Source Code Cross Referenced for ProgramTerm.java in  » Testing » KeY » de » uka » ilkd » key » logic » 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 
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.logic;
012:
013:        import de.uka.ilkd.key.logic.op.ArrayOfQuantifiableVariable;
014:        import de.uka.ilkd.key.logic.op.Op;
015:        import de.uka.ilkd.key.logic.op.Operator;
016:
017:        /*
018:         * A ProgramTerm represents a term with a modality operator like
019:         * the diamond or box operator together with a JavaBlock. Instances
020:         * should never be accessed via this interface, use the interface of
021:         * the superclass Term and construct instances only via a TermFactory
022:         * instead. 
023:         */
024:
025:        class ProgramTerm extends Term {
026:            /** the program
027:             * @link aggregation
028:             * @supplierCardinality 0..1
029:             */
030:            private final JavaBlock javaBlock;
031:
032:            /**  sub term */
033:            private final ArrayOfTerm subTerm;
034:
035:            /** caches depth */
036:            private int depth = -1;
037:
038:            /** 
039:             * creates a diamond term, so there is an additional
040:             * parameter javaBlock 
041:             */
042:            ProgramTerm(Operator modality, JavaBlock javaBlock, Term subTerm) {
043:                this (modality, javaBlock, new Term[] { subTerm });
044:            }
045:
046:            ProgramTerm(Operator op, JavaBlock javaBlock, Term[] subTerm) {
047:                super (op, op.sort(subTerm));
048:                this .subTerm = new ArrayOfTerm(subTerm);
049:                this .javaBlock = javaBlock;
050:                fillCaches();
051:            }
052:
053:            /** @return n-th subterm (always the only one)*/
054:            public Term sub(int n) {
055:                return subTerm.getTerm(n);
056:            }
057:
058:            /** @return arity of the quantifier term 1 as int */
059:            public int arity() {
060:                return subTerm.size();
061:            }
062:
063:            /**@return depth of the term */
064:            public int depth() {
065:                if (this .depth == -1) {
066:                    int localdepth = 0;
067:                    for (int i = 0; i < subTerm.size(); i++) {
068:                        if (subTerm.getTerm(i).depth() > localdepth)
069:                            localdepth = subTerm.getTerm(i).depth();
070:                    }
071:                    this .depth = localdepth + 1;
072:                }
073:                return this .depth;
074:            }
075:
076:            /** @return JavaBlock if term has diamond */
077:            public JavaBlock javaBlock() {
078:                return javaBlock;
079:            }
080:
081:            /** @return an empty variable list */
082:            public ArrayOfQuantifiableVariable varsBoundHere(int n) {
083:                return EMPTY_VAR_LIST;
084:            }
085:
086:            public String toString() {
087:                StringBuffer sb = new StringBuffer();
088:                if (op() == Op.DIA) {
089:                    sb.append("\\<").append(javaBlock).append("\\> ");
090:                } else if (op() == Op.BOX) {
091:                    sb.append("\\[").append(javaBlock).append("\\] ");
092:                } else if (op() == Op.TOUT) {
093:                    sb.append("\\[[").append(javaBlock).append("\\]] ");
094:                } else {
095:                    //	    sb.append("???Some Strange Modality???").append(javaBlock);
096:                    sb.append("\\modality{" + op().name()).append("}").append(
097:                            javaBlock).append("\\endmodality ");
098:                }
099:                for (int i = 0; i < subTerm.size(); i++)
100:                    sb.append("(").append(subTerm.getTerm(i)).append(")");
101:
102:                return sb.toString();
103:            }
104:
105:        }
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