Source Code Cross Referenced for ProgramMethod.java in  » Testing » KeY » de » uka » ilkd » key » logic » op » 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.logic.op 
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:        /** This file represents a Java method in the logic. It is part of the
012:         * AST of a java program 
013:         */package de.uka.ilkd.key.logic.op;
014:
015:        import java.io.IOException;
016:
017:        import de.uka.ilkd.key.java.*;
018:        import de.uka.ilkd.key.java.abstraction.Constructor;
019:        import de.uka.ilkd.key.java.abstraction.KeYJavaType;
020:        import de.uka.ilkd.key.java.annotation.Annotation;
021:        import de.uka.ilkd.key.java.declaration.*;
022:        import de.uka.ilkd.key.java.reference.MethodReference;
023:        import de.uka.ilkd.key.java.reference.ReferencePrefix;
024:        import de.uka.ilkd.key.java.reference.TypeRef;
025:        import de.uka.ilkd.key.java.reference.TypeReference;
026:        import de.uka.ilkd.key.java.visitor.Visitor;
027:        import de.uka.ilkd.key.logic.ProgramElementName;
028:        import de.uka.ilkd.key.logic.ProgramInLogic;
029:        import de.uka.ilkd.key.logic.Term;
030:        import de.uka.ilkd.key.logic.sort.Sort;
031:        import de.uka.ilkd.key.proof.mgt.Contractable;
032:        import de.uka.ilkd.key.rule.MatchConditions;
033:        import de.uka.ilkd.key.util.Debug;
034:        import de.uka.ilkd.key.util.ExtList;
035:
036:        /**
037:         * The program method represents a concrete method in the logic.
038:         * In case of an instance method the first argument represents the 
039:         * object on which the method is invoked. 
040:         */
041:        public class ProgramMethod extends NonRigidFunction implements 
042:                SourceElement, ProgramElement, MemberDeclaration,
043:                ProgramInLogic, Contractable {
044:
045:            private final MethodDeclaration method;
046:            private final KeYJavaType kjt;
047:            private final KeYJavaType contKJT;
048:            private final PositionInfo pi;
049:
050:            public ProgramMethod(MethodDeclaration method, KeYJavaType contKJT,
051:                    KeYJavaType kjt, PositionInfo pi) {
052:                // for some reasons pm are created for void methods too. It's odd,
053:                // but expand method body relies on a pm....
054:                super (new ProgramElementName(method.getProgramElementName()
055:                        .toString(), contKJT.getSort().toString()),
056:                        kjt == null ? null : kjt.getSort(), getArgumentSorts(
057:                                method, contKJT));
058:
059:                this .method = method;
060:                this .contKJT = contKJT;
061:                this .kjt = kjt;
062:                this .pi = pi;
063:
064:            }
065:
066:            /**
067:             * determines the argument sorts of the symbol to be created 
068:             * @param md the MethodDeclaration whose signature is used as blueprint
069:             * @param container the KeYJavaType of the type where this method is declared
070:             * @return the symbols argument sorts
071:             */
072:            private static Sort[] getArgumentSorts(MethodDeclaration md,
073:                    KeYJavaType container) {
074:                final boolean instanceMethod = !md.isStatic()
075:                        && !(md instanceof  Constructor);
076:
077:                final int arity = instanceMethod ? md
078:                        .getParameterDeclarationCount() + 1 : md
079:                        .getParameterDeclarationCount();
080:
081:                final Sort[] argSorts = new Sort[arity];
082:
083:                final int offset;
084:
085:                if (instanceMethod) {
086:                    argSorts[0] = container.getSort();
087:                    offset = 1;
088:                } else {
089:                    offset = 0;
090:                }
091:
092:                for (int i = offset; i < argSorts.length; i++) {
093:                    argSorts[i] = md.getParameterDeclarationAt(i - offset)
094:                            .getTypeReference().getKeYJavaType().getSort();
095:                }
096:                return argSorts;
097:            }
098:
099:            /**
100:             * BUG: remove this method bit first adopt the jml translation to take about the 
101:             * correct type of parameters and automatic type conversion    
102:             * @return true iff number of subterms of term is equal 
103:             * to its own arity
104:             *    
105:             */
106:            public boolean validTopLevel(Term term) {
107:                return term.arity() == this .arity(); //%%% needs more checking!!!!   
108:            }
109:
110:            // convienience methods to access methods of the corresponding MethodDeclaration
111:            // in a direct way
112:
113:            public MethodDeclaration getMethodDeclaration() {
114:                return method;
115:            }
116:
117:            /**     
118:             * returns the KeYJavaType of the <tt>i</tt>-th paramter declaration. This method 
119:             * does not care about the invoker as argSort does.      
120:             * @param i the int specifying the parameter position
121:             * @return the KeYJavaType of the <tt>i</tt>-th parameter
122:             */
123:            public KeYJavaType getParameterType(int i) {
124:                return method.getParameterDeclarationAt(i).getTypeReference()
125:                        .getKeYJavaType();
126:            }
127:
128:            public StatementBlock getBody() {
129:                return getMethodDeclaration().getBody();
130:            }
131:
132:            /** toString */
133:            public String toString() {
134:                return name().toString();
135:            }
136:
137:            public SourceElement getFirstElement() {
138:                return method.getFirstElement();
139:            }
140:
141:            public SourceElement getLastElement() {
142:                return method.getLastElement();
143:            }
144:
145:            public Comment[] getComments() {
146:                return method.getComments();
147:            }
148:
149:            /**
150:             *@return the annotations.
151:             */
152:            public Annotation[] getAnnotations() {
153:                return new Annotation[0];
154:            }
155:
156:            public int getAnnotationCount() {
157:                return 0;
158:            }
159:
160:            public void prettyPrint(PrettyPrinter w) throws IOException {
161:                method.prettyPrint(w);
162:            }
163:
164:            /** 
165:             * calls the corresponding method of a visitor in order to
166:             * perform some action/transformation on this element
167:             * @param v the Visitor
168:             */
169:            public void visit(Visitor v) {
170:                v.performActionOnProgramMethod(this );
171:            }
172:
173:            /**
174:             *        Returns the start position of the primary token of this element.
175:             *        To get the start position of the syntactical first token,
176:             *        call the corresponding method of <CODE>getFirstElement()</CODE>.
177:             *        @return the start position of the primary token.
178:             */
179:            public Position getStartPosition() {
180:                return pi.getStartPosition();
181:            }
182:
183:            /**
184:             *        Returns the end position of the primary token of this element.
185:             *        To get the end position of the syntactical first token,
186:             *        call the corresponding method of <CODE>getLastElement()</CODE>.
187:             *        @return the end position of the primary token.
188:             */
189:            public Position getEndPosition() {
190:                return pi.getEndPosition();
191:            }
192:
193:            /**
194:             *        Returns the relative position (number of blank heading lines and 
195:             *        columns) of the primary token of this element.
196:             *        To get the relative position of the syntactical first token,
197:             *        call the corresponding method of <CODE>getFirstElement()</CODE>.
198:             *        @return the relative position of the primary token.
199:             */
200:            public Position getRelativePosition() {
201:                return pi.getRelativePosition();
202:            }
203:
204:            public PositionInfo getPositionInfo() {
205:                return pi;
206:            }
207:
208:            /**
209:             * Test whether the declaration is private.
210:             */
211:            public boolean isPrivate() {
212:                return method.isPrivate();
213:            }
214:
215:            /**
216:             * Test whether the declaration is protected.
217:             */
218:            public boolean isProtected() {
219:                return method.isProtected();
220:            }
221:
222:            /**
223:             * Test whether the declaration is public.
224:             */
225:            public boolean isPublic() {
226:                return method.isPublic();
227:            }
228:
229:            /**
230:             * Test whether the declaration is static.
231:             */
232:            public boolean isStatic() {
233:                return method.isStatic();
234:            }
235:
236:            /**
237:             * Test whether the declaration is a constructor.
238:             */
239:            public boolean isConstructor() {
240:                return method instanceof  Constructor;
241:            }
242:
243:            /**
244:             * Test whether the declaration is model.
245:             */
246:            public boolean isModel() {
247:                return method.isModel();
248:            }
249:
250:            /**
251:             * Test whether the declaration is strictfp.
252:             */
253:            public boolean isStrictFp() {
254:                return method.isStrictFp();
255:            }
256:
257:            public ArrayOfModifier getModifiers() {
258:                return method.getModifiers();
259:            }
260:
261:            public int getChildCount() {
262:                return method.getChildCount();
263:            }
264:
265:            public ProgramElement getChildAt(int i) {
266:                return method.getChildAt(i);
267:            }
268:
269:            /** equals modulo renaming is described in class
270:             * SourceElement.
271:             */
272:            public boolean equalsModRenaming(SourceElement se,
273:                    NameAbstractionTable nat) {
274:                if (se == null || !(se instanceof  ProgramMethod)) {
275:                    return false;
276:                }
277:
278:                return method == ((ProgramMethod) se).getMethodDeclaration();
279:            }
280:
281:            public KeYJavaType getKeYJavaType() {
282:                return kjt;
283:            }
284:
285:            public KeYJavaType getContainerType() {
286:                return contKJT;
287:            }
288:
289:            public Expression convertToProgram(Term t, ExtList l) {
290:                ProgramElement called;
291:                if (isStatic()) {
292:                    called = new TypeRef(contKJT);
293:                } else {
294:                    called = (ProgramElement) l.get(0);
295:                    l.remove(0);
296:                }
297:                return new MethodReference(l, getProgramElementName(),
298:                        (ReferencePrefix) called);
299:            }
300:
301:            public ProgramElementName getProgramElementName() {
302:                return getMethodDeclaration().getProgramElementName();
303:            }
304:
305:            public String getFullName() {
306:                return getMethodDeclaration().getFullName();
307:            }
308:
309:            public String getName() {
310:                return getMethodDeclaration().getName();
311:            }
312:
313:            public boolean equalContractable(Contractable c) {
314:                return equals(c)
315:                        && getContainerType().equals(
316:                                ((ProgramMethod) c).getContainerType());
317:            }
318:
319:            public boolean isAbstract() {
320:                return getMethodDeclaration().isAbstract();
321:            }
322:
323:            public boolean isImplicit() {
324:                return getName().startsWith("<");
325:            }
326:
327:            public boolean isNative() {
328:                return getMethodDeclaration().isNative();
329:            }
330:
331:            public boolean isFinal() {
332:                return getMethodDeclaration().isFinal();
333:            }
334:
335:            public boolean isSynchronized() {
336:                return getMethodDeclaration().isSynchronized();
337:            }
338:
339:            public TypeReference getTypeReference() {
340:                return getMethodDeclaration().getTypeReference();
341:            }
342:
343:            public Throws getThrown() {
344:                return getMethodDeclaration().getThrown();
345:            }
346:
347:            public ParameterDeclaration getParameterDeclarationAt(int index) {
348:                return getMethodDeclaration().getParameterDeclarationAt(index);
349:            }
350:
351:            /** returns the variablespecification of the i-th parameterdeclaration */
352:            public VariableSpecification getVariableSpecification(int index) {
353:                return method.getParameterDeclarationAt(index)
354:                        .getVariableSpecification();
355:            }
356:
357:            public int getParameterDeclarationCount() {
358:                return getMethodDeclaration().getParameterDeclarationCount();
359:            }
360:
361:            public ArrayOfParameterDeclaration getParameters() {
362:                return getMethodDeclaration().getParameters();
363:            }
364:
365:            public MatchConditions match(SourceData source,
366:                    MatchConditions matchCond) {
367:                final ProgramElement src = source.getSource();
368:                if (src == this ) {
369:                    source.next();
370:                    return matchCond;
371:                } else {
372:                    Debug.out("Program match failed (pattern, source)", this,
373:                            src);
374:                    return null;
375:                }
376:            }
377:        }
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