute_name.equals("RuntimeInvisibleParameterAnnotations")) {
int num_parameters = p.u1();
if (parameterAnnotations == null) {
parameterAnnotations = new ArrayList[num_parameters];
}
for (int i = 0; i < num_parameters; i++) {
if (parameterAnnotations[i] == null) {
parameterAnnotations[i] = new ArrayList();
}
int num_annotations = p.u2();
for (int j = 0; j < num_annotations; j++) {
parameterAnnotations[i].add(readAnnotation());
}
}
} else {
super.processAttribute(attribute_name, attribute_length);
}
}
private void parseExceptions() throws IOException {
int number_of_exceptions = p.u2();
exceptionList = new List();
if (AbstractClassfileParser.VERBOSE) {
p.println(" " + number_of_exceptions + " exceptions:");
}
for (int i = 0; i < number_of_exceptions; i++) {
CONSTANT_Class_Info exception = p.getCONSTANT_Class_Info(p.u2());
if (AbstractClassfileParser.VERBOSE) {
p.println(" exception " + exception.name());
}
exceptionList.add(exception.access());
}
}
public List exceptionList() {
return exceptionList != null ? exceptionList : new List();
}
public ElementValue elementValue() {
return elementValue;
}
// 4.8.19
private void annotationDefault() throws IOException {
elementValue = readElementValue();
}
}
public static class TypeAttributes extends Attributes {
TypeDecl typeDecl;
TypeDecl outerTypeDecl;
Program classPath;
private boolean isInnerClass;
public TypeAttributes(AbstractClassfileParser p, TypeDecl typeDecl, TypeDecl outerTypeDecl,
Program classPath) throws IOException {
super(p);
this.typeDecl = typeDecl;
this.outerTypeDecl = outerTypeDecl;
this.classPath = classPath;
attributes();
}
public boolean isInnerClass() {
return isInnerClass;
}
protected void processAttribute(String attribute_name, int attribute_length)
throws IOException {
if (attribute_name.equals("InnerClasses")) {
innerClasses();
} else if (attribute_name.equals("Signature")) {
int signature_index = p.u2();
String s = p.getCONSTANT_Utf8_Info(signature_index).string();
Signatures.ClassSignature classSignature = new Signatures.ClassSignature(s);
typeDecl = typeDecl.makeGeneric(classSignature);
} else if (attribute_name.equals("RuntimeVisibleAnnotations")) {
int num_annotations = p.u2();
for (int j = 0; j < num_annotations; j++) {
Annotation a = readAnnotation();
typeDecl.getModifiers().addModifier(a);
}
} else if (attribute_name.equals("RuntimeInvisibleAnnotations")) {
int num_annotations = p.u2();
for (int j = 0; j < num_annotations; j++) {
Annotation a = readAnnotation();
typeDecl.getModifiers().addModifier(a);
}
} else {
super.processAttribute(attribute_name, attribute_length);
}
}
protected void innerClasses() throws IOException {
int number_of_classes = p.u2();
if (AbstractClassfileParser.VERBOSE) {
p.println(" Number of classes: " + number_of_classes);
}
for (int i = 0; i < number_of_classes; i++) {
if (AbstractClassfileParser.VERBOSE) {
p.print(" " + i + "(" + number_of_classes + ")" + ":");
}
int inner_class_info_index = p.u2();
int outer_class_info_index = p.u2();
int inner_name_index = p.u2();
int inner_class_access_flags = p.u2();
if (inner_class_info_index > 0) {
CONSTANT_Class_Info inner_class_info = p.getCONSTANT_Class_Info(
inner_class_info_index);
String inner_class_name = inner_class_info.name();
String inner_name = inner_class_name.substring(inner_class_name.lastIndexOf("$") + 1);
String outer_class_name;
if (outer_class_info_index > 0) {
CONSTANT_Class_Info outer_class_info = p.getCONSTANT_Class_Info(
outer_class_info_index);
if (inner_class_info == null || outer_class_info == null) {
System.out.println("Null");
}
outer_class_name = outer_class_info.name();
if (AbstractClassfileParser.VERBOSE) {
p.println(" inner: " + inner_class_name + ", outer: " + outer_class_name);
}
} else {
// Anonymous inner class; need to infer outer_class_name from inner_class_name.
outer_class_name = inner_class_name.substring(0, inner_class_name.lastIndexOf("$"));
}
if (inner_class_info.name().equals(p.classInfo.name())) {
if (AbstractClassfileParser.VERBOSE) {
p.println(" Class " + inner_class_name + " is inner (" + inner_name + ")");
}
typeDecl.setID(inner_name);
// Replace non-annotation modifiers:
List prevModifiers = typeDecl.getModifiers().getModifierList();
typeDecl.setModifiers(
AbstractClassfileParser.modifiers(inner_class_access_flags & 0x041f));
for (Modifier mod : prevModifiers) {
if (mod instanceof Annotation) {
typeDecl.getModifiers().addModifier(mod);
}
}
if (p.outerClassNameEquals(outer_class_name)) {
MemberTypeDecl m = null;
if (typeDecl instanceof ClassDecl) {
m = new MemberClassDecl((ClassDecl) typeDecl);
outerTypeDecl.addBodyDecl(m);
} else if (typeDecl instanceof InterfaceDecl) {
m = new MemberInterfaceDecl((InterfaceDecl) typeDecl);
outerTypeDecl.addBodyDecl(m);
}
} else {
isInnerClass = true;
}
}
if (outer_class_name.equals(p.classInfo.name())) {
if (AbstractClassfileParser.VERBOSE) {
p.println(" Class " + p.classInfo.name()
+ " has inner class: " + inner_class_name);
}
if (AbstractClassfileParser.VERBOSE) {
p.println("Begin processing: " + inner_class_name);
}
try {
InputStream is = null;
try {
is = classPath.getInputStream(inner_class_name);
} catch(Error e) {
if (e.getMessage().startsWith("Could not find nested type")) {
// Ignore.
} else {
throw e;
}
}
if (is != null) {
BytecodeParser p2 = new BytecodeParser(is, p.name);
p2.parse(typeDecl, outer_class_name, classPath,
(inner_class_access_flags & Flags.ACC_STATIC) == 0);
is.close();
} else {
p.println("Error: ClassFile " + inner_class_name
+ " not found");
}
} catch (FileNotFoundException e) {
System.out.println("Error: " + inner_class_name
+ " not found");
} catch (Exception e) {
e.printStackTrace();
System.exit(1);
}
if (AbstractClassfileParser.VERBOSE) {
p.println("End processing: " + inner_class_name);
}
}
}
}
if (AbstractClassfileParser.VERBOSE) {
p.println(" end");
}
}
}
}