Source Code Cross Referenced for ParameterDeclaration.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 de.uka.ilkd.key.java.ProgramElement;
014:        import de.uka.ilkd.key.java.reference.TypeReference;
015:        import de.uka.ilkd.key.java.visitor.Visitor;
016:        import de.uka.ilkd.key.util.ExtList;
017:
018:        /**
019:         *  Formal parameters require a VariableSpecificationList of size() <= 1
020:         *  (size() == 0 for abstract methods) without initializer (for Java).
021:         */
022:        public class ParameterDeclaration extends VariableDeclaration {
023:
024:            /**
025:             *   Var spec.
026:             */
027:            protected final ArrayOfVariableSpecification varSpec;
028:
029:            /**
030:             *      Parameter declaration.
031:             */
032:
033:            public ParameterDeclaration() {
034:                this .varSpec = null;
035:            }
036:
037:            /**
038:             * Parameter declaration.
039:             * @param mods a modifier array.
040:             * @param typeRef a type reference.
041:             * @param var the VariableSpecification belonging to this parameter declaration.
042:             * @param parentIsInterfaceDeclaration a boolean set true iff
043:             * the parent is an InterfaceDeclaration 
044:             */
045:
046:            public ParameterDeclaration(Modifier[] mods, TypeReference typeRef,
047:                    VariableSpecification var,
048:                    boolean parentIsInterfaceDeclaration) {
049:                super (mods, typeRef, parentIsInterfaceDeclaration);
050:                this .varSpec = new ArrayOfVariableSpecification(var);
051:            }
052:
053:            /**
054:             * Parameter declaration.
055:             * @param children an ExtList of children. May contain:	
056:             *  a VariableSpecification (specifying the parameter)
057:             *  a TypeReference (as reference to the type of the declared variable)
058:             * 	several Modifier (taken as modifiers of the declaration), 
059:             * 	a Comment
060:             * @param parentIsInterfaceDeclaration a boolean set true iff
061:             * the parent is an InterfaceDeclaration 
062:             */
063:
064:            public ParameterDeclaration(ExtList children,
065:                    boolean parentIsInterfaceDeclaration) {
066:                super (children, parentIsInterfaceDeclaration);
067:                this .varSpec = new ArrayOfVariableSpecification(
068:                        new VariableSpecification[] { (VariableSpecification) children
069:                                .get(VariableSpecification.class) });
070:            }
071:
072:            public VariableSpecification getVariableSpecification() {
073:                return varSpec.getVariableSpecification(0);
074:            }
075:
076:            public ArrayOfVariableSpecification getVariables() {
077:                return varSpec;
078:            }
079:
080:            /**
081:             *      Returns the number of children of this node.
082:             *      @return an int giving the number of children of this node
083:             */
084:
085:            public int getChildCount() {
086:                int result = 0;
087:                if (modArray != null)
088:                    result += modArray.size();
089:                if (typeReference != null)
090:                    result++;
091:                if (varSpec != null)
092:                    result++;
093:                return result;
094:            }
095:
096:            /**
097:             *      Returns the child at the specified index in this node's "virtual"
098:             *      child array
099:             *      @param index an index into this node's "virtual" child array
100:             *      @return the program element at the given position
101:             *      @exception ArrayIndexOutOfBoundsException if <tt>index</tt> is out
102:             *                 of bounds
103:             */
104:
105:            public ProgramElement getChildAt(int index) {
106:                int len;
107:                if (modArray != null) {
108:                    len = modArray.size();
109:                    if (len > index) {
110:                        return modArray.getModifier(index);
111:                    }
112:                    index -= len;
113:                }
114:                if (typeReference != null) {
115:                    if (index == 0)
116:                        return typeReference;
117:                    index--;
118:                }
119:                if (varSpec != null) {
120:                    if (index == 0)
121:                        return varSpec.getVariableSpecification(0);
122:                }
123:                throw new ArrayIndexOutOfBoundsException();
124:            }
125:
126:            /**
127:             * Parameters are never private.
128:             */
129:
130:            public boolean isPrivate() {
131:                return false;
132:            }
133:
134:            /**
135:             * Parameters are never protected..
136:             */
137:
138:            public boolean isProtected() {
139:                return false;
140:            }
141:
142:            /**
143:             * Parameters are never "public".
144:             */
145:
146:            public boolean isPublic() {
147:                return false;
148:            }
149:
150:            /**
151:             * Parameters are never static.
152:             */
153:
154:            public boolean isStatic() {
155:                return false;
156:            }
157:
158:            /**
159:             * Parameters are never transient.
160:             */
161:
162:            public boolean isTransient() {
163:                return false;
164:            }
165:
166:            /** calls the corresponding method of a visitor in order to
167:             * perform some action/transformation on this element
168:             * @param v the Visitor
169:             */
170:            public void visit(Visitor v) {
171:                v.performActionOnParameterDeclaration(this);
172:            }
173:
174:        }
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