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GROOVY-11823: try super.propertyMissing(name) before outer class #2360

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eric-milles wants to merge 1 commit into from
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GROOVY-11823: try super.propertyMissing(name) before outer class #2360

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39 changes: 36 additions & 3 deletions src/main/java/org/codehaus/groovy/classgen/InnerClassCompletionVisitor.java
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Original file line number Diff line number Diff line change
Expand Up @@ -27,11 +27,13 @@
import org.codehaus.groovy.ast.InnerClassNode;
import org.codehaus.groovy.ast.MethodNode;
import org.codehaus.groovy.ast.Parameter;
import org.codehaus.groovy.ast.expr.ConstantExpression;
import org.codehaus.groovy.ast.expr.ConstructorCallExpression;
import org.codehaus.groovy.ast.expr.Expression;
import org.codehaus.groovy.ast.expr.TupleExpression;
import org.codehaus.groovy.ast.expr.VariableExpression;
import org.codehaus.groovy.ast.stmt.BlockStatement;
import org.codehaus.groovy.ast.stmt.Statement;
import org.codehaus.groovy.ast.stmt.TryCatchStatement;
import org.codehaus.groovy.classgen.asm.BytecodeHelper;
import org.codehaus.groovy.control.CompilationUnit;
Expand All @@ -54,17 +56,22 @@
import static org.codehaus.groovy.ast.ClassHelper.VOID_TYPE;
import static org.codehaus.groovy.ast.tools.GeneralUtils.args;
import static org.codehaus.groovy.ast.tools.GeneralUtils.block;
import static org.codehaus.groovy.ast.tools.GeneralUtils.callSuperX;
import static org.codehaus.groovy.ast.tools.GeneralUtils.callX;
import static org.codehaus.groovy.ast.tools.GeneralUtils.castX;
import static org.codehaus.groovy.ast.tools.GeneralUtils.catchS;
import static org.codehaus.groovy.ast.tools.GeneralUtils.classX;
import static org.codehaus.groovy.ast.tools.GeneralUtils.constX;
import static org.codehaus.groovy.ast.tools.GeneralUtils.ctorSuperX;
import static org.codehaus.groovy.ast.tools.GeneralUtils.ctorThisX;
import static org.codehaus.groovy.ast.tools.GeneralUtils.ctorX;
import static org.codehaus.groovy.ast.tools.GeneralUtils.ifS;
import static org.codehaus.groovy.ast.tools.GeneralUtils.notX;
import static org.codehaus.groovy.ast.tools.GeneralUtils.nullX;
import static org.codehaus.groovy.ast.tools.GeneralUtils.param;
import static org.codehaus.groovy.ast.tools.GeneralUtils.params;
import static org.codehaus.groovy.ast.tools.GeneralUtils.propX;
import static org.codehaus.groovy.ast.tools.GeneralUtils.returnS;
import static org.codehaus.groovy.ast.tools.GeneralUtils.stmt;
import static org.codehaus.groovy.ast.tools.GeneralUtils.throwS;
import static org.codehaus.groovy.ast.tools.GeneralUtils.tryCatchS;
Expand Down Expand Up @@ -341,6 +348,9 @@ public void visit(final MethodVisitor mv) {
final ClassNode returnType, final Parameter[] parameters, final BiConsumer<BlockStatement, Parameter[]> consumer) {
MethodNode method = innerClass.getDeclaredMethod(methodName, parameters);
if (method == null) {
ClassNode mme = ClassHelper.make(groovy.lang.MissingMethodException.class);
ClassNode mpe = ClassHelper.make(groovy.lang.MissingPropertyException.class);

// try {
// <consumer dispatch>
// } catch (MissingMethodException notFound) {
Expand All @@ -352,10 +362,10 @@ public void visit(final MethodVisitor mv) {
Expression selfType = varX("this");
if ((modifiers & ACC_STATIC) == 0) selfType = callX(selfType, "getClass");
if (methodName.endsWith("methodMissing")) {
exceptionT = ClassHelper.make(groovy.lang.MissingMethodException.class);
exceptionT = mme;
newException = ctorX(exceptionT, args(propX(varX(catchParam),"method"), selfType, propX(varX(catchParam),"arguments")));
} else {
exceptionT = ClassHelper.make(groovy.lang.MissingPropertyException.class);
exceptionT = mpe;
newException = ctorX(exceptionT, args(propX(varX(catchParam), "property"), selfType, propX(varX(catchParam), "cause")));
}
catchParam.setType(exceptionT);
Expand All @@ -365,7 +375,30 @@ public void visit(final MethodVisitor mv) {
TryCatchStatement tryCatch = tryCatchS(handleMissing);
tryCatch.addCatch(catchS(catchParam, throwS(newException)));

innerClass.addSyntheticMethod(methodName, modifiers, returnType, parameters, ClassNode.EMPTY_ARRAY, tryCatch);
Statement methodBody = tryCatch;
if ((modifiers & ACC_STATIC) == 0) { // GROOVY-11823
// if (!"methodMissing".equals(name))
Expression noRecursion = notX(callX(constX(methodName), "equals", varX(parameters[0])));
// try {
// return super.methodMissing(name,args)
// } catch (MissingMethodException ignore) {
// } catch (MissingPropertyException ignore) {
// }
BlockStatement trySuperClass = block();
if (!ClassHelper.isPrimitiveVoid(returnType)) {
trySuperClass.addStatement(returnS(callSuperX(methodName, args(parameters))));
} else {
trySuperClass.addStatement(stmt(callSuperX(methodName, args(parameters))));
trySuperClass.addStatement(returnS(ConstantExpression.EMPTY_EXPRESSION));
}
tryCatch = tryCatchS(trySuperClass);
tryCatch.addCatch(catchS(param(mme, "ignore"), block()));
if (methodName.equals("propertyMissing"))
tryCatch.addCatch(catchS(param(mpe, "ignore"), block()));

methodBody = block(ifS(noRecursion, tryCatch), methodBody);
}
innerClass.addSyntheticMethod(methodName, modifiers, returnType, parameters, ClassNode.EMPTY_ARRAY, methodBody);

// if there is a user-defined method, add compiler error and continue
} else if (isStatic(innerClass) && (method.getModifiers() & ACC_SYNTHETIC) == 0) {
Expand Down
20 changes: 20 additions & 0 deletions src/test/groovy/gls/innerClass/InnerClassTest.groovy
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Original file line number Diff line number Diff line change
Expand Up @@ -2242,6 +2242,7 @@ final class InnerClassTest {
def err = shouldFail """
class Upper {
$returnType propertyMissing(String name, Object value) {
throw new MissingPropertyException(name, getClass())
}
}
class Outer {
Expand All @@ -2253,6 +2254,25 @@ final class InnerClassTest {
assert err =~ /No such property: missing for class: Outer.Inner/
}

// GROOVY-11823
@Test
void testNestedPropertyHandling5() {
assertScript '''
class Upper {
Object propertyMissing(String name) {
if (name == 'fizz') return 'buzz'
throw new MissingPropertyException(name, getClass())
}
}
class Outer {
static class Inner extends Upper {
}
}
def inner = new Outer.Inner()
assert inner.fizz == 'buzz'
'''
}

// GROOVY-7312
@Test
void testInnerClassOfInterfaceIsStatic() {
Expand Down
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