org.eclipse.xtext.xbase.interpreter.impl

Class XbaseInterpreter

java.lang.Object

org.eclipse.xtext.xbase.interpreter.impl.XbaseInterpreter

All Implemented Interfaces:

IExpressionInterpreter

public class XbaseInterpreter
extends Object
implements IExpressionInterpreter

Author:

Sebastian Zarnekow - Initial contribution and API, Sven Efftinge

Constructor Summary

Constructors

Constructor and Description
XbaseInterpreter()
XbaseInterpreter(com.google.inject.Provider<IEvaluationContext> contextProvider, JavaReflectAccess javaReflectAccess, ClassLoader loader)

Method Summary

Methods

Modifier and Type	Method and Description
protected Object	_assignValueTo(JvmField jvmField, XAbstractFeatureCall assignment, Object value, IEvaluationContext context, CancelIndicator indicator)
protected Object	_assignValueTo(JvmOperation jvmOperation, XAbstractFeatureCall assignment, Object value, IEvaluationContext context, CancelIndicator indicator)
protected Object	_assignValueTo(XVariableDeclaration variable, XAbstractFeatureCall assignment, Object value, IEvaluationContext context, CancelIndicator indicator)
protected Object	_doEvaluate(XAbstractFeatureCall featureCall, IEvaluationContext context, CancelIndicator indicator)
protected Object	_doEvaluate(XAssignment assignment, IEvaluationContext context, CancelIndicator indicator)
protected Object	_doEvaluate(XBasicForLoopExpression forLoop, IEvaluationContext context, CancelIndicator indicator)
protected Object	_doEvaluate(XBlockExpression literal, IEvaluationContext context, CancelIndicator indicator)
protected Object	_doEvaluate(XBooleanLiteral literal, IEvaluationContext context, CancelIndicator indicator)
protected Object	_doEvaluate(XCastedExpression castedExpression, IEvaluationContext context, CancelIndicator indicator)
protected Object	_doEvaluate(XClosure closure, IEvaluationContext context, CancelIndicator indicator)
protected Object	_doEvaluate(XConstructorCall constructorCall, IEvaluationContext context, CancelIndicator indicator)
protected IEvaluationResult	_doEvaluate(XDoWhileExpression doWhileLoop, IEvaluationContext context, CancelIndicator indicator)
protected Object	_doEvaluate(XFeatureCall featureCall, IEvaluationContext context, CancelIndicator indicator)
protected Object	_doEvaluate(XForLoopExpression forLoop, IEvaluationContext context, CancelIndicator indicator)
protected Object	_doEvaluate(XIfExpression ifExpression, IEvaluationContext context, CancelIndicator indicator)
protected Object	_doEvaluate(XInstanceOfExpression instanceOf, IEvaluationContext context, CancelIndicator indicator)
protected Object	_doEvaluate(XListLiteral literal, IEvaluationContext context, CancelIndicator indicator)
protected Object	_doEvaluate(XMemberFeatureCall featureCall, IEvaluationContext context, CancelIndicator indicator)
protected Object	_doEvaluate(XNullLiteral literal, IEvaluationContext context, CancelIndicator indicator)
protected Object	_doEvaluate(XNumberLiteral literal, IEvaluationContext context, CancelIndicator indicator)
protected Object	_doEvaluate(XReturnExpression returnExpr, IEvaluationContext context, CancelIndicator indicator)
protected Object	_doEvaluate(XSetLiteral literal, IEvaluationContext context, CancelIndicator indicator)
protected Object	_doEvaluate(XStringLiteral literal, IEvaluationContext context, CancelIndicator indicator)
protected Object	_doEvaluate(XSwitchExpression switchExpression, IEvaluationContext context, CancelIndicator indicator)
protected Object	_doEvaluate(XSynchronizedExpression expression, IEvaluationContext context, CancelIndicator indicator)
protected Object	_doEvaluate(XThrowExpression throwExpression, IEvaluationContext context, CancelIndicator indicator)
protected Object	_doEvaluate(XTryCatchFinallyExpression tryCatchFinally, IEvaluationContext context, CancelIndicator indicator)
protected Object	_doEvaluate(XTypeLiteral literal, IEvaluationContext context, CancelIndicator indicator)
protected Object	_doEvaluate(XVariableDeclaration variableDecl, IEvaluationContext context, CancelIndicator indicator)
protected Object	_doEvaluate(XWhileExpression whileLoop, IEvaluationContext context, CancelIndicator indicator)
protected Object	_invokeFeature(JvmField jvmField, XAbstractFeatureCall featureCall, Object receiver, IEvaluationContext context, CancelIndicator indicator)
protected Object	_invokeFeature(JvmIdentifiableElement identifiable, XAbstractFeatureCall featureCall, Object receiver, IEvaluationContext context, CancelIndicator indicator)
protected Object	_invokeFeature(JvmOperation operation, XAbstractFeatureCall featureCall, Object receiver, IEvaluationContext context, CancelIndicator indicator)
protected Object	applyGetAndAssignOperator(Object originalValue, String operatorName)
protected Object	assignValueTo(JvmIdentifiableElement feature, XAbstractFeatureCall assignment, Object value, IEvaluationContext context, CancelIndicator indicator)
protected Object	castToPrimitiveType(Object castMe, Primitives.Primitive kind)
protected Object	coerceArgumentType(Object value, JvmTypeReference expectedType)
protected IEvaluationContext	createContext()
protected Object	doEvaluate(XExpression expression, IEvaluationContext context, CancelIndicator indicator) don't call this directly.
protected boolean	eq(Object a, Object b)
IEvaluationResult	evaluate(XExpression expression)
IEvaluationResult	evaluate(XExpression expression, IEvaluationContext context, CancelIndicator indicator)
protected List<Object>	evaluateArgumentExpressions(JvmExecutable executable, List<XExpression> expressions, IEvaluationContext context, CancelIndicator indicator)
protected Object	evaluateGetAndAssign(XAbstractFeatureCall featureCall, IEvaluationContext context, CancelIndicator indicator)
protected Object	featureCallField(JvmField jvmField, Object receiver)
protected List<XExpression>	getActualArguments(XAbstractFeatureCall featureCall)
protected XExpression	getActualReceiver(XAbstractFeatureCall featureCall)
protected Class<?>	getClass(Class<?> class1)
protected ClassFinder	getClassFinder()
protected Object	getDefaultObjectValue(LightweightTypeReference type)
protected JavaReflectAccess	getJavaReflectAccess()
protected Class<?>	getJavaType(JvmType type)
protected Object	getReceiver(XAbstractFeatureCall assignment, IEvaluationContext context, CancelIndicator indicator)
protected Object	internalEvaluate(XExpression expression, IEvaluationContext context, CancelIndicator indicator)
protected Object	invokeFeature(JvmIdentifiableElement feature, XAbstractFeatureCall featureCall, Object receiverObj, IEvaluationContext context, CancelIndicator indicator)
protected Object	invokeOperation(JvmOperation operation, Object receiver, List<Object> argumentValues)
protected Object	invokeOperation(JvmOperation operation, Object receiver, List<Object> argumentValues, IEvaluationContext context, CancelIndicator indicator)
protected boolean	isGetAndAssign(XAbstractFeatureCall featureCall)
protected boolean	isType(XExpression element, Class<?> clazz)
protected LightweightTypeReference	resolveType(XExpression element, Class<?> clazz)
void	setClassLoader(ClassLoader classLoader)
void	setFeatureNameProvider(IdentifiableSimpleNameProvider featureNameProvider)
protected Object	throwClassCastException(XExpression expression, Object result, Class<?> expectedType)
protected Object	throwNullPointerException(XExpression expression, String message)
protected Object	translateJvmTypeToResult(JvmType type, int arrayDims)
protected Object	wrapOrUnwrapArray(Object result, LightweightTypeReference expectedType)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

XbaseInterpreter

public XbaseInterpreter()

XbaseInterpreter

public XbaseInterpreter(com.google.inject.Provider<IEvaluationContext> contextProvider,
                JavaReflectAccess javaReflectAccess,
                ClassLoader loader)

Method Detail

setFeatureNameProvider

public void setFeatureNameProvider(IdentifiableSimpleNameProvider featureNameProvider)

setClassLoader

@Inject
public void setClassLoader(ClassLoader classLoader)

getClass

protected Class<?> getClass(Class<?> class1)

evaluate

public IEvaluationResult evaluate(XExpression expression)

Specified by:

evaluate in interface IExpressionInterpreter

createContext

protected IEvaluationContext createContext()

evaluate

public IEvaluationResult evaluate(XExpression expression,
                         IEvaluationContext context,
                         CancelIndicator indicator)

Specified by:

evaluate in interface IExpressionInterpreter

internalEvaluate

protected Object internalEvaluate(XExpression expression,
                      IEvaluationContext context,
                      CancelIndicator indicator)
                           throws EvaluationException

Throws:

EvaluationException

doEvaluate

protected Object doEvaluate(XExpression expression,
                IEvaluationContext context,
                CancelIndicator indicator)

don't call this directly. Always call evaluate() internalEvaluate()

_doEvaluate

protected Object _doEvaluate(XNullLiteral literal,
                 IEvaluationContext context,
                 CancelIndicator indicator)

Parameters:

literal - unused in this context but required for dispatching

context - unused in this context but required for dispatching

indicator - unused in this context but required for dispatching

_doEvaluate

protected Object _doEvaluate(XReturnExpression returnExpr,
                 IEvaluationContext context,
                 CancelIndicator indicator)

_doEvaluate

protected Object _doEvaluate(XStringLiteral literal,
                 IEvaluationContext context,
                 CancelIndicator indicator)

Parameters:

context - unused in this context but required for dispatching

indicator - unused in this context but required for dispatching

_doEvaluate

protected Object _doEvaluate(XNumberLiteral literal,
                 IEvaluationContext context,
                 CancelIndicator indicator)

Parameters:

context - unused in this context but required for dispatching

indicator - unused in this context but required for dispatching

_doEvaluate

protected Object _doEvaluate(XBooleanLiteral literal,
                 IEvaluationContext context,
                 CancelIndicator indicator)

Parameters:

context - unused in this context but required for dispatching

indicator - unused in this context but required for dispatching

_doEvaluate

protected Object _doEvaluate(XTypeLiteral literal,
                 IEvaluationContext context,
                 CancelIndicator indicator)

Parameters:

context - unused in this context but required for dispatching

indicator - unused in this context but required for dispatching

_doEvaluate

protected Object _doEvaluate(XListLiteral literal,
                 IEvaluationContext context,
                 CancelIndicator indicator)

getJavaType

protected Class<?> getJavaType(JvmType type)
                        throws ClassNotFoundException

Throws:

ClassNotFoundException

_doEvaluate

protected Object _doEvaluate(XSetLiteral literal,
                 IEvaluationContext context,
                 CancelIndicator indicator)

isType

protected boolean isType(XExpression element,
             Class<?> clazz)

resolveType

protected LightweightTypeReference resolveType(XExpression element,
                                   Class<?> clazz)

_doEvaluate

protected Object _doEvaluate(XClosure closure,
                 IEvaluationContext context,
                 CancelIndicator indicator)

_doEvaluate

protected Object _doEvaluate(XBlockExpression literal,
                 IEvaluationContext context,
                 CancelIndicator indicator)

_doEvaluate

protected Object _doEvaluate(XSynchronizedExpression expression,
                 IEvaluationContext context,
                 CancelIndicator indicator)

_doEvaluate

protected Object _doEvaluate(XIfExpression ifExpression,
                 IEvaluationContext context,
                 CancelIndicator indicator)

_doEvaluate

protected Object _doEvaluate(XSwitchExpression switchExpression,
                 IEvaluationContext context,
                 CancelIndicator indicator)

_doEvaluate

protected Object _doEvaluate(XCastedExpression castedExpression,
                 IEvaluationContext context,
                 CancelIndicator indicator)

castToPrimitiveType

protected Object castToPrimitiveType(Object castMe,
                         Primitives.Primitive kind)

_doEvaluate

protected Object _doEvaluate(XThrowExpression throwExpression,
                 IEvaluationContext context,
                 CancelIndicator indicator)

_doEvaluate

protected Object _doEvaluate(XTryCatchFinallyExpression tryCatchFinally,
                 IEvaluationContext context,
                 CancelIndicator indicator)

eq

protected boolean eq(Object a,
         Object b)

throwNullPointerException

protected Object throwNullPointerException(XExpression expression,
                               String message)

Parameters:

expression - may be used by inheritors

throwClassCastException

protected Object throwClassCastException(XExpression expression,
                             Object result,
                             Class<?> expectedType)

Parameters:

expression - may be used by inheritors

wrapOrUnwrapArray

protected Object wrapOrUnwrapArray(Object result,
                       LightweightTypeReference expectedType)

_doEvaluate

protected Object _doEvaluate(XForLoopExpression forLoop,
                 IEvaluationContext context,
                 CancelIndicator indicator)

_doEvaluate

protected Object _doEvaluate(XBasicForLoopExpression forLoop,
                 IEvaluationContext context,
                 CancelIndicator indicator)

_doEvaluate

protected Object _doEvaluate(XWhileExpression whileLoop,
                 IEvaluationContext context,
                 CancelIndicator indicator)

_doEvaluate

protected IEvaluationResult _doEvaluate(XDoWhileExpression doWhileLoop,
                            IEvaluationContext context,
                            CancelIndicator indicator)

_doEvaluate

protected Object _doEvaluate(XConstructorCall constructorCall,
                 IEvaluationContext context,
                 CancelIndicator indicator)

_doEvaluate

protected Object _doEvaluate(XMemberFeatureCall featureCall,
                 IEvaluationContext context,
                 CancelIndicator indicator)

translateJvmTypeToResult

protected Object translateJvmTypeToResult(JvmType type,
                              int arrayDims)

getDefaultObjectValue

protected Object getDefaultObjectValue(LightweightTypeReference type)

_doEvaluate

protected Object _doEvaluate(XInstanceOfExpression instanceOf,
                 IEvaluationContext context,
                 CancelIndicator indicator)

_doEvaluate

protected Object _doEvaluate(XVariableDeclaration variableDecl,
                 IEvaluationContext context,
                 CancelIndicator indicator)

_doEvaluate

protected Object _doEvaluate(XFeatureCall featureCall,
                 IEvaluationContext context,
                 CancelIndicator indicator)

_doEvaluate

protected Object _doEvaluate(XAbstractFeatureCall featureCall,
                 IEvaluationContext context,
                 CancelIndicator indicator)

isGetAndAssign

protected boolean isGetAndAssign(XAbstractFeatureCall featureCall)

evaluateGetAndAssign

protected Object evaluateGetAndAssign(XAbstractFeatureCall featureCall,
                          IEvaluationContext context,
                          CancelIndicator indicator)

applyGetAndAssignOperator

protected Object applyGetAndAssignOperator(Object originalValue,
                               String operatorName)

getActualArguments

protected List<XExpression> getActualArguments(XAbstractFeatureCall featureCall)

getActualReceiver

protected XExpression getActualReceiver(XAbstractFeatureCall featureCall)

invokeFeature

protected Object invokeFeature(JvmIdentifiableElement feature,
                   XAbstractFeatureCall featureCall,
                   Object receiverObj,
                   IEvaluationContext context,
                   CancelIndicator indicator)

_invokeFeature

protected Object _invokeFeature(JvmIdentifiableElement identifiable,
                    XAbstractFeatureCall featureCall,
                    Object receiver,
                    IEvaluationContext context,
                    CancelIndicator indicator)

Parameters:

featureCall - unused in this context but required for dispatching

indicator - unused in this context but required for dispatching

_invokeFeature

protected Object _invokeFeature(JvmField jvmField,
                    XAbstractFeatureCall featureCall,
                    Object receiver,
                    IEvaluationContext context,
                    CancelIndicator indicator)

Parameters:

featureCall - unused in this context but required for dispatching

context - unused in this context but required for dispatching

indicator - unused in this context but required for dispatching

featureCallField

protected Object featureCallField(JvmField jvmField,
                      Object receiver)

_invokeFeature

protected Object _invokeFeature(JvmOperation operation,
                    XAbstractFeatureCall featureCall,
                    Object receiver,
                    IEvaluationContext context,
                    CancelIndicator indicator)

invokeOperation

protected Object invokeOperation(JvmOperation operation,
                     Object receiver,
                     List<Object> argumentValues,
                     IEvaluationContext context,
                     CancelIndicator indicator)

Parameters:

operation - the operation that should be invoked.

receiver - the receiver for the invocation. It may be null which could signal a NullPointerException or be valid if the given operation is a static operation.

argumentValues - the argument values. The number of arguments has to match the number of declared parameters.

context - the current evalutation context.

indicator - the cancel indicator.

Since:

2.3.1

invokeOperation

protected Object invokeOperation(JvmOperation operation,
                     Object receiver,
                     List<Object> argumentValues)

evaluateArgumentExpressions

protected List<Object> evaluateArgumentExpressions(JvmExecutable executable,
                                       List<XExpression> expressions,
                                       IEvaluationContext context,
                                       CancelIndicator indicator)

coerceArgumentType

protected Object coerceArgumentType(Object value,
                        JvmTypeReference expectedType)

_doEvaluate

protected Object _doEvaluate(XAssignment assignment,
                 IEvaluationContext context,
                 CancelIndicator indicator)

assignValueTo

protected Object assignValueTo(JvmIdentifiableElement feature,
                   XAbstractFeatureCall assignment,
                   Object value,
                   IEvaluationContext context,
                   CancelIndicator indicator)

_assignValueTo

protected Object _assignValueTo(XVariableDeclaration variable,
                    XAbstractFeatureCall assignment,
                    Object value,
                    IEvaluationContext context,
                    CancelIndicator indicator)

Parameters:

assignment - unused in this context but required for dispatching

indicator - unused in this context but required for dispatching

_assignValueTo

protected Object _assignValueTo(JvmField jvmField,
                    XAbstractFeatureCall assignment,
                    Object value,
                    IEvaluationContext context,
                    CancelIndicator indicator)

getReceiver

protected Object getReceiver(XAbstractFeatureCall assignment,
                 IEvaluationContext context,
                 CancelIndicator indicator)

_assignValueTo

protected Object _assignValueTo(JvmOperation jvmOperation,
                    XAbstractFeatureCall assignment,
                    Object value,
                    IEvaluationContext context,
                    CancelIndicator indicator)

getClassFinder

protected ClassFinder getClassFinder()

getJavaReflectAccess

protected JavaReflectAccess getJavaReflectAccess()