Class StaticTypeCheckingVisitor
- java.lang.Object
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- org.codehaus.groovy.ast.CodeVisitorSupport
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- org.codehaus.groovy.ast.ClassCodeVisitorSupport
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- org.codehaus.groovy.transform.stc.StaticTypeCheckingVisitor
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- All Implemented Interfaces:
GroovyClassVisitor,GroovyCodeVisitor,ErrorCollecting
- Direct Known Subclasses:
StaticCompilationVisitor
public class StaticTypeCheckingVisitor extends ClassCodeVisitorSupport
The main class code visitor responsible for static type checking. It will perform various inspections like checking assignment types, type inference, ... Eventually, class nodes may be annotated with inferred type information.
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Nested Class Summary
Nested Classes Modifier and Type Class Description static classStaticTypeCheckingVisitor.SignatureCodecFactoryprotected classStaticTypeCheckingVisitor.VariableExpressionTypeMemoizer
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Field Summary
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Constructor Summary
Constructors Constructor Description StaticTypeCheckingVisitor(SourceUnit source, ClassNode classNode)
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods Deprecated Methods Modifier and Type Method Description protected voidaddAmbiguousErrorMessage(java.util.List<MethodNode> foundMethods, java.lang.String name, ClassNode[] args, Expression expr)protected voidaddAssignmentError(ClassNode leftType, ClassNode rightType, Expression assignmentExpression)protected voidaddCategoryMethodCallError(Expression call)protected voidaddClosureReturnType(ClassNode returnType)voidaddError(java.lang.String msg, ASTNode expr)protected voidaddNoMatchingMethodError(ClassNode receiver, java.lang.String name, ClassNode[] args, Expression call)protected voidaddReceivers(java.util.List<Receiver<java.lang.String>> receivers, java.util.Collection<Receiver<java.lang.String>> owners, boolean implicitThis)protected voidaddStaticTypeError(java.lang.String msg, ASTNode expr)voidaddTypeCheckingExtension(TypeCheckingExtension extension)protected voidaddTypeCheckingInfoAnnotation(MethodNode node)protected voidaddUnsupportedPreOrPostfixExpressionError(Expression expression)protected booleanareCategoryMethodCalls(java.util.List<MethodNode> foundMethods, java.lang.String name, ClassNode[] args)protected booleancheckCast(ClassNode targetType, Expression source)protected voidcheckClosureParameters(Expression callArguments, ClassNode receiver)Deprecated.this method is unused, replaced withDelegatesToinference.protected voidcheckForbiddenSpreadArgument(ArgumentListExpression argumentList)protected voidcheckGroovyConstructorMap(Expression receiver, ClassNode receiverType, MapExpression mapExpression)protected voidcheckGroovyStyleConstructor(ClassNode node, ClassNode[] arguments)protected MethodNodecheckGroovyStyleConstructor(ClassNode node, ClassNode[] arguments, ASTNode source)Checks that a constructor style expression is valid regarding the number of arguments and the argument types.protected ClassNodecheckReturnType(ReturnStatement statement)protected voidcollectAllInterfaceMethodsByName(ClassNode type, java.lang.String name, java.util.List<MethodNode> methods)Deprecated.protected booleanexistsProperty(PropertyExpression pexp, boolean checkForReadOnly)protected booleanexistsProperty(PropertyExpression pexp, boolean readMode, ClassCodeVisitorSupport visitor)Checks whether a property exists on the receiver, or on any of the possible receiver classes (found in the temporary type information table)static java.lang.StringextractPropertyNameFromMethodName(java.lang.String prefix, java.lang.String methodName)Given a method name and a prefix, returns the name of the property that should be looked up, following the java beans rules.protected java.lang.ObjectextractTemporaryTypeInfoKey(Expression expression)When instanceof checks are found in the code, we store temporary type information data in theTypeCheckingContext.temporaryIfBranchTypeInformationtable.protected static ClassNode[]extractTypesFromParameters(Parameter[] parameters)protected ClassNodefindCurrentInstanceOfClass(Expression expr, ClassNode type)A helper method which determines which receiver class should be used in error messages when a field or attribute is not found.BinaryExpressionfindInstanceOfNotReturnExpression(IfStatement ifElse)Check IfStatement matched pattern : Object var1; if (!(var1 instanceOf Runnable)){ return } // Here var1 instance of Runnableprotected java.util.List<MethodNode>findMethod(ClassNode receiver, java.lang.String name, ClassNode... args)protected MethodNodefindMethodOrFail(Expression expr, ClassNode receiver, java.lang.String name, ClassNode... args)protected java.util.List<MethodNode>findMethodsWithGenerated(ClassNode receiver, java.lang.String name)This method returns the list of methods named against the supplied parameter that are defined on the specified receiver, but it will also add "non existing" methods that will be generated afterwards by the compiler, for example if a method is using default values and that the specified class node isn't compiled yet.protected static java.lang.StringformatArgumentList(ClassNode[] nodes)protected ClassNode[]getArgumentTypes(ArgumentListExpression args)protected org.codehaus.groovy.transform.stc.DelegationMetadatagetDelegationMetadata(ClosureExpression expression)protected static ClassNodegetGroupOperationResultType(ClassNode a, ClassNode b)protected ClassNodegetInferredReturnType(ASTNode exp)Returns the inferred return type of a closure or a method, if stored on the AST node.protected ClassNodegetInferredReturnTypeFromWithClosureArgument(Expression callArguments)In the case of a Object.with { ...protected ClassNodegetOriginalDeclarationType(Expression lhs)protected ClassNodegetResultType(ClassNode left, int op, ClassNode right, BinaryExpression expr)protected SourceUnitgetSourceUnit()protected java.util.List<ClassNode>getTemporaryTypesForExpression(Expression objectExpression)protected ClassNodegetType(ASTNode exp)protected ClassNode[]getTypeCheckingAnnotations()Returns array of type checking annotations.TypeCheckingContextgetTypeCheckingContext()Returns the current type checking context.protected static booleanhasRHSIncompleteGenericTypeInfo(ClassNode inferredRightExpressionType)Deprecated.protected org.codehaus.groovy.transform.stc.StaticTypeCheckingVisitor.SetterInfohasSetter(PropertyExpression pexp)Deprecated.protected voidinferClosureParameterTypes(ClassNode receiver, Expression arguments, ClosureExpression expression, Parameter target, MethodNode method)Performs type inference on closure argument types whenever code like this is found:foo.collect { it.toUpperCase() }.protected ClassNodeinferComponentType(ClassNode containerType, ClassNode indexType)protected voidinferDiamondType(ConstructorCallExpression cce, ClassNode lType)protected ClassNodeinferListExpressionType(ListExpression list)static ClassNodeinferLoopElementType(ClassNode collectionType)Returns the inferred loop element type given a loop collection type.protected ClassNodeinferMapExpressionType(MapExpression map)protected ClassNodeinferReturnTypeGenerics(ClassNode receiver, MethodNode method, Expression arguments)If a method call returns a parameterized type, then perform additional inference on the return type, so that the type gets actual type arguments.protected ClassNodeinferReturnTypeGenerics(ClassNode receiver, MethodNode method, Expression arguments, GenericsType[] explicitTypeHints)If a method call returns a parameterized type, then perform additional inference on the return type, so that the type gets actual type arguments.voidinitialize()protected static booleanisClassInnerClassOrEqualTo(ClassNode toBeChecked, ClassNode start)protected booleanisClosureCall(java.lang.String name, Expression objectExpression, Expression arguments)protected static booleanisNullConstant(Expression expression)protected booleanisSecondPassNeededForControlStructure(java.util.Map<VariableExpression,ClassNode> varOrigType, java.util.Map<VariableExpression,java.util.List<ClassNode>> oldTracker)booleanisSkipMode(AnnotatedNode node)protected booleanisSkippedInnerClass(AnnotatedNode node)Tests if a node is an inner class node, and if it is, then checks if the enclosing method is skipped.protected java.util.List<Receiver<java.lang.String>>makeOwnerList(Expression objectExpression)Given an object expression (a receiver expression), generate the list of potential receiver types.voidperformSecondPass()protected java.util.Map<VariableExpression,ClassNode>popAssignmentTracking(java.util.Map<VariableExpression,java.util.List<ClassNode>> oldTracker)protected static java.lang.StringprettyPrintMethodList(java.util.List<MethodNode> nodes)protected java.util.Map<VariableExpression,java.util.List<ClassNode>>pushAssignmentTracking()protected voidpushInstanceOfTypeInfo(Expression objectOfInstanceOf, Expression typeExpression)Stores information about types when [objectOfInstanceof instanceof typeExpression] is visited.protected voidrestoreVariableExpressionMetadata(java.util.Map<VariableExpression,ListHashMap> typesBeforeVisit)protected voidsaveVariableExpressionMetadata(java.util.Set<VariableExpression> closureSharedExpressions, java.util.Map<VariableExpression,ListHashMap> typesBeforeVisit)voidsetCompilationUnit(CompilationUnit compilationUnit)voidsetMethodsToBeVisited(java.util.Set<MethodNode> methodsToBeVisited)protected booleanshouldSkipClassNode(ClassNode node)protected booleanshouldSkipMethodNode(MethodNode node)protected voidsilentlyVisitMethodNode(MethodNode directMethodCallCandidate)visit a method call target, to infer the type.protected voidstartMethodInference(MethodNode node, ErrorCollector collector)protected ClassNodestoreInferredReturnType(ASTNode node, ClassNode type)Stores the inferred return type of a closure or a method.protected voidstoreInferredTypeForPropertyExpression(PropertyExpression pexp, ClassNode flatInferredType)protected voidstoreTargetMethod(Expression call, MethodNode directMethodCallCandidate)protected voidstoreType(Expression exp, ClassNode cn)protected voidtypeCheckAssignment(BinaryExpression assignmentExpression, Expression leftExpression, ClassNode leftExpressionType, Expression rightExpression, ClassNode rightExpressionType)protected voidtypeCheckClosureCall(Expression arguments, ClassNode[] argumentTypes, Parameter[] parameters)protected MethodNodetypeCheckMapConstructor(ConstructorCallExpression call, ClassNode receiver, Expression arguments)protected booleantypeCheckMethodsWithGenericsOrFail(ClassNode receiver, ClassNode[] arguments, MethodNode candidateMethod, Expression location)voidvisitArrayExpression(ArrayExpression expression)voidvisitAttributeExpression(AttributeExpression expression)voidvisitBinaryExpression(BinaryExpression expression)voidvisitBitwiseNegationExpression(BitwiseNegationExpression expression)voidvisitBlockStatement(BlockStatement block)voidvisitCaseStatement(CaseStatement statement)voidvisitCastExpression(CastExpression expression)voidvisitClass(ClassNode node)Visit a ClassNode.voidvisitClassExpression(ClassExpression expression)voidvisitClosingBlock(BlockStatement block)voidvisitClosureExpression(ClosureExpression expression)voidvisitConstructor(ConstructorNode node)Visit a ConstructorNode.voidvisitConstructorCallExpression(ConstructorCallExpression call)protected voidvisitConstructorOrMethod(MethodNode node, boolean isConstructor)voidvisitExpressionStatement(ExpressionStatement statement)voidvisitField(FieldNode node)Visit a FieldNode.voidvisitForLoop(ForStatement forLoop)voidvisitIfElse(IfStatement ifElse)voidvisitInstanceofNot(BinaryExpression be)voidvisitMethod(MethodNode node)Visit a MethodNode.protected voidvisitMethodCallArguments(ClassNode receiver, ArgumentListExpression arguments, boolean visitClosures, MethodNode selectedMethod)voidvisitMethodCallExpression(MethodCallExpression call)voidvisitMethodPointerExpression(MethodPointerExpression expression)voidvisitNotExpression(NotExpression expression)voidvisitPostfixExpression(PostfixExpression expression)voidvisitPrefixExpression(PrefixExpression expression)voidvisitProperty(PropertyNode node)Visit a PropertyNode.voidvisitPropertyExpression(PropertyExpression pexp)voidvisitRangeExpression(RangeExpression expression)voidvisitReturnStatement(ReturnStatement statement)voidvisitStaticMethodCallExpression(StaticMethodCallExpression call)voidvisitSwitch(SwitchStatement statement)voidvisitTernaryExpression(TernaryExpression expression)voidvisitTryCatchFinally(TryCatchStatement statement)voidvisitUnaryMinusExpression(UnaryMinusExpression expression)voidvisitUnaryPlusExpression(UnaryPlusExpression expression)voidvisitVariableExpression(VariableExpression vexp)voidvisitWhileLoop(WhileStatement loop)protected static ClassNodewrapTypeIfNecessary(ClassNode type)Returns a wrapped type if, and only if, the provided class node is a primitive type.-
Methods inherited from class org.codehaus.groovy.ast.ClassCodeVisitorSupport
visitAnnotations, visitAssertStatement, visitBreakStatement, visitCatchStatement, visitClassCodeContainer, visitContinueStatement, visitDeclarationExpression, visitDoWhileLoop, visitImports, visitObjectInitializerStatements, visitPackage, visitStatement, visitSynchronizedStatement, visitThrowStatement
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Methods inherited from class org.codehaus.groovy.ast.CodeVisitorSupport
visitArgumentlistExpression, visitBooleanExpression, visitBytecodeExpression, visitClosureListExpression, visitConstantExpression, visitEmptyStatement, visitFieldExpression, visitGStringExpression, visitListExpression, visitListOfExpressions, visitMapEntryExpression, visitMapExpression, visitShortTernaryExpression, visitSpreadExpression, visitSpreadMapExpression, visitTupleExpression
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Field Detail
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ERROR_COLLECTOR
protected static final java.lang.Object ERROR_COLLECTOR
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EMPTY_METHODNODE_LIST
protected static final java.util.List<MethodNode> EMPTY_METHODNODE_LIST
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TYPECHECKED_CLASSNODE
protected static final ClassNode TYPECHECKED_CLASSNODE
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TYPECHECKING_ANNOTATIONS
protected static final ClassNode[] TYPECHECKING_ANNOTATIONS
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TYPECHECKING_INFO_NODE
protected static final ClassNode TYPECHECKING_INFO_NODE
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DGM_CLASSNODE
protected static final ClassNode DGM_CLASSNODE
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CURRENT_SIGNATURE_PROTOCOL_VERSION
protected static final int CURRENT_SIGNATURE_PROTOCOL_VERSION
- See Also:
- Constant Field Values
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CURRENT_SIGNATURE_PROTOCOL
protected static final Expression CURRENT_SIGNATURE_PROTOCOL
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GET_DELEGATE
protected static final MethodNode GET_DELEGATE
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GET_OWNER
protected static final MethodNode GET_OWNER
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GET_THISOBJECT
protected static final MethodNode GET_THISOBJECT
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DELEGATES_TO
protected static final ClassNode DELEGATES_TO
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DELEGATES_TO_TARGET
protected static final ClassNode DELEGATES_TO_TARGET
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CLOSUREPARAMS_CLASSNODE
protected static final ClassNode CLOSUREPARAMS_CLASSNODE
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NAMED_PARAMS_CLASSNODE
protected static final ClassNode NAMED_PARAMS_CLASSNODE
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LINKEDHASHMAP_CLASSNODE
protected static final ClassNode LINKEDHASHMAP_CLASSNODE
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ENUMERATION_TYPE
protected static final ClassNode ENUMERATION_TYPE
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MAP_ENTRY_TYPE
protected static final ClassNode MAP_ENTRY_TYPE
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ITERABLE_TYPE
protected static final ClassNode ITERABLE_TYPE
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GENERATED_EMPTY_STATEMENT
public static final Statement GENERATED_EMPTY_STATEMENT
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CLOSURE_CALL_NO_ARG
public static final MethodNode CLOSURE_CALL_NO_ARG
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CLOSURE_CALL_ONE_ARG
public static final MethodNode CLOSURE_CALL_ONE_ARG
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CLOSURE_CALL_VARGS
public static final MethodNode CLOSURE_CALL_VARGS
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returnListener
protected final ReturnAdder.ReturnStatementListener returnListener
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returnAdder
protected final ReturnAdder returnAdder
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currentField
protected FieldNode currentField
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currentProperty
protected PropertyNode currentProperty
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extension
protected DefaultTypeCheckingExtension extension
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typeCheckingContext
protected TypeCheckingContext typeCheckingContext
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Constructor Detail
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StaticTypeCheckingVisitor
public StaticTypeCheckingVisitor(SourceUnit source, ClassNode classNode)
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Method Detail
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getSourceUnit
protected SourceUnit getSourceUnit()
- Specified by:
getSourceUnitin classClassCodeVisitorSupport
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initialize
public void initialize()
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getTypeCheckingContext
public TypeCheckingContext getTypeCheckingContext()
Returns the current type checking context. The context is used internally by the type checker during type checking to store various state data.- Returns:
- the type checking context
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addTypeCheckingExtension
public void addTypeCheckingExtension(TypeCheckingExtension extension)
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setCompilationUnit
public void setCompilationUnit(CompilationUnit compilationUnit)
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visitClass
public void visitClass(ClassNode node)
Description copied from interface:GroovyClassVisitorVisit a ClassNode.- Specified by:
visitClassin interfaceGroovyClassVisitor- Overrides:
visitClassin classClassCodeVisitorSupport
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getTypeCheckingAnnotations
protected ClassNode[] getTypeCheckingAnnotations()
Returns array of type checking annotations. Subclasses may override this method in order to provide additional types which must be looked up when checking if a method or a class node should be skipped.The default implementation returns
TypeChecked.
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shouldSkipClassNode
protected boolean shouldSkipClassNode(ClassNode node)
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isSkipMode
public boolean isSkipMode(AnnotatedNode node)
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isSkippedInnerClass
protected boolean isSkippedInnerClass(AnnotatedNode node)
Tests if a node is an inner class node, and if it is, then checks if the enclosing method is skipped.- Returns:
- true if the inner class node should be skipped
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visitClassExpression
public void visitClassExpression(ClassExpression expression)
- Specified by:
visitClassExpressionin interfaceGroovyCodeVisitor- Overrides:
visitClassExpressionin classCodeVisitorSupport
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visitVariableExpression
public void visitVariableExpression(VariableExpression vexp)
- Specified by:
visitVariableExpressionin interfaceGroovyCodeVisitor- Overrides:
visitVariableExpressionin classCodeVisitorSupport
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visitPropertyExpression
public void visitPropertyExpression(PropertyExpression pexp)
- Specified by:
visitPropertyExpressionin interfaceGroovyCodeVisitor- Overrides:
visitPropertyExpressionin classCodeVisitorSupport
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visitAttributeExpression
public void visitAttributeExpression(AttributeExpression expression)
- Specified by:
visitAttributeExpressionin interfaceGroovyCodeVisitor- Overrides:
visitAttributeExpressionin classCodeVisitorSupport
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visitRangeExpression
public void visitRangeExpression(RangeExpression expression)
- Specified by:
visitRangeExpressionin interfaceGroovyCodeVisitor- Overrides:
visitRangeExpressionin classCodeVisitorSupport
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visitNotExpression
public void visitNotExpression(NotExpression expression)
- Specified by:
visitNotExpressionin interfaceGroovyCodeVisitor- Overrides:
visitNotExpressionin classCodeVisitorSupport
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visitBinaryExpression
public void visitBinaryExpression(BinaryExpression expression)
- Specified by:
visitBinaryExpressionin interfaceGroovyCodeVisitor- Overrides:
visitBinaryExpressionin classCodeVisitorSupport
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getOriginalDeclarationType
protected ClassNode getOriginalDeclarationType(Expression lhs)
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inferDiamondType
protected void inferDiamondType(ConstructorCallExpression cce, ClassNode lType)
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pushInstanceOfTypeInfo
protected void pushInstanceOfTypeInfo(Expression objectOfInstanceOf, Expression typeExpression)
Stores information about types when [objectOfInstanceof instanceof typeExpression] is visited.- Parameters:
objectOfInstanceOf- the expression which must be checked against instanceoftypeExpression- the expression which represents the target type
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typeCheckAssignment
protected void typeCheckAssignment(BinaryExpression assignmentExpression, Expression leftExpression, ClassNode leftExpressionType, Expression rightExpression, ClassNode rightExpressionType)
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checkGroovyConstructorMap
protected void checkGroovyConstructorMap(Expression receiver, ClassNode receiverType, MapExpression mapExpression)
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hasRHSIncompleteGenericTypeInfo
@Deprecated protected static boolean hasRHSIncompleteGenericTypeInfo(ClassNode inferredRightExpressionType)
Deprecated.
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checkGroovyStyleConstructor
@Deprecated protected void checkGroovyStyleConstructor(ClassNode node, ClassNode[] arguments)
Deprecated.Checks that a constructor style expression is valid regarding the number of arguments and the argument types.- Parameters:
node- the class node for which we will try to find a matching constructorarguments- the constructor arguments
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checkGroovyStyleConstructor
protected MethodNode checkGroovyStyleConstructor(ClassNode node, ClassNode[] arguments, ASTNode source)
Checks that a constructor style expression is valid regarding the number of arguments and the argument types.- Parameters:
node- the class node for which we will try to find a matching constructorarguments- the constructor arguments
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extractTemporaryTypeInfoKey
protected java.lang.Object extractTemporaryTypeInfoKey(Expression expression)
When instanceof checks are found in the code, we store temporary type information data in theTypeCheckingContext.temporaryIfBranchTypeInformationtable. This method computes the key which must be used to store this type info.- Parameters:
expression- the expression for which to compute the key- Returns:
- a key to be used for
TypeCheckingContext.temporaryIfBranchTypeInformation
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findCurrentInstanceOfClass
protected ClassNode findCurrentInstanceOfClass(Expression expr, ClassNode type)
A helper method which determines which receiver class should be used in error messages when a field or attribute is not found. The returned type class depends on whether we have temporary type information available (due to instanceof checks) and whether there is a single candidate in that case.- Parameters:
expr- the expression for which an unknown field has been foundtype- the type of the expression (used as fallback type)- Returns:
- if temporary information is available and there's only one type, returns the temporary type class otherwise falls back to the provided type class.
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existsProperty
protected boolean existsProperty(PropertyExpression pexp, boolean checkForReadOnly)
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existsProperty
protected boolean existsProperty(PropertyExpression pexp, boolean readMode, ClassCodeVisitorSupport visitor)
Checks whether a property exists on the receiver, or on any of the possible receiver classes (found in the temporary type information table)- Parameters:
pexp- a property expressionreadMode- if true, look for property read, else for property setvisitor- if not null, when the property node is found, visit it with the provided visitor- Returns:
- true if the property is defined in any of the possible receiver classes
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storeInferredTypeForPropertyExpression
protected void storeInferredTypeForPropertyExpression(PropertyExpression pexp, ClassNode flatInferredType)
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hasSetter
@Deprecated protected org.codehaus.groovy.transform.stc.StaticTypeCheckingVisitor.SetterInfo hasSetter(PropertyExpression pexp)
Deprecated.
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visitProperty
public void visitProperty(PropertyNode node)
Description copied from interface:GroovyClassVisitorVisit a PropertyNode.- Specified by:
visitPropertyin interfaceGroovyClassVisitor- Overrides:
visitPropertyin classClassCodeVisitorSupport
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visitField
public void visitField(FieldNode node)
Description copied from interface:GroovyClassVisitorVisit a FieldNode.- Specified by:
visitFieldin interfaceGroovyClassVisitor- Overrides:
visitFieldin classClassCodeVisitorSupport
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visitForLoop
public void visitForLoop(ForStatement forLoop)
- Specified by:
visitForLoopin interfaceGroovyCodeVisitor- Overrides:
visitForLoopin classClassCodeVisitorSupport
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inferLoopElementType
public static ClassNode inferLoopElementType(ClassNode collectionType)
Returns the inferred loop element type given a loop collection type. Used, for example, to infer the element type of afor (e in list)loop.- Parameters:
collectionType- the type of the collection- Returns:
- the inferred component type
- See Also:
inferComponentType(org.codehaus.groovy.ast.ClassNode, org.codehaus.groovy.ast.ClassNode)
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isSecondPassNeededForControlStructure
protected boolean isSecondPassNeededForControlStructure(java.util.Map<VariableExpression,ClassNode> varOrigType, java.util.Map<VariableExpression,java.util.List<ClassNode>> oldTracker)
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visitWhileLoop
public void visitWhileLoop(WhileStatement loop)
- Specified by:
visitWhileLoopin interfaceGroovyCodeVisitor- Overrides:
visitWhileLoopin classClassCodeVisitorSupport
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visitBitwiseNegationExpression
public void visitBitwiseNegationExpression(BitwiseNegationExpression expression)
- Specified by:
visitBitwiseNegationExpressionin interfaceGroovyCodeVisitor- Overrides:
visitBitwiseNegationExpressionin classCodeVisitorSupport
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visitUnaryPlusExpression
public void visitUnaryPlusExpression(UnaryPlusExpression expression)
- Specified by:
visitUnaryPlusExpressionin interfaceGroovyCodeVisitor- Overrides:
visitUnaryPlusExpressionin classCodeVisitorSupport
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visitUnaryMinusExpression
public void visitUnaryMinusExpression(UnaryMinusExpression expression)
- Specified by:
visitUnaryMinusExpressionin interfaceGroovyCodeVisitor- Overrides:
visitUnaryMinusExpressionin classCodeVisitorSupport
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visitPostfixExpression
public void visitPostfixExpression(PostfixExpression expression)
- Specified by:
visitPostfixExpressionin interfaceGroovyCodeVisitor- Overrides:
visitPostfixExpressionin classCodeVisitorSupport
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visitPrefixExpression
public void visitPrefixExpression(PrefixExpression expression)
- Specified by:
visitPrefixExpressionin interfaceGroovyCodeVisitor- Overrides:
visitPrefixExpressionin classCodeVisitorSupport
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visitConstructorOrMethod
protected void visitConstructorOrMethod(MethodNode node, boolean isConstructor)
- Overrides:
visitConstructorOrMethodin classClassCodeVisitorSupport
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visitExpressionStatement
public void visitExpressionStatement(ExpressionStatement statement)
- Specified by:
visitExpressionStatementin interfaceGroovyCodeVisitor- Overrides:
visitExpressionStatementin classClassCodeVisitorSupport
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visitReturnStatement
public void visitReturnStatement(ReturnStatement statement)
- Specified by:
visitReturnStatementin interfaceGroovyCodeVisitor- Overrides:
visitReturnStatementin classClassCodeVisitorSupport
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checkReturnType
protected ClassNode checkReturnType(ReturnStatement statement)
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addClosureReturnType
protected void addClosureReturnType(ClassNode returnType)
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visitConstructorCallExpression
public void visitConstructorCallExpression(ConstructorCallExpression call)
- Specified by:
visitConstructorCallExpressionin interfaceGroovyCodeVisitor- Overrides:
visitConstructorCallExpressionin classCodeVisitorSupport
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typeCheckMapConstructor
protected MethodNode typeCheckMapConstructor(ConstructorCallExpression call, ClassNode receiver, Expression arguments)
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getArgumentTypes
protected ClassNode[] getArgumentTypes(ArgumentListExpression args)
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visitClosureExpression
public void visitClosureExpression(ClosureExpression expression)
- Specified by:
visitClosureExpressionin interfaceGroovyCodeVisitor- Overrides:
visitClosureExpressionin classCodeVisitorSupport
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visitMethodPointerExpression
public void visitMethodPointerExpression(MethodPointerExpression expression)
- Specified by:
visitMethodPointerExpressionin interfaceGroovyCodeVisitor- Overrides:
visitMethodPointerExpressionin classCodeVisitorSupport
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getDelegationMetadata
protected org.codehaus.groovy.transform.stc.DelegationMetadata getDelegationMetadata(ClosureExpression expression)
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restoreVariableExpressionMetadata
protected void restoreVariableExpressionMetadata(java.util.Map<VariableExpression,ListHashMap> typesBeforeVisit)
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saveVariableExpressionMetadata
protected void saveVariableExpressionMetadata(java.util.Set<VariableExpression> closureSharedExpressions, java.util.Map<VariableExpression,ListHashMap> typesBeforeVisit)
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shouldSkipMethodNode
protected boolean shouldSkipMethodNode(MethodNode node)
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visitMethod
public void visitMethod(MethodNode node)
Description copied from interface:GroovyClassVisitorVisit a MethodNode.- Specified by:
visitMethodin interfaceGroovyClassVisitor- Overrides:
visitMethodin classClassCodeVisitorSupport
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visitConstructor
public void visitConstructor(ConstructorNode node)
Description copied from interface:GroovyClassVisitorVisit a ConstructorNode.- Specified by:
visitConstructorin interfaceGroovyClassVisitor- Overrides:
visitConstructorin classClassCodeVisitorSupport
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startMethodInference
protected void startMethodInference(MethodNode node, ErrorCollector collector)
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addTypeCheckingInfoAnnotation
protected void addTypeCheckingInfoAnnotation(MethodNode node)
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visitStaticMethodCallExpression
public void visitStaticMethodCallExpression(StaticMethodCallExpression call)
- Specified by:
visitStaticMethodCallExpressionin interfaceGroovyCodeVisitor- Overrides:
visitStaticMethodCallExpressionin classCodeVisitorSupport
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checkClosureParameters
@Deprecated protected void checkClosureParameters(Expression callArguments, ClassNode receiver)
Deprecated.this method is unused, replaced withDelegatesToinference.
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silentlyVisitMethodNode
protected void silentlyVisitMethodNode(MethodNode directMethodCallCandidate)
visit a method call target, to infer the type. Don't report errors right away, that will be done by a later visitMethod call
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visitMethodCallArguments
protected void visitMethodCallArguments(ClassNode receiver, ArgumentListExpression arguments, boolean visitClosures, MethodNode selectedMethod)
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inferClosureParameterTypes
protected void inferClosureParameterTypes(ClassNode receiver, Expression arguments, ClosureExpression expression, Parameter target, MethodNode method)
Performs type inference on closure argument types whenever code like this is found:foo.collect { it.toUpperCase() }.In this case the type checker tries to find if the
collectmethod has itsClosureargument annotated withClosureParams. If so, then additional type inference can be performed and the type ofitmay be inferred.- Parameters:
receiver-arguments-expression- closure or lambda expression for which the argument types should be inferredtarget- parameter which may provideClosureParamsannotation or SAM typemethod- method that declarestarget
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addReceivers
protected void addReceivers(java.util.List<Receiver<java.lang.String>> receivers, java.util.Collection<Receiver<java.lang.String>> owners, boolean implicitThis)
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visitMethodCallExpression
public void visitMethodCallExpression(MethodCallExpression call)
- Specified by:
visitMethodCallExpressionin interfaceGroovyCodeVisitor- Overrides:
visitMethodCallExpressionin classCodeVisitorSupport
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getInferredReturnTypeFromWithClosureArgument
protected ClassNode getInferredReturnTypeFromWithClosureArgument(Expression callArguments)
In the case of a Object.with { ... } call, this method is supposed to retrieve the inferred closure return type.- Parameters:
callArguments- the argument list from the Object#with(Closure) call, ie. a single closure expression- Returns:
- the inferred closure return type or null
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makeOwnerList
protected java.util.List<Receiver<java.lang.String>> makeOwnerList(Expression objectExpression)
Given an object expression (a receiver expression), generate the list of potential receiver types.- Parameters:
objectExpression- the receiver expression- Returns:
- the list of types the receiver may be
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checkForbiddenSpreadArgument
protected void checkForbiddenSpreadArgument(ArgumentListExpression argumentList)
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getTemporaryTypesForExpression
protected java.util.List<ClassNode> getTemporaryTypesForExpression(Expression objectExpression)
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storeTargetMethod
protected void storeTargetMethod(Expression call, MethodNode directMethodCallCandidate)
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isClosureCall
protected boolean isClosureCall(java.lang.String name, Expression objectExpression, Expression arguments)
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typeCheckClosureCall
protected void typeCheckClosureCall(Expression arguments, ClassNode[] argumentTypes, Parameter[] parameters)
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visitIfElse
public void visitIfElse(IfStatement ifElse)
- Specified by:
visitIfElsein interfaceGroovyCodeVisitor- Overrides:
visitIfElsein classClassCodeVisitorSupport
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visitInstanceofNot
public void visitInstanceofNot(BinaryExpression be)
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visitBlockStatement
public void visitBlockStatement(BlockStatement block)
- Specified by:
visitBlockStatementin interfaceGroovyCodeVisitor- Overrides:
visitBlockStatementin classClassCodeVisitorSupport
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visitClosingBlock
public void visitClosingBlock(BlockStatement block)
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findInstanceOfNotReturnExpression
public BinaryExpression findInstanceOfNotReturnExpression(IfStatement ifElse)
Check IfStatement matched pattern : Object var1; if (!(var1 instanceOf Runnable)){ return } // Here var1 instance of RunnableReturn expression , which contains instanceOf (without not) Return null, if not found
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visitSwitch
public void visitSwitch(SwitchStatement statement)
- Specified by:
visitSwitchin interfaceGroovyCodeVisitor- Overrides:
visitSwitchin classClassCodeVisitorSupport
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visitCaseStatement
public void visitCaseStatement(CaseStatement statement)
- Specified by:
visitCaseStatementin interfaceGroovyCodeVisitor- Overrides:
visitCaseStatementin classClassCodeVisitorSupport
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popAssignmentTracking
protected java.util.Map<VariableExpression,ClassNode> popAssignmentTracking(java.util.Map<VariableExpression,java.util.List<ClassNode>> oldTracker)
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pushAssignmentTracking
protected java.util.Map<VariableExpression,java.util.List<ClassNode>> pushAssignmentTracking()
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visitArrayExpression
public void visitArrayExpression(ArrayExpression expression)
- Specified by:
visitArrayExpressionin interfaceGroovyCodeVisitor- Overrides:
visitArrayExpressionin classCodeVisitorSupport
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visitCastExpression
public void visitCastExpression(CastExpression expression)
- Specified by:
visitCastExpressionin interfaceGroovyCodeVisitor- Overrides:
visitCastExpressionin classCodeVisitorSupport
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checkCast
protected boolean checkCast(ClassNode targetType, Expression source)
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visitTernaryExpression
public void visitTernaryExpression(TernaryExpression expression)
- Specified by:
visitTernaryExpressionin interfaceGroovyCodeVisitor- Overrides:
visitTernaryExpressionin classCodeVisitorSupport
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visitTryCatchFinally
public void visitTryCatchFinally(TryCatchStatement statement)
- Specified by:
visitTryCatchFinallyin interfaceGroovyCodeVisitor- Overrides:
visitTryCatchFinallyin classClassCodeVisitorSupport
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storeType
protected void storeType(Expression exp, ClassNode cn)
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getResultType
protected ClassNode getResultType(ClassNode left, int op, ClassNode right, BinaryExpression expr)
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getGroupOperationResultType
protected static ClassNode getGroupOperationResultType(ClassNode a, ClassNode b)
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inferComponentType
protected ClassNode inferComponentType(ClassNode containerType, ClassNode indexType)
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findMethodOrFail
protected MethodNode findMethodOrFail(Expression expr, ClassNode receiver, java.lang.String name, ClassNode... args)
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prettyPrintMethodList
protected static java.lang.String prettyPrintMethodList(java.util.List<MethodNode> nodes)
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areCategoryMethodCalls
protected boolean areCategoryMethodCalls(java.util.List<MethodNode> foundMethods, java.lang.String name, ClassNode[] args)
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findMethodsWithGenerated
protected java.util.List<MethodNode> findMethodsWithGenerated(ClassNode receiver, java.lang.String name)
This method returns the list of methods named against the supplied parameter that are defined on the specified receiver, but it will also add "non existing" methods that will be generated afterwards by the compiler, for example if a method is using default values and that the specified class node isn't compiled yet.- Parameters:
receiver- the receiver where to find methodsname- the name of the methods to return- Returns:
- the methods that are defined on the receiver completed with stubs for future methods
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findMethod
protected java.util.List<MethodNode> findMethod(ClassNode receiver, java.lang.String name, ClassNode... args)
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extractPropertyNameFromMethodName
public static java.lang.String extractPropertyNameFromMethodName(java.lang.String prefix, java.lang.String methodName)Given a method name and a prefix, returns the name of the property that should be looked up, following the java beans rules. For example, "getName" would return "name", while "getFullName" would return "fullName". If the prefix is not found, returns null.- Parameters:
prefix- the method name prefix ("get", "is", "set", ...)methodName- the method name- Returns:
- a property name if the prefix is found and the method matches the java beans rules, null otherwise
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collectAllInterfaceMethodsByName
@Deprecated protected void collectAllInterfaceMethodsByName(ClassNode type, java.lang.String name, java.util.List<MethodNode> methods)
Deprecated.
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storeInferredReturnType
protected ClassNode storeInferredReturnType(ASTNode node, ClassNode type)
Stores the inferred return type of a closure or a method. We are using a separate key to store inferred return type because the inferred type of a closure isClosure, which is different from the inferred type of the code of the closure.- Parameters:
node- aClosureExpressionor aMethodNodetype- the inferred return type of the code- Returns:
- the old value of the inferred type
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getInferredReturnType
protected ClassNode getInferredReturnType(ASTNode exp)
Returns the inferred return type of a closure or a method, if stored on the AST node. This method doesn't perform any type inference by itself.- Parameters:
exp- aClosureExpressionorMethodNode- Returns:
- the inferred type, as stored on node metadata.
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inferListExpressionType
protected ClassNode inferListExpressionType(ListExpression list)
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isNullConstant
protected static boolean isNullConstant(Expression expression)
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inferMapExpressionType
protected ClassNode inferMapExpressionType(MapExpression map)
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inferReturnTypeGenerics
protected ClassNode inferReturnTypeGenerics(ClassNode receiver, MethodNode method, Expression arguments)
If a method call returns a parameterized type, then perform additional inference on the return type, so that the type gets actual type arguments. For example, the methodArrays.asList(T...)is parameterized withT, which can be deduced type arguments or call arguments.- Parameters:
method- the method nodearguments- the method call argumentsreceiver- the object expression type
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inferReturnTypeGenerics
protected ClassNode inferReturnTypeGenerics(ClassNode receiver, MethodNode method, Expression arguments, GenericsType[] explicitTypeHints)
If a method call returns a parameterized type, then perform additional inference on the return type, so that the type gets actual type arguments. For example, the methodArrays.asList(T...)is parameterized withT, which can be deduced type arguments or call arguments.- Parameters:
method- the method nodearguments- the method call argumentsreceiver- the object expression typeexplicitTypeHints- type arguments (optional), for exampleCollections.<String>emptyList()
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typeCheckMethodsWithGenericsOrFail
protected boolean typeCheckMethodsWithGenericsOrFail(ClassNode receiver, ClassNode[] arguments, MethodNode candidateMethod, Expression location)
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formatArgumentList
protected static java.lang.String formatArgumentList(ClassNode[] nodes)
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addError
public void addError(java.lang.String msg, ASTNode expr)- Specified by:
addErrorin interfaceErrorCollecting- Overrides:
addErrorin classClassCodeVisitorSupport
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addStaticTypeError
protected void addStaticTypeError(java.lang.String msg, ASTNode expr)
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addNoMatchingMethodError
protected void addNoMatchingMethodError(ClassNode receiver, java.lang.String name, ClassNode[] args, Expression call)
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addAmbiguousErrorMessage
protected void addAmbiguousErrorMessage(java.util.List<MethodNode> foundMethods, java.lang.String name, ClassNode[] args, Expression expr)
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addCategoryMethodCallError
protected void addCategoryMethodCallError(Expression call)
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addAssignmentError
protected void addAssignmentError(ClassNode leftType, ClassNode rightType, Expression assignmentExpression)
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addUnsupportedPreOrPostfixExpressionError
protected void addUnsupportedPreOrPostfixExpressionError(Expression expression)
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setMethodsToBeVisited
public void setMethodsToBeVisited(java.util.Set<MethodNode> methodsToBeVisited)
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performSecondPass
public void performSecondPass()
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extractTypesFromParameters
protected static ClassNode[] extractTypesFromParameters(Parameter[] parameters)
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wrapTypeIfNecessary
protected static ClassNode wrapTypeIfNecessary(ClassNode type)
Returns a wrapped type if, and only if, the provided class node is a primitive type. This method differs fromClassHelper.getWrapper(org.codehaus.groovy.ast.ClassNode)as it will return the same instance if the provided type is not a generic type.- Returns:
- the wrapped type
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