org.eclipse.jdt.internal.compiler.lookup
类 Scope

java.lang.Object
  org.eclipse.jdt.internal.compiler.lookup.Scope

直接已知子类：

BlockScope, ClassScope, CompilationUnitScope

public abstract class Scope
extends Object

字段摘要

static int	AUTOBOX_COMPATIBLE
static int	BLOCK_SCOPE
static int	CLASS_SCOPE
static int	COMPATIBLE
static int	COMPILATION_UNIT_SCOPE
static int	EQUAL_OR_MORE_SPECIFIC
int	kind
static int	METHOD_SCOPE
static int	MORE_GENERIC
static int	NOT_COMPATIBLE
static int	NOT_RELATED
Scope	parent
static int	VARARGS_COMPATIBLE

构造方法摘要

protected

Scope(int kind, Scope parent)

方法摘要

TypeBinding	boxing(TypeBinding type)
ClassScope	classScope()
static int	compareTypes(TypeBinding left, TypeBinding right)
CompilationUnitScope	compilationUnitScope()
CompilerOptions	compilerOptions() Finds the most specific compiler options
protected MethodBinding	computeCompatibleMethod(MethodBinding method, TypeBinding[] arguments, InvocationSite invocationSite) Internal use only Given a method, returns null if arguments cannot be converted to parameters.
protected boolean	connectTypeVariables(TypeParameter[] typeParameters, boolean checkForErasedCandidateCollisions) Connect type variable supertypes, and returns true if no problem was detected
static TypeBinding	convertEliminatingTypeVariables(TypeBinding originalType, ReferenceBinding genericType, int rank, Set eliminatedVariables) Returns a type where either all variables or specific ones got discarded.
ArrayBinding	createArrayType(TypeBinding type, int dimension)
TypeVariableBinding[]	createTypeVariables(TypeParameter[] typeParameters, Binding declaringElement)
void	deferBoundCheck(TypeReference typeRef)
ClassScope	enclosingClassScope()
MethodScope	enclosingMethodScope()
ReferenceBinding	enclosingReceiverType()
ReferenceContext	enclosingReferenceContext() Returns the immediately enclosing reference context, starting from current scope parent.
SourceTypeBinding	enclosingSourceType()
LookupEnvironment	environment()
protected MethodBinding	findDefaultAbstractMethod(ReferenceBinding receiverType, char[] selector, TypeBinding[] argumentTypes, InvocationSite invocationSite, ReferenceBinding classHierarchyStart, ObjectVector found, MethodBinding concreteMatch)
ReferenceBinding	findDirectMemberType(char[] typeName, ReferenceBinding enclosingType)
MethodBinding	findExactMethod(ReferenceBinding receiverType, char[] selector, TypeBinding[] argumentTypes, InvocationSite invocationSite)
FieldBinding	findField(TypeBinding receiverType, char[] fieldName, InvocationSite invocationSite, boolean needResolve)
FieldBinding	findField(TypeBinding receiverType, char[] fieldName, InvocationSite invocationSite, boolean needResolve, boolean invisibleFieldsOk)
ReferenceBinding	findMemberType(char[] typeName, ReferenceBinding enclosingType)
MethodBinding	findMethod(ReferenceBinding receiverType, char[] selector, TypeBinding[] argumentTypes, InvocationSite invocationSite)
MethodBinding	findMethod(ReferenceBinding receiverType, char[] selector, TypeBinding[] argumentTypes, InvocationSite invocationSite, boolean inStaticContext)
MethodBinding	findMethodForArray(ArrayBinding receiverType, char[] selector, TypeBinding[] argumentTypes, InvocationSite invocationSite)
protected void	findMethodInSuperInterfaces(ReferenceBinding currentType, char[] selector, ObjectVector found, InvocationSite invocationSite)
ReferenceBinding	findType(char[] typeName, PackageBinding declarationPackage, PackageBinding invocationPackage)
LocalVariableBinding	findVariable(char[] variable)
static TypeBinding	getBaseType(char[] name)
Binding	getBinding(char[] name, int mask, InvocationSite invocationSite, boolean needResolve)
MethodBinding	getConstructor(ReferenceBinding receiverType, TypeBinding[] argumentTypes, InvocationSite invocationSite)
PackageBinding	getCurrentPackage()
int	getDeclarationModifiers() Returns the modifiers of the innermost enclosing declaration.
FieldBinding	getField(TypeBinding receiverType, char[] fieldName, InvocationSite invocationSite)
MethodBinding	getImplicitMethod(char[] selector, TypeBinding[] argumentTypes, InvocationSite invocationSite)
ReferenceBinding	getJavaIoSerializable()
ReferenceBinding	getJavaLangAnnotationAnnotation()
ReferenceBinding	getJavaLangAssertionError()
ReferenceBinding	getJavaLangClass()
ReferenceBinding	getJavaLangCloneable()
ReferenceBinding	getJavaLangEnum()
ReferenceBinding	getJavaLangIterable()
ReferenceBinding	getJavaLangObject()
ReferenceBinding	getJavaLangString()
ReferenceBinding	getJavaLangThrowable()
ReferenceBinding	getJavaUtilIterator()
ReferenceBinding	getMemberType(char[] typeName, ReferenceBinding enclosingType)
MethodBinding	getMethod(TypeBinding receiverType, char[] selector, TypeBinding[] argumentTypes, InvocationSite invocationSite)
Binding	getPackage(char[][] compoundName)
MethodBinding	getStaticFactory(ReferenceBinding allocationType, ReferenceBinding originalEnclosingType, TypeBinding[] argumentTypes, InvocationSite allocationSite)
TypeBinding	getType(char[] name)
TypeBinding	getType(char[][] compoundName, int typeNameLength)
TypeBinding	getType(char[] name, PackageBinding packageBinding)
Binding	getTypeOrPackage(char[][] compoundName)
static ReferenceBinding[]	greaterLowerBound(ReferenceBinding[] types)
static TypeBinding[]	greaterLowerBound(TypeBinding[] types)
protected boolean	hasErasedCandidatesCollisions(TypeBinding one, TypeBinding two, Map invocations, ReferenceBinding type, ASTNode typeRef)
CaseStatement	innermostSwitchCase() Returns the immediately enclosing switchCase statement (carried by closest blockScope),
protected boolean	isAcceptableMethod(MethodBinding one, MethodBinding two)
boolean	isBoxingCompatibleWith(TypeBinding expressionType, TypeBinding targetType)
boolean	isDefinedInField(FieldBinding field)
boolean	isDefinedInMethod(MethodBinding method)
boolean	isDefinedInSameUnit(ReferenceBinding type)
boolean	isDefinedInType(ReferenceBinding type)
boolean	isInsideCase(CaseStatement caseStatement) Returns true if the scope or one of its parent is associated to a given caseStatement, denoting being part of a given switch case statement.
boolean	isInsideDeprecatedCode()
boolean	isPossibleSubtypeOfRawType(TypeBinding paramType)
TypeBinding	lowerUpperBound(TypeBinding[] types) Returns VoidBinding if types have no intersection (e.g. 2 unrelated interfaces), or null if no common supertype (e.g.
MethodScope	methodScope()
protected TypeBinding[]	minimalErasedCandidates(TypeBinding[] types, Map allInvocations) Returns the most specific set of types compatible with all given types.
protected MethodBinding	mostSpecificClassMethodBinding(MethodBinding[] visible, int visibleSize, InvocationSite invocationSite)
protected MethodBinding	mostSpecificInterfaceMethodBinding(MethodBinding[] visible, int visibleSize, InvocationSite invocationSite)
protected MethodBinding	mostSpecificMethodBinding(MethodBinding[] visible, int visibleSize, TypeBinding[] argumentTypes, InvocationSite invocationSite, ReferenceBinding receiverType)
ClassScope	outerMostClassScope()
MethodScope	outerMostMethodScope()
int	parameterCompatibilityLevel(MethodBinding method, TypeBinding[] arguments)
abstract ProblemReporter	problemReporter()
CompilationUnitDeclaration	referenceCompilationUnit()
ReferenceContext	referenceContext() Returns the nearest reference context, starting from current scope.
static ReferenceBinding[]	substitute(Substitution substitution, ReferenceBinding[] originalTypes) Returns an array of types, where original types got substituted given a substitution.
static TypeBinding	substitute(Substitution substitution, TypeBinding originalType) Returns a type, where original type was substituted using the receiver parameterized type.
static TypeBinding[]	substitute(Substitution substitution, TypeBinding[] originalTypes) Returns an array of types, where original types got substituted given a substitution.

从类 java.lang.Object 继承的方法

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

字段详细信息

BLOCK_SCOPE

public static final int BLOCK_SCOPE

另请参见：

常量字段值

CLASS_SCOPE

public static final int CLASS_SCOPE

另请参见：

常量字段值

COMPILATION_UNIT_SCOPE

public static final int COMPILATION_UNIT_SCOPE

另请参见：

常量字段值

METHOD_SCOPE

public static final int METHOD_SCOPE

另请参见：

常量字段值

NOT_COMPATIBLE

public static final int NOT_COMPATIBLE

另请参见：

常量字段值

COMPATIBLE

public static final int COMPATIBLE

另请参见：

常量字段值

AUTOBOX_COMPATIBLE

public static final int AUTOBOX_COMPATIBLE

另请参见：

常量字段值

VARARGS_COMPATIBLE

public static final int VARARGS_COMPATIBLE

另请参见：

常量字段值

EQUAL_OR_MORE_SPECIFIC

public static final int EQUAL_OR_MORE_SPECIFIC

另请参见：

常量字段值

NOT_RELATED

public static final int NOT_RELATED

另请参见：

常量字段值

MORE_GENERIC

public static final int MORE_GENERIC

另请参见：

常量字段值

kind

public int kind

parent

public Scope parent

构造方法详细信息

Scope

protected Scope(int kind,
                Scope parent)

方法详细信息

compareTypes

public static int compareTypes(TypeBinding left,
                               TypeBinding right)

convertEliminatingTypeVariables

public static TypeBinding convertEliminatingTypeVariables(TypeBinding originalType,
                                                          ReferenceBinding genericType,
                                                          int rank,
                                                          Set eliminatedVariables)

Returns a type where either all variables or specific ones got discarded. e.g. List (discarding ) will return: List>

getBaseType

public static TypeBinding getBaseType(char[] name)

greaterLowerBound

public static ReferenceBinding[] greaterLowerBound(ReferenceBinding[] types)

greaterLowerBound

public static TypeBinding[] greaterLowerBound(TypeBinding[] types)

substitute

public static ReferenceBinding[] substitute(Substitution substitution,
                                            ReferenceBinding[] originalTypes)

Returns an array of types, where original types got substituted given a substitution. Only allocate an array if anything is different.

substitute

public static TypeBinding substitute(Substitution substitution,
                                     TypeBinding originalType)

Returns a type, where original type was substituted using the receiver parameterized type. In raw mode, all parameterized type denoting same original type are converted to raw types. e.g. class X { X foo; X bar; } when used in raw fashion, then type of both foo and bar is raw type X.

substitute

public static TypeBinding[] substitute(Substitution substitution,
                                       TypeBinding[] originalTypes)

Returns an array of types, where original types got substituted given a substitution. Only allocate an array if anything is different.

boxing

public TypeBinding boxing(TypeBinding type)

classScope

public final ClassScope classScope()

compilationUnitScope

public final CompilationUnitScope compilationUnitScope()

compilerOptions

public final CompilerOptions compilerOptions()

Finds the most specific compiler options

computeCompatibleMethod

protected final MethodBinding computeCompatibleMethod(MethodBinding method,
                                                      TypeBinding[] arguments,
                                                      InvocationSite invocationSite)

Internal use only Given a method, returns null if arguments cannot be converted to parameters. Will answer a substituted method in case the method was generic and type inference got triggered; in case the method was originally compatible, then simply answer it back.

connectTypeVariables

protected boolean connectTypeVariables(TypeParameter[] typeParameters,
                                       boolean checkForErasedCandidateCollisions)

Connect type variable supertypes, and returns true if no problem was detected

参数：

typeParameters -

checkForErasedCandidateCollisions -

createArrayType

public ArrayBinding createArrayType(TypeBinding type,
                                    int dimension)

createTypeVariables

public TypeVariableBinding[] createTypeVariables(TypeParameter[] typeParameters,
                                                 Binding declaringElement)

enclosingClassScope

public final ClassScope enclosingClassScope()

enclosingMethodScope

public final MethodScope enclosingMethodScope()

enclosingReceiverType

public final ReferenceBinding enclosingReceiverType()

enclosingReferenceContext

public ReferenceContext enclosingReferenceContext()

Returns the immediately enclosing reference context, starting from current scope parent. If starting on a class, it will skip current class. If starting on unitScope, returns null.

enclosingSourceType

public final SourceTypeBinding enclosingSourceType()

environment

public final LookupEnvironment environment()

findDefaultAbstractMethod

protected MethodBinding findDefaultAbstractMethod(ReferenceBinding receiverType,
                                                  char[] selector,
                                                  TypeBinding[] argumentTypes,
                                                  InvocationSite invocationSite,
                                                  ReferenceBinding classHierarchyStart,
                                                  ObjectVector found,
                                                  MethodBinding concreteMatch)

findDirectMemberType

public ReferenceBinding findDirectMemberType(char[] typeName,
                                             ReferenceBinding enclosingType)

findExactMethod

public MethodBinding findExactMethod(ReferenceBinding receiverType,
                                     char[] selector,
                                     TypeBinding[] argumentTypes,
                                     InvocationSite invocationSite)

findField

public FieldBinding findField(TypeBinding receiverType,
                              char[] fieldName,
                              InvocationSite invocationSite,
                              boolean needResolve)

findField

public FieldBinding findField(TypeBinding receiverType,
                              char[] fieldName,
                              InvocationSite invocationSite,
                              boolean needResolve,
                              boolean invisibleFieldsOk)

findMemberType

public ReferenceBinding findMemberType(char[] typeName,
                                       ReferenceBinding enclosingType)

findMethod

public MethodBinding findMethod(ReferenceBinding receiverType,
                                char[] selector,
                                TypeBinding[] argumentTypes,
                                InvocationSite invocationSite)

findMethod

public MethodBinding findMethod(ReferenceBinding receiverType,
                                char[] selector,
                                TypeBinding[] argumentTypes,
                                InvocationSite invocationSite,
                                boolean inStaticContext)

findMethodForArray

public MethodBinding findMethodForArray(ArrayBinding receiverType,
                                        char[] selector,
                                        TypeBinding[] argumentTypes,
                                        InvocationSite invocationSite)

findMethodInSuperInterfaces

protected void findMethodInSuperInterfaces(ReferenceBinding currentType,
                                           char[] selector,
                                           ObjectVector found,
                                           InvocationSite invocationSite)

findType

public ReferenceBinding findType(char[] typeName,
                                 PackageBinding declarationPackage,
                                 PackageBinding invocationPackage)

findVariable

public LocalVariableBinding findVariable(char[] variable)

getBinding

public Binding getBinding(char[] name,
                          int mask,
                          InvocationSite invocationSite,
                          boolean needResolve)

getConstructor

public MethodBinding getConstructor(ReferenceBinding receiverType,
                                    TypeBinding[] argumentTypes,
                                    InvocationSite invocationSite)

getCurrentPackage

public final PackageBinding getCurrentPackage()

getDeclarationModifiers

public int getDeclarationModifiers()

Returns the modifiers of the innermost enclosing declaration.

返回：

modifiers

getField

public FieldBinding getField(TypeBinding receiverType,
                             char[] fieldName,
                             InvocationSite invocationSite)

getImplicitMethod

public MethodBinding getImplicitMethod(char[] selector,
                                       TypeBinding[] argumentTypes,
                                       InvocationSite invocationSite)

getJavaIoSerializable

public final ReferenceBinding getJavaIoSerializable()

getJavaLangAnnotationAnnotation

public final ReferenceBinding getJavaLangAnnotationAnnotation()

getJavaLangAssertionError

public final ReferenceBinding getJavaLangAssertionError()

getJavaLangClass

public final ReferenceBinding getJavaLangClass()

getJavaLangCloneable

public final ReferenceBinding getJavaLangCloneable()

getJavaLangEnum

public final ReferenceBinding getJavaLangEnum()

getJavaLangIterable

public final ReferenceBinding getJavaLangIterable()

getJavaLangObject

public final ReferenceBinding getJavaLangObject()

getJavaLangString

public final ReferenceBinding getJavaLangString()

getJavaLangThrowable

public final ReferenceBinding getJavaLangThrowable()

getJavaUtilIterator

public final ReferenceBinding getJavaUtilIterator()

getMemberType

public final ReferenceBinding getMemberType(char[] typeName,
                                            ReferenceBinding enclosingType)

getMethod

public MethodBinding getMethod(TypeBinding receiverType,
                               char[] selector,
                               TypeBinding[] argumentTypes,
                               InvocationSite invocationSite)

getPackage

public final Binding getPackage(char[][] compoundName)

getType

public final TypeBinding getType(char[] name)

getType

public final TypeBinding getType(char[] name,
                                 PackageBinding packageBinding)

getType

public final TypeBinding getType(char[][] compoundName,
                                 int typeNameLength)

getTypeOrPackage

public final Binding getTypeOrPackage(char[][] compoundName)

hasErasedCandidatesCollisions

protected boolean hasErasedCandidatesCollisions(TypeBinding one,
                                                TypeBinding two,
                                                Map invocations,
                                                ReferenceBinding type,
                                                ASTNode typeRef)

innermostSwitchCase

public CaseStatement innermostSwitchCase()

Returns the immediately enclosing switchCase statement (carried by closest blockScope),

isAcceptableMethod

protected boolean isAcceptableMethod(MethodBinding one,
                                     MethodBinding two)

isBoxingCompatibleWith

public boolean isBoxingCompatibleWith(TypeBinding expressionType,
                                      TypeBinding targetType)

isDefinedInField

public final boolean isDefinedInField(FieldBinding field)

isDefinedInMethod

public final boolean isDefinedInMethod(MethodBinding method)

isDefinedInSameUnit

public final boolean isDefinedInSameUnit(ReferenceBinding type)

isDefinedInType

public final boolean isDefinedInType(ReferenceBinding type)

isInsideCase

public boolean isInsideCase(CaseStatement caseStatement)

Returns true if the scope or one of its parent is associated to a given caseStatement, denoting being part of a given switch case statement.

isInsideDeprecatedCode

public boolean isInsideDeprecatedCode()

isPossibleSubtypeOfRawType

public boolean isPossibleSubtypeOfRawType(TypeBinding paramType)

lowerUpperBound

public TypeBinding lowerUpperBound(TypeBinding[] types)

Returns VoidBinding if types have no intersection (e.g. 2 unrelated interfaces), or null if no common supertype (e.g. List and List), or the intersection type if possible

methodScope

public final MethodScope methodScope()

minimalErasedCandidates

protected TypeBinding[] minimalErasedCandidates(TypeBinding[] types,
                                                Map allInvocations)

Returns the most specific set of types compatible with all given types. (i.e. most specific common super types) If no types is given, will return an empty array. If not compatible reference type is found, returns null. In other cases, will return an array of minimal erased types, where some nulls may appear (and must simply be ignored).

mostSpecificClassMethodBinding

protected final MethodBinding mostSpecificClassMethodBinding(MethodBinding[] visible,
                                                             int visibleSize,
                                                             InvocationSite invocationSite)

mostSpecificInterfaceMethodBinding

protected final MethodBinding mostSpecificInterfaceMethodBinding(MethodBinding[] visible,
                                                                 int visibleSize,
                                                                 InvocationSite invocationSite)

mostSpecificMethodBinding

protected final MethodBinding mostSpecificMethodBinding(MethodBinding[] visible,
                                                        int visibleSize,
                                                        TypeBinding[] argumentTypes,
                                                        InvocationSite invocationSite,
                                                        ReferenceBinding receiverType)

outerMostClassScope

public final ClassScope outerMostClassScope()

outerMostMethodScope

public final MethodScope outerMostMethodScope()

parameterCompatibilityLevel

public int parameterCompatibilityLevel(MethodBinding method,
                                       TypeBinding[] arguments)

problemReporter

public abstract ProblemReporter problemReporter()

referenceCompilationUnit

public final CompilationUnitDeclaration referenceCompilationUnit()

referenceContext

public ReferenceContext referenceContext()

Returns the nearest reference context, starting from current scope. If starting on a class, it will return current class. If starting on unitScope, returns unit.

deferBoundCheck

public void deferBoundCheck(TypeReference typeRef)

getStaticFactory

public MethodBinding getStaticFactory(ReferenceBinding allocationType,
                                      ReferenceBinding originalEnclosingType,
                                      TypeBinding[] argumentTypes,
                                      InvocationSite allocationSite)