diff options
Diffstat (limited to 'src/org/jetbrains/java/decompiler/struct/attr/StructAnnotationAttribute.java')
| -rw-r--r-- | src/org/jetbrains/java/decompiler/struct/attr/StructAnnotationAttribute.java | 187 |
1 files changed, 187 insertions, 0 deletions
diff --git a/src/org/jetbrains/java/decompiler/struct/attr/StructAnnotationAttribute.java b/src/org/jetbrains/java/decompiler/struct/attr/StructAnnotationAttribute.java new file mode 100644 index 0000000..8958299 --- /dev/null +++ b/src/org/jetbrains/java/decompiler/struct/attr/StructAnnotationAttribute.java @@ -0,0 +1,187 @@ +/* + * Fernflower - The Analytical Java Decompiler + * http://www.reversed-java.com + * + * (C) 2008 - 2010, Stiver + * + * This software is NEITHER public domain NOR free software + * as per GNU License. See license.txt for more details. + * + * This software is distributed WITHOUT ANY WARRANTY; without + * even the implied warranty of MERCHANTABILITY or FITNESS FOR + * A PARTICULAR PURPOSE. + */ + +package org.jetbrains.java.decompiler.struct.attr; + +import java.io.ByteArrayInputStream; +import java.io.DataInputStream; +import java.io.IOException; +import java.util.ArrayList; +import java.util.List; + +import org.jetbrains.java.decompiler.code.CodeConstants; +import org.jetbrains.java.decompiler.modules.decompiler.exps.AnnotationExprent; +import org.jetbrains.java.decompiler.modules.decompiler.exps.ConstExprent; +import org.jetbrains.java.decompiler.modules.decompiler.exps.Exprent; +import org.jetbrains.java.decompiler.modules.decompiler.exps.FieldExprent; +import org.jetbrains.java.decompiler.modules.decompiler.exps.NewExprent; +import org.jetbrains.java.decompiler.struct.consts.ConstantPool; +import org.jetbrains.java.decompiler.struct.consts.PrimitiveConstant; +import org.jetbrains.java.decompiler.struct.gen.FieldDescriptor; +import org.jetbrains.java.decompiler.struct.gen.VarType; + +public class StructAnnotationAttribute extends StructGeneralAttribute { + + private List<AnnotationExprent> annotations; + + public void initContent(ConstantPool pool) { + + super.initContent(pool); + + annotations = new ArrayList<AnnotationExprent>(); + DataInputStream data = new DataInputStream(new ByteArrayInputStream(info, 2, info.length)); + + int len = (((info[0] & 0xFF)<<8) | (info[1] & 0xFF)); + for(int i=0;i<len;i++) { + annotations.add(parseAnnotation(data, pool)); + } + + } + + public static AnnotationExprent parseAnnotation(DataInputStream data, ConstantPool pool) { + + try { + + String classname = pool.getPrimitiveConstant(data.readUnsignedShort()).getString(); + VarType cltype = new VarType(classname); + + int len = data.readUnsignedShort(); + + List<String> parnames = new ArrayList<String>(); + List<Exprent> parvalues = new ArrayList<Exprent>(); + + for(int i=0;i<len;i++) { + parnames.add(pool.getPrimitiveConstant(data.readUnsignedShort()).getString()); + parvalues.add(parseAnnotationElement(data, pool)); + } + + return new AnnotationExprent(cltype.value, parnames, parvalues); + + } catch(IOException ex) { + throw new RuntimeException(ex); + } + + } + + public static Exprent parseAnnotationElement(DataInputStream data, ConstantPool pool) { + + try { + int tag = data.readUnsignedByte(); + + switch(tag) { + case 'e': // enum constant + String classname = pool.getPrimitiveConstant(data.readUnsignedShort()).getString(); + String constname = pool.getPrimitiveConstant(data.readUnsignedShort()).getString(); + + FieldDescriptor descr = FieldDescriptor.parseDescriptor(classname); + return new FieldExprent(constname, descr.type.value, true, null, descr); + case 'c': // class + String descriptor = pool.getPrimitiveConstant(data.readUnsignedShort()).getString(); + VarType type = FieldDescriptor.parseDescriptor(descriptor).type; + + String value; + switch(type.type) { + case CodeConstants.TYPE_OBJECT: + value = type.value; + break; + case CodeConstants.TYPE_BYTE: + value = byte.class.getName(); + break; + case CodeConstants.TYPE_CHAR: + value = char.class.getName(); + break; + case CodeConstants.TYPE_DOUBLE: + value = double.class.getName(); + break; + case CodeConstants.TYPE_FLOAT: + value = float.class.getName(); + break; + case CodeConstants.TYPE_INT: + value = int.class.getName(); + break; + case CodeConstants.TYPE_LONG: + value = long.class.getName(); + break; + case CodeConstants.TYPE_SHORT: + value = short.class.getName(); + break; + case CodeConstants.TYPE_BOOLEAN: + value = boolean.class.getName(); + break; + case CodeConstants.TYPE_VOID: + value = void.class.getName(); + break; + default: + throw new RuntimeException("invalid class type: " + type.type); + } + return new ConstExprent(VarType.VARTYPE_CLASS, value); + case '[': // array + int len = data.readUnsignedShort(); + List<Exprent> lst = new ArrayList<Exprent>(); + + for(int i=0;i<len;i++) { + lst.add(parseAnnotationElement(data, pool)); + } + + VarType newtype; + if(lst.isEmpty()) { + newtype = new VarType(CodeConstants.TYPE_OBJECT, 1, "java/lang/Object"); + } else { + VarType eltype = lst.get(0).getExprType(); + newtype = new VarType(eltype.type, 1, eltype.value); + } + + NewExprent newexpr = new NewExprent(newtype, new ArrayList<Exprent>()); + newexpr.setDirectArrayInit(true); + newexpr.setLstArrayElements(lst); + return newexpr; + case '@': // annotation + return parseAnnotation(data, pool); + default: + PrimitiveConstant cn = pool.getPrimitiveConstant(data.readUnsignedShort()); + switch(tag) { + case 'B': + return new ConstExprent(VarType.VARTYPE_BYTE, cn.value); + case 'C': + return new ConstExprent(VarType.VARTYPE_CHAR, cn.value); + case 'D': + return new ConstExprent(VarType.VARTYPE_DOUBLE, cn.value); + case 'F': + return new ConstExprent(VarType.VARTYPE_FLOAT, cn.value); + case 'I': + return new ConstExprent(VarType.VARTYPE_INT, cn.value); + case 'J': + return new ConstExprent(VarType.VARTYPE_LONG, cn.value); + case 'S': + return new ConstExprent(VarType.VARTYPE_SHORT, cn.value); + case 'Z': + return new ConstExprent(VarType.VARTYPE_BOOLEAN, cn.value); + case 's': + return new ConstExprent(VarType.VARTYPE_STRING, cn.value); + default: + throw new RuntimeException("invalid element type!"); + } + } + } catch(IOException ex) { + throw new RuntimeException(ex); + } + + } + + + public List<AnnotationExprent> getAnnotations() { + return annotations; + } + +} |