more bugs 2
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@@ -153,9 +153,8 @@ public abstract class AbstractCallGraphEngine implements CallGraphEngine {
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}
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if ("this".equals(arg) || arg.startsWith("this.")) {
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arg = arg.replaceFirst("^this", actualReceiver);
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} else if ("super".equals(arg) || arg.startsWith("super.")) {
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arg = arg.replaceFirst("^super", actualReceiver);
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}
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// Intentionally not replacing 'super' because super should remain statically bound to the superclass of where the code is defined.
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}
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String[] extractedArg = extractMethodSuffix(arg, methodSuffix);
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arg = extractedArg[0];
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@@ -728,8 +727,18 @@ public abstract class AbstractCallGraphEngine implements CallGraphEngine {
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exprParser.setSource(resolvedValue.toCharArray());
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ASTNode exprNode = exprParser.createAST(null);
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if (exprNode instanceof MethodInvocation mi) {
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if (exprNode instanceof SuperMethodInvocation smi) {
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String getterName = smi.getName().getIdentifier();
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int lastDot = entryMethod.lastIndexOf('.');
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String className = lastDot > 0 ? entryMethod.substring(0, lastDot) : entryMethod;
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TypeDeclaration currentTd = context.getTypeDeclaration(className);
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if (currentTd != null) {
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String receiverType = context.getSuperclassFqn(currentTd);
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return constantExtractor.resolveMethodReturnConstant(receiverType, getterName, 0, new HashSet<>(), null);
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}
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} else if (exprNode instanceof MethodInvocation mi) {
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String getterName = mi.getName().getIdentifier();
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String propName = methodSuffix.startsWith(".get") ? methodSuffix.substring(4) : methodSuffix.substring(1);
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Expression receiver = mi.getExpression();
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String receiverName = null;
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String receiverType = null;
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@@ -738,7 +747,6 @@ public abstract class AbstractCallGraphEngine implements CallGraphEngine {
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receiverName = sn.getIdentifier();
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receiverType = variableTracer.getVariableDeclaredType(entryMethod, receiverName);
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} else if (receiver instanceof MethodInvocation receiverMi) {
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String propName = getterName.startsWith("get") ? getterName.substring(3) : getterName;
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Expression currentMi = receiverMi;
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while (currentMi instanceof MethodInvocation chainMi) {
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String mName = chainMi.getName().getIdentifier();
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@@ -754,6 +762,13 @@ public abstract class AbstractCallGraphEngine implements CallGraphEngine {
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}
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currentMi = chainMi.getExpression();
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}
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} else if (receiver instanceof SuperMethodInvocation) {
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int lastDot = entryMethod.lastIndexOf('.');
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String className = lastDot > 0 ? entryMethod.substring(0, lastDot) : entryMethod;
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TypeDeclaration currentTd = context.getTypeDeclaration(className);
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if (currentTd != null) {
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receiverType = context.getSuperclassFqn(currentTd);
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}
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}
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if (receiverType == null && path.size() > 1) {
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@@ -126,12 +126,12 @@ public class HeuristicCallGraphEngine extends AbstractCallGraphEngine {
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protected String postProcessResolvedArgument(org.eclipse.jdt.core.dom.Expression originalExpr, String resolvedValue) {
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// Preserve getter calls on 'this' or 'super' for later resolution in trigger parameter tracing
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// where we can substitute the actual receiver from the call edge
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boolean isThisOrSuperGetter = originalExpr instanceof org.eclipse.jdt.core.dom.MethodInvocation mi
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boolean isThisOrSuperGetter = (originalExpr instanceof org.eclipse.jdt.core.dom.MethodInvocation mi
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&& (mi.getExpression() instanceof org.eclipse.jdt.core.dom.ThisExpression || mi.getExpression() instanceof org.eclipse.jdt.core.dom.SuperMethodInvocation)
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&& mi.arguments().isEmpty();
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&& mi.arguments().isEmpty()) || (originalExpr instanceof org.eclipse.jdt.core.dom.SuperMethodInvocation smi && smi.arguments().isEmpty());
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if (isThisOrSuperGetter) {
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return originalExpr.toString(); // Preserve "this.getTransitionType()" for later substitution
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return originalExpr.toString(); // Preserve "this.getTransitionType()" or "super.getEvent()" for later substitution
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}
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// Narrow resolution for "localVar.getX()" patterns where localVar is initialized
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@@ -0,0 +1,75 @@
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package click.kamil.springstatemachineexporter.analysis.service;
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import click.kamil.springstatemachineexporter.analysis.model.CallChain;
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import click.kamil.springstatemachineexporter.analysis.model.EntryPoint;
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import click.kamil.springstatemachineexporter.analysis.model.TriggerPoint;
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import click.kamil.springstatemachineexporter.ast.common.CodebaseContext;
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import org.junit.jupiter.api.Test;
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import java.io.IOException;
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import java.nio.file.Files;
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import java.nio.file.Path;
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import java.util.List;
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import static org.assertj.core.api.Assertions.assertThat;
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public class SuperMethodBugTest {
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@Test
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void shouldResolveSuperMethodCorrectly() throws IOException {
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String source = """
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package com.example;
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public class ChildController extends ParentController {
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private StateMachine machine;
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@Override
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public TransitionEnum getEvent() {
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return TransitionEnum.STATE_X; // Child returns X
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}
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public void process() {
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// Calls super.getEvent() which returns Y, NOT X!
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machine.fire(super.getEvent());
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}
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}
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class ParentController {
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public TransitionEnum getEvent() {
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return TransitionEnum.STATE_Y; // Parent returns Y
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}
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}
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class StateMachine {
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public void fire(TransitionEnum event) {}
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}
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enum TransitionEnum { STATE_X, STATE_Y }
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""";
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Path tempDir = Files.createTempDirectory("callgraph_test_super");
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Files.writeString(tempDir.resolve("Config.java"), source);
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CodebaseContext context = new CodebaseContext();
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context.scan(tempDir);
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HeuristicCallGraphEngine engine = new HeuristicCallGraphEngine(context);
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EntryPoint entryPoint = EntryPoint.builder()
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.className("com.example.ChildController")
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.methodName("process")
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.build();
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TriggerPoint trigger = TriggerPoint.builder()
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.className("com.example.StateMachine")
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.methodName("fire")
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.event("event")
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.build();
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List<CallChain> chains = engine.findChains(List.of(entryPoint), List.of(trigger));
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assertThat(chains).hasSize(1);
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System.out.println("Poly events from super: " + chains.get(0).getTriggerPoint().getPolymorphicEvents());
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// It SHOULD resolve to STATE_Y because we called super.getEvent()
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assertThat(chains.get(0).getTriggerPoint().getPolymorphicEvents()).containsExactly("TransitionEnum.STATE_Y");
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}
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}
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