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org.eclipse.jdt.internal.compiler.ast
类 NullLiteral

java.lang.Object
  继承者 org.eclipse.jdt.internal.compiler.ast.ASTNode
      继承者 org.eclipse.jdt.internal.compiler.ast.Statement
          继承者 org.eclipse.jdt.internal.compiler.ast.Expression
              继承者 org.eclipse.jdt.internal.compiler.ast.Literal
                  继承者 org.eclipse.jdt.internal.compiler.ast.MagicLiteral
                      继承者 org.eclipse.jdt.internal.compiler.ast.NullLiteral
所有已实现的接口：
TypeConstants, TypeIds
public class NullLiteral
extends MagicLiteral

字段摘要
 
从类 org.eclipse.jdt.internal.compiler.ast.Expression 继承的字段
constant, implicitConversion, resolvedType, statementEnd
 
从类 org.eclipse.jdt.internal.compiler.ast.Statement 继承的字段
COMPLAINED_FAKE_REACHABLE, COMPLAINED_UNREACHABLE, NOT_COMPLAINED
 
从类 org.eclipse.jdt.internal.compiler.ast.ASTNode 继承的字段
Bit1, Bit10, Bit11, Bit12, Bit13, Bit14, Bit15, Bit16, Bit17, Bit18, Bit19, Bit2, Bit20, Bit21, Bit22, Bit23, Bit24, Bit25, Bit26, Bit27, Bit28, Bit29, Bit3, Bit30, Bit31, Bit32, Bit32L, Bit33L, Bit34L, Bit35L, Bit36L, Bit37L, Bit38L, Bit39L, Bit4, Bit40L, Bit41L, Bit42L, Bit43L, Bit44L, Bit45L, Bit46L, Bit47L, Bit48L, Bit49L, Bit5, Bit50L, Bit51L, Bit52L, Bit53L, Bit54L, Bit55L, Bit56L, Bit57L, Bit58L, Bit59L, Bit6, Bit60L, Bit61L, Bit62L, Bit63L, Bit64L, Bit7, Bit8, Bit9, bits, BlockExit, CanBeStatic, ContainsAssertion, DepthMASK, DepthSHIFT, DidResolve, DisableUnnecessaryCastCheck, DiscardEnclosingInstance, DocumentedFallthrough, Empty, ErrorInSignature, FirstAssignmentToLocal, GenerateCheckcast, HasAbstractMethods, HasAllMethodBodies, HasBeenGenerated, HasBeenResolved, HasLocalType, HasSyntaxErrors, IgnoreNoEffectAssignCheck, IgnoreRawTypeCheck, InsideExpressionStatement, InsideJavadoc, INVOCATION_ARGUMENT_OK, INVOCATION_ARGUMENT_UNCHECKED, INVOCATION_ARGUMENT_WILDCARD, IsAnnotationDefaultValue, IsAnonymousType, IsAnySubRoutineEscaping, IsArgument, IsCompoundAssigned, IsDefaultConstructor, IsDiamond, IsElseIfStatement, IsElseStatementUnreachable, IsImplicitThis, IsImplicitUnit, IsLocalDeclarationReachable, IsLocalType, IsMemberType, IsNonNull, IsReachable, IsRecovered, IsReturnedValue, IsSecondaryType, IsStrictlyAssigned, IsSubRoutineEscaping, IsSuperType, IsSynchronized, IsThenStatementUnreachable, IsTryBlockExiting, IsUnionType, IsUsefulEmptyStatement, IsVarArgs, LabelUsed, NeededScope, NeedFreeReturn, NeedReceiverGenericCast, OnDemand, OperatorMASK, OperatorSHIFT, OverridingMethodWithSupercall, ParenthesizedMASK, ParenthesizedSHIFT, ResolveJavadoc, RestrictiveFlagMASK, ReturnTypeIDMASK, sourceEnd, sourceStart, SuperAccess, ThenExit, Unchecked, UndocumentedEmptyBlock, UnnecessaryCast, UnsafeCast, Used
 
从接口 org.eclipse.jdt.internal.compiler.lookup.TypeConstants 继承的字段
ANNOTATION, ANNOTATION_PREFIX, ANNOTATION_SUFFIX, ANONYM_PREFIX, ANONYM_SUFFIX, BOOLEAN, BYTE, CHAR, CharArray_JAVA_IO_OBJECTINPUTSTREAM, CharArray_JAVA_IO_OBJECTOUTPUTSTREAM, CharArray_JAVA_IO_OBJECTSTREAMFIELD, CharArray_JAVA_LANG_ANNOTATION_ANNOTATION, CharArray_JAVA_LANG_ENUM, CharArray_JAVA_LANG_OBJECT, CLINIT, CLONE, CONSTRAINT_EQUAL, CONSTRAINT_EXTENDS, CONSTRAINT_SUPER, DOUBLE, EQUALS, FLOAT, GETCLASS, HASHCODE, INIT, INT, INVOKE, IO, JAVA, JAVA_IO, JAVA_IO_EXTERNALIZABLE, JAVA_IO_IOEXCEPTION, JAVA_IO_OBJECTINPUTSTREAM, JAVA_IO_OBJECTOUTPUTSTREAM, JAVA_IO_OBJECTSTREAMEXCEPTION, JAVA_IO_PRINTSTREAM, JAVA_IO_SERIALIZABLE, JAVA_LANG, JAVA_LANG_ANNOTATION_ANNOTATION, JAVA_LANG_ANNOTATION_DOCUMENTED, JAVA_LANG_ANNOTATION_ELEMENTTYPE, JAVA_LANG_ANNOTATION_INHERITED, JAVA_LANG_ANNOTATION_RETENTION, JAVA_LANG_ANNOTATION_RETENTIONPOLICY, JAVA_LANG_ANNOTATION_TARGET, JAVA_LANG_ASSERTIONERROR, JAVA_LANG_AUTOCLOSEABLE, JAVA_LANG_BOOLEAN, JAVA_LANG_BYTE, JAVA_LANG_CHARACTER, JAVA_LANG_CLASS, JAVA_LANG_CLASSNOTFOUNDEXCEPTION, JAVA_LANG_CLONEABLE, JAVA_LANG_DEPRECATED, JAVA_LANG_DOUBLE, JAVA_LANG_ENUM, JAVA_LANG_ERROR, JAVA_LANG_EXCEPTION, JAVA_LANG_FLOAT, JAVA_LANG_ILLEGALARGUMENTEXCEPTION, JAVA_LANG_INTEGER, JAVA_LANG_INVOKE_METHODHANDLE_$_POLYMORPHICSIGNATURE, JAVA_LANG_INVOKE_METHODHANDLE_POLYMORPHICSIGNATURE, JAVA_LANG_ITERABLE, JAVA_LANG_LONG, JAVA_LANG_NOCLASSDEFERROR, JAVA_LANG_OBJECT, JAVA_LANG_OVERRIDE, JAVA_LANG_REFLECT_CONSTRUCTOR, JAVA_LANG_REFLECT_FIELD, JAVA_LANG_REFLECT_METHOD, JAVA_LANG_RUNTIMEEXCEPTION, JAVA_LANG_SAFEVARARGS, JAVA_LANG_SHORT, JAVA_LANG_STRING, JAVA_LANG_STRINGBUFFER, JAVA_LANG_STRINGBUILDER, JAVA_LANG_SUPPRESSWARNINGS, JAVA_LANG_SYSTEM, JAVA_LANG_THROWABLE, JAVA_LANG_VOID, JAVA_UTIL_COLLECTION, JAVA_UTIL_ITERATOR, JAVAX_RMI_CORBA_STUB, LANG, LENGTH, LONG, MAIN, MISMATCH, NULL, OBJECT, OK, PACKAGE_INFO_NAME, READOBJECT, READRESOLVE, REFLECT, SERIALPERSISTENTFIELDS, SERIALVERSIONUID, SHORT, SYNTHETIC_ACCESS_METHOD_PREFIX, SYNTHETIC_ASSERT_DISABLED, SYNTHETIC_CLASS, SYNTHETIC_ENCLOSING_INSTANCE_PREFIX, SYNTHETIC_ENUM_CONSTANT_INITIALIZATION_METHOD_PREFIX, SYNTHETIC_ENUM_VALUES, SYNTHETIC_OUTER_LOCAL_PREFIX, SYNTHETIC_STATIC_FACTORY, SYNTHETIC_SWITCH_ENUM_TABLE, TYPE, UNCHECKED, UPPER_ANNOTATION_TYPE, UPPER_CLASS, UPPER_CONSTRUCTOR, UPPER_FIELD, UPPER_LOCAL_VARIABLE, UPPER_METHOD, UPPER_PACKAGE, UPPER_PARAMETER, UPPER_RUNTIME, UPPER_SOURCE, UTIL, VALUE, VALUEOF, VALUES, VOID, WILDCARD_CAPTURE, WILDCARD_CAPTURE_NAME_PREFIX, WILDCARD_CAPTURE_NAME_SUFFIX, WILDCARD_EXTENDS, WILDCARD_MINUS, WILDCARD_NAME, WILDCARD_PLUS, WILDCARD_STAR, WILDCARD_SUPER, WRITEOBJECT, WRITEREPLACE
 
从接口 org.eclipse.jdt.internal.compiler.lookup.TypeIds 继承的字段
Boolean2Boolean, Boolean2Int, Boolean2String, BOXING, Byte2Byte, Byte2Char, Byte2Double, Byte2Float, Byte2Int, Byte2Long, Byte2Short, Byte2String, Char2Byte, Char2Char, Char2Double, Char2Float, Char2Int, Char2Long, Char2Short, Char2String, COMPILE_TYPE_MASK, Double2Byte, Double2Char, Double2Double, Double2Float, Double2Int, Double2Long, Double2Short, Double2String, Float2Byte, Float2Char, Float2Double, Float2Float, Float2Int, Float2Long, Float2Short, Float2String, IMPLICIT_CONVERSION_MASK, Int2Byte, Int2Char, Int2Double, Int2Float, Int2Int, Int2Long, Int2Short, Int2String, Long2Byte, Long2Char, Long2Double, Long2Float, Long2Int, Long2Long, Long2Short, Long2String, NoId, Null2Null, Null2String, Object2boolean, Object2byte, Object2char, Object2double, Object2float, Object2int, Object2long, Object2Object, Object2short, Object2String, Short2Byte, Short2Char, Short2Double, Short2Float, Short2Int, Short2Long, Short2Short, Short2String, String2String, T_boolean, T_byte, T_char, T_double, T_float, T_int, T_JavaIoException, T_JavaIoExternalizable, T_JavaIoObjectStreamException, T_JavaIoPrintStream, T_JavaIoSerializable, T_JavaLangAnnotationAnnotation, T_JavaLangAnnotationDocumented, T_JavaLangAnnotationElementType, T_JavaLangAnnotationInherited, T_JavaLangAnnotationRetention, T_JavaLangAnnotationRetentionPolicy, T_JavaLangAnnotationTarget, T_JavaLangAssertionError, T_JavaLangAutoCloseable, T_JavaLangBoolean, T_JavaLangByte, T_JavaLangCharacter, T_JavaLangClass, T_JavaLangClassNotFoundException, T_JavaLangCloneable, T_JavaLangDeprecated, T_JavaLangDouble, T_JavaLangEnum, T_JavaLangError, T_JavaLangException, T_JavaLangFloat, T_JavaLangIllegalArgumentException, T_JavaLangInteger, T_JavaLangInvokeMethodHandlePolymorphicSignature, T_JavaLangIterable, T_JavaLangLong, T_JavaLangNoClassDefError, T_JavaLangObject, T_JavaLangOverride, T_JavaLangReflectConstructor, T_JavaLangReflectField, T_JavaLangReflectMethod, T_JavaLangRuntimeException, T_JavaLangSafeVarargs, T_JavaLangShort, T_JavaLangString, T_JavaLangStringBuffer, T_JavaLangStringBuilder, T_JavaLangSuppressWarnings, T_JavaLangSystem, T_JavaLangThrowable, T_JavaLangVoid, T_JavaUtilCollection, T_JavaUtilIterator, T_long, T_null, T_short, T_undefined, T_void, UNBOXING
 
构造方法摘要
NullLiteral(int s, int e)
           
 
方法摘要
 void computeConstant()
           
 void generateCode(BlockScope currentScope, CodeStream codeStream, boolean valueRequired)
          Code generation for the null literal
 TypeBinding literalType(BlockScope scope)
           
 int nullStatus(FlowInfo flowInfo)
           
 Object reusableJSRTarget()
          Returns an object which can be used to identify identical JSR sequence targets (see TryStatement subroutine codegen) or null if not reusable
 char[] source()
           
 void traverse(ASTVisitor visitor, BlockScope scope)
          Traverse an expression in the context of a blockScope
 
从类 org.eclipse.jdt.internal.compiler.ast.MagicLiteral 继承的方法
isValidJavaStatement
 
从类 org.eclipse.jdt.internal.compiler.ast.Literal 继承的方法
analyseCode, printExpression, resolveType
 
从类 org.eclipse.jdt.internal.compiler.ast.Expression 继承的方法
analyseCode, checkCastTypesCompatibility, checkNPE, checkUnsafeCast, computeConversion, forcedToBeRaw, generateCode, generateOptimizedBoolean, generateOptimizedStringConcatenation, generateOptimizedStringConcatenationCreation, getDirectBinding, isCompactableOperation, isConstantValueOfTypeAssignableToType, isConstantValueRepresentable, isTypeReference, localVariableBinding, markAsNonNull, optimizedBooleanConstant, postConversionType, print, printStatement, resolve, resolveType, resolveTypeExpecting, setExpectedType, tagAsNeedCheckCast, tagAsUnnecessaryCast, toTypeReference, traverse
 
从类 org.eclipse.jdt.internal.compiler.ast.Statement 继承的方法
branchChainTo, checkAgainstNullAnnotation, complainIfUnreachable, expectedType, generateArguments, isBoxingCompatible, isEmptyBlock, isKnowDeadCodePattern, resolveCase
 
从类 org.eclipse.jdt.internal.compiler.ast.ASTNode 继承的方法
checkInvocationArguments, concreteStatement, isFieldUseDeprecated, isImplicitThis, isMethodUseDeprecated, isSuper, isThis, isTypeUseDeprecated, printAnnotations, printIndent, printModifiers, resolveAnnotations, resolveDeprecatedAnnotations, sourceEnd, sourceStart, toString
 
从类 java.lang.Object 继承的方法
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
 

构造方法详细信息

NullLiteral

public NullLiteral(int s,
                   int e)
方法详细信息

computeConstant

public void computeConstant()
指定者：
类 Literal 中的 computeConstant

generateCode

public void generateCode(BlockScope currentScope,
                         CodeStream codeStream,
                         boolean valueRequired)
Code generation for the null literal

覆盖：
类 Expression 中的 generateCode
参数：
currentScope - org.eclipse.jdt.internal.compiler.lookup.BlockScope
codeStream - org.eclipse.jdt.internal.compiler.codegen.CodeStream
valueRequired - boolean

literalType

public TypeBinding literalType(BlockScope scope)
指定者：
类 Literal 中的 literalType

nullStatus

public int nullStatus(FlowInfo flowInfo)
覆盖：
类 Expression 中的 nullStatus

reusableJSRTarget

public Object reusableJSRTarget()
从类 Expression 复制的描述
Returns an object which can be used to identify identical JSR sequence targets (see TryStatement subroutine codegen) or null if not reusable

覆盖：
类 Expression 中的 reusableJSRTarget

source

public char[] source()
覆盖：
类 MagicLiteral 中的 source

traverse

public void traverse(ASTVisitor visitor,
                     BlockScope scope)
从类 Expression 复制的描述
Traverse an expression in the context of a blockScope

覆盖：
类 Expression 中的 traverse
概述  软件包   类  使用  树  已过时  索引  帮助 
 上一个类   下一个类 框架    无框架    
摘要： 嵌套 | 字段 | 构造方法 | 方法 详细信息： 字段 | 构造方法 | 方法
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