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KotlinCompiler -stubs option

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* do not fail on errors
* do not analyze function bodies
* generate "throw new RuntimeException()" in bytecode
This commit is contained in:
Stepan Koltsov
2012-02-28 15:52:59 +04:00
parent 64dc73fef2
commit 4ea99fc6ca
25 changed files with 293 additions and 143 deletions
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compiler/backend/src/org/jetbrains/jet/codegen/ClassBodyCodegen.java
+1 -1
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@@ -136,7 +136,7 @@ public abstract class ClassBodyCodegen {
private void generateStaticInitializer() {
if (staticInitializerChunks.size() > 0) {
final MethodVisitor mv = v.newMethod(null, Opcodes.ACC_PUBLIC | Opcodes.ACC_STATIC,"<clinit>", "()V", null, null);
if (v.generateCode()) {
if (v.generateCode() == ClassBuilder.Mode.FULL) {
mv.visitCode();
InstructionAdapter v = new InstructionAdapter(mv);
compiler/backend/src/org/jetbrains/jet/codegen/ClassBuilder.java
+17 -3
View File
@@ -29,15 +29,22 @@ import org.objectweb.asm.MethodVisitor;
public abstract class ClassBuilder {
public static class Concrete extends ClassBuilder {
private final ClassVisitor v;
private final boolean stubs;
public Concrete(ClassVisitor v) {
public Concrete(ClassVisitor v, boolean stubs) {
this.v = v;
this.stubs = stubs;
}
@Override
public ClassVisitor getVisitor() {
return v;
}
@Override
public Mode generateCode() {
return stubs ? Mode.STUBS : Mode.FULL;
}
}
public FieldVisitor newField(@Nullable PsiElement origin,
int access,
@@ -85,7 +92,14 @@ public abstract class ClassBuilder {
getVisitor().visitInnerClass(name, outerName, innerName, access);
}
public boolean generateCode() {
return true;
public enum Mode {
/** Full function bodies */
FULL,
/** Only function signatures */
SIGNATURES,
/** Function with stub bodies: just throw exception */
STUBS,
}
public abstract Mode generateCode();
}
compiler/backend/src/org/jetbrains/jet/codegen/ClassBuilderFactories.java
+82
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@@ -0,0 +1,82 @@
/*
* Copyright 2000-2012 JetBrains s.r.o.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.jetbrains.jet.codegen;
import org.objectweb.asm.ClassWriter;
import org.objectweb.asm.util.TraceClassVisitor;
import java.io.PrintWriter;
import java.io.StringWriter;
/**
* @author Stepan Koltsov
*/
public class ClassBuilderFactories {
public static ClassBuilderFactory TEXT = new ClassBuilderFactory() {
@Override
public ClassBuilder newClassBuilder() {
return new ClassBuilder.Concrete(new TraceClassVisitor(new PrintWriter(new StringWriter())), false);
}
@Override
public String asText(ClassBuilder builder) {
TraceClassVisitor visitor = (TraceClassVisitor) builder.getVisitor();
StringWriter writer = new StringWriter();
visitor.print(new PrintWriter(writer));
return writer.toString();
}
@Override
public byte[] asBytes(ClassBuilder builder) {
throw new UnsupportedOperationException("TEXT generator asked for bytes");
}
};
public static ClassBuilderFactory binaries(final boolean stubs) {
return new ClassBuilderFactory() {
@Override
public ClassBuilder newClassBuilder() {
return new ClassBuilder.Concrete(new ClassWriter(ClassWriter.COMPUTE_FRAMES | ClassWriter.COMPUTE_MAXS){
@Override
protected String getCommonSuperClass(String type1, String type2) {
try {
return super.getCommonSuperClass(type1, type2);
}
catch (Throwable t) {
// @todo we might need at some point do more sofisticated handling
return "java/lang/Object";
}
}
}, stubs);
}
@Override
public String asText(ClassBuilder builder) {
throw new UnsupportedOperationException("BINARIES generator asked for text");
}
@Override
public byte[] asBytes(ClassBuilder builder) {
ClassWriter visitor = (ClassWriter) builder.getVisitor();
return visitor.toByteArray();
}
};
}
}
compiler/backend/src/org/jetbrains/jet/codegen/ClassBuilderFactory.java
-52
View File
@@ -29,56 +29,4 @@ public interface ClassBuilderFactory {
ClassBuilder newClassBuilder();
String asText(ClassBuilder builder);
byte[] asBytes(ClassBuilder builder);
ClassBuilderFactory TEXT = new ClassBuilderFactory() {
@Override
public ClassBuilder newClassBuilder() {
return new ClassBuilder.Concrete(new TraceClassVisitor(new PrintWriter(new StringWriter())));
}
@Override
public String asText(ClassBuilder builder) {
TraceClassVisitor visitor = (TraceClassVisitor) builder.getVisitor();
StringWriter writer = new StringWriter();
visitor.print(new PrintWriter(writer));
return writer.toString();
}
@Override
public byte[] asBytes(ClassBuilder builder) {
throw new UnsupportedOperationException("TEXT generator asked for bytes");
}
};
ClassBuilderFactory BINARIES = new ClassBuilderFactory() {
@Override
public ClassBuilder newClassBuilder() {
return new ClassBuilder.Concrete(new ClassWriter(ClassWriter.COMPUTE_FRAMES | ClassWriter.COMPUTE_MAXS){
@Override
protected String getCommonSuperClass(String type1, String type2) {
try {
return super.getCommonSuperClass(type1, type2);
}
catch (Throwable t) {
// @todo we might need at some point do more sofisticated handling
return "java/lang/Object";
}
}
});
}
@Override
public String asText(ClassBuilder builder) {
throw new UnsupportedOperationException("BINARIES generator asked for text");
}
@Override
public byte[] asBytes(ClassBuilder builder) {
ClassWriter visitor = (ClassWriter) builder.getVisitor();
return visitor.toByteArray();
}
};
}
compiler/backend/src/org/jetbrains/jet/codegen/ClassCodegen.java
+2 -2
View File
@@ -40,7 +40,7 @@ public class ClassCodegen {
final CodegenContext contextForInners = context.intoClass(descriptor, OwnerKind.IMPLEMENTATION, state.getTypeMapper());
if (!classBuilder.generateCode()) {
if (classBuilder.generateCode() == ClassBuilder.Mode.SIGNATURES) {
// Outer class implementation must happen prior inner classes so we get proper scoping tree in JetLightClass's delegate
generateImplementation(context, aClass, OwnerKind.IMPLEMENTATION, contextForInners.accessors, classBuilder);
}
@@ -54,7 +54,7 @@ public class ClassCodegen {
}
}
if (classBuilder.generateCode()) {
if (classBuilder.generateCode() != ClassBuilder.Mode.SIGNATURES) {
generateImplementation(context, aClass, OwnerKind.IMPLEMENTATION, contextForInners.accessors, classBuilder);
}
compiler/backend/src/org/jetbrains/jet/codegen/ClosureCodegen.java
+12 -3
View File
@@ -166,7 +166,10 @@ public class ClosureCodegen extends ObjectOrClosureCodegen {
cv.newField(fun, ACC_PRIVATE | ACC_STATIC | ACC_FINAL, "$instance", classDescr, null, null);
MethodVisitor mv = cv.newMethod(fun, ACC_PUBLIC | ACC_STATIC, "$getInstance", "()" + classDescr, null, new String[0]);
if (cv.generateCode()) {
if (cv.generateCode() == ClassBuilder.Mode.STUBS) {
StubCodegen.generateStubCode(mv);
}
else if (cv.generateCode() == ClassBuilder.Mode.FULL) {
mv.visitCode();
mv.visitFieldInsn(GETSTATIC, name, "$instance", classDescr);
mv.visitInsn(DUP);
@@ -204,7 +207,10 @@ public class ClosureCodegen extends ObjectOrClosureCodegen {
return;
final MethodVisitor mv = cv.newMethod(fun, ACC_PUBLIC, "invoke", bridge.getAsmMethod().getDescriptor(), null, new String[0]);
if (cv.generateCode()) {
if (cv.generateCode() == ClassBuilder.Mode.STUBS) {
StubCodegen.generateStubCode(mv);
}
if (cv.generateCode() == ClassBuilder.Mode.FULL) {
mv.visitCode();
InstructionAdapter iv = new InstructionAdapter(mv);
@@ -280,7 +286,10 @@ public class ClosureCodegen extends ObjectOrClosureCodegen {
final Method constructor = new Method("<init>", Type.VOID_TYPE, argTypes);
final MethodVisitor mv = cv.newMethod(fun, ACC_PUBLIC, "<init>", constructor.getDescriptor(), null, new String[0]);
if (cv.generateCode()) {
if (cv.generateCode() == ClassBuilder.Mode.STUBS) {
StubCodegen.generateStubCode(mv);
}
else if (cv.generateCode() == ClassBuilder.Mode.FULL) {
mv.visitCode();
InstructionAdapter iv = new InstructionAdapter(mv);
compiler/backend/src/org/jetbrains/jet/codegen/FunctionCodegen.java
+18 -5
View File
@@ -115,7 +115,7 @@ public class FunctionCodegen {
final MethodVisitor mv = v.newMethod(fun, flags, jvmSignature.getAsmMethod().getName(), jvmSignature.getAsmMethod().getDescriptor(), jvmSignature.getGenericsSignature(), null);
AnnotationCodegen.forMethod(mv).genAnnotations(functionDescriptor, state.getTypeMapper());
if(v.generateCode()) {
if(v.generateCode() != ClassBuilder.Mode.SIGNATURES) {
int start = 0;
if (needJetAnnotations) {
if (functionDescriptor instanceof PropertyAccessorDescriptor) {
@@ -164,8 +164,12 @@ public class FunctionCodegen {
}
}
if (!isAbstract && v.generateCode() == ClassBuilder.Mode.STUBS) {
StubCodegen.generateStubCode(mv);
}
if (!isAbstract && v.generateCode()) {
if (!isAbstract && v.generateCode() == ClassBuilder.Mode.FULL) {
mv.visitCode();
Label methodBegin = new Label();
@@ -323,7 +327,10 @@ public class FunctionCodegen {
descriptor = descriptor.replace("(","(L" + ownerInternalName + ";");
final MethodVisitor mv = v.newMethod(null, flags | (isConstructor ? 0 : ACC_STATIC), isConstructor ? "<init>" : jvmSignature.getName() + JvmAbi.DEFAULT_PARAMS_IMPL_SUFFIX, descriptor, null, null);
InstructionAdapter iv = new InstructionAdapter(mv);
if (v.generateCode()) {
if (v.generateCode() == ClassBuilder.Mode.STUBS) {
StubCodegen.generateStubCode(mv);
}
else if (v.generateCode() == ClassBuilder.Mode.FULL) {
mv.visitCode();
FrameMap frameMap = owner.prepareFrame(state.getTypeMapper());
@@ -443,7 +450,10 @@ public class FunctionCodegen {
int flags = ACC_PUBLIC | ACC_BRIDGE; // TODO.
final MethodVisitor mv = v.newMethod(null, flags, jvmSignature.getName(), overriden.getDescriptor(), null, null);
if (v.generateCode()) {
if (v.generateCode() == ClassBuilder.Mode.STUBS) {
StubCodegen.generateStubCode(mv);
}
else if (v.generateCode() == ClassBuilder.Mode.FULL) {
mv.visitCode();
Type[] argTypes = overriden.getArgumentTypes();
@@ -481,7 +491,10 @@ public class FunctionCodegen {
int flags = ACC_PUBLIC | ACC_SYNTHETIC; // TODO.
final MethodVisitor mv = v.newMethod(null, flags, method.getName(), method.getDescriptor(), null, null);
if (v.generateCode()) {
if (v.generateCode() == ClassBuilder.Mode.STUBS) {
StubCodegen.generateStubCode(mv);
}
else if (v.generateCode() == ClassBuilder.Mode.FULL) {
mv.visitCode();
Type[] argTypes = method.getArgumentTypes();
compiler/backend/src/org/jetbrains/jet/codegen/ImplementationBodyCodegen.java
+27 -7
View File
@@ -272,7 +272,10 @@ public class ImplementationBodyCodegen extends ClassBodyCodegen {
Type[] argTypes = method.getArgumentTypes();
MethodVisitor mv = v.newMethod(null, ACC_PUBLIC| ACC_BRIDGE| ACC_FINAL, bridge.getName(), method.getDescriptor(), null, null);
if (v.generateCode()) {
if (v.generateCode() == ClassBuilder.Mode.STUBS) {
StubCodegen.generateStubCode(mv);
}
else if (v.generateCode() == ClassBuilder.Mode.FULL) {
mv.visitCode();
InstructionAdapter iv = new InstructionAdapter(mv);
@@ -300,7 +303,10 @@ public class ImplementationBodyCodegen extends ClassBodyCodegen {
Method originalMethod = originalSignature.getJvmMethodSignature().getAsmMethod();
MethodVisitor mv = v.newMethod(null, ACC_PUBLIC | ACC_BRIDGE | ACC_FINAL, method.getName(), method.getDescriptor(), null, null);
PropertyCodegen.generateJetPropertyAnnotation(mv, originalSignature.getPropertyTypeKotlinSignature(), originalSignature.getJvmMethodSignature().getKotlinTypeParameter());
if (v.generateCode()) {
if (v.generateCode() == ClassBuilder.Mode.STUBS) {
StubCodegen.generateStubCode(mv);
}
else if (v.generateCode() == ClassBuilder.Mode.FULL) {
mv.visitCode();
InstructionAdapter iv = new InstructionAdapter(mv);
@@ -323,7 +329,10 @@ public class ImplementationBodyCodegen extends ClassBodyCodegen {
Method originalMethod = originalSignature2.getJvmMethodSignature().getAsmMethod();
MethodVisitor mv = v.newMethod(null, ACC_PUBLIC | ACC_BRIDGE | ACC_FINAL, method.getName(), method.getDescriptor(), null, null);
PropertyCodegen.generateJetPropertyAnnotation(mv, originalSignature2.getPropertyTypeKotlinSignature(), originalSignature2.getJvmMethodSignature().getKotlinTypeParameter());
if (v.generateCode()) {
if (v.generateCode() == ClassBuilder.Mode.STUBS) {
StubCodegen.generateStubCode(mv);
}
else if (v.generateCode() == ClassBuilder.Mode.FULL) {
mv.visitCode();
InstructionAdapter iv = new InstructionAdapter(mv);
@@ -482,8 +491,8 @@ public class ImplementationBodyCodegen extends ClassBodyCodegen {
int flags = ACC_PUBLIC; // TODO
final MethodVisitor mv = v.newMethod(myClass, flags, constructorMethod.getName(), constructorMethod.getAsmMethod().getDescriptor(), constructorMethod.getGenericsSignature(), null);
if (!v.generateCode()) return;
if (v.generateCode() == ClassBuilder.Mode.SIGNATURES) return;
AnnotationVisitor jetConstructorVisitor = mv.visitAnnotation(JvmStdlibNames.JET_CONSTRUCTOR.getDescriptor(), true);
if (constructorDescriptor == null) {
jetConstructorVisitor.visit(JvmStdlibNames.JET_CONSTRUCTOR_HIDDEN_FIELD, true);
@@ -509,6 +518,11 @@ public class ImplementationBodyCodegen extends ClassBodyCodegen {
}
}
if (v.generateCode() == ClassBuilder.Mode.STUBS) {
StubCodegen.generateStubCode(mv);
return;
}
mv.visitCode();
List<ValueParameterDescriptor> paramDescrs = constructorDescriptor != null
@@ -678,7 +692,10 @@ public class ImplementationBodyCodegen extends ClassBodyCodegen {
Method functionOriginal = typeMapper.mapSignature(fun.getName(), fun.getOriginal()).getAsmMethod();
final MethodVisitor mv = v.newMethod(myClass, flags, function.getName(), function.getDescriptor(), null, null);
if (v.generateCode()) {
if (v.generateCode() == ClassBuilder.Mode.STUBS) {
StubCodegen.generateStubCode(mv);
}
else if (v.generateCode() == ClassBuilder.Mode.FULL) {
mv.visitCode();
codegen.generateThisOrOuter(descriptor);
@@ -813,7 +830,10 @@ public class ImplementationBodyCodegen extends ClassBodyCodegen {
CallableMethod method = typeMapper.mapToCallableMethod(constructorDescriptor, kind, typeMapper.hasThis0(constructorDescriptor.getContainingDeclaration()));
int flags = ACC_PUBLIC; // TODO
final MethodVisitor mv = v.newMethod(constructor, flags, "<init>", method.getSignature().getAsmMethod().getDescriptor(), null, null);
if (v.generateCode()) {
if (v.generateCode() == ClassBuilder.Mode.STUBS) {
StubCodegen.generateStubCode(mv);
}
else if (v.generateCode() == ClassBuilder.Mode.FULL) {
mv.visitCode();
ConstructorFrameMap frameMap = new ConstructorFrameMap(method, constructorDescriptor, typeMapper.hasThis0(constructorDescriptor.getContainingDeclaration()));
compiler/backend/src/org/jetbrains/jet/codegen/NamespaceCodegen.java
+1 -1
View File
@@ -89,7 +89,7 @@ public class NamespaceCodegen {
private void generateStaticInitializers(JetFile namespace) {
MethodVisitor mv = v.newMethod(namespace, ACC_PUBLIC | ACC_STATIC, "<clinit>", "()V", null, null);
if (v.generateCode()) {
if (v.generateCode() == ClassBuilder.Mode.FULL) {
mv.visitCode();
FrameMap frameMap = new FrameMap();
compiler/backend/src/org/jetbrains/jet/codegen/PropertyCodegen.java
+46 -38
View File
@@ -169,24 +169,28 @@ public class PropertyCodegen {
AnnotationCodegen.forMethod(mv).genAnnotations(propertyDescriptor.getGetter(), state.getTypeMapper());
}
if (v.generateCode() && (!isTrait || kind instanceof OwnerKind.DelegateKind)) {
if (v.generateCode() != ClassBuilder.Mode.SIGNATURES && (!isTrait || kind instanceof OwnerKind.DelegateKind)) {
mv.visitCode();
InstructionAdapter iv = new InstructionAdapter(mv);
if (kind != OwnerKind.NAMESPACE) {
iv.load(0, JetTypeMapper.TYPE_OBJECT);
if (v.generateCode() == ClassBuilder.Mode.STUBS) {
StubCodegen.generateStubThrow(mv);
} else {
InstructionAdapter iv = new InstructionAdapter(mv);
if (kind != OwnerKind.NAMESPACE) {
iv.load(0, JetTypeMapper.TYPE_OBJECT);
}
final Type type = state.getTypeMapper().mapType(propertyDescriptor.getType());
if (kind instanceof OwnerKind.DelegateKind) {
OwnerKind.DelegateKind dk = (OwnerKind.DelegateKind) kind;
dk.getDelegate().put(JetTypeMapper.TYPE_OBJECT, iv);
iv.invokeinterface(dk.getOwnerClass(), getterName, descriptor);
}
else {
iv.visitFieldInsn(kind == OwnerKind.NAMESPACE ? Opcodes.GETSTATIC : Opcodes.GETFIELD,
state.getTypeMapper().getOwner(propertyDescriptor, kind), propertyDescriptor.getName(),
type.getDescriptor());
}
iv.areturn(type);
}
final Type type = state.getTypeMapper().mapType(propertyDescriptor.getType());
if (kind instanceof OwnerKind.DelegateKind) {
OwnerKind.DelegateKind dk = (OwnerKind.DelegateKind) kind;
dk.getDelegate().put(JetTypeMapper.TYPE_OBJECT, iv);
iv.invokeinterface(dk.getOwnerClass(), getterName, descriptor);
}
else {
iv.visitFieldInsn(kind == OwnerKind.NAMESPACE ? Opcodes.GETSTATIC : Opcodes.GETFIELD,
state.getTypeMapper().getOwner(propertyDescriptor, kind), propertyDescriptor.getName(),
type.getDescriptor());
}
iv.areturn(type);
FunctionCodegen.endVisit(mv, "getter", origin);
}
}
@@ -233,32 +237,36 @@ public class PropertyCodegen {
AnnotationCodegen.forMethod(mv).genAnnotations(propertyDescriptor.getSetter(), state.getTypeMapper());
}
if (v.generateCode() && (!isTrait || kind instanceof OwnerKind.DelegateKind)) {
if (v.generateCode() != ClassBuilder.Mode.SIGNATURES && (!isTrait || kind instanceof OwnerKind.DelegateKind)) {
mv.visitCode();
InstructionAdapter iv = new InstructionAdapter(mv);
final Type type = state.getTypeMapper().mapType(propertyDescriptor.getType());
int paramCode = 0;
if (kind != OwnerKind.NAMESPACE) {
iv.load(0, JetTypeMapper.TYPE_OBJECT);
paramCode = 1;
}
if (v.generateCode() == ClassBuilder.Mode.STUBS) {
StubCodegen.generateStubThrow(mv);
} else {
InstructionAdapter iv = new InstructionAdapter(mv);
final Type type = state.getTypeMapper().mapType(propertyDescriptor.getType());
int paramCode = 0;
if (kind != OwnerKind.NAMESPACE) {
iv.load(0, JetTypeMapper.TYPE_OBJECT);
paramCode = 1;
}
if (kind instanceof OwnerKind.DelegateKind) {
OwnerKind.DelegateKind dk = (OwnerKind.DelegateKind) kind;
iv.load(0, JetTypeMapper.TYPE_OBJECT);
dk.getDelegate().put(JetTypeMapper.TYPE_OBJECT, iv);
if (kind instanceof OwnerKind.DelegateKind) {
OwnerKind.DelegateKind dk = (OwnerKind.DelegateKind) kind;
iv.load(0, JetTypeMapper.TYPE_OBJECT);
dk.getDelegate().put(JetTypeMapper.TYPE_OBJECT, iv);
iv.load(paramCode, type);
iv.invokeinterface(dk.getOwnerClass(), setterName(propertyDescriptor.getName()), descriptor);
}
else {
iv.load(paramCode, type);
iv.visitFieldInsn(kind == OwnerKind.NAMESPACE ? Opcodes.PUTSTATIC : Opcodes.PUTFIELD,
state.getTypeMapper().getOwner(propertyDescriptor, kind), propertyDescriptor.getName(),
type.getDescriptor());
}
iv.load(paramCode, type);
iv.invokeinterface(dk.getOwnerClass(), setterName(propertyDescriptor.getName()), descriptor);
}
else {
iv.load(paramCode, type);
iv.visitFieldInsn(kind == OwnerKind.NAMESPACE ? Opcodes.PUTSTATIC : Opcodes.PUTFIELD,
state.getTypeMapper().getOwner(propertyDescriptor, kind), propertyDescriptor.getName(),
type.getDescriptor());
}
iv.visitInsn(Opcodes.RETURN);
iv.visitInsn(Opcodes.RETURN);
}
FunctionCodegen.endVisit(mv, "setter", origin);
mv.visitEnd();
}
compiler/backend/src/org/jetbrains/jet/codegen/StubCodegen.java
+41
View File
@@ -0,0 +1,41 @@
/*
* Copyright 2000-2012 JetBrains s.r.o.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.jetbrains.jet.codegen;
import org.objectweb.asm.MethodVisitor;
import org.objectweb.asm.Type;
import org.objectweb.asm.commons.InstructionAdapter;
/**
* @author Stepan Koltsov
*/
public class StubCodegen {
public static void generateStubThrow(MethodVisitor mv) {
new InstructionAdapter(mv).anew(Type.getObjectType("java/lang/RuntimeException"));
new InstructionAdapter(mv).dup();
new InstructionAdapter(mv).aconst("Stubs are for compiler only, do not add them to runtime classpath");
new InstructionAdapter(mv).invokespecial("java/lang/RuntimeException", "<init>", "(Ljava/lang/String;)V");
new InstructionAdapter(mv).athrow();
}
public static void generateStubCode(MethodVisitor mv) {
mv.visitCode();
generateStubThrow(mv);
mv.visitMaxs(-1, -1);
mv.visitEnd();
}
}