Source Code Cross Referenced for ClassDeclaration.java in  » Testing » KeY » de » uka » ilkd » key » java » declaration » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Testing » KeY » de.uka.ilkd.key.java.declaration 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        // This file is part of KeY - Integrated Deductive Software Design
002:        // Copyright (C) 2001-2007 Universitaet Karlsruhe, Germany
003:        //                         Universitaet Koblenz-Landau, Germany
004:        //                         Chalmers University of Technology, Sweden
005:        //
006:        // The KeY system is protected by the GNU General Public License. 
007:        // See LICENSE.TXT for details.
008:        //
009:        //
010:
011:        package de.uka.ilkd.key.java.declaration;
012:
013:        import java.util.LinkedList;
014:
015:        import de.uka.ilkd.key.java.Comment;
016:        import de.uka.ilkd.key.java.PrettyPrinter;
017:        import de.uka.ilkd.key.java.ProgramElement;
018:        import de.uka.ilkd.key.java.Statement;
019:        import de.uka.ilkd.key.java.abstraction.ListOfKeYJavaType;
020:        import de.uka.ilkd.key.java.abstraction.SLListOfKeYJavaType;
021:        import de.uka.ilkd.key.java.visitor.Visitor;
022:        import de.uka.ilkd.key.jml.UsefulTools;
023:        import de.uka.ilkd.key.logic.ProgramElementName;
024:        import de.uka.ilkd.key.util.ExtList;
025:
026:        /**
027:         *  There are several types of class declarations:
028:         *  <ul>
029:         *  <li>package-less outer classes
030:         *  <ul>
031:         *  <li>getClassContainer() == null
032:         *  <li>getStatementContainer() == null
033:         *  <li>getName() != null
034:         *  </ul>
035:         *  <li>ordinary outer classes
036:         *  <ul>
037:         *  <li>getClassContainer() instanceof Package
038:         *  <li>getStatementContainer() == null
039:         *  <li>getName() != null
040:         *  </ul>
041:         *  <li>member classes
042:         *  <ul>
043:         *  <li>getClassContainer() instanceof ClassDeclaration
044:         *  <li>getStatementContainer() == null
045:         *  <li>getName() != null
046:         *  </ul>
047:         *  <li>local class
048:         *  <ul>
049:         *  <li>getClassContainer() == null
050:         *  <li>getStatementContainer() != null
051:         *  <li>getName() != null
052:         *  </ul>
053:         *  <li>local anonymous class
054:         *  <ul>
055:         *  <li>getClassContainer() == null
056:         *  <li>getStatementContainer() instanceof expression.New
057:         *  <li>getName() == null
058:         *  </ul>
059:         *  </ul>
060:         *  Anonymous local classes have exactly one supertype and no
061:         *  subtypes.
062:         *  <BR>
063:         *  Binary classes may have only binary members.
064:         * taken from COMPOST and changed to achieve an immutable structure
065:         */
066:
067:        public class ClassDeclaration extends TypeDeclaration implements 
068:                Statement {
069:
070:            /**
071:             *      Extending.
072:             */
073:
074:            protected final Extends extending;
075:
076:            /**
077:             *      Implementing.
078:             */
079:            protected final Implements implementing;
080:
081:            /**
082:             *      Class declaration.     
083:             *      @param mods a modifier array.
084:             *      @param name Identifier of the class
085:             *      @param members an array containing the memberdeclarations of
086:             * this type
087:             *      @param implemented of type Implement containing the
088:             * interfaces implemented by this class
089:             *      @param extended Extend containing the class extended by
090:             * the class of this classdeclaration
091:             *      @param parentIsInterfaceDeclaration boolean true iff
092:             * parent is an InterfaceDeclaration 
093:             */
094:            public ClassDeclaration(Modifier[] mods, ProgramElementName name,
095:                    Extends extended, ProgramElementName fullName,
096:                    Implements implemented, MemberDeclaration[] members,
097:                    boolean parentIsInterfaceDeclaration, boolean isLibrary) {
098:                super (mods, name, fullName, members,
099:                        parentIsInterfaceDeclaration, isLibrary);
100:                this .extending = extended;
101:                this .implementing = implemented;
102:            }
103:
104:            /**
105:             * uses children list to create non-anonymous class 
106:             * @param children the ExtList with all children building up this
107:             *  class declaration
108:             * May contain: a Extends (as pointer to a
109:             * class), a Implements (as pointer to an interface)
110:             * ProgramElementName (as name), several MemberDeclaration (as members of
111:             * the type), a parentIsInterfaceDeclaration (indicating if parent is
112:             * interface), several Modifier (as modifiers of the type decl), a Comment
113:             * @param fullName the fully qualified ProgramElementName of this class
114:             * @param isLibrary a boolean flag indicating if this class represents a 
115:             * library class (such classes have usually no method implementations but 
116:             * specifications)      
117:             */
118:            public ClassDeclaration(ExtList children,
119:                    ProgramElementName fullName, boolean isLibrary) {
120:                super (children, fullName, isLibrary);
121:                extending = (Extends) children.get(Extends.class);
122:                implementing = (Implements) children.get(Implements.class);
123:            }
124:
125:            public ClassDeclaration(ProgramElementName name,
126:                    ProgramElementName fullName) {
127:                this (
128:                        new de.uka.ilkd.key.java.declaration.Modifier[] {},
129:                        name,
130:                        null,
131:                        fullName,
132:                        null,
133:                        new de.uka.ilkd.key.java.declaration.MemberDeclaration[] {},
134:                        false, false);
135:            }
136:
137:            /**
138:             *      Returns the number of children of this node.
139:             *      @return an int giving the number of children of this node
140:             */
141:
142:            public int getChildCount() {
143:                int result = 0;
144:                if (modArray != null)
145:                    result += modArray.size();
146:                if (name != null)
147:                    result++;
148:                if (extending != null)
149:                    result++;
150:                if (implementing != null)
151:                    result++;
152:                if (members != null)
153:                    result += members.size();
154:                return result;
155:            }
156:
157:            /**
158:             *      Returns the child at the specified index in this node's "virtual"
159:             *      child array
160:             *      @param index an index into this node's "virtual" child array
161:             *      @return the program element at the given position
162:             *      @exception ArrayIndexOutOfBoundsException if <tt>index</tt> is out
163:             *                 of bounds
164:             */
165:
166:            public ProgramElement getChildAt(int index) {
167:                int len;
168:                if (modArray != null) {
169:                    len = modArray.size();
170:                    if (len > index) {
171:                        return modArray.getModifier(index);
172:                    }
173:                    index -= len;
174:                }
175:                if (name != null) {
176:                    if (index == 0)
177:                        return name;
178:                    index--;
179:                }
180:                if (extending != null) {
181:                    if (index == 0)
182:                        return extending;
183:                    index--;
184:                }
185:                if (implementing != null) {
186:                    if (index == 0)
187:                        return implementing;
188:                    index--;
189:                }
190:                if (members != null) {
191:                    return members.getMemberDeclaration(index);
192:                }
193:                throw new ArrayIndexOutOfBoundsException();
194:            }
195:
196:            /**
197:             *  Get extended types.
198:             *  @return the extends.
199:             */
200:
201:            public Extends getExtendedTypes() {
202:                return extending;
203:            }
204:
205:            /**
206:             *  Get implemented types.
207:             *  @return the implements.
208:             */
209:
210:            public Implements getImplementedTypes() {
211:                return implementing;
212:            }
213:
214:            /**
215:             * Classes are never strictfp.
216:             */
217:
218:            public boolean isStrictFp() {
219:                return false;
220:            }
221:
222:            /**
223:             * Classes are never transient.
224:             */
225:
226:            public boolean isTransient() {
227:                return false;
228:            }
229:
230:            /**
231:             * Classes are never volatile.
232:             */
233:
234:            public boolean isVolatile() {
235:                return false;
236:            }
237:
238:            public boolean isInterface() {
239:                return false;
240:            }
241:
242:            /** 
243:             * returns the local declared supertypes
244:             */
245:            public ListOfKeYJavaType getSupertypes() {
246:                ListOfKeYJavaType types = SLListOfKeYJavaType.EMPTY_LIST;
247:                if (implementing != null) {
248:                    for (int i = implementing.getTypeReferenceCount() - 1; i >= 0; i--) {
249:                        types = types.prepend(implementing
250:                                .getTypeReferenceAt(i).getKeYJavaType());
251:                    }
252:                }
253:                if (extending != null) {
254:                    types = types.prepend(extending.getTypeReferenceAt(0)
255:                            .getKeYJavaType());
256:                }
257:                return types;
258:            }
259:
260:            /**
261:             * returns the comments belonging to this ClassDeclaration + Comments 
262:             * declared in the body of the class that contain jml invariant or 
263:             * constraint statements.  
264:             * @return the comments.
265:             */
266:            public Comment[] getComments() {
267:
268:                final Comment[] c1 = super .getComments();
269:                assert c1 != null;
270:
271:                LinkedList jmlComments = new LinkedList();
272:                //HACK: RECODER interprets comments, that are intended to be refering
273:                // to the class, as comments belonging to fields or methods. 
274:                for (int i = 0, cc = getChildCount(); i < cc; i++) {
275:                    ProgramElement p = getChildAt(i);
276:                    Comment[] c2 = p.getComments();
277:                    if (c2 != null) {
278:                        for (int j = 0; j < c2.length; j++) {
279:                            if (UsefulTools.isClassSpec(c2[j])
280:                                    || (p instanceof  Modifier)) {
281:                                jmlComments.add(c2[j]);
282:                            }
283:                        }
284:                    }
285:                }
286:                final Comment[] c2 = new Comment[c1.length + jmlComments.size()];
287:                System.arraycopy(c1, 0, c2, 0, c1.length);
288:
289:                for (int i = c1.length; i < c2.length; i++) {
290:                    c2[i] = (Comment) jmlComments.removeFirst();
291:                }
292:                return c2;
293:            }
294:
295:            /** calls the corresponding method of a visitor in order to
296:             * perform some action/transformation on this element
297:             * @param v the Visitor
298:             */
299:            public void visit(Visitor v) {
300:                v.performActionOnClassDeclaration(this );
301:            }
302:
303:            public void prettyPrint(PrettyPrinter p) throws java.io.IOException {
304:                p.printClassDeclaration(this);
305:            }
306:
307:        }
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