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org.testifyproject.bytebuddy.implementation.InvokeDynamic Maven / Gradle / Ivy
package org.testifyproject.bytebuddy.implementation;
import edu.umd.cs.findbugs.annotations.SuppressFBWarnings;
import org.testifyproject.bytebuddy.description.enumeration.EnumerationDescription;
import org.testifyproject.bytebuddy.description.field.FieldDescription;
import org.testifyproject.bytebuddy.description.field.FieldList;
import org.testifyproject.bytebuddy.description.method.MethodDescription;
import org.testifyproject.bytebuddy.description.method.ParameterList;
import org.testifyproject.bytebuddy.description.type.TypeDefinition;
import org.testifyproject.bytebuddy.description.type.TypeDescription;
import org.testifyproject.bytebuddy.description.type.TypeList;
import org.testifyproject.bytebuddy.dynamic.scaffold.InstrumentedType;
import org.testifyproject.bytebuddy.implementation.bytecode.ByteCodeAppender;
import org.testifyproject.bytebuddy.implementation.bytecode.Removal;
import org.testifyproject.bytebuddy.implementation.bytecode.StackManipulation;
import org.testifyproject.bytebuddy.implementation.bytecode.assign.Assigner;
import org.testifyproject.bytebuddy.implementation.bytecode.constant.*;
import org.testifyproject.bytebuddy.implementation.bytecode.member.FieldAccess;
import org.testifyproject.bytebuddy.implementation.bytecode.member.MethodInvocation;
import org.testifyproject.bytebuddy.implementation.bytecode.member.MethodReturn;
import org.testifyproject.bytebuddy.implementation.bytecode.member.MethodVariableAccess;
import org.testifyproject.bytebuddy.utility.CompoundList;
import org.testifyproject.bytebuddy.utility.JavaInstance;
import org.testifyproject.bytebuddy.utility.JavaType;
import org.testifyproject.bytebuddy.utility.RandomString;
import org.testifyproject.bytebuddy.jar.asm.MethodVisitor;
import org.testifyproject.bytebuddy.jar.asm.Opcodes;
import org.testifyproject.bytebuddy.jar.asm.Type;
import java.lang.reflect.Constructor;
import java.lang.reflect.Method;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;
import static org.testifyproject.bytebuddy.matcher.ElementMatchers.isVisibleTo;
import static org.testifyproject.bytebuddy.matcher.ElementMatchers.named;
/**
* An implementation that applies a
* dynamic method invocation .
*/
public class InvokeDynamic implements Implementation.Composable {
/**
* The bootstrap method.
*/
protected final MethodDescription.InDefinedShape bootstrapMethod;
/**
* The arguments that are provided to the bootstrap method.
*/
protected final List handleArguments;
/**
* The target provided that identifies the method to be bootstrapped.
*/
protected final InvocationProvider invocationProvider;
/**
* A handler that handles the method return.
*/
protected final TerminationHandler terminationHandler;
/**
* The assigner to be used.
*/
protected final Assigner assigner;
/**
* Indicates if dynamic type castings should be attempted for incompatible assignments.
*/
protected final Assigner.Typing typing;
/**
* Creates a new invoke dynamic implementation.
*
* @param bootstrapMethod The bootstrap method.
* @param handleArguments The arguments that are provided to the bootstrap method.
* @param invocationProvider The target provided that identifies the method to be bootstrapped.
* @param terminationHandler A handler that handles the method return.
* @param assigner The assigner to be used.
* @param typing Indicates if dynamic type castings should be attempted for incompatible assignments.
*/
protected InvokeDynamic(MethodDescription.InDefinedShape bootstrapMethod,
List handleArguments,
InvocationProvider invocationProvider,
TerminationHandler terminationHandler,
Assigner assigner,
Assigner.Typing typing) {
this.bootstrapMethod = bootstrapMethod;
this.handleArguments = handleArguments;
this.invocationProvider = invocationProvider;
this.terminationHandler = terminationHandler;
this.assigner = assigner;
this.typing = typing;
}
/**
* Implements the instrumented method with a dynamic method invocation which is linked at runtime using the
* specified bootstrap method.
*
* @param method The bootstrap method that is used to link the instrumented method.
* @param rawArgument The arguments that are handed to the bootstrap method. Any argument must be saved in the
* constant pool, i.e. primitive types (represented as their wrapper types) with a size of
* at least 32 bit, {@link java.lang.String} types, {@link java.lang.Class} types as well
* as {@code MethodType} and {@code MethodHandle} instances. In order to avoid class loading,
* it is also possible to supply unloaded types as {@link TypeDescription},
* {@link org.testifyproject.bytebuddy.utility.JavaInstance.MethodHandle} or
* {@link org.testifyproject.bytebuddy.utility.JavaInstance.MethodType} instances.
* instrumented method are passed to the bootstrapped method unless explicit parameters are specified.
* @return An implementation where a {@code this} reference, if available, and all arguments of the
* instrumented method are passed to the bootstrapped method unless explicit parameters are specified.
*/
public static WithImplicitTarget bootstrap(Method method, Object... rawArgument) {
return bootstrap(new MethodDescription.ForLoadedMethod(method), rawArgument);
}
/**
* Implements the instrumented method with a dynamic method invocation which is linked at runtime using the
* specified bootstrap method.
*
* @param method The bootstrap method that is used to link the instrumented method.
* @param rawArguments The arguments that are handed to the bootstrap method. Any argument must be saved in the
* constant pool, i.e. primitive types (represented as their wrapper types) with a size of
* at least 32 bit, {@link java.lang.String} types, {@link java.lang.Class} types as well
* as {@code MethodType} and {@code MethodHandle} instances. In order to avoid class loading,
* it is also possible to supply unloaded types as {@link TypeDescription},
* {@link org.testifyproject.bytebuddy.utility.JavaInstance.MethodHandle} or
* {@link org.testifyproject.bytebuddy.utility.JavaInstance.MethodType} instances.
* instrumented method are passed to the bootstrapped method unless explicit parameters are specified.
* @return An implementation where a {@code this} reference, if available, and all arguments of the
* instrumented method are passed to the bootstrapped method unless explicit parameters are specified.
*/
public static WithImplicitTarget bootstrap(Method method, List rawArguments) {
return bootstrap(new MethodDescription.ForLoadedMethod(method), rawArguments);
}
/**
* Implements the instrumented method with a dynamic method invocation which is linked at runtime using the
* specified bootstrap constructor.
*
* @param constructor The bootstrap constructor that is used to link the instrumented method.
* @param rawArgument The arguments that are handed to the bootstrap method. Any argument must be saved in the
* constant pool, i.e. primitive types (represented as their wrapper types) with a size of
* at least 32 bit, {@link java.lang.String} types, {@link java.lang.Class} types as well
* as {@code MethodType} and {@code MethodHandle} instances. In order to avoid class loading,
* it is also possible to supply unloaded types as {@link TypeDescription},
* {@link org.testifyproject.bytebuddy.utility.JavaInstance.MethodHandle} or
* {@link org.testifyproject.bytebuddy.utility.JavaInstance.MethodType} instances.
* @return An implementation where a {@code this} reference, if available, and all arguments of the
* instrumented method are passed to the bootstrapped method unless explicit parameters are specified.
*/
public static WithImplicitTarget bootstrap(Constructor constructor, Object... rawArgument) {
return bootstrap(new MethodDescription.ForLoadedConstructor(constructor), rawArgument);
}
/**
* Implements the instrumented method with a dynamic method invocation which is linked at runtime using the
* specified bootstrap constructor.
*
* @param constructor The bootstrap constructor that is used to link the instrumented method.
* @param rawArguments The arguments that are handed to the bootstrap method. Any argument must be saved in the
* constant pool, i.e. primitive types (represented as their wrapper types) with a size of
* at least 32 bit, {@link java.lang.String} types, {@link java.lang.Class} types as well
* as {@code MethodType} and {@code MethodHandle} instances. In order to avoid class loading,
* it is also possible to supply unloaded types as {@link TypeDescription},
* {@link org.testifyproject.bytebuddy.utility.JavaInstance.MethodHandle} or
* {@link org.testifyproject.bytebuddy.utility.JavaInstance.MethodType} instances.
* @return An implementation where a {@code this} reference, if available, and all arguments of the
* instrumented method are passed to the bootstrapped method unless explicit parameters are specified.
*/
public static WithImplicitTarget bootstrap(Constructor constructor, List rawArguments) {
return bootstrap(new MethodDescription.ForLoadedConstructor(constructor), rawArguments);
}
/**
* Implements the instrumented method with a dynamic method invocation which is linked at runtime using the
* specified bootstrap method or constructor.
*
* @param bootstrapMethod The bootstrap method or constructor that is used to link the instrumented method.
* @param rawArgument The arguments that are handed to the bootstrap method. Any argument must be saved in the
* constant pool, i.e. primitive types (represented as their wrapper types) with a size of
* at least 32 bit, {@link java.lang.String} types, {@link java.lang.Class} types as well
* as {@code MethodType} and {@code MethodHandle} instances. In order to avoid class loading,
* it is also possible to supply unloaded types as {@link TypeDescription},
* {@link org.testifyproject.bytebuddy.utility.JavaInstance.MethodHandle} or
* {@link org.testifyproject.bytebuddy.utility.JavaInstance.MethodType} instances.
* @return An implementation where a {@code this} reference, if available, and all arguments of the
* instrumented method are passed to the bootstrapped method unless explicit parameters are specified.
*/
public static WithImplicitTarget bootstrap(MethodDescription.InDefinedShape bootstrapMethod, Object... rawArgument) {
return bootstrap(bootstrapMethod, Arrays.asList(rawArgument));
}
/**
* Implements the instrumented method with a dynamic method invocation which is linked at runtime using the
* specified bootstrap method or constructor.
*
* @param bootstrapMethod The bootstrap method or constructor that is used to link the instrumented method.
* @param rawArguments The arguments that are handed to the bootstrap method. Any argument must be saved in the
* constant pool, i.e. primitive types (represented as their wrapper types) with a size of
* at least 32 bit, {@link java.lang.String} types, {@link java.lang.Class} types as well
* as {@code MethodType} and {@code MethodHandle} instances. In order to avoid class loading,
* it is also possible to supply unloaded types as {@link TypeDescription},
* {@link org.testifyproject.bytebuddy.utility.JavaInstance.MethodHandle} or
* {@link org.testifyproject.bytebuddy.utility.JavaInstance.MethodType} instances.
* @return An implementation where a {@code this} reference, if available, and all arguments of the
* instrumented method are passed to the bootstrapped method unless explicit parameters are specified.
*/
public static WithImplicitTarget bootstrap(MethodDescription.InDefinedShape bootstrapMethod, List rawArguments) {
List arguments = new ArrayList(rawArguments.size());
for (Object argument : rawArguments) {
if (argument instanceof Class) {
argument = new TypeDescription.ForLoadedType((Class) argument);
} else if (JavaType.METHOD_HANDLE.getTypeStub().isInstance(argument)) {
argument = JavaInstance.MethodHandle.ofLoaded(argument);
} else if (JavaType.METHOD_TYPE.getTypeStub().isInstance(argument)) {
argument = JavaInstance.MethodType.ofLoaded(argument);
}
arguments.add(argument);
}
if (!bootstrapMethod.isBootstrap(arguments)) {
throw new IllegalArgumentException("Not a valid bootstrap method " + bootstrapMethod + " for " + arguments);
}
List serializedArguments = new ArrayList(arguments.size());
for (Object anArgument : arguments) {
if (anArgument instanceof TypeDescription) {
anArgument = Type.getType(((TypeDescription) anArgument).getDescriptor());
} else if (anArgument instanceof JavaInstance) {
anArgument = ((JavaInstance) anArgument).asConstantPoolValue();
}
serializedArguments.add(anArgument);
}
return new WithImplicitTarget(bootstrapMethod,
serializedArguments,
new InvocationProvider.Default(),
TerminationHandler.ForMethodReturn.INSTANCE,
Assigner.DEFAULT,
Assigner.Typing.STATIC);
}
/**
* Requires the bootstrap method to bootstrap a method that takes the specified {@code boolean} arguments
* as its next parameters.
*
* @param value The arguments to pass to the bootstrapped method.
* @return This invoke dynamic implementation where the bootstrapped method is passed the specified arguments.
*/
public InvokeDynamic withBooleanValue(boolean... value) {
List argumentProviders = new ArrayList(value.length);
for (boolean aValue : value) {
argumentProviders.add(new InvocationProvider.ArgumentProvider.ForBooleanConstant(aValue));
}
return new InvokeDynamic(bootstrapMethod,
handleArguments,
invocationProvider.appendArguments(argumentProviders),
terminationHandler,
assigner,
typing);
}
/**
* Requires the bootstrap method to bootstrap a method that takes the specified {@code byte} arguments
* as its next parameters.
*
* @param value The arguments to pass to the bootstrapped method.
* @return This invoke dynamic implementation where the bootstrapped method is passed the specified arguments.
*/
public InvokeDynamic withByteValue(byte... value) {
List argumentProviders = new ArrayList(value.length);
for (byte aValue : value) {
argumentProviders.add(new InvocationProvider.ArgumentProvider.ForByteConstant(aValue));
}
return new InvokeDynamic(bootstrapMethod,
handleArguments,
invocationProvider.appendArguments(argumentProviders),
terminationHandler,
assigner,
typing);
}
/**
* Requires the bootstrap method to bootstrap a method that takes the specified {@code short} arguments
* as its next parameters.
*
* @param value The arguments to pass to the bootstrapped method.
* @return This invoke dynamic implementation where the bootstrapped method is passed the specified arguments.
*/
public InvokeDynamic withShortValue(short... value) {
List argumentProviders = new ArrayList(value.length);
for (short aValue : value) {
argumentProviders.add(new InvocationProvider.ArgumentProvider.ForShortConstant(aValue));
}
return new InvokeDynamic(bootstrapMethod,
handleArguments,
invocationProvider.appendArguments(argumentProviders),
terminationHandler,
assigner,
typing);
}
/**
* Requires the bootstrap method to bootstrap a method that takes the specified {@code char} arguments
* as its next parameters.
*
* @param value The arguments to pass to the bootstrapped method.
* @return This invoke dynamic implementation where the bootstrapped method is passed the specified arguments.
*/
public InvokeDynamic withCharacterValue(char... value) {
List argumentProviders = new ArrayList(value.length);
for (char aValue : value) {
argumentProviders.add(new InvocationProvider.ArgumentProvider.ForCharacterConstant(aValue));
}
return new InvokeDynamic(bootstrapMethod,
handleArguments,
invocationProvider.appendArguments(argumentProviders),
terminationHandler,
assigner,
typing);
}
/**
* Requires the bootstrap method to bootstrap a method that takes the specified {@code int} arguments
* as its next parameters.
*
* @param value The arguments to pass to the bootstrapped method.
* @return This invoke dynamic implementation where the bootstrapped method is passed the specified arguments.
*/
public InvokeDynamic withIntegerValue(int... value) {
List argumentProviders = new ArrayList(value.length);
for (int aValue : value) {
argumentProviders.add(new InvocationProvider.ArgumentProvider.ForIntegerConstant(aValue));
}
return new InvokeDynamic(bootstrapMethod,
handleArguments,
invocationProvider.appendArguments(argumentProviders),
terminationHandler,
assigner,
typing);
}
/**
* Requires the bootstrap method to bootstrap a method that takes the specified {@code long} arguments
* as its next parameters.
*
* @param value The arguments to pass to the bootstrapped method.
* @return This invoke dynamic implementation where the bootstrapped method is passed the specified arguments.
*/
public InvokeDynamic withLongValue(long... value) {
List argumentProviders = new ArrayList(value.length);
for (long aValue : value) {
argumentProviders.add(new InvocationProvider.ArgumentProvider.ForLongConstant(aValue));
}
return new InvokeDynamic(bootstrapMethod,
handleArguments,
invocationProvider.appendArguments(argumentProviders),
terminationHandler,
assigner,
typing);
}
/**
* Requires the bootstrap method to bootstrap a method that takes the specified {@code float} arguments
* as its next parameters.
*
* @param value The arguments to pass to the bootstrapped method.
* @return This invoke dynamic implementation where the bootstrapped method is passed the specified arguments.
*/
public InvokeDynamic withFloatValue(float... value) {
List argumentProviders = new ArrayList(value.length);
for (float aValue : value) {
argumentProviders.add(new InvocationProvider.ArgumentProvider.ForFloatConstant(aValue));
}
return new InvokeDynamic(bootstrapMethod,
handleArguments,
invocationProvider.appendArguments(argumentProviders),
terminationHandler,
assigner,
typing);
}
/**
* Requires the bootstrap method to bootstrap a method that takes the specified {@code double} arguments
* as its next parameters.
*
* @param value The arguments to pass to the bootstrapped method.
* @return This invoke dynamic implementation where the bootstrapped method is passed the specified arguments.
*/
public InvokeDynamic withDoubleValue(double... value) {
List argumentProviders = new ArrayList(value.length);
for (double aValue : value) {
argumentProviders.add(new InvocationProvider.ArgumentProvider.ForDoubleConstant(aValue));
}
return new InvokeDynamic(bootstrapMethod,
handleArguments,
invocationProvider.appendArguments(argumentProviders),
terminationHandler,
assigner,
typing);
}
/**
*
* Requires the bootstrap method to bootstrap a method that takes the specified arguments as its next parameters.
* Note that any primitive parameters are passed as their wrapper types. Furthermore, values that can be stored
* in the instrumented class's constant pool might be of different object identity when passed to the
* bootstrapped method or might not be visible to the the created class what later results in a runtime error.
*
*
* @param value The arguments to pass to the bootstrapped method.
* @return This invoke dynamic implementation where the bootstrapped method is passed the specified arguments.
*/
public InvokeDynamic withValue(Object... value) {
List argumentProviders = new ArrayList(value.length);
for (Object aValue : value) {
argumentProviders.add(InvocationProvider.ArgumentProvider.ConstantPoolWrapper.of(aValue));
}
return new InvokeDynamic(bootstrapMethod,
handleArguments,
invocationProvider.appendArguments(argumentProviders),
terminationHandler,
assigner,
typing);
}
/**
*
* Requires the bootstrap method to bootstrap a method that takes the specified argument as its next parameter while
* allowing to specify the value to be of a different type than the actual instance type.
*
*
* @param value The arguments to pass to the bootstrapped method.
* @return This invoke dynamic implementation where the bootstrapped method is passed the specified arguments.
*/
public WithImplicitFieldType withReference(Object value) {
return new WithImplicitFieldType(bootstrapMethod,
handleArguments,
invocationProvider,
terminationHandler,
assigner,
typing,
value);
}
/**
* Requires the bootstrap method to bootstrap a method that takes the specified arguments as its next parameters.
* Note that any primitive parameters are passed as their wrapper types. Any value that is passed to the
* bootstrapped method is guaranteed to be of the same object identity.
*
* @param value The arguments to pass to the bootstrapped method.
* @return This invoke dynamic implementation where the bootstrapped method is passed the specified arguments.
*/
public InvokeDynamic withReference(Object... value) {
List argumentProviders = new ArrayList(value.length);
for (Object aValue : value) {
argumentProviders.add(InvocationProvider.ArgumentProvider.ForStaticField.of(aValue));
}
return new InvokeDynamic(bootstrapMethod,
handleArguments,
invocationProvider.appendArguments(argumentProviders),
terminationHandler,
assigner,
typing);
}
/**
* Hands the provided types to the dynamically bound method. The type is stored in the generated class's
* constant pool and is loaded at invocation time. For this to be possible, the created class's
* class loader must be able to see the provided type.
*
* @param typeDescription The classes to provide to the bound method as an argument.
* @return This invoke dynamic implementation where the bootstrapped method is passed the specified type.
*/
public InvokeDynamic withType(TypeDescription... typeDescription) {
List argumentProviders = new ArrayList(typeDescription.length);
for (TypeDescription aTypeDescription : typeDescription) {
argumentProviders.add(new InvocationProvider.ArgumentProvider.ForClassConstant(aTypeDescription));
}
return new InvokeDynamic(bootstrapMethod,
handleArguments,
invocationProvider.appendArguments(argumentProviders),
terminationHandler,
assigner,
typing);
}
/**
* Hands the provided enumerations to the dynamically bound method. The enumeration values are read from
* the enumeration class on demand. For this to be possible, the created class's class loader must be
* able to see the enumeration type.
*
* @param enumerationDescription The enumeration values to provide to the bound method as an argument.
* @return This invoke dynamic implementation where the bootstrapped method is passed the specified enumerations.
*/
public InvokeDynamic withEnumeration(EnumerationDescription... enumerationDescription) {
List argumentProviders = new ArrayList(enumerationDescription.length);
for (EnumerationDescription anEnumerationDescription : enumerationDescription) {
argumentProviders.add(new InvocationProvider.ArgumentProvider.ForEnumerationValue(anEnumerationDescription));
}
return new InvokeDynamic(bootstrapMethod,
handleArguments,
invocationProvider.appendArguments(argumentProviders),
terminationHandler,
assigner,
typing);
}
/**
* Hands the provided Java instance to the dynamically bound method. The instance is stored in the generated class's
* constant pool and is loaded at invocation time. For this to be possible, the created class's class loader must
* be able to create the provided Java instance.
*
* @param javaInstance The Java instance to provide to the bound method as an argument.
* @return This invoke dynamic implementation where the bootstrapped method is passed the specified Java instance.
*/
public InvokeDynamic withInstance(JavaInstance... javaInstance) {
List argumentProviders = new ArrayList(javaInstance.length);
for (JavaInstance aJavaInstance : javaInstance) {
argumentProviders.add(new InvocationProvider.ArgumentProvider.ForJavaInstance(aJavaInstance));
}
return new InvokeDynamic(bootstrapMethod,
handleArguments,
invocationProvider.appendArguments(argumentProviders),
terminationHandler,
assigner,
typing);
}
/**
* Passes {@code null} values of the given types to the bootstrapped method.
*
* @param type The type that the {@code null} values should represent.
* @return This invoke dynamic implementation where the bootstrapped method is passed the specified arguments.
*/
public InvokeDynamic withNullValue(Class... type) {
return withNullValue(new TypeList.ForLoadedTypes(type).toArray(new TypeDescription[type.length]));
}
/**
* Passes {@code null} values of the given types to the bootstrapped method.
*
* @param typeDescription The type that the {@code null} values should represent.
* @return This invoke dynamic implementation where the bootstrapped method is passed the specified arguments.
*/
public InvokeDynamic withNullValue(TypeDescription... typeDescription) {
List argumentProviders = new ArrayList(typeDescription.length);
for (TypeDescription aTypeDescription : typeDescription) {
if (aTypeDescription.isPrimitive()) {
throw new IllegalArgumentException("Cannot assign null to primitive type: " + aTypeDescription);
}
argumentProviders.add(new InvocationProvider.ArgumentProvider.ForNullValue(aTypeDescription));
}
return new InvokeDynamic(bootstrapMethod,
handleArguments,
invocationProvider.appendArguments(argumentProviders),
terminationHandler,
assigner,
typing);
}
/**
* Passes parameters of the instrumented method to the bootstrapped method.
*
* @param index The indices of the parameters that should be passed to the bootstrapped method.
* @return This invoke dynamic implementation where the bootstrapped method is passed the specified arguments.
*/
public InvokeDynamic withArgument(int... index) {
List argumentProviders = new ArrayList(index.length);
for (int anIndex : index) {
if (anIndex < 0) {
throw new IllegalArgumentException("Method parameter indices cannot be negative: " + anIndex);
}
argumentProviders.add(new InvocationProvider.ArgumentProvider.ForMethodParameter(anIndex));
}
return new InvokeDynamic(bootstrapMethod,
handleArguments,
invocationProvider.appendArguments(argumentProviders),
terminationHandler,
assigner,
typing);
}
/**
* Passes a parameter of the instrumented method to the bootstrapped method.
*
* @param index The index of the parameter that should be passed to the bootstrapped method.
* @return This invoke dynamic implementation where the bootstrapped method is passed the specified argument
* with its implicit type.
*/
public WithImplicitArgumentType withArgument(int index) {
if (index < 0) {
throw new IllegalArgumentException("Method parameter indices cannot be negative: " + index);
}
return new WithImplicitArgumentType(bootstrapMethod,
handleArguments,
invocationProvider,
terminationHandler,
assigner,
typing,
index);
}
/**
* Passes references to {@code this} onto the operand stack where the instance is represented as
* the given types.
*
* @param type The types as which the {@code this} reference of the intercepted method should be masked.
* @return This implementation where {@code this} references are passed as the next arguments.
*/
public InvokeDynamic withThis(Class... type) {
return withThis(new TypeList.ForLoadedTypes(type).toArray(new TypeDescription[type.length]));
}
/**
* Passes references to {@code this} onto the operand stack where the instance is represented as
* the given types.
*
* @param typeDescription The types as which the {@code this} reference of the intercepted method should be masked.
* @return This implementation where {@code this} references are passed as the next arguments.
*/
public InvokeDynamic withThis(TypeDescription... typeDescription) {
List argumentProviders = new ArrayList(typeDescription.length);
for (TypeDescription aTypeDescription : typeDescription) {
argumentProviders.add(new InvocationProvider.ArgumentProvider.ForThisInstance(aTypeDescription));
}
return new InvokeDynamic(bootstrapMethod,
handleArguments,
invocationProvider.appendArguments(argumentProviders),
terminationHandler,
assigner,
typing);
}
/**
* Adds all method arguments to the the bootstrapped method.
*
* @return This invoke dynamic implementation with all parameters of the instrumented method added.
*/
public InvokeDynamic withMethodArguments() {
return new InvokeDynamic(bootstrapMethod,
handleArguments,
invocationProvider.appendArgument(InvocationProvider.ArgumentProvider.ForInterceptedMethodParameters.INSTANCE),
terminationHandler,
assigner,
typing);
}
/**
* Adds a potential {@code this} reference and all method arguments to the the bootstrapped method.
*
* @return This invoke dynamic implementation with a potential {@code this} reference and all
* parameters of the instrumented method added.
*/
public InvokeDynamic withImplicitAndMethodArguments() {
return new InvokeDynamic(bootstrapMethod,
handleArguments,
invocationProvider.appendArgument(InvocationProvider.ArgumentProvider.ForInterceptedMethodInstanceAndParameters.INSTANCE),
terminationHandler,
assigner,
typing);
}
/**
* Passes the value of the specified instance field to the bootstrapped method. The field value of the created
* private field must be set manually on any instrumented instance.
*
* @param fieldName The name of the field.
* @param fieldType The type of the field.
* @return This invoke dynamic implementation where the bootstrapped method is passed the value of the defined
* field.
*/
public InvokeDynamic withInstanceField(String fieldName, java.lang.reflect.Type fieldType) {
return withInstanceField(fieldName, TypeDefinition.Sort.describe(fieldType));
}
/**
* Passes the value of the specified instance field to the bootstrapped method. The field value of the created
* private field must be set manually on any instrumented instance.
*
* @param fieldName The name of the field.
* @param fieldType The type of the field.
* @return This invoke dynamic implementation where the bootstrapped method is passed the value of the defined
* field.
*/
public InvokeDynamic withInstanceField(String fieldName, TypeDefinition fieldType) {
return new InvokeDynamic(bootstrapMethod,
handleArguments,
invocationProvider.appendArgument(new InvocationProvider.ArgumentProvider.ForInstanceField(fieldName, fieldType.asGenericType())),
terminationHandler,
assigner,
typing);
}
/**
* Passes the values of the specified fields to the bootstrap method. Any of the specified fields must already
* exist for the instrumented type.
*
* @param fieldName The names of the fields to be passed to the bootstrapped method.
* @return This invoke dynamic implementation where the bootstrapped method is passed the specified arguments.
*/
public InvokeDynamic withField(String... fieldName) {
List argumentProviders = new ArrayList(fieldName.length);
for (String aFieldName : fieldName) {
argumentProviders.add(new InvocationProvider.ArgumentProvider.ForExistingField(aFieldName));
}
return new InvokeDynamic(bootstrapMethod,
handleArguments,
invocationProvider.appendArguments(argumentProviders),
terminationHandler,
assigner,
typing);
}
/**
* Instructs this implementation to use the provided assigner and decides if the assigner should apply
* dynamic typing.
*
* @param assigner The assigner to use.
* @param typing {@code true} if the assigner should attempt dynamic typing.
* @return The invoke dynamic instruction where the given assigner and dynamic-typing directive are applied.
*/
public InvokeDynamic withAssigner(Assigner assigner, Assigner.Typing typing) {
return new InvokeDynamic(bootstrapMethod,
handleArguments,
invocationProvider,
terminationHandler,
assigner,
typing);
}
@Override
public Implementation andThen(Implementation implementation) {
return new Implementation.Compound(new InvokeDynamic(bootstrapMethod,
handleArguments,
invocationProvider,
TerminationHandler.ForChainedInvocation.INSTANCE,
assigner,
typing),
implementation);
}
@Override
public InstrumentedType prepare(InstrumentedType instrumentedType) {
return invocationProvider.prepare(instrumentedType);
}
@Override
public ByteCodeAppender appender(Target implementationTarget) {
return new Appender(implementationTarget.getInstrumentedType());
}
/**
* Returns the invocation provider to be used for equals and hash code calculations.
*
* @return The invocation provider that represents this instance.
*/
protected InvocationProvider getInvocationProvider() {
return invocationProvider;
}
@Override
public boolean equals(Object other) {
if (this == other) return true;
if (!(other instanceof InvokeDynamic)) return false;
InvokeDynamic that = (InvokeDynamic) other;
return typing == that.typing
&& assigner.equals(that.assigner)
&& bootstrapMethod.equals(that.bootstrapMethod)
&& handleArguments.equals(that.handleArguments)
&& invocationProvider.equals(that.getInvocationProvider())
&& terminationHandler.equals(that.terminationHandler);
}
@Override
public int hashCode() {
int result = bootstrapMethod.hashCode();
result = 31 * result + handleArguments.hashCode();
result = 31 * result + getInvocationProvider().hashCode();
result = 31 * result + terminationHandler.hashCode();
result = 31 * result + assigner.hashCode();
result = 31 * result + typing.hashCode();
return result;
}
@Override
public String toString() {
return "InvokeDynamic{" +
"bootstrapMethod=" + bootstrapMethod +
", handleArguments=" + handleArguments +
", invocationProvider=" + invocationProvider +
", terminationHandler=" + terminationHandler +
", assigner=" + assigner +
", typing=" + typing +
'}';
}
/**
* An invocation provider is responsible for loading the arguments of the invoked method onto the operand
* stack and for creating the actual invoke dynamic instruction.
*/
protected interface InvocationProvider {
/**
* Creates a target for the invocation.
*
* @param methodDescription The method that is being intercepted.
* @return The target for the invocation.
*/
Target make(MethodDescription methodDescription);
/**
* Appends the given arguments to the invocation to be loaded onto the operand stack.
*
* @param argumentProviders The next arguments to be loaded onto the operand stack.
* @return An invocation provider for this target that loads the given arguments onto the operand stack.
*/
InvocationProvider appendArguments(List argumentProviders);
/**
* Appends the given argument to the invocation to be loaded onto the operand stack.
*
* @param argumentProvider The next argument to be loaded onto the operand stack.
* @return An invocation provider for this target that loads the given arguments onto the operand stack.
*/
InvocationProvider appendArgument(ArgumentProvider argumentProvider);
/**
* Returns a copy of this invocation provider that does not add any arguments.
*
* @return A copy of this invocation provider that does not add any arguments.
*/
InvocationProvider withoutArguments();
/**
* Returns a copy of this invocation provider that applies the given name provider.
*
* @param nameProvider The name provider to be used.
* @return A copy of this invocation provider that applies the given name provider.
*/
InvocationProvider withNameProvider(NameProvider nameProvider);
/**
* Returns a copy of this invocation provider that applies the given return type provider.
*
* @param returnTypeProvider The return type provider to be used.
* @return A copy of this invocation provider that applies the given return type provider.
*/
InvocationProvider withReturnTypeProvider(ReturnTypeProvider returnTypeProvider);
/**
* Prepares the instrumented type.
*
* @param instrumentedType The instrumented type to prepare.
* @return The prepared instrumented type.
*/
InstrumentedType prepare(InstrumentedType instrumentedType);
/**
* A target for a dynamic method invocation.
*/
interface Target {
/**
* Resolves the target.
*
* @param instrumentedType The instrumented type.
* @param assigner The assigner to be used.
* @param typing Indicates if dynamic type castings should be attempted for incompatible assignments.
* @return The resolved target.
*/
Resolved resolve(TypeDescription instrumentedType, Assigner assigner, Assigner.Typing typing);
/**
* Represents a resolved {@link org.testifyproject.bytebuddy.implementation.InvokeDynamic.InvocationProvider.Target}.
*/
interface Resolved {
/**
* Returns the stack manipulation that loads the arguments onto the operand stack.
*
* @return The stack manipulation that loads the arguments onto the operand stack.
*/
StackManipulation getStackManipulation();
/**
* Returns the requested return type.
*
* @return The requested return type.
*/
TypeDescription getReturnType();
/**
* Returns the internal name of the requested method.
*
* @return The internal name of the requested method.
*/
String getInternalName();
/**
* Returns the types of the values on the operand stack.
*
* @return The types of the values on the operand stack.
*/
List getParameterTypes();
/**
* A simple implementation of
* {@link org.testifyproject.bytebuddy.implementation.InvokeDynamic.InvocationProvider.Target.Resolved}.
*/
class Simple implements Resolved {
/**
* The stack manipulation that loads the arguments onto the operand stack.
*/
private final StackManipulation stackManipulation;
/**
* The internal name of the requested method.
*/
private final String internalName;
/**
* The requested return type.
*/
private final TypeDescription returnType;
/**
* The types of the values on the operand stack.
*/
private final List parameterTypes;
/**
* Creates a new simple instance.
*
* @param stackManipulation The stack manipulation that loads the arguments onto the operand stack.
* @param internalName The internal name of the requested method.
* @param returnType The requested return type.
* @param parameterTypes The types of the values on the operand stack.
*/
public Simple(StackManipulation stackManipulation,
String internalName,
TypeDescription returnType,
List parameterTypes) {
this.stackManipulation = stackManipulation;
this.internalName = internalName;
this.returnType = returnType;
this.parameterTypes = parameterTypes;
}
@Override
public StackManipulation getStackManipulation() {
return stackManipulation;
}
@Override
public TypeDescription getReturnType() {
return returnType;
}
@Override
public String getInternalName() {
return internalName;
}
@Override
public List getParameterTypes() {
return parameterTypes;
}
@Override
public boolean equals(Object other) {
if (this == other) return true;
if (other == null || getClass() != other.getClass()) return false;
Simple simple = (Simple) other;
return internalName.equals(simple.internalName)
&& parameterTypes.equals(simple.parameterTypes)
&& returnType.equals(simple.returnType)
&& stackManipulation.equals(simple.stackManipulation);
}
@Override
public int hashCode() {
int result = stackManipulation.hashCode();
result = 31 * result + internalName.hashCode();
result = 31 * result + returnType.hashCode();
result = 31 * result + parameterTypes.hashCode();
return result;
}
@Override
public String toString() {
return "InvokeDynamic.InvocationProvider.Target.Resolved.Simple{" +
"stackManipulation=" + stackManipulation +
", internalName='" + internalName + '\'' +
", returnType=" + returnType +
", parameterTypes=" + parameterTypes +
'}';
}
}
}
/**
* A target that requests to dynamically invoke a method to substitute for a given method.
*/
class ForMethodDescription implements Target, Target.Resolved {
/**
* The method that is being substituted.
*/
private final MethodDescription.InDefinedShape methodDescription;
/**
* Creates a new target for substituting a given method.
*
* @param methodDescription The method that is being substituted.
*/
protected ForMethodDescription(MethodDescription.InDefinedShape methodDescription) {
this.methodDescription = methodDescription;
}
@Override
public Resolved resolve(TypeDescription instrumentedType, Assigner assigner, Assigner.Typing typing) {
return this;
}
@Override
public String getInternalName() {
return methodDescription.getInternalName();
}
@Override
public TypeDescription getReturnType() {
return methodDescription.getReturnType().asErasure();
}
@Override
public StackManipulation getStackManipulation() {
return MethodVariableAccess.allArgumentsOf(methodDescription).prependThisReference();
}
@Override
public List getParameterTypes() {
return methodDescription.isStatic()
? methodDescription.getParameters().asTypeList().asErasures()
: CompoundList.of(methodDescription.getDeclaringType().asErasure(), methodDescription.getParameters().asTypeList().asErasures());
}
@Override
public boolean equals(Object other) {
return this == other || !(other == null || getClass() != other.getClass())
&& methodDescription.equals(((ForMethodDescription) other).methodDescription);
}
@Override
public int hashCode() {
return methodDescription.hashCode();
}
@Override
public String toString() {
return "InvokeDynamic.InvocationProvider.Target.ForMethodDescription{" +
"methodDescription=" + methodDescription +
'}';
}
}
}
/**
* An argument provider is responsible for loading arguments to a bootstrapped method onto the operand
* stack and providing the types of these arguments.
*/
interface ArgumentProvider {
/**
* Resolves an argument provider.
*
* @param instrumentedType The instrumented type.
* @param instrumentedMethod The instrumented method.
* @param assigner The assigner to be used.
* @param typing Indicates if dynamic type castings should be attempted for incompatible assignments.
* @return A resolved version of this argument provider.
*/
Resolved resolve(TypeDescription instrumentedType,
MethodDescription instrumentedMethod,
Assigner assigner,
Assigner.Typing typing);
/**
* Prepares the instrumented type.
*
* @param instrumentedType The instrumented type.
* @return The prepared instrumented type.
*/
InstrumentedType prepare(InstrumentedType instrumentedType);
/**
* An argument provider that loads a reference to the intercepted instance and all arguments of
* the intercepted method.
*/
enum ForInterceptedMethodInstanceAndParameters implements ArgumentProvider {
/**
* The singleton instance.
*/
INSTANCE;
@Override
public Resolved resolve(TypeDescription instrumentedType, MethodDescription instrumentedMethod, Assigner assigner, Assigner.Typing typing) {
return new Resolved.Simple(MethodVariableAccess.allArgumentsOf(instrumentedMethod).prependThisReference(),
instrumentedMethod.isStatic()
? instrumentedMethod.getParameters().asTypeList().asErasures()
: CompoundList.of(instrumentedMethod.getDeclaringType().asErasure(), instrumentedMethod.getParameters().asTypeList().asErasures()));
}
@Override
public InstrumentedType prepare(InstrumentedType instrumentedType) {
return instrumentedType;
}
@Override
public String toString() {
return "InvokeDynamic.InvocationProvider.ArgumentProvider.ForInterceptedMethodInstanceAndParameters." + name();
}
}
/**
* An argument provider that loads all arguments of the intercepted method.
*/
enum ForInterceptedMethodParameters implements ArgumentProvider {
/**
* The singleton instance.
*/
INSTANCE;
@Override
public Resolved resolve(TypeDescription instrumentedType, MethodDescription instrumentedMethod, Assigner assigner, Assigner.Typing typing) {
return new Resolved.Simple(MethodVariableAccess.allArgumentsOf(instrumentedMethod),
instrumentedMethod.getParameters().asTypeList().asErasures());
}
@Override
public InstrumentedType prepare(InstrumentedType instrumentedType) {
return instrumentedType;
}
@Override
public String toString() {
return "InvokeDynamic.InvocationProvider.ArgumentProvider.ForInterceptedMethodParameters." + name();
}
}
/**
* Represents wrapper types and types that could be stored in a class's constant pool as such
* constant pool values.
*/
enum ConstantPoolWrapper {
/**
* Stores a {@link java.lang.Boolean} as a {@code boolean} and wraps it on load.
*/
BOOLEAN(boolean.class, Boolean.class) {
@Override
protected ArgumentProvider make(Object value) {
return new WrappingArgumentProvider(IntegerConstant.forValue((Boolean) value));
}
},
/**
* Stores a {@link java.lang.Byte} as a {@code byte} and wraps it on load.
*/
BYTE(byte.class, Byte.class) {
@Override
protected ArgumentProvider make(Object value) {
return new WrappingArgumentProvider(IntegerConstant.forValue((Byte) value));
}
},
/**
* Stores a {@link java.lang.Short} as a {@code short} and wraps it on load.
*/
SHORT(short.class, Short.class) {
@Override
protected ArgumentProvider make(Object value) {
return new WrappingArgumentProvider(IntegerConstant.forValue((Short) value));
}
},
/**
* Stores a {@link java.lang.Character} as a {@code char} and wraps it on load.
*/
CHARACTER(char.class, Character.class) {
@Override
protected ArgumentProvider make(Object value) {
return new WrappingArgumentProvider(IntegerConstant.forValue((Character) value));
}
},
/**
* Stores a {@link java.lang.Integer} as a {@code int} and wraps it on load.
*/
INTEGER(int.class, Integer.class) {
@Override
protected ArgumentProvider make(Object value) {
return new WrappingArgumentProvider(IntegerConstant.forValue((Integer) value));
}
},
/**
* Stores a {@link java.lang.Long} as a {@code long} and wraps it on load.
*/
LONG(long.class, Long.class) {
@Override
protected ArgumentProvider make(Object value) {
return new WrappingArgumentProvider(LongConstant.forValue((Long) value));
}
},
/**
* Stores a {@link java.lang.Float} as a {@code float} and wraps it on load.
*/
FLOAT(float.class, Float.class) {
@Override
protected ArgumentProvider make(Object value) {
return new WrappingArgumentProvider(FloatConstant.forValue((Float) value));
}
},
/**
* Stores a {@link java.lang.Double} as a {@code double} and wraps it on load.
*/
DOUBLE(double.class, Double.class) {
@Override
protected ArgumentProvider make(Object value) {
return new WrappingArgumentProvider(DoubleConstant.forValue((Double) value));
}
};
/**
* The primitive type that can be stored on the constant pool.
*/
private final TypeDescription primitiveType;
/**
* The wrapper type that is to be represented.
*/
private final TypeDescription wrapperType;
/**
* Creates a new wrapper delegate for a primitive type.
*
* @param primitiveType The primitive type that can be stored on the constant pool.
* @param wrapperType The wrapper type that is to be represented.
*/
ConstantPoolWrapper(Class primitiveType, Class wrapperType) {
this.primitiveType = new TypeDescription.ForLoadedType(primitiveType);
this.wrapperType = new TypeDescription.ForLoadedType(wrapperType);
}
/**
* Represents the given value by a constant pool value or as a field if this is not possible.
*
* @param value The value to provide to the bootstrapped method.
* @return An argument provider for this value.
*/
public static ArgumentProvider of(Object value) {
if (value instanceof Boolean) {
return BOOLEAN.make(value);
} else if (value instanceof Byte) {
return BYTE.make(value);
} else if (value instanceof Short) {
return SHORT.make(value);
} else if (value instanceof Character) {
return CHARACTER.make(value);
} else if (value instanceof Integer) {
return INTEGER.make(value);
} else if (value instanceof Long) {
return LONG.make(value);
} else if (value instanceof Float) {
return FLOAT.make(value);
} else if (value instanceof Double) {
return DOUBLE.make(value);
} else if (value instanceof String) {
return new ForStringConstant((String) value);
} else if (value instanceof Class) {
return new ForClassConstant(new TypeDescription.ForLoadedType((Class) value));
} else if (value instanceof Enum) {
return new ForEnumerationValue(new EnumerationDescription.ForLoadedEnumeration((Enum) value));
} else if (JavaType.METHOD_HANDLE.getTypeStub().isInstance(value)) {
return new ForJavaInstance(JavaInstance.MethodHandle.ofLoaded(value));
} else if (JavaType.METHOD_TYPE.getTypeStub().isInstance(value)) {
return new ForJavaInstance(JavaInstance.MethodType.ofLoaded(value));
} else {
return ForStaticField.of(value);
}
}
/**
* Creates an argument provider for a given primitive value.
*
* @param value The wrapper-type value to provide to the bootstrapped method.
* @return An argument provider for this value.
*/
protected abstract ArgumentProvider make(Object value);
@Override
public String toString() {
return "InvokeDynamic.InvocationProvider.ArgumentProvider.ConstantPoolWrapper." + name();
}
/**
* An argument provider that loads a primitive value from the constant pool and wraps it.
*/
protected class WrappingArgumentProvider implements ArgumentProvider {
/**
* The stack manipulation that represents the loading of the primitive value.
*/
private final StackManipulation stackManipulation;
/**
* Creates a new wrapping argument provider.
*
* @param stackManipulation The stack manipulation that represents the loading of the
* primitive value.
*/
protected WrappingArgumentProvider(StackManipulation stackManipulation) {
this.stackManipulation = stackManipulation;
}
@Override
public Resolved resolve(TypeDescription instrumentedType, MethodDescription instrumentedMethod, Assigner assigner, Assigner.Typing typing) {
return new Resolved.Simple(new StackManipulation.Compound(stackManipulation,
assigner.assign(primitiveType.asGenericType(), wrapperType.asGenericType(), typing)), wrapperType);
}
@Override
public InstrumentedType prepare(InstrumentedType instrumentedType) {
return instrumentedType;
}
@Override
public boolean equals(Object other) {
return this == other || !(other == null || getClass() != other.getClass())
&& ConstantPoolWrapper.this.equals(((WrappingArgumentProvider) other).getOuter())
&& stackManipulation.equals(((WrappingArgumentProvider) other).stackManipulation);
}
/**
* Returns the outer instance.
*
* @return The outer instance.
*/
private ConstantPoolWrapper getOuter() {
return ConstantPoolWrapper.this;
}
@Override
public int hashCode() {
return stackManipulation.hashCode() + 31 * ConstantPoolWrapper.this.hashCode();
}
@Override
public String toString() {
return "InvokeDynamic.InvocationProvider.ArgumentProvider.ConstantPoolWrapper.WrappingArgumentProvider{" +
"constantPoolWrapper=" + ConstantPoolWrapper.this +
", stackManipulation=" + stackManipulation +
'}';
}
}
}
/**
* A resolved {@link org.testifyproject.bytebuddy.implementation.InvokeDynamic.InvocationProvider.ArgumentProvider}.
*/
interface Resolved {
/**
* Returns a stack manipulation that loads the arguments onto the operand stack.
*
* @return A stack manipulation that loads the arguments onto the operand stack.
*/
StackManipulation getLoadInstruction();
/**
* Returns a list of all types of the arguments that were loaded onto the operand stack.
*
* @return A list of all types of the arguments that were loaded onto the operand stack.
*/
List getLoadedTypes();
/**
* A simple implementation of a resolved argument provider.
*/
class Simple implements Resolved {
/**
* A stack manipulation that loads the arguments onto the operand stack.
*/
private final StackManipulation stackManipulation;
/**
* A list of all types of the arguments that were loaded onto the operand stack.
*/
private final List loadedTypes;
/**
* Creates a simple resolved argument provider.
*
* @param stackManipulation A stack manipulation that loads the argument onto the operand stack.
* @param loadedType The type of the arguments that is loaded onto the operand stack.
*/
public Simple(StackManipulation stackManipulation, TypeDescription loadedType) {
this(stackManipulation, Collections.singletonList(loadedType));
}
/**
* Creates a simple resolved argument provider.
*
* @param stackManipulation A stack manipulation that loads the arguments onto the operand stack.
* @param loadedTypes A list of all types of the arguments that were loaded onto the
* operand stack.
*/
public Simple(StackManipulation stackManipulation, List loadedTypes) {
this.stackManipulation = stackManipulation;
this.loadedTypes = loadedTypes;
}
@Override
public StackManipulation getLoadInstruction() {
return stackManipulation;
}
@Override
public List getLoadedTypes() {
return loadedTypes;
}
@Override
public boolean equals(Object other) {
if (this == other) return true;
if (other == null || getClass() != other.getClass()) return false;
Simple simple = (Simple) other;
return loadedTypes.equals(simple.loadedTypes)
&& stackManipulation.equals(simple.stackManipulation);
}
@Override
public int hashCode() {
int result = stackManipulation.hashCode();
result = 31 * result + loadedTypes.hashCode();
return result;
}
@Override
public String toString() {
return "InvokeDynamic.InvocationProvider.ArgumentProvider.Resolved.Simple{" +
"stackManipulation=" + stackManipulation +
", loadedTypes=" + loadedTypes +
'}';
}
}
}
/**
* An argument provider that loads the intercepted instance.
*/
class ForThisInstance implements ArgumentProvider {
/**
* The type as which the intercepted instance should be loaded onto the operand stack.
*/
private final TypeDescription typeDescription;
/**
* Creates a new argument provider for the instance of the instrumented type.
*
* @param typeDescription The type as which the instrumented type should be loaded onto the operand stack.
*/
public ForThisInstance(TypeDescription typeDescription) {
this.typeDescription = typeDescription;
}
@Override
public Resolved resolve(TypeDescription instrumentedType, MethodDescription instrumentedMethod, Assigner assigner, Assigner.Typing typing) {
if (instrumentedMethod.isStatic()) {
throw new IllegalStateException("Cannot get this instance from static method: " + instrumentedMethod);
} else if (!instrumentedType.isAssignableTo(typeDescription)) {
throw new IllegalStateException(instrumentedType + " is not assignable to " + instrumentedType);
}
return new Resolved.Simple(MethodVariableAccess.REFERENCE.loadOffset(0), typeDescription);
}
@Override
public InstrumentedType prepare(InstrumentedType instrumentedType) {
return instrumentedType;
}
@Override
public boolean equals(Object other) {
return this == other || !(other == null || getClass() != other.getClass())
&& typeDescription.equals(((ForThisInstance) other).typeDescription);
}
@Override
public int hashCode() {
return typeDescription.hashCode();
}
@Override
public String toString() {
return "InvokeDynamic.InvocationProvider.ArgumentProvider.ForThisInstance{" +
"typeDescription=" + typeDescription +
'}';
}
}
/**
* An argument provider for a value that is stored in a randomly named static field.
*/
class ForStaticField implements ArgumentProvider {
/**
* The prefix of any field generated by this argument provider.
*/
private static final String FIELD_PREFIX = "invokeDynamic";
/**
* The value that is stored in the static field.
*/
private final Object value;
/**
* The type of the static field.
*/
private final TypeDescription.Generic fieldType;
/**
* The name of the field.
*/
private final String name;
/**
* Creates a new argument provider that stores the given value in a static field.
*
* @param value The value that is to be provided to the bootstrapped method.
* @param fieldType The type of the field which is also provided to the bootstrap method.
*/
public ForStaticField(Object value, TypeDescription.Generic fieldType) {
this.value = value;
this.fieldType = fieldType;
name = String.format("%s$%s", FIELD_PREFIX, RandomString.make());
}
/**
* Creates a new argument provider that stores the given value in a static field of the instance type.
*
* @param value The value that is to be provided to the bootstrapped method.
* @return A corresponding argument provider.
*/
public static ArgumentProvider of(Object value) {
return new ForStaticField(value, new TypeDescription.Generic.OfNonGenericType.ForLoadedType(value.getClass()));
}
@Override
public Resolved resolve(TypeDescription instrumentedType, MethodDescription instrumentedMethod, Assigner assigner, Assigner.Typing typing) {
FieldDescription fieldDescription = instrumentedType.getDeclaredFields().filter(named(name)).getOnly();
StackManipulation stackManipulation = assigner.assign(fieldDescription.getType(), fieldType, typing);
if (!stackManipulation.isValid()) {
throw new IllegalStateException("Cannot assign " + fieldDescription + " to " + fieldType);
}
return new Resolved.Simple(new StackManipulation.Compound(FieldAccess.forField(fieldDescription).getter(),
stackManipulation), fieldDescription.getType().asErasure());
}
@Override
public InstrumentedType prepare(InstrumentedType instrumentedType) {
return instrumentedType
.withField(new FieldDescription.Token(name, Opcodes.ACC_SYNTHETIC | Opcodes.ACC_PUBLIC | Opcodes.ACC_STATIC, fieldType))
.withInitializer(new LoadedTypeInitializer.ForStaticField(name, value));
}
@Override
public boolean equals(Object other) {
return this == other || !(other == null || getClass() != other.getClass())
&& fieldType.equals(((ForStaticField) other).fieldType)
&& value.equals(((ForStaticField) other).value);
}
@Override
public int hashCode() {
return 31 * value.hashCode() + fieldType.hashCode();
}
@Override
public String toString() {
return "InvokeDynamic.InvocationProvider.ArgumentProvider.ForStaticField{" +
"value=" + value +
", fieldType=" + fieldType +
", name='" + name + '\'' +
'}';
}
}
/**
* An argument provider that loads a value from an instance field.
*/
class ForInstanceField implements ArgumentProvider {
/**
* The name of the field.
*/
private final String fieldName;
/**
* The type of the field.
*/
private final TypeDescription.Generic fieldType;
/**
* Creates a new argument provider that provides a value from an instance field.
*
* @param fieldName The name of the field.
* @param fieldType The type of the field.
*/
public ForInstanceField(String fieldName, TypeDescription.Generic fieldType) {
this.fieldName = fieldName;
this.fieldType = fieldType;
}
@Override
public Resolved resolve(TypeDescription instrumentedType, MethodDescription instrumentedMethod, Assigner assigner, Assigner.Typing typing) {
if (instrumentedMethod.isStatic()) {
throw new IllegalStateException("Cannot access " + fieldName + " from " + instrumentedMethod);
}
return new Resolved.Simple(new StackManipulation.Compound(MethodVariableAccess.REFERENCE.loadOffset(0),
FieldAccess.forField(instrumentedType.getDeclaredFields().filter(named(fieldName)).getOnly()).getter()), fieldType.asErasure());
}
@Override
public InstrumentedType prepare(InstrumentedType instrumentedType) {
return instrumentedType.withField(new FieldDescription.Token(fieldName, Opcodes.ACC_SYNTHETIC | Opcodes.ACC_PUBLIC, fieldType));
}
@Override
public boolean equals(Object other) {
if (this == other) return true;
if (other == null || getClass() != other.getClass()) return false;
ForInstanceField that = (ForInstanceField) other;
return fieldName.equals(that.fieldName) && fieldType.equals(that.fieldType);
}
@Override
public int hashCode() {
int result = fieldName.hashCode();
result = 31 * result + fieldType.hashCode();
return result;
}
@Override
public String toString() {
return "InvokeDynamic.InvocationProvider.ArgumentProvider.ForInstanceField{" +
"fieldName='" + fieldName + '\'' +
", fieldType=" + fieldType +
'}';
}
}
/**
* Provides an argument from an existing field.
*/
class ForExistingField implements ArgumentProvider {
/**
* The name of the field.
*/
private final String fieldName;
/**
* Creates a new argument provider that loads the value of an existing field.
*
* @param fieldName The name of the field.
*/
public ForExistingField(String fieldName) {
this.fieldName = fieldName;
}
@Override
public Resolved resolve(TypeDescription instrumentedType, MethodDescription instrumentedMethod, Assigner assigner, Assigner.Typing typing) {
FieldDescription fieldDescription = locate(instrumentedType);
if (!fieldDescription.isStatic() && instrumentedMethod.isStatic()) {
throw new IllegalStateException("Cannot access non-static " + fieldDescription + " from " + instrumentedMethod);
}
return new Resolved.Simple(new StackManipulation.Compound(
fieldDescription.isStatic()
? StackManipulation.Trivial.INSTANCE
: MethodVariableAccess.REFERENCE.loadOffset(0),
FieldAccess.forField(fieldDescription).getter()
), fieldDescription.getType().asErasure());
}
/**
* Locates the specified field on the instrumented type.
*
* @param instrumentedType The instrumented type.
* @return The located field.
*/
private FieldDescription locate(TypeDescription instrumentedType) {
for (TypeDefinition currentType : instrumentedType) {
FieldList fieldList = currentType.getDeclaredFields().filter(named(fieldName).and(isVisibleTo(instrumentedType)));
if (fieldList.size() != 0) {
return fieldList.getOnly();
}
}
throw new IllegalStateException(instrumentedType + " does not define a visible field " + fieldName);
}
@Override
public InstrumentedType prepare(InstrumentedType instrumentedType) {
return instrumentedType;
}
@Override
public boolean equals(Object other) {
return this == other || !(other == null || getClass() != other.getClass())
&& fieldName.equals(((ForExistingField) other).fieldName);
}
@Override
public int hashCode() {
return fieldName.hashCode();
}
@Override
public String toString() {
return "InvokeDynamic.InvocationProvider.ArgumentProvider.ForExistingField{" +
"fieldName='" + fieldName + '\'' +
'}';
}
}
/**
* An argument provider that loads an argument of the intercepted method.
*/
class ForMethodParameter implements ArgumentProvider {
/**
* The index of the parameter.
*/
private final int index;
/**
* Creates an argument provider for an argument of the intercepted method.
*
* @param index The index of the parameter.
*/
public ForMethodParameter(int index) {
this.index = index;
}
@Override
public Resolved resolve(TypeDescription instrumentedType, MethodDescription instrumentedMethod, Assigner assigner, Assigner.Typing typing) {
ParameterList parameters = instrumentedMethod.getParameters();
if (index >= parameters.size()) {
throw new IllegalStateException("No parameter " + index + " for " + instrumentedMethod);
}
return new Resolved.Simple(MethodVariableAccess.of(parameters.get(index).getType().asErasure())
.loadOffset(instrumentedMethod.getParameters().get(index).getOffset()), parameters.get(index).getType().asErasure());
}
@Override
public InstrumentedType prepare(InstrumentedType instrumentedType) {
return instrumentedType;
}
@Override
public boolean equals(Object other) {
return this == other || !(other == null || getClass() != other.getClass())
&& index == ((ForMethodParameter) other).index;
}
@Override
public int hashCode() {
return index;
}
@Override
public String toString() {
return "InvokeDynamic.InvocationProvider.ArgumentProvider.ForMethodParameter{" +
"index=" + index +
'}';
}
}
/**
* An argument provider that loads an argument of the intercepted method.
*/
class ForExplicitTypedMethodParameter implements ArgumentProvider {
/**
* The index of the parameter.
*/
private final int index;
/**
* The type of this method parameter.
*/
private final TypeDescription typeDescription;
/**
* Creates an argument provider for an argument of the intercepted method.
*
* @param index The index of the parameter.
* @param typeDescription The type of this method parameter.
*/
public ForExplicitTypedMethodParameter(int index, TypeDescription typeDescription) {
this.index = index;
this.typeDescription = typeDescription;
}
@Override
public Resolved resolve(TypeDescription instrumentedType, MethodDescription instrumentedMethod, Assigner assigner, Assigner.Typing typing) {
ParameterList parameters = instrumentedMethod.getParameters();
if (index >= parameters.size()) {
throw new IllegalStateException("No parameter " + index + " for " + instrumentedMethod);
}
StackManipulation stackManipulation = assigner.assign(parameters.get(index).getType(), typeDescription.asGenericType(), typing);
if (!stackManipulation.isValid()) {
throw new IllegalArgumentException("Cannot assign " + parameters.get(index) + " to " + typeDescription);
}
return new Resolved.Simple(new StackManipulation.Compound(MethodVariableAccess.of(parameters.get(index)
.getType().asErasure()).loadOffset(parameters.get(index).getOffset()), stackManipulation), typeDescription);
}
@Override
public InstrumentedType prepare(InstrumentedType instrumentedType) {
return instrumentedType;
}
@Override
public boolean equals(Object other) {
return this == other || !(other == null || getClass() != other.getClass())
&& index == ((ForExplicitTypedMethodParameter) other).index
&& typeDescription.equals(((ForExplicitTypedMethodParameter) other).typeDescription);
}
@Override
public int hashCode() {
return index + 31 * typeDescription.hashCode();
}
@Override
public String toString() {
return "InvokeDynamic.InvocationProvider.ArgumentProvider.ForExplicitTypedMethodParameter{" +
"index=" + index +
", typeDescription=" + typeDescription +
'}';
}
}
/**
* An argument provider for a {@code boolean} value.
*/
class ForBooleanConstant implements ArgumentProvider {
/**
* The represented {@code boolean} value.
*/
private final boolean value;
/**
* Creates a new argument provider for a {@code boolean} value.
*
* @param value The represented {@code boolean} value.
*/
public ForBooleanConstant(boolean value) {
this.value = value;
}
@Override
public Resolved resolve(TypeDescription instrumentedType, MethodDescription instrumentedMethod, Assigner assigner, Assigner.Typing typing) {
return new Resolved.Simple(IntegerConstant.forValue(value), new TypeDescription.ForLoadedType(boolean.class));
}
@Override
public InstrumentedType prepare(InstrumentedType instrumentedType) {
return instrumentedType;
}
@Override
public boolean equals(Object other) {
return this == other || !(other == null || getClass() != other.getClass())
&& value == ((ForBooleanConstant) other).value;
}
@Override
public int hashCode() {
return (value ? 1 : 0);
}
@Override
public String toString() {
return "InvokeDynamic.InvocationProvider.ArgumentProvider.ForBooleanConstant{" +
"value=" + value +
'}';
}
}
/**
* An argument provider for a {@code byte} value.
*/
class ForByteConstant implements ArgumentProvider {
/**
* The represented {@code byte} value.
*/
private final byte value;
/**
* Creates a new argument provider for a {@code byte} value.
*
* @param value The represented {@code byte} value.
*/
public ForByteConstant(byte value) {
this.value = value;
}
@Override
public Resolved resolve(TypeDescription instrumentedType, MethodDescription instrumentedMethod, Assigner assigner, Assigner.Typing typing) {
return new Resolved.Simple(IntegerConstant.forValue(value), new TypeDescription.ForLoadedType(byte.class));
}
@Override
public InstrumentedType prepare(InstrumentedType instrumentedType) {
return instrumentedType;
}
@Override
public boolean equals(Object other) {
return this == other || !(other == null || getClass() != other.getClass())
&& value == ((ForByteConstant) other).value;
}
@Override
public int hashCode() {
return (int) value;
}
@Override
public String toString() {
return "InvokeDynamic.InvocationProvider.ArgumentProvider.ForByteConstant{" +
"value=" + value +
'}';
}
}
/**
* An argument provider for a {@code short} value.
*/
class ForShortConstant implements ArgumentProvider {
/**
* The represented {@code short} value.
*/
private final short value;
/**
* Creates a new argument provider for a {@code short} value.
*
* @param value The represented {@code short} value.
*/
public ForShortConstant(short value) {
this.value = value;
}
@Override
public Resolved resolve(TypeDescription instrumentedType, MethodDescription instrumentedMethod, Assigner assigner, Assigner.Typing typing) {
return new Resolved.Simple(IntegerConstant.forValue(value), new TypeDescription.ForLoadedType(short.class));
}
@Override
public InstrumentedType prepare(InstrumentedType instrumentedType) {
return instrumentedType;
}
@Override
public boolean equals(Object other) {
return this == other || !(other == null || getClass() != other.getClass())
&& value == ((ForShortConstant) other).value;
}
@Override
public int hashCode() {
return (int) value;
}
@Override
public String toString() {
return "InvokeDynamic.InvocationProvider.ArgumentProvider.ForShortConstant{" +
"value=" + value +
'}';
}
}
/**
* An argument provider for a {@code char} value.
*/
class ForCharacterConstant implements ArgumentProvider {
/**
* The represented {@code char} value.
*/
private final char value;
/**
* Creates a new argument provider for a {@code char} value.
*
* @param value The represented {@code char} value.
*/
public ForCharacterConstant(char value) {
this.value = value;
}
@Override
public Resolved resolve(TypeDescription instrumentedType, MethodDescription instrumentedMethod, Assigner assigner, Assigner.Typing typing) {
return new Resolved.Simple(IntegerConstant.forValue(value), new TypeDescription.ForLoadedType(char.class));
}
@Override
public InstrumentedType prepare(InstrumentedType instrumentedType) {
return instrumentedType;
}
@Override
public boolean equals(Object other) {
return this == other || !(other == null || getClass() != other.getClass())
&& value == ((ForCharacterConstant) other).value;
}
@Override
public int hashCode() {
return (int) value;
}
@Override
public String toString() {
return "InvokeDynamic.InvocationProvider.ArgumentProvider.ForCharacterConstant{" +
"value=" + value +
'}';
}
}
/**
* An argument provider for a {@code int} value.
*/
class ForIntegerConstant implements ArgumentProvider {
/**
* The represented {@code int} value.
*/
private final int value;
/**
* Creates a new argument provider for a {@code int} value.
*
* @param value The represented {@code int} value.
*/
public ForIntegerConstant(int value) {
this.value = value;
}
@Override
public Resolved resolve(TypeDescription instrumentedType, MethodDescription instrumentedMethod, Assigner assigner, Assigner.Typing typing) {
return new Resolved.Simple(IntegerConstant.forValue(value), new TypeDescription.ForLoadedType(int.class));
}
@Override
public InstrumentedType prepare(InstrumentedType instrumentedType) {
return instrumentedType;
}
@Override
public boolean equals(Object other) {
return this == other || !(other == null || getClass() != other.getClass())
&& value == ((ForIntegerConstant) other).value;
}
@Override
public int hashCode() {
return value;
}
@Override
public String toString() {
return "InvokeDynamic.InvocationProvider.ArgumentProvider.ForIntegerConstant{" +
"value=" + value +
'}';
}
}
/**
* An argument provider for a {@code long} value.
*/
class ForLongConstant implements ArgumentProvider {
/**
* The represented {@code long} value.
*/
private final long value;
/**
* Creates a new argument provider for a {@code long} value.
*
* @param value The represented {@code long} value.
*/
public ForLongConstant(long value) {
this.value = value;
}
@Override
public Resolved resolve(TypeDescription instrumentedType, MethodDescription instrumentedMethod, Assigner assigner, Assigner.Typing typing) {
return new Resolved.Simple(LongConstant.forValue(value), new TypeDescription.ForLoadedType(long.class));
}
@Override
public InstrumentedType prepare(InstrumentedType instrumentedType) {
return instrumentedType;
}
@Override
public boolean equals(Object other) {
return this == other || !(other == null || getClass() != other.getClass())
&& value == ((ForLongConstant) other).value;
}
@Override
public int hashCode() {
return (int) (value ^ (value >>> 32));
}
@Override
public String toString() {
return "InvokeDynamic.InvocationProvider.ArgumentProvider.ForLongConstant{" +
"value=" + value +
'}';
}
}
/**
* An argument provider for a {@code float} value.
*/
class ForFloatConstant implements ArgumentProvider {
/**
* The represented {@code float} value.
*/
private final float value;
/**
* Creates a new argument provider for a {@code float} value.
*
* @param value The represented {@code float} value.
*/
public ForFloatConstant(float value) {
this.value = value;
}
@Override
public Resolved resolve(TypeDescription instrumentedType, MethodDescription instrumentedMethod, Assigner assigner, Assigner.Typing typing) {
return new Resolved.Simple(FloatConstant.forValue(value), new TypeDescription.ForLoadedType(float.class));
}
@Override
public InstrumentedType prepare(InstrumentedType instrumentedType) {
return instrumentedType;
}
@Override
public boolean equals(Object other) {
return this == other || !(other == null || getClass() != other.getClass())
&& Float.compare(((ForFloatConstant) other).value, value) == 0;
}
@Override
public int hashCode() {
return (value != +0.0f ? Float.floatToIntBits(value) : 0);
}
@Override
public String toString() {
return "InvokeDynamic.InvocationProvider.ArgumentProvider.ForFloatConstant{" +
"value=" + value +
'}';
}
}
/**
* An argument provider for a {@code double} value.
*/
class ForDoubleConstant implements ArgumentProvider {
/**
* The represented {@code double} value.
*/
private final double value;
/**
* Creates a new argument provider for a {@code double} value.
*
* @param value The represented {@code double} value.
*/
public ForDoubleConstant(double value) {
this.value = value;
}
@Override
public Resolved resolve(TypeDescription instrumentedType, MethodDescription instrumentedMethod, Assigner assigner, Assigner.Typing typing) {
return new Resolved.Simple(DoubleConstant.forValue(value), new TypeDescription.ForLoadedType(double.class));
}
@Override
public InstrumentedType prepare(InstrumentedType instrumentedType) {
return instrumentedType;
}
@Override
public boolean equals(Object other) {
return this == other || !(other == null || getClass() != other.getClass())
&& Double.compare(((ForDoubleConstant) other).value, value) == 0;
}
@Override
public int hashCode() {
long temp = Double.doubleToLongBits(value);
return (int) (temp ^ (temp >>> 32));
}
@Override
public String toString() {
return "InvokeDynamic.InvocationProvider.ArgumentProvider.ForDoubleConstant{" +
"value=" + value +
'}';
}
}
/**
* An argument provider for a {@link java.lang.String} value.
*/
class ForStringConstant implements ArgumentProvider {
/**
* The represented {@link java.lang.String} value.
*/
private final String value;
/**
* Creates a new argument provider for a {@link java.lang.String} value.
*
* @param value The represented {@link java.lang.String} value.
*/
public ForStringConstant(String value) {
this.value = value;
}
@Override
public Resolved resolve(TypeDescription instrumentedType, MethodDescription instrumentedMethod, Assigner assigner, Assigner.Typing typing) {
return new Resolved.Simple(new TextConstant(value), TypeDescription.STRING);
}
@Override
public InstrumentedType prepare(InstrumentedType instrumentedType) {
return instrumentedType;
}
@Override
public boolean equals(Object other) {
return this == other || !(other == null || getClass() != other.getClass())
&& value.equals(((ForStringConstant) other).value);
}
@Override
public int hashCode() {
return value.hashCode();
}
@Override
public String toString() {
return "InvokeDynamic.InvocationProvider.ArgumentProvider.ForStringConstant{" +
"value='" + value + '\'' +
'}';
}
}
/**
* An argument provider for a {@link java.lang.Class} constant.
*/
class ForClassConstant implements ArgumentProvider {
/**
* The type that is represented by this constant.
*/
private final TypeDescription typeDescription;
/**
* Creates a new argument provider for the given type description.
*
* @param typeDescription The type to represent.
*/
public ForClassConstant(TypeDescription typeDescription) {
this.typeDescription = typeDescription;
}
@Override
public Resolved resolve(TypeDescription instrumentedType, MethodDescription instrumentedMethod, Assigner assigner, Assigner.Typing typing) {
return new Resolved.Simple(ClassConstant.of(typeDescription), TypeDescription.CLASS);
}
@Override
public InstrumentedType prepare(InstrumentedType instrumentedType) {
return instrumentedType;
}
@Override
public boolean equals(Object other) {
return this == other || !(other == null || getClass() != other.getClass())
&& typeDescription.equals(((ForClassConstant) other).typeDescription);
}
@Override
public int hashCode() {
return typeDescription.hashCode();
}
@Override
public String toString() {
return "InvokeDynamic.InvocationProvider.ArgumentProvider.ForClassConstant{" +
"typeDescription=" + typeDescription +
'}';
}
}
/**
* An argument provider for an {@link java.lang.Enum} constant.
*/
class ForEnumerationValue implements ArgumentProvider {
/**
* A description of the enumeration to represent.
*/
private final EnumerationDescription enumerationDescription;
/**
* Creates a new argument provider for an enumeration value.
*
* @param enumerationDescription A description of the enumeration to represent.
*/
public ForEnumerationValue(EnumerationDescription enumerationDescription) {
this.enumerationDescription = enumerationDescription;
}
@Override
public Resolved resolve(TypeDescription instrumentedType, MethodDescription instrumentedMethod, Assigner assigner, Assigner.Typing typing) {
return new Resolved.Simple(FieldAccess.forEnumeration(enumerationDescription), enumerationDescription.getEnumerationType());
}
@Override
public InstrumentedType prepare(InstrumentedType instrumentedType) {
return instrumentedType;
}
@Override
public boolean equals(Object other) {
return this == other || !(other == null || getClass() != other.getClass())
&& enumerationDescription.equals(((ForEnumerationValue) other).enumerationDescription);
}
@Override
public int hashCode() {
return enumerationDescription.hashCode();
}
@Override
public String toString() {
return "InvokeDynamic.InvocationProvider.ArgumentProvider.ForEnumerationValue{" +
"enumerationDescription=" + enumerationDescription +
'}';
}
}
/**
* An argument provider for the {@code null} value.
*/
class ForNullValue implements ArgumentProvider {
/**
* The type to be represented by the {@code null} value.
*/
private final TypeDescription typeDescription;
/**
* Creates a new argument provider for the {@code null} value.
*
* @param typeDescription The type to be represented by the {@code null} value.
*/
public ForNullValue(TypeDescription typeDescription) {
this.typeDescription = typeDescription;
}
@Override
public Resolved resolve(TypeDescription instrumentedType, MethodDescription instrumentedMethod, Assigner assigner, Assigner.Typing typing) {
return new Resolved.Simple(NullConstant.INSTANCE, typeDescription);
}
@Override
public InstrumentedType prepare(InstrumentedType instrumentedType) {
return instrumentedType;
}
@Override
public boolean equals(Object other) {
return this == other || !(other == null || getClass() != other.getClass())
&& typeDescription.equals(((ForNullValue) other).typeDescription);
}
@Override
public int hashCode() {
return typeDescription.hashCode();
}
@Override
public String toString() {
return "InvokeDynamic.InvocationProvider.ArgumentProvider.ForNullValue{" +
"typeDescription=" + typeDescription +
'}';
}
}
/**
* An argument provider for a Java instance.
*/
class ForJavaInstance implements ArgumentProvider {
/**
* The Java instance to provide to the bootstrapped method.
*/
private final JavaInstance javaInstance;
/**
* Creates a new argument provider for the given Java instance.
*
* @param javaInstance The Java instance to provide to the bootstrapped method.
*/
public ForJavaInstance(JavaInstance javaInstance) {
this.javaInstance = javaInstance;
}
@Override
public Resolved resolve(TypeDescription instrumentedType, MethodDescription instrumentedMethod, Assigner assigner, Assigner.Typing typing) {
return new Resolved.Simple(javaInstance.asStackManipulation(), javaInstance.getInstanceType());
}
@Override
public InstrumentedType prepare(InstrumentedType instrumentedType) {
return instrumentedType;
}
@Override
public boolean equals(Object other) {
return this == other || !(other == null || getClass() != other.getClass())
&& javaInstance.equals(((ForJavaInstance) other).javaInstance);
}
@Override
public int hashCode() {
return javaInstance.hashCode();
}
@Override
public String toString() {
return "InvokeDynamic.InvocationProvider.ArgumentProvider.ForJavaInstance{" +
"javaInstance=" + javaInstance +
'}';
}
}
}
/**
* Provides the name of the method that is to be bound by a dynamic method call.
*/
interface NameProvider {
/**
* Resolves the name given the intercepted method.
*
* @param methodDescription The intercepted method.
* @return The name of the method to be bound by the bootstrap method.
*/
String resolve(MethodDescription methodDescription);
/**
* A name provider that provides the name of the intercepted method.
*/
enum ForInterceptedMethod implements NameProvider {
/**
* The singleton instance.
*/
INSTANCE;
@Override
public String resolve(MethodDescription methodDescription) {
return methodDescription.getInternalName();
}
@Override
public String toString() {
return "InvokeDynamic.InvocationProvider.NameProvider.ForInterceptedMethod." + name();
}
}
/**
* A name provider that provides an explicit name.
*/
class ForExplicitName implements NameProvider {
/**
* The name to be provided.
*/
private final String internalName;
/**
* Creates a new name provider for an explicit name.
*
* @param internalName The name to be provided.
*/
public ForExplicitName(String internalName) {
this.internalName = internalName;
}
@Override
public String resolve(MethodDescription methodDescription) {
return internalName;
}
@Override
public boolean equals(Object other) {
return this == other || !(other == null || getClass() != other.getClass())
&& internalName.equals(((ForExplicitName) other).internalName);
}
@Override
public int hashCode() {
return internalName.hashCode();
}
@Override
public String toString() {
return "InvokeDynamic.InvocationProvider.NameProvider.ForExplicitName{" +
"internalName='" + internalName + '\'' +
'}';
}
}
}
/**
* Provides the return type that is requested from the bootstrap method.
*/
interface ReturnTypeProvider {
/**
* Resolves the return type that is requested from the bootstrap method.
*
* @param methodDescription The intercepted method.
* @return The return type that is requested from the bootstrap method.
*/
TypeDescription resolve(MethodDescription methodDescription);
/**
* Requests the return type of the intercepted method.
*/
enum ForInterceptedMethod implements ReturnTypeProvider {
/**
* The singleton instance.
*/
INSTANCE;
@Override
public TypeDescription resolve(MethodDescription methodDescription) {
return methodDescription.getReturnType().asErasure();
}
@Override
public String toString() {
return "InvokeDynamic.InvocationProvider.ReturnTypeProvider.ForInterceptedMethod." + name();
}
}
/**
* Requests an explicit return type.
*/
class ForExplicitType implements ReturnTypeProvider {
/**
* The requested return type.
*/
private final TypeDescription typeDescription;
/**
* Creates a new return type provider for an explicit return type.
*
* @param typeDescription The requested return type.
*/
public ForExplicitType(TypeDescription typeDescription) {
this.typeDescription = typeDescription;
}
@Override
public TypeDescription resolve(MethodDescription methodDescription) {
return typeDescription;
}
@Override
public boolean equals(Object other) {
return this == other || !(other == null || getClass() != other.getClass())
&& typeDescription.equals(((ForExplicitType) other).typeDescription);
}
@Override
public int hashCode() {
return typeDescription.hashCode();
}
@Override
public String toString() {
return "InvokeDynamic.InvocationProvider.ReturnTypeProvider.ForExplicitType{" +
"typeDescription=" + typeDescription +
'}';
}
}
}
/**
* An invocation provider that requests a synthetic dynamic invocation where all arguments are explicitly
* provided by the user.
*/
class Default implements InvocationProvider {
/**
* The provider for the name of the intercepted method.
*/
private final NameProvider nameProvider;
/**
* The provider for the required return type.
*/
private final ReturnTypeProvider returnTypeProvider;
/**
* The providers for the method arguments in their order.
*/
private final List argumentProviders;
/**
* Creates a new default invocation provider that provides information and arguments of the
* intercepted method.
*/
public Default() {
this(NameProvider.ForInterceptedMethod.INSTANCE,
ReturnTypeProvider.ForInterceptedMethod.INSTANCE,
Collections.singletonList(ArgumentProvider.ForInterceptedMethodInstanceAndParameters.INSTANCE));
}
/**
* Creates a new default invocation provider.
*
* @param nameProvider The provider for the name of the intercepted method.
* @param returnTypeProvider The provider for the required return type.
* @param argumentProviders The providers for the method arguments in their order.
*/
public Default(NameProvider nameProvider,
ReturnTypeProvider returnTypeProvider,
List argumentProviders) {
this.nameProvider = nameProvider;
this.returnTypeProvider = returnTypeProvider;
this.argumentProviders = argumentProviders;
}
@Override
public Target make(MethodDescription methodDescription) {
return new Target(nameProvider.resolve(methodDescription),
returnTypeProvider.resolve(methodDescription),
argumentProviders,
methodDescription);
}
@Override
public InvocationProvider appendArguments(List argumentProviders) {
return new Default(nameProvider,
returnTypeProvider,
CompoundList.of(this.argumentProviders, argumentProviders));
}
@Override
public InvocationProvider appendArgument(ArgumentProvider argumentProvider) {
return new Default(nameProvider,
returnTypeProvider,
CompoundList.of(this.argumentProviders, argumentProvider));
}
@Override
public InvocationProvider withoutArguments() {
return new Default(nameProvider,
returnTypeProvider,
Collections.emptyList());
}
@Override
public InvocationProvider withNameProvider(NameProvider nameProvider) {
return new Default(nameProvider,
returnTypeProvider,
argumentProviders);
}
@Override
public InvocationProvider withReturnTypeProvider(ReturnTypeProvider returnTypeProvider) {
return new Default(nameProvider,
returnTypeProvider,
argumentProviders);
}
@Override
public InstrumentedType prepare(InstrumentedType instrumentedType) {
for (ArgumentProvider argumentProvider : argumentProviders) {
instrumentedType = argumentProvider.prepare(instrumentedType);
}
return instrumentedType;
}
@Override
public boolean equals(Object other) {
if (this == other) return true;
if (other == null || getClass() != other.getClass()) return false;
Default that = (Default) other;
return argumentProviders.equals(that.argumentProviders)
&& nameProvider.equals(that.nameProvider)
&& returnTypeProvider.equals(that.returnTypeProvider);
}
@Override
public int hashCode() {
int result = nameProvider.hashCode();
result = 31 * result + returnTypeProvider.hashCode();
result = 31 * result + argumentProviders.hashCode();
return result;
}
@Override
public String toString() {
return "InvokeDynamic.InvocationProvider.Default{" +
"nameProvider=" + nameProvider +
", returnTypeProvider=" + returnTypeProvider +
", argumentProviders=" + argumentProviders +
'}';
}
/**
* A target for a synthetically bound method call.
*/
protected static class Target implements InvocationProvider.Target {
/**
* The name to be passed to the bootstrap method.
*/
private final String internalName;
/**
* The return type to be requested from the bootstrapping method.
*/
private final TypeDescription returnType;
/**
* The arguments to be passed to the bootstrap method.
*/
private final List argumentProviders;
/**
* The intercepted method.
*/
private final MethodDescription instrumentedMethod;
/**
* Creates a new target.
*
* @param internalName The name to be passed to the bootstrap method.
* @param returnType The return type to be requested from the bootstrapping method.
* @param argumentProviders The arguments to be passed to the bootstrap method.
* @param instrumentedMethod The intercepted method.
*/
public Target(String internalName,
TypeDescription returnType,
List argumentProviders,
MethodDescription instrumentedMethod) {
this.internalName = internalName;
this.returnType = returnType;
this.argumentProviders = argumentProviders;
this.instrumentedMethod = instrumentedMethod;
}
@Override
public InvocationProvider.Target.Resolved resolve(TypeDescription instrumentedType, Assigner assigner, Assigner.Typing typing) {
StackManipulation[] stackManipulation = new StackManipulation[argumentProviders.size()];
List parameterTypes = new ArrayList();
int index = 0;
for (ArgumentProvider argumentProvider : argumentProviders) {
ArgumentProvider.Resolved resolved = argumentProvider.resolve(instrumentedType, instrumentedMethod, assigner, typing);
parameterTypes.addAll(resolved.getLoadedTypes());
stackManipulation[index++] = resolved.getLoadInstruction();
}
return new Resolved.Simple(new StackManipulation.Compound(stackManipulation),
internalName,
returnType,
parameterTypes);
}
@Override
public boolean equals(Object other) {
if (this == other) return true;
if (other == null || getClass() != other.getClass()) return false;
Target target = (Target) other;
return argumentProviders.equals(target.argumentProviders)
&& instrumentedMethod.equals(target.instrumentedMethod)
&& internalName.equals(target.internalName)
&& returnType.equals(target.returnType);
}
@Override
public int hashCode() {
int result = internalName.hashCode();
result = 31 * result + returnType.hashCode();
result = 31 * result + argumentProviders.hashCode();
result = 31 * result + instrumentedMethod.hashCode();
return result;
}
@Override
public String toString() {
return "InvokeDynamic.InvocationProvider.Default.Target{" +
"internalName='" + internalName + '\'' +
", returnType=" + returnType +
", argumentProviders=" + argumentProviders +
", instrumentedMethod=" + instrumentedMethod +
'}';
}
}
}
}
/**
* A termination handler is responsible to handle the return value of a method that is invoked via a
* {@link org.testifyproject.bytebuddy.implementation.InvokeDynamic}.
*/
protected interface TerminationHandler {
/**
* Returns a stack manipulation that handles the method return.
*
* @param interceptedMethod The method being intercepted.
* @param returnType The return type of the instrumented method.
* @param assigner The assigner to use.
* @param typing Indicates if dynamic type castings should be attempted for incompatible assignments.
* @return A stack manipulation that handles the method return.
*/
StackManipulation resolve(MethodDescription interceptedMethod,
TypeDescription returnType,
Assigner assigner,
Assigner.Typing typing);
/**
* Returns the return value of the dynamic invocation from the intercepted method.
*/
enum ForMethodReturn implements TerminationHandler {
/**
* The singleton instance.
*/
INSTANCE;
@Override
public StackManipulation resolve(MethodDescription interceptedMethod, TypeDescription returnType, Assigner assigner, Assigner.Typing typing) {
StackManipulation stackManipulation = assigner.assign(returnType.asGenericType(), interceptedMethod.getReturnType(), typing);
if (!stackManipulation.isValid()) {
throw new IllegalStateException("Cannot return " + returnType + " from " + interceptedMethod);
}
return new StackManipulation.Compound(stackManipulation, MethodReturn.returning(interceptedMethod.getReturnType().asErasure()));
}
@Override
public String toString() {
return "InvokeDynamic.TerminationHandler.ForMethodReturn." + name();
}
}
/**
* Drops the return value of the dynamic invocation from the operand stack without returning from the
* intercepted method.
*/
enum ForChainedInvocation implements TerminationHandler {
/**
* The singleton instance.
*/
INSTANCE;
@Override
public StackManipulation resolve(MethodDescription interceptedMethod, TypeDescription returnType, Assigner assigner, Assigner.Typing typing) {
return Removal.pop(interceptedMethod.isConstructor()
? interceptedMethod.getDeclaringType().asErasure()
: interceptedMethod.getReturnType().asErasure());
}
@Override
public String toString() {
return "InvokeDynamic.TerminationHandler.ForChainedInvocation." + name();
}
}
}
/**
* An abstract delegator that allows to specify a configuration for any specification of an argument.
*/
protected abstract static class AbstractDelegator extends InvokeDynamic {
/**
* Creates a new abstract delegator for a dynamic method invocation.
*
* @param bootstrapMethod The bootstrap method.
* @param handleArguments The arguments that are provided to the bootstrap method.
* @param invocationProvider The target provided that identifies the method to be bootstrapped.
* @param terminationHandler A handler that handles the method return.
* @param assigner The assigner to be used.
* @param typing Indicates if dynamic type castings should be attempted for incompatible assignments.
*/
public AbstractDelegator(MethodDescription.InDefinedShape bootstrapMethod,
List handleArguments,
InvocationProvider invocationProvider,
TerminationHandler terminationHandler,
Assigner assigner,
Assigner.Typing typing) {
super(bootstrapMethod, handleArguments, invocationProvider, terminationHandler, assigner, typing);
}
/**
* Resolves the current configuration into a fully initialized invoke dynamic instance.
*
* @return The fully resolved invoke dynamic instance.
*/
protected abstract InvokeDynamic materialize();
@Override
public InvokeDynamic withBooleanValue(boolean... value) {
return materialize().withBooleanValue(value);
}
@Override
public InvokeDynamic withByteValue(byte... value) {
return materialize().withByteValue(value);
}
@Override
public InvokeDynamic withShortValue(short... value) {
return materialize().withShortValue(value);
}
@Override
public InvokeDynamic withCharacterValue(char... value) {
return materialize().withCharacterValue(value);
}
@Override
public InvokeDynamic withIntegerValue(int... value) {
return materialize().withIntegerValue(value);
}
@Override
public InvokeDynamic withLongValue(long... value) {
return materialize().withLongValue(value);
}
@Override
public InvokeDynamic withFloatValue(float... value) {
return materialize().withFloatValue(value);
}
@Override
public InvokeDynamic withDoubleValue(double... value) {
return materialize().withDoubleValue(value);
}
@Override
public InvokeDynamic withValue(Object... value) {
return materialize().withValue(value);
}
@Override
public WithImplicitFieldType withReference(Object value) {
return materialize().withReference(value);
}
@Override
public InvokeDynamic withReference(Object... value) {
return materialize().withReference(value);
}
@Override
public InvokeDynamic withType(TypeDescription... typeDescription) {
return materialize().withType(typeDescription);
}
@Override
public InvokeDynamic withInstance(JavaInstance... javaInstance) {
return materialize().withInstance(javaInstance);
}
@Override
public InvokeDynamic withNullValue(Class... type) {
return materialize().withNullValue(type);
}
@Override
public InvokeDynamic withNullValue(TypeDescription... typeDescription) {
return materialize().withNullValue(typeDescription);
}
@Override
public InvokeDynamic withArgument(int... index) {
return materialize().withArgument(index);
}
@Override
public WithImplicitArgumentType withArgument(int index) {
return materialize().withArgument(index);
}
@Override
public InvokeDynamic withThis(Class... type) {
return materialize().withThis(type);
}
@Override
public InvokeDynamic withThis(TypeDescription... typeDescription) {
return materialize().withThis(typeDescription);
}
@Override
public InvokeDynamic withMethodArguments() {
return materialize().withMethodArguments();
}
@Override
public InvokeDynamic withImplicitAndMethodArguments() {
return materialize().withImplicitAndMethodArguments();
}
@Override
public InvokeDynamic withInstanceField(String fieldName, java.lang.reflect.Type fieldType) {
return materialize().withInstanceField(fieldName, fieldType);
}
@Override
public InvokeDynamic withInstanceField(String fieldName, TypeDefinition fieldType) {
return materialize().withInstanceField(fieldName, fieldType);
}
@Override
public InvokeDynamic withField(String... fieldName) {
return materialize().withField(fieldName);
}
}
/**
* Representation of an {@link org.testifyproject.bytebuddy.implementation.InvokeDynamic} implementation where the bootstrapped
* method is passed a {@code this} reference, if available, and any arguments of the instrumented method.
*/
public static class WithImplicitArguments extends AbstractDelegator {
/**
* Creates a new dynamic method invocation with implicit arguments.
*
* @param bootstrapMethod The bootstrap method.
* @param handleArguments The arguments that are provided to the bootstrap method.
* @param invocationProvider The target provided that identifies the method to be bootstrapped.
* @param terminationHandler A handler that handles the method return.
* @param assigner The assigner to be used.
* @param typing Indicates if dynamic type castings should be attempted for incompatible assignments.
*/
protected WithImplicitArguments(MethodDescription.InDefinedShape bootstrapMethod,
List handleArguments,
InvocationProvider invocationProvider,
TerminationHandler terminationHandler,
Assigner assigner,
Assigner.Typing typing) {
super(bootstrapMethod,
handleArguments,
invocationProvider,
terminationHandler,
assigner,
typing);
}
/**
* Returns an instance of this instrumentation where the bootstrapped method is not passed any arguments.
*
* @return This implementation where the bootstrapped method is not passed any arguments.
*/
public InvokeDynamic withoutArguments() {
return new InvokeDynamic(bootstrapMethod,
handleArguments,
invocationProvider.withoutArguments(),
terminationHandler,
assigner,
typing);
}
@Override
protected InvokeDynamic materialize() {
return withoutArguments();
}
@Override
public WithImplicitArguments withAssigner(Assigner assigner, Assigner.Typing typing) {
return new WithImplicitArguments(bootstrapMethod,
handleArguments,
invocationProvider,
terminationHandler,
assigner,
typing);
}
@Override
public String toString() {
return "InvokeDynamic.WithImplicitArguments{" +
"bootstrapMethod=" + bootstrapMethod +
", handleArguments=" + handleArguments +
", invocationProvider=" + invocationProvider +
", terminationHandler=" + terminationHandler +
", assigner=" + assigner +
", typing=" + typing +
'}';
}
}
/**
* Representation of an {@link org.testifyproject.bytebuddy.implementation.InvokeDynamic} implementation where the bootstrapped
* method is passed a {@code this} reference, if available, and any arguments of the instrumented method and
* where the invocation target is implicit.
*/
public static class WithImplicitTarget extends WithImplicitArguments {
/**
* Creates a new dynamic method invocation with implicit arguments and an implicit invocation target.
*
* @param bootstrapMethod The bootstrap method.
* @param handleArguments The arguments that are provided to the bootstrap method.
* @param invocationProvider The target provided that identifies the method to be bootstrapped.
* @param terminationHandler A handler that handles the method return.
* @param assigner The assigner to be used.
* @param typing Indicates if dynamic type castings should be attempted for incompatible assignments.
*/
protected WithImplicitTarget(MethodDescription.InDefinedShape bootstrapMethod,
List handleArguments,
InvocationProvider invocationProvider,
TerminationHandler terminationHandler,
Assigner assigner,
Assigner.Typing typing) {
super(bootstrapMethod,
handleArguments,
invocationProvider,
terminationHandler,
assigner,
typing);
}
/**
* Requests the bootstrap method to bind a method with the given return type. The return type
* is he assigned to the intercepted method's return type.
*
* @param returnType The return type to request from the bootstrapping method.
* @return This implementation where the bootstrap method is requested to bind a method with the given
* return type.
*/
public InvokeDynamic.WithImplicitArguments invoke(Class returnType) {
return invoke(new TypeDescription.ForLoadedType(returnType));
}
/**
* Requests the bootstrap method to bind a method with the given return type. The return type
* is he assigned to the intercepted method's return type.
*
* @param returnType The return type to request from the bootstrapping method.
* @return This implementation where the bootstrap method is requested to bind a method with the given
* return type.
*/
public InvokeDynamic.WithImplicitArguments invoke(TypeDescription returnType) {
return new WithImplicitArguments(bootstrapMethod,
handleArguments,
invocationProvider.withReturnTypeProvider(new InvocationProvider.ReturnTypeProvider.ForExplicitType(returnType)),
terminationHandler,
assigner,
typing);
}
/**
* Requests the bootstrap method is passed the given method name.
*
* @param methodName The method name to pass to the bootstrapping method.
* @return This implementation where the bootstrap method is passed the given method name.
*/
public InvokeDynamic.WithImplicitArguments invoke(String methodName) {
return new WithImplicitArguments(bootstrapMethod,
handleArguments,
invocationProvider.withNameProvider(new InvocationProvider.NameProvider.ForExplicitName(methodName)),
terminationHandler,
assigner,
typing);
}
/**
* Requests the bootstrap method to bind a method with the given return type. The return type
* is he assigned to the intercepted method's return type. Also, the bootstrap method is passed the
* given method name,
*
* @param methodName The method name to pass to the bootstrapping method.
* @param returnType The return type to request from the bootstrapping method.
* @return This implementation where the bootstrap method is requested to bind a method with the given
* return type while being passed the given method name.
*/
public InvokeDynamic.WithImplicitArguments invoke(String methodName, Class returnType) {
return invoke(methodName, new TypeDescription.ForLoadedType(returnType));
}
/**
* Requests the bootstrap method to bind a method with the given return type. The return type
* is he assigned to the intercepted method's return type. Also, the bootstrap method is passed the
* given method name,
*
* @param methodName The method name to pass to the bootstrapping method.
* @param returnType The return type to request from the bootstrapping method.
* @return This implementation where the bootstrap method is requested to bind a method with the given
* return type while being passed the given method name.
*/
public InvokeDynamic.WithImplicitArguments invoke(String methodName, TypeDescription returnType) {
return new WithImplicitArguments(bootstrapMethod,
handleArguments,
invocationProvider
.withNameProvider(new InvocationProvider.NameProvider.ForExplicitName(methodName))
.withReturnTypeProvider(new InvocationProvider.ReturnTypeProvider.ForExplicitType(returnType)),
terminationHandler,
assigner,
typing);
}
@Override
public String toString() {
return "InvokeDynamic.WithImplicitTarget{" +
"bootstrapMethod=" + bootstrapMethod +
", handleArguments=" + handleArguments +
", invocationProvider=" + invocationProvider +
", terminationHandler=" + terminationHandler +
", assigner=" + assigner +
", typing=" + typing +
'}';
}
}
/**
* A step in the invoke dynamic domain specific language that allows to explicitly specify a field type for a reference value.
*/
@SuppressFBWarnings(value = "EQ_DOESNT_OVERRIDE_EQUALS", justification = "Super type implementation convers use case")
public static class WithImplicitFieldType extends AbstractDelegator {
/**
* The value that is supplied as the next argument to the bootstrapped method.
*/
private final Object value;
/**
* An argument provider that represents the argument with an implicit type.
*/
private final InvocationProvider.ArgumentProvider argumentProvider;
/**
* Creates a new invoke dynamic instance with an implicit field type for the provided value.
*
* @param bootstrapMethod The bootstrap method.
* @param handleArguments The arguments that are provided to the bootstrap method.
* @param invocationProvider The target provided that identifies the method to be bootstrapped.
* @param terminationHandler A handler that handles the method return.
* @param assigner The assigner to be used.
* @param typing Indicates if dynamic type castings should be attempted for incompatible assignments.
* @param value The value that is supplied as the next argument to the bootstrapped method.
*/
protected WithImplicitFieldType(MethodDescription.InDefinedShape bootstrapMethod,
List handleArguments,
InvocationProvider invocationProvider,
TerminationHandler terminationHandler,
Assigner assigner,
Assigner.Typing typing,
Object value) {
super(bootstrapMethod, handleArguments, invocationProvider, terminationHandler, assigner, typing);
this.value = value;
this.argumentProvider = InvocationProvider.ArgumentProvider.ForStaticField.of(value);
}
/**
* Defines the given value to be treated as an instance of the provided type.
*
* @param type The type as which the provided instance should be handed to the bootstrap method.
* @return An invoke dynamic instance with the same configuration as this instance but with the provided argument
* appended to the arguments of the bootstrapped method.
*/
public InvokeDynamic as(java.lang.reflect.Type type) {
return as(TypeDefinition.Sort.describe(type));
}
/**
* Defines the given value to be treated as an instance of the provided type.
*
* @param typeDefinition The type as which the provided instance should be handed to the bootstrap method.
* @return An invoke dynamic instance with the same configuration as this instance but with the provided argument
* appended to the arguments of the bootstrapped method.
*/
public InvokeDynamic as(TypeDefinition typeDefinition) {
return new InvokeDynamic(bootstrapMethod,
handleArguments,
invocationProvider.appendArgument(new InvocationProvider.ArgumentProvider.ForStaticField(value, typeDefinition.asGenericType())),
terminationHandler,
assigner,
typing);
}
@Override
protected InvokeDynamic materialize() {
return new InvokeDynamic(bootstrapMethod,
handleArguments,
invocationProvider.appendArgument(argumentProvider),
terminationHandler,
assigner,
typing);
}
@Override
public InvokeDynamic withAssigner(Assigner assigner, Assigner.Typing typing) {
return materialize().withAssigner(assigner, typing);
}
@Override
public Implementation andThen(Implementation implementation) {
return materialize().andThen(implementation);
}
@Override
public InstrumentedType prepare(InstrumentedType instrumentedType) {
return materialize().prepare(instrumentedType);
}
@Override
public ByteCodeAppender appender(Target implementationTarget) {
return materialize().appender(implementationTarget);
}
@Override
protected InvocationProvider getInvocationProvider() {
return materialize().getInvocationProvider();
}
@Override
public String toString() {
return "InvokeDynamic.WithImplicitFieldType{" +
"bootstrapMethod=" + bootstrapMethod +
", handleArguments=" + handleArguments +
", invocationProvider=" + invocationProvider +
", terminationHandler=" + terminationHandler +
", assigner=" + assigner +
", typing=" + typing +
", value=" + value +
'}';
}
}
/**
* An invoke dynamic implementation where the last argument is an implicitly typed method argument.
*/
@SuppressFBWarnings(value = "EQ_DOESNT_OVERRIDE_EQUALS", justification = "Super type implementation convers use case")
public static class WithImplicitArgumentType extends AbstractDelegator {
/**
* The index of the method argument.
*/
private final int index;
/**
* Creates a new invoke dynamic instance with an implicit field type for the provided value.
*
* @param bootstrapMethod The bootstrap method.
* @param handleArguments The arguments that are provided to the bootstrap method.
* @param invocationProvider The target provided that identifies the method to be bootstrapped.
* @param terminationHandler A handler that handles the method return.
* @param assigner The assigner to be used.
* @param typing Indicates if dynamic type castings should be attempted for incompatible assignments.
* @param index The index of of the argument to supply to the bootstapped method.
*/
protected WithImplicitArgumentType(MethodDescription.InDefinedShape bootstrapMethod,
List handleArguments,
InvocationProvider invocationProvider,
TerminationHandler terminationHandler,
Assigner assigner,
Assigner.Typing typing,
int index) {
super(bootstrapMethod, handleArguments, invocationProvider, terminationHandler, assigner, typing);
this.index = index;
}
/**
* Defines the given argument to be treated as an instance of the provided type.
*
* @param type The type as which the provided argument should be handed to the bootstrap method.
* @return An invoke dynamic instance with the same configuration as this instance but with the provided argument
* appended to the arguments of the bootstrapped method.
*/
public InvokeDynamic as(Class type) {
return as(new TypeDescription.ForLoadedType(type));
}
/**
* Defines the given argument to be treated as an instance of the provided type.
*
* @param typeDescription The type as which the provided argument should be handed to the bootstrap method.
* @return An invoke dynamic instance with the same configuration as this instance but with the provided argument
* appended to the arguments of the bootstrapped method.
*/
public InvokeDynamic as(TypeDescription typeDescription) {
return new InvokeDynamic(bootstrapMethod,
handleArguments,
invocationProvider.appendArgument(new InvocationProvider.ArgumentProvider.ForExplicitTypedMethodParameter(index, typeDescription)),
terminationHandler,
assigner,
typing);
}
@Override
protected InvokeDynamic materialize() {
return new InvokeDynamic(bootstrapMethod,
handleArguments,
invocationProvider.appendArgument(new InvocationProvider.ArgumentProvider.ForMethodParameter(index)),
terminationHandler,
assigner,
typing);
}
@Override
public InvokeDynamic withAssigner(Assigner assigner, Assigner.Typing typing) {
return materialize().withAssigner(assigner, typing);
}
@Override
public Implementation andThen(Implementation implementation) {
return materialize().andThen(implementation);
}
@Override
public InstrumentedType prepare(InstrumentedType instrumentedType) {
return materialize().prepare(instrumentedType);
}
@Override
public ByteCodeAppender appender(Target implementationTarget) {
return materialize().appender(implementationTarget);
}
@Override
protected InvocationProvider getInvocationProvider() {
return materialize().getInvocationProvider();
}
@Override
public String toString() {
return "InvokeDynamic.WithImplicitArgumentType{" +
"bootstrapMethod=" + bootstrapMethod +
", handleArguments=" + handleArguments +
", invocationProvider=" + invocationProvider +
", terminationHandler=" + terminationHandler +
", assigner=" + assigner +
", typing=" + typing +
", index=" + index +
'}';
}
}
/**
* The byte code appender to be used by the {@link org.testifyproject.bytebuddy.implementation.InvokeDynamic} implementation.
*/
protected class Appender implements ByteCodeAppender {
/**
* The instrumented type of the current implementation.
*/
private final TypeDescription instrumentedType;
/**
* Creates a new byte code appender for an invoke dynamic implementation.
*
* @param instrumentedType The instrumented type of the current implementation.
*/
public Appender(TypeDescription instrumentedType) {
this.instrumentedType = instrumentedType;
}
@Override
public Size apply(MethodVisitor methodVisitor, Context implementationContext, MethodDescription instrumentedMethod) {
InvocationProvider.Target.Resolved target = invocationProvider.make(instrumentedMethod).resolve(instrumentedType, assigner, typing);
StackManipulation.Size size = new StackManipulation.Compound(
target.getStackManipulation(),
MethodInvocation.invoke(bootstrapMethod)
.dynamic(target.getInternalName(),
target.getReturnType(),
target.getParameterTypes(),
handleArguments),
terminationHandler.resolve(instrumentedMethod, target.getReturnType(), assigner, typing)
).apply(methodVisitor, implementationContext);
return new Size(size.getMaximalSize(), instrumentedMethod.getStackSize());
}
@Override
public boolean equals(Object other) {
if (this == other) return true;
if (other == null || getClass() != other.getClass()) return false;
Appender appender = (Appender) other;
return instrumentedType.equals(appender.instrumentedType)
&& InvokeDynamic.this.equals(appender.getOuter());
}
/**
* Returns the outer instance.
*
* @return The outer instance.
*/
private InvokeDynamic getOuter() {
return InvokeDynamic.this;
}
@Override
public int hashCode() {
return instrumentedType.hashCode();
}
@Override
public String toString() {
return "InvokeDynamic.Appender{" +
"invokeDynamic=" + InvokeDynamic.this +
", instrumentedType=" + instrumentedType +
'}';
}
}
}
