Class StaticTypeCheckingVisitor
java.lang.Object
org.codehaus.groovy.ast.CodeVisitorSupport
org.codehaus.groovy.ast.ClassCodeVisitorSupport
org.codehaus.groovy.transform.stc.StaticTypeCheckingVisitor
- 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 SummaryNested Classes Modifier and Type Class Description static classStaticTypeCheckingVisitor.SignatureCodecFactoryprotected classStaticTypeCheckingVisitor.VariableExpressionTypeMemoizer
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Field Summary
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Constructor SummaryConstructors Constructor Description StaticTypeCheckingVisitor(SourceUnit source, ClassNode classNode)
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Method SummaryModifier 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 expression)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 voidafterSwitchConditionExpressionVisited(SwitchStatement statement)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.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 origin)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)Computes the key to use forTypeCheckingContext.temporaryIfBranchTypeInformation.protected static ClassNode[]extractTypesFromParameters(Parameter[] parameters)protected ClassNodefindCurrentInstanceOfClass(Expression expression, ClassNode type)A helper method which determines which receiver class should be used in error messages when a field or attribute is not found.protected BinaryExpressionfindInstanceOfNotReturnExpression(IfStatement ifElse)Deprecated.protected 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)Returns methods defined for the specified receiver and adds "non-existing" methods that will be generated afterwards by the compiler; for example if a method is using default values and the class node isn't compiled yet.protected BinaryExpressionfindNotInstanceOfReturnExpression(IfStatement ifElse)Deprecated.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 node)Returns the inferred return type of a closure or 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 expression)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 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)Deprecated.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 static booleanisSuperExpression(Expression expression)protected static booleanisThisExpression(Expression expression)protected java.util.List<Receiver<java.lang.String>>makeOwnerList(Expression objectExpression)Given an object expression (a message receiver expression), generate list of possible 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,java.util.Map<StaticTypesMarker,java.lang.Object>> typesBeforeVisit)protected voidsaveVariableExpressionMetadata(java.util.Set<VariableExpression> closureSharedExpressions, java.util.Map<VariableExpression,java.util.Map<StaticTypesMarker,java.lang.Object>> typesBeforeVisit)voidsetCompilationUnit(CompilationUnit compilationUnit)voidsetMethodsToBeVisited(java.util.Set<MethodNode> methodsToBeVisited)protected booleanshouldSkipClassNode(ClassNode node)protected booleanshouldSkipMethodNode(MethodNode node)protected voidsilentlyVisitMethodNode(MethodNode directMethodCallCandidate)Visits 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)Deprecated.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)Deprecated.voidvisitCaseStatement(CaseStatement statement)voidvisitCastExpression(CastExpression expression)voidvisitClass(ClassNode node)Visit a ClassNode.voidvisitClassExpression(ClassExpression expression)voidvisitClosingBlock(BlockStatement block)Deprecated.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)protected voidvisitInstanceofNot(BinaryExpression be)Deprecated.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)protected voidvisitObjectInitializerStatements(ClassNode node)voidvisitPostfixExpression(PostfixExpression expression)voidvisitPrefixExpression(PrefixExpression expression)voidvisitProperty(PropertyNode node)Visit a PropertyNode.voidvisitPropertyExpression(PropertyExpression expression)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.ClassCodeVisitorSupportvisitAnnotation, visitAnnotations, visitAssertStatement, visitBreakStatement, visitCatchStatement, visitClassCodeContainer, visitContinueStatement, visitDeclarationExpression, visitDoWhileLoop, visitImports, visitPackage, visitStatement, visitSynchronizedStatement, visitThrowStatementMethods inherited from class org.codehaus.groovy.ast.CodeVisitorSupportvisitArgumentlistExpression, visitBooleanExpression, visitBytecodeExpression, visitClosureListExpression, visitConstantExpression, visitEmptyStatement, visitFieldExpression, visitGStringExpression, visitLambdaExpression, visitListExpression, visitMapEntryExpression, visitMapExpression, visitMethodReferenceExpression, visitShortTernaryExpression, visitSpreadExpression, visitSpreadMapExpression, visitTupleExpressionMethods inherited from class java.lang.Objectclone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, waitMethods inherited from interface org.codehaus.groovy.ast.GroovyCodeVisitorvisitEmptyExpression, visitListOfExpressions
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Field Details- 
ERROR_COLLECTORprotected static final java.lang.Object ERROR_COLLECTOR
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EMPTY_METHODNODE_LIST
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TYPECHECKED_CLASSNODE
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TYPECHECKING_ANNOTATIONS
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TYPECHECKING_INFO_NODE
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DGM_CLASSNODE
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CURRENT_SIGNATURE_PROTOCOL_VERSIONprotected static final int CURRENT_SIGNATURE_PROTOCOL_VERSION- See Also:
- Constant Field Values
 
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CURRENT_SIGNATURE_PROTOCOL
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GET_DELEGATE
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GET_OWNER
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GET_THISOBJECT
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DELEGATES_TO
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DELEGATES_TO_TARGET
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CLOSUREPARAMS_CLASSNODE
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NAMED_PARAMS_CLASSNODE
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NAMED_PARAM_CLASSNODE
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LINKEDHASHMAP_CLASSNODEDeprecated.
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ENUMERATION_TYPE
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MAP_ENTRY_TYPE
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ITERABLE_TYPE
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CLOSURE_CALL_NO_ARG
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CLOSURE_CALL_ONE_ARG
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CLOSURE_CALL_VARGS
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GENERATED_EMPTY_STATEMENT
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returnListener
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returnAdder
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currentField
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currentProperty
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extension
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typeCheckingContext
 
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Constructor Details- 
StaticTypeCheckingVisitor
 
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Method Details- 
getSourceUnit- Specified by:
- getSourceUnitin class- ClassCodeVisitorSupport
 
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initializepublic void initialize()
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getTypeCheckingContextReturns 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
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setCompilationUnit
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visitClassDescription copied from interface:GroovyClassVisitorVisit a ClassNode.- Specified by:
- visitClassin interface- GroovyClassVisitor
- Overrides:
- visitClassin class- ClassCodeVisitorSupport
 
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getTypeCheckingAnnotationsReturns 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
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isSkipMode
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isSkippedInnerClassTests 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- Specified by:
- visitClassExpressionin interface- GroovyCodeVisitor
- Overrides:
- visitClassExpressionin class- CodeVisitorSupport
 
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visitVariableExpression- Specified by:
- visitVariableExpressionin interface- GroovyCodeVisitor
- Overrides:
- visitVariableExpressionin class- CodeVisitorSupport
 
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visitPropertyExpression- Specified by:
- visitPropertyExpressionin interface- GroovyCodeVisitor
- Overrides:
- visitPropertyExpressionin class- CodeVisitorSupport
 
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visitAttributeExpression- Specified by:
- visitAttributeExpressionin interface- GroovyCodeVisitor
- Overrides:
- visitAttributeExpressionin class- CodeVisitorSupport
 
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visitRangeExpression- Specified by:
- visitRangeExpressionin interface- GroovyCodeVisitor
- Overrides:
- visitRangeExpressionin class- CodeVisitorSupport
 
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visitNotExpression- Specified by:
- visitNotExpressionin interface- GroovyCodeVisitor
- Overrides:
- visitNotExpressionin class- CodeVisitorSupport
 
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visitBinaryExpression- Specified by:
- visitBinaryExpressionin interface- GroovyCodeVisitor
- Overrides:
- visitBinaryExpressionin class- CodeVisitorSupport
 
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getOriginalDeclarationType
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inferDiamondType
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typeCheckAssignmentprotected void typeCheckAssignment(BinaryExpression assignmentExpression, Expression leftExpression, ClassNode leftExpressionType, Expression rightExpression, ClassNode rightExpressionType)
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checkGroovyConstructorMapprotected 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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checkGroovyStyleConstructorDeprecated.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 constructor
- arguments- the constructor arguments
 
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checkGroovyStyleConstructorprotected MethodNode checkGroovyStyleConstructor(ClassNode node, ClassNode[] arguments, ASTNode origin)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 constructor
- arguments- the constructor arguments
 
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existsProperty
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existsPropertyprotected 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 expression
- readMode- if true, look for property read, else for property set
- visitor- 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@Deprecated protected void storeInferredTypeForPropertyExpression(PropertyExpression pexp, ClassNode flatInferredType)Deprecated.
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visitPropertyDescription copied from interface:GroovyClassVisitorVisit a PropertyNode.- Specified by:
- visitPropertyin interface- GroovyClassVisitor
- Overrides:
- visitPropertyin class- ClassCodeVisitorSupport
 
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visitFieldDescription copied from interface:GroovyClassVisitorVisit a FieldNode.- Specified by:
- visitFieldin interface- GroovyClassVisitor
- Overrides:
- visitFieldin class- ClassCodeVisitorSupport
 
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visitForLoop- Specified by:
- visitForLoopin interface- GroovyCodeVisitor
- Overrides:
- visitForLoopin class- ClassCodeVisitorSupport
 
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inferLoopElementTypeReturns 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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isSecondPassNeededForControlStructureprotected boolean isSecondPassNeededForControlStructure(java.util.Map<VariableExpression,ClassNode> varOrigType, java.util.Map<VariableExpression,java.util.List<ClassNode>> oldTracker)
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visitWhileLoop- Specified by:
- visitWhileLoopin interface- GroovyCodeVisitor
- Overrides:
- visitWhileLoopin class- ClassCodeVisitorSupport
 
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visitBitwiseNegationExpression- Specified by:
- visitBitwiseNegationExpressionin interface- GroovyCodeVisitor
- Overrides:
- visitBitwiseNegationExpressionin class- CodeVisitorSupport
 
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visitUnaryPlusExpression- Specified by:
- visitUnaryPlusExpressionin interface- GroovyCodeVisitor
- Overrides:
- visitUnaryPlusExpressionin class- CodeVisitorSupport
 
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visitUnaryMinusExpression- Specified by:
- visitUnaryMinusExpressionin interface- GroovyCodeVisitor
- Overrides:
- visitUnaryMinusExpressionin class- CodeVisitorSupport
 
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visitPostfixExpression- Specified by:
- visitPostfixExpressionin interface- GroovyCodeVisitor
- Overrides:
- visitPostfixExpressionin class- CodeVisitorSupport
 
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visitPrefixExpression- Specified by:
- visitPrefixExpressionin interface- GroovyCodeVisitor
- Overrides:
- visitPrefixExpressionin class- CodeVisitorSupport
 
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visitConstructorOrMethod- Overrides:
- visitConstructorOrMethodin class- ClassCodeVisitorSupport
 
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visitExpressionStatement- Specified by:
- visitExpressionStatementin interface- GroovyCodeVisitor
- Overrides:
- visitExpressionStatementin class- ClassCodeVisitorSupport
 
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visitReturnStatement- Specified by:
- visitReturnStatementin interface- GroovyCodeVisitor
- Overrides:
- visitReturnStatementin class- ClassCodeVisitorSupport
 
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checkReturnType
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addClosureReturnType
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visitConstructorCallExpression- Specified by:
- visitConstructorCallExpressionin interface- GroovyCodeVisitor
- Overrides:
- visitConstructorCallExpressionin class- CodeVisitorSupport
 
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typeCheckMapConstructorprotected MethodNode typeCheckMapConstructor(ConstructorCallExpression call, ClassNode receiver, Expression arguments)
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getArgumentTypes
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visitClosureExpression- Specified by:
- visitClosureExpressionin interface- GroovyCodeVisitor
- Overrides:
- visitClosureExpressionin class- CodeVisitorSupport
 
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visitMethodPointerExpression- Specified by:
- visitMethodPointerExpressionin interface- GroovyCodeVisitor
- Overrides:
- visitMethodPointerExpressionin class- CodeVisitorSupport
 
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getDelegationMetadataprotected org.codehaus.groovy.transform.stc.DelegationMetadata getDelegationMetadata(ClosureExpression expression)
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restoreVariableExpressionMetadataprotected void restoreVariableExpressionMetadata(java.util.Map<VariableExpression,java.util.Map<StaticTypesMarker,java.lang.Object>> typesBeforeVisit)
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saveVariableExpressionMetadataprotected void saveVariableExpressionMetadata(java.util.Set<VariableExpression> closureSharedExpressions, java.util.Map<VariableExpression,java.util.Map<StaticTypesMarker,java.lang.Object>> typesBeforeVisit)
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shouldSkipMethodNode
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visitMethodDescription copied from interface:GroovyClassVisitorVisit a MethodNode.- Specified by:
- visitMethodin interface- GroovyClassVisitor
- Overrides:
- visitMethodin class- ClassCodeVisitorSupport
 
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visitConstructorDescription copied from interface:GroovyClassVisitorVisit a ConstructorNode.- Specified by:
- visitConstructorin interface- GroovyClassVisitor
- Overrides:
- visitConstructorin class- ClassCodeVisitorSupport
 
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startMethodInference
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visitObjectInitializerStatements- Overrides:
- visitObjectInitializerStatementsin class- ClassCodeVisitorSupport
 
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addTypeCheckingInfoAnnotation
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visitStaticMethodCallExpression- Specified by:
- visitStaticMethodCallExpressionin interface- GroovyCodeVisitor
- Overrides:
- visitStaticMethodCallExpressionin class- CodeVisitorSupport
 
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checkClosureParametersDeprecated.this method is unused, replaced withDelegatesToinference.
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silentlyVisitMethodNodeVisits 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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visitMethodCallArgumentsprotected void visitMethodCallArguments(ClassNode receiver, ArgumentListExpression arguments, boolean visitClosures, MethodNode selectedMethod)
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inferClosureParameterTypesprotected 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 inferred
- target- parameter which may provide- ClosureParamsannotation or SAM type
- method- method that declares- target
 
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addReceivers
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visitMethodCallExpression- Specified by:
- visitMethodCallExpressionin interface- GroovyCodeVisitor
- Overrides:
- visitMethodCallExpressionin class- CodeVisitorSupport
 
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getInferredReturnTypeFromWithClosureArgumentIn 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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makeOwnerListGiven an object expression (a message receiver expression), generate list of possible types.- Parameters:
- objectExpression- the receiver expression
- Returns:
- the list of types the receiver may be
 
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checkForbiddenSpreadArgument
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storeTargetMethod
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isClosureCall@Deprecated protected boolean isClosureCall(java.lang.String name, Expression objectExpression, Expression arguments)Deprecated.
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typeCheckClosureCallprotected void typeCheckClosureCall(Expression arguments, ClassNode[] argumentTypes, Parameter[] parameters)
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visitIfElse- Specified by:
- visitIfElsein interface- GroovyCodeVisitor
- Overrides:
- visitIfElsein class- ClassCodeVisitorSupport
 
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visitInstanceofNotDeprecated.
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visitBlockStatementDeprecated.- Specified by:
- visitBlockStatementin interface- GroovyCodeVisitor
- Overrides:
- visitBlockStatementin class- ClassCodeVisitorSupport
 
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visitClosingBlockDeprecated.
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findInstanceOfNotReturnExpressionDeprecated.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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findNotInstanceOfReturnExpressionDeprecated.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- Specified by:
- visitSwitchin interface- GroovyCodeVisitor
- Overrides:
- visitSwitchin class- ClassCodeVisitorSupport
 
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afterSwitchConditionExpressionVisited- Overrides:
- afterSwitchConditionExpressionVisitedin class- CodeVisitorSupport
 
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visitCaseStatement- Specified by:
- visitCaseStatementin interface- GroovyCodeVisitor
- Overrides:
- visitCaseStatementin class- ClassCodeVisitorSupport
 
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popAssignmentTrackingprotected java.util.Map<VariableExpression,ClassNode> popAssignmentTracking(java.util.Map<VariableExpression,java.util.List<ClassNode>> oldTracker)
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pushAssignmentTracking
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visitArrayExpression- Specified by:
- visitArrayExpressionin interface- GroovyCodeVisitor
- Overrides:
- visitArrayExpressionin class- CodeVisitorSupport
 
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visitCastExpression- Specified by:
- visitCastExpressionin interface- GroovyCodeVisitor
- Overrides:
- visitCastExpressionin class- CodeVisitorSupport
 
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checkCast
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visitTernaryExpression- Specified by:
- visitTernaryExpressionin interface- GroovyCodeVisitor
- Overrides:
- visitTernaryExpressionin class- CodeVisitorSupport
 
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visitTryCatchFinally- Specified by:
- visitTryCatchFinallyin interface- GroovyCodeVisitor
- Overrides:
- visitTryCatchFinallyin class- ClassCodeVisitorSupport
 
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storeType
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getResultType
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getGroupOperationResultType
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inferComponentType
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findMethodOrFailprotected MethodNode findMethodOrFail(Expression expr, ClassNode receiver, java.lang.String name, ClassNode... args)
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prettyPrintMethodList
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areCategoryMethodCallsprotected boolean areCategoryMethodCalls(java.util.List<MethodNode> foundMethods, java.lang.String name, ClassNode[] args)
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findMethodsWithGeneratedprotected java.util.List<MethodNode> findMethodsWithGenerated(ClassNode receiver, java.lang.String name)Returns methods defined for the specified receiver and adds "non-existing" methods that will be generated afterwards by the compiler; for example if a method is using default values and the class node isn't compiled yet.- Parameters:
- receiver- the receiver where to find methods
- name- 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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findMethodprotected java.util.List<MethodNode> findMethod(ClassNode receiver, java.lang.String name, ClassNode... args)
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extractPropertyNameFromMethodNamepublic 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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getType
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storeInferredReturnTypeStores 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- a- ClosureExpressionor a- MethodNode
- type- the inferred return type of the code
- Returns:
- the old value of the inferred type
 
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getInferredReturnTypeReturns the inferred return type of a closure or method, if stored on the AST node. This method doesn't perform any type inference by itself.- Parameters:
- node- a- ClosureExpressionor- MethodNode
- Returns:
- the expected return type
 
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isNullConstant
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isThisExpression
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isSuperExpression
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inferListExpressionType
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inferMapExpressionType
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inferReturnTypeGenericsprotected 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 node
- arguments- the method call arguments
- receiver- the object expression type
 
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inferReturnTypeGenericsprotected 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 node
- arguments- the method call arguments
- receiver- the object expression type
- explicitTypeHints- type arguments (optional), for example- Collections.<String>emptyList()
 
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typeCheckMethodsWithGenericsOrFailprotected boolean typeCheckMethodsWithGenericsOrFail(ClassNode receiver, ClassNode[] arguments, MethodNode candidateMethod, Expression location)
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formatArgumentList
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addError- Specified by:
- addErrorin interface- ErrorCollecting
- Overrides:
- addErrorin class- ClassCodeVisitorSupport
 
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addStaticTypeError
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addNoMatchingMethodErrorprotected void addNoMatchingMethodError(ClassNode receiver, java.lang.String name, ClassNode[] args, Expression call)
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addAmbiguousErrorMessageprotected void addAmbiguousErrorMessage(java.util.List<MethodNode> foundMethods, java.lang.String name, ClassNode[] args, Expression expr)
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addCategoryMethodCallError
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addAssignmentError
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addUnsupportedPreOrPostfixExpressionError
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setMethodsToBeVisited
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performSecondPasspublic void performSecondPass()
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extractTypesFromParameters
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wrapTypeIfNecessaryReturns 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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isClassInnerClassOrEqualTo
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pushInstanceOfTypeInfoStores information about types when [objectOfInstanceof instanceof typeExpression] is visited.- Parameters:
- objectOfInstanceOf- the expression to be checked against instanceof
- typeExpression- the expression which represents the target type
 
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extractTemporaryTypeInfoKeyComputes the key to use forTypeCheckingContext.temporaryIfBranchTypeInformation.
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findCurrentInstanceOfClassA 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:
- expression- the expression for which an unknown field has been found
- type- 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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getTemporaryTypesForExpression
 
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DelegatesToinference.