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159 lines
4.9 KiB
159 lines
4.9 KiB
/*
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* InvokeOperator (c) 1998 Jochen Hoenicke
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*
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* You may distribute under the terms of the GNU General Public License.
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*
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* IN NO EVENT SHALL JOCHEN HOENICKE BE LIABLE TO ANY PARTY FOR DIRECT,
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* INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT OF
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* THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF JOCHEN HOENICKE
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* HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* JOCHEN HOENICKE SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
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* PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS ON AN "AS IS"
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* BASIS, AND JOCHEN HOENICKE HAS NO OBLIGATION TO PROVIDE MAINTENANCE,
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* SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
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*
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* $Id$
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*/
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package jode;
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import gnu.bytecode.CpoolRef;
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public final class InvokeOperator extends Operator {
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CodeAnalyzer codeAnalyzer;
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boolean specialFlag;
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MethodType methodType;
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String methodName;
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Type classType;
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public InvokeOperator(CodeAnalyzer codeAnalyzer,
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boolean specialFlag, Type classType,
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MethodType methodType, String methodName) {
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super(Type.tUnknown, 0);
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this.methodType = methodType;
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this.methodName = methodName;
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this.classType = classType;
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this.type = methodType.getReturnType();
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this.codeAnalyzer = codeAnalyzer;
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this.specialFlag = specialFlag;
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if (methodType.isStatic())
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classType.useType();
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}
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public boolean isStatic() {
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return methodType.isStatic();
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}
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public MethodType getMethodType() {
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return methodType;
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}
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public String getMethodName() {
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return methodName;
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}
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public Type getClassType() {
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return classType;
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}
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public int getPriority() {
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return 950;
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}
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public int getOperandCount() {
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return (methodType.isStatic()?0:1)
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+ methodType.getParameterTypes().length;
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}
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public int getOperandPriority(int i) {
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if (!methodType.isStatic() && i == 0)
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return 950;
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return 0;
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}
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public Type getOperandType(int i) {
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if (!methodType.isStatic()) {
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if (i == 0)
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return getClassType();
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i--;
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}
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return methodType.getParameterTypes()[i];
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}
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public void setOperandType(Type types[]) {
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}
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public boolean isConstructor() {
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return methodName.equals("<init>");
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}
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public boolean isThis() {
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Class clazz = codeAnalyzer.method.classAnalyzer.getClazz();
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return (classType.equals(Type.tType(clazz)));
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}
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public boolean isSuperOrThis() {
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Class clazz = codeAnalyzer.method.classAnalyzer.getClazz();
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while (clazz != null
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&& !classType.equals(Type.tType(clazz))) {
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clazz = clazz.getSuperclass();
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}
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return (clazz != null);
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}
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public String toString(String[] operands) {
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String object = null;
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if (specialFlag) {
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Class clazz = codeAnalyzer.method.classAnalyzer.clazz;
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if (operands[0].equals("this")) {
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object = "";
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while (clazz != null
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&& !classType.equals(Type.tType(clazz))) {
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object = "super";
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clazz = clazz.getSuperclass();
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}
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if (clazz == null)
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object = "NON VIRTUAL this";
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} else if (classType.equals(Type.tType(clazz)))
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object = operands[0];
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else
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object = "NON VIRTUAL "+operands[0];
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}
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object = (object != null) ? object
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: methodType.isStatic()
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? (classType.equals(Type.tType(codeAnalyzer.getClazz()))
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? ""
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: classType.toString())
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: (operands[0].equals("this")
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? (specialFlag &&
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classType.equals(Type.tType(codeAnalyzer.getClazz()
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.getSuperclass()))
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? "super"
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: "")
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: operands[0]);
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int arg = methodType.isStatic() ? 0 : 1;
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String method = isConstructor()
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? (object.length() == 0 ? "this" : object)
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: (object.length() == 0 ? "" : object + ".") + methodName;
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StringBuffer params = new StringBuffer();
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for (int i=0; i < methodType.getParameterTypes().length; i++) {
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if (i>0)
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params.append(", ");
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params.append(operands[arg++]);
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}
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return method+"("+params+")";
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}
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public boolean equals(Object o) {
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return o instanceof InvokeOperator &&
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((InvokeOperator)o).classType.equals(classType) &&
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((InvokeOperator)o).methodName.equals(methodName) &&
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((InvokeOperator)o).methodType.equals(methodType) &&
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((InvokeOperator)o).specialFlag == specialFlag;
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}
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}
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