Class CastExpression
java.lang.Object
org.aspectj.org.eclipse.jdt.internal.compiler.ast.ASTNode
org.aspectj.org.eclipse.jdt.internal.compiler.ast.Statement
org.aspectj.org.eclipse.jdt.internal.compiler.ast.Expression
org.aspectj.org.eclipse.jdt.internal.compiler.ast.CastExpression
- All Implemented Interfaces:
TypeConstants
,TypeIds
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Nested Class Summary
Nested classes/interfaces inherited from interface org.aspectj.org.eclipse.jdt.internal.compiler.lookup.TypeConstants
TypeConstants.BoundCheckStatus, TypeConstants.CloseMethodRecord, TypeConstants.DangerousMethod
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Field Summary
Modifier and TypeFieldDescriptionboolean
Fields inherited from class org.aspectj.org.eclipse.jdt.internal.compiler.ast.Expression
constant, implicitConversion, NO_EXPRESSIONS, resolvedType, statementEnd
Fields inherited from class org.aspectj.org.eclipse.jdt.internal.compiler.ast.Statement
COMPLAINED_FAKE_REACHABLE, COMPLAINED_UNREACHABLE, NOT_COMPLAINED
Fields inherited from class org.aspectj.org.eclipse.jdt.internal.compiler.ast.ASTNode
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, DocumentedCasesOmitted, DocumentedFallthrough, Empty, ErrorInSignature, FirstAssignmentToLocal, GenerateCheckcast, HasAbstractMethods, HasAllMethodBodies, HasBeenGenerated, HasBeenResolved, HasFunctionalInterfaceTypes, HasLocalType, HasSyntaxErrors, HasTypeAnnotations, IgnoreNoEffectAssignCheck, IgnoreRawTypeCheck, inModule, InsideExpressionStatement, InsideJavadoc, INVOCATION_ARGUMENT_OK, INVOCATION_ARGUMENT_UNCHECKED, INVOCATION_ARGUMENT_WILDCARD, IsAdditionalDeclarator, IsAnnotationDefaultValue, IsAnonymousType, IsAnySubRoutineEscaping, IsArgument, IsCanonicalConstructor, IsCapturedOuterLocal, IsCompoundAssigned, IsDefaultConstructor, IsDiamond, IsElseIfStatement, IsElseStatementUnreachable, IsForeachElementVariable, IsImplicit, IsImplicitThis, IsImplicitUnit, IsLocalDeclarationReachable, IsLocalType, IsMemberType, IsNonNull, IsReachable, IsRecovered, IsReturnedValue, IsSecondaryType, IsSecretYieldValueUsage, IsStrictlyAssigned, IsSubRoutineEscaping, IsSuperType, IsSynchronized, IsSynthetic, IsThenStatementUnreachable, IsTryBlockExiting, IsTypeElided, IsUnionType, IsUsedInPatternGuard, IsUsefulEmptyStatement, IsVarArgs, LabelUsed, NeededScope, NeedFreeReturn, NeedReceiverGenericCast, NO_ARGUMENTS, NO_RECORD_COMPONENTS, OnDemand, OperatorMASK, OperatorSHIFT, OverridingMethodWithSupercall, ParenthesizedMASK, ParenthesizedSHIFT, ResolveJavadoc, RestrictiveFlagMASK, ReturnTypeIDMASK, ShadowsOuterLocal, sourceEnd, sourceStart, SuperAccess, ThenExit, Unchecked, UndocumentedEmptyBlock, UnnecessaryCast, UnsafeCast, Used
Fields inherited from interface org.aspectj.org.eclipse.jdt.internal.compiler.lookup.TypeConstants
ANNOTATION, ANNOTATION_PREFIX, ANNOTATION_SUFFIX, ANONYM_PREFIX, ANONYM_SUFFIX, ANONYMOUS_METHOD, APACHE, APACHE_DBUTILS, APACHE_IOUTILS, API, ASSERT_CLASS, ASSERT_FALSE, ASSERT_NOTNULL, ASSERT_NULL, ASSERT_TRUE, ASSERTIONS_CLASS, AUTOMATIC_MODULE_NAME, AUTOWIRED, BEANS, BOOLEAN, BYTE, CAPTURE18, CHANNELS, 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, CharArray_JAVA_LANG_RECORD, CharArray_JAVA_LANG_RECORD_SLASH, CHECK_ARGUMENT, CHECK_NOT_NULL, CHECK_STATE, CLINIT, CLONE, CLOSE, CLOSE_QUIETLY, closeMethods, COM, COM_GOOGLE_COMMON_BASE_PRECONDITIONS, COM_GOOGLE_INJECT_INJECT, COMMONS, COMPILER, CONSTRAINT_EQUAL, CONSTRAINT_EXTENDS, CONSTRAINT_SUPER, CONTAINS, CONTAINS_ALL, CONTAINS_KEY, CONTAINS_VALUE, CORE, DEFAULT_LOCATION__ARRAY_CONTENTS, DEFAULT_LOCATION__FIELD, DEFAULT_LOCATION__PARAMETER, DEFAULT_LOCATION__RETURN_TYPE, DEFAULT_LOCATION__TYPE_ARGUMENT, DEFAULT_LOCATION__TYPE_BOUND, DEFAULT_LOCATION__TYPE_PARAMETER, DESERIALIZE_LAMBDA, DOM, DOUBLE, ECLIPSE, EQUALS, ESSENTIAL_API, FACTORY, FLOAT, FLUENT_RESOURCE_CLASSES, FOR_REMOVAL, FRAMEWORK, GET, GETCLASS, GOOGLE, GUAVA_CLOSEABLES, HASHCODE, IMPLEMENTS, INDEX_OF, INIT, INJECT_PACKAGE, INJECT_TYPE, INT, INTERNAL, INVOKE, IO, IS_INSTANCE, IS_NOTNULL, IS_NULL, IS_TRUE, ITYPEBINDING, JAVA, JAVA_BASE, JAVA_IO, JAVA_IO_CLOSEABLE, JAVA_IO_EXTERNALIZABLE, JAVA_IO_IOEXCEPTION, JAVA_IO_OBJECTINPUTSTREAM, JAVA_IO_OBJECTOUTPUTSTREAM, JAVA_IO_OBJECTSTREAMEXCEPTION, JAVA_IO_PRINTSTREAM, JAVA_IO_RESOURCE_FREE_CLOSEABLES, JAVA_IO_SERIALIZABLE, JAVA_IO_WRAPPER_CLOSEABLES, JAVA_LANG, JAVA_LANG_ANNOTATION, JAVA_LANG_ANNOTATION_ANNOTATION, JAVA_LANG_ANNOTATION_DOCUMENTED, JAVA_LANG_ANNOTATION_ELEMENTTYPE, JAVA_LANG_ANNOTATION_INHERITED, JAVA_LANG_ANNOTATION_REPEATABLE, 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_FUNCTIONAL_INTERFACE, JAVA_LANG_ILLEGALARGUMENTEXCEPTION, JAVA_LANG_INCOMPATIBLECLASSCHANGEERROR, JAVA_LANG_INTEGER, JAVA_LANG_INVOKE_LAMBDAMETAFACTORY, JAVA_LANG_INVOKE_METHODHANDLE_$_POLYMORPHICSIGNATURE, JAVA_LANG_INVOKE_METHODHANDLE_POLYMORPHICSIGNATURE, JAVA_LANG_INVOKE_METHODHANDLES, JAVA_LANG_INVOKE_SERIALIZEDLAMBDA, JAVA_LANG_ITERABLE, JAVA_LANG_LONG, JAVA_LANG_NOCLASSDEFERROR, JAVA_LANG_NOSUCHFIELDERROR, JAVA_LANG_OBJECT, JAVA_LANG_OVERRIDE, JAVA_LANG_RECORD, JAVA_LANG_REFLECT_CONSTRUCTOR, JAVA_LANG_REFLECT_FIELD, JAVA_LANG_REFLECT_METHOD, JAVA_LANG_RUNTIME_OBJECTMETHODS, JAVA_LANG_RUNTIME_SWITCHBOOTSTRAPS, 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_NIO_FILE_FILES, JAVA_UTIL_ARRAYS, JAVA_UTIL_COLLECTION, JAVA_UTIL_ITERATOR, JAVA_UTIL_LIST, JAVA_UTIL_MAP, JAVA_UTIL_OBJECTS, JAVA_UTIL_STREAM, JAVA_UTIL_ZIP_WRAPPER_CLOSEABLES, JAVAC, JAVAX, JAVAX_ANNOTATION_INJECT_INJECT, JAVAX_RMI_CORBA_STUB, JDK, JDK_INTERNAL_JAVAC_PREVIEW_FEATURE, JDK_INTERNAL_PREVIEW_FEATURE, JDK_INTERNAL_VALUEBASED, JDT, JUNIT, JUNIT_FRAMEWORK_ASSERT, JUPITER, KEYWORD_EXTENDS, LAMBDA_TYPE, LANG, LANG3, LAST_INDEX_OF, LENGTH, LONG, LOOKUP, MAIN, META_INF_MANIFEST_MF, METHOD_SOURCE, MODULE_INFO_CLASS_NAME, MODULE_INFO_CLASS_NAME_STRING, MODULE_INFO_FILE_NAME, MODULE_INFO_FILE_NAME_STRING, MODULE_INFO_NAME, MODULE_INFO_NAME_STRING, NEXT, NIO, NON_NULL, NOT_NULL, NULL, OBJECT, ONE_UTIL_STREAMEX, OPTIONAL, ORG, ORG_APACHE_COMMONS_LANG_VALIDATE, ORG_APACHE_COMMONS_LANG3_VALIDATE, ORG_ECLIPSE_CORE_RUNTIME_ASSERT, ORG_ECLIPSE_JDT_CORE_DOM_ITYPEBINDING, ORG_ECLIPSE_JDT_INTERNAL_COMPILER_LOOKUP_TYPEBINDING, ORG_JUNIT_ASSERT, ORG_JUNIT_JUPITER_API_ASSERTIONS, ORG_JUNIT_METHOD_SOURCE, ORG_SPRING_AUTOWIRED, OTHER_WRAPPER_CLOSEABLES, PACKAGE_INFO_NAME, PARAMS, PERMITS, PROVIDER, READOBJECT, READRESOLVE, RECORD_CLASS, RECORD_RESTRICTED_IDENTIFIER, REFLECT, REMOVE, REMOVE_ALL, REQUIRE_NON_NULL, REQUIRED, RESOURCE_FREE_CLOSEABLE_J_U_STREAMS, RESOURCE_FREE_CLOSEABLE_STREAMEX, RETAIN_ALL, RUNTIME, SEALED, SERIALPERSISTENTFIELDS, SERIALVERSIONUID, SHORT, SINCE, SPRING, 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, TOSTRING, TYPE, TYPE_PARAMETER_TARGET, TYPE_USE_TARGET, TYPEBINDING, UPPER_ANNOTATION_TYPE, UPPER_CLASS, UPPER_CONSTRUCTOR, UPPER_FIELD, UPPER_LOCAL_VARIABLE, UPPER_METHOD, UPPER_MODULE, UPPER_PACKAGE, UPPER_PARAMETER, UPPER_RECORD_COMPONENT, UPPER_RUNTIME, UPPER_SOURCE, UTIL, VALIDATE_CLASS, VALUE, VALUEOF, VALUES, VAR, VOID, WILDCARD_CAPTURE, WILDCARD_CAPTURE_NAME_PREFIX, WILDCARD_CAPTURE_NAME_SUFFIX, WILDCARD_CAPTURE_SIGNABLE_NAME_SUFFIX, WILDCARD_EXTENDS, WILDCARD_MINUS, WILDCARD_NAME, WILDCARD_PLUS, WILDCARD_STAR, WILDCARD_SUPER, WRITEOBJECT, WRITEREPLACE, YIELD, ZIP
Fields inherited from interface org.aspectj.org.eclipse.jdt.internal.compiler.lookup.TypeIds
BitAnyNullAnnotation, BitAutoCloseable, BitCloseable, BitCollection, BitList, BitMap, BitNonNullAnnotation, BitNonNullByDefaultAnnotation, BitNullableAnnotation, BitResourceFreeCloseable, BitUninitialized, BitUninternedType, BitWrapperCloseable, 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, InheritableBits, 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_ComGoogleCommonBasePreconditions, T_ComGoogleInjectInject, 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_JavaLangAnnotationRepeatable, 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_JavaLangFunctionalInterface, T_JavaLangIllegalArgumentException, T_JavaLangInteger, T_JavaLangInvokeMethodHandlePolymorphicSignature, T_JavaLangIterable, T_JavaLangLong, T_JavaLangNoClassDefError, T_JavaLangObject, T_JavaLangOverride, T_JavaLangRecord, 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_JavaUtilList, T_JavaUtilMap, T_JavaUtilObjects, T_JavaxInjectInject, T_JdkInternalPreviewFeature, T_JunitFrameworkAssert, T_LastWellKnownTypeId, T_long, T_null, T_OrgApacheCommonsLang3Validate, T_OrgApacheCommonsLangValidate, T_OrgEclipseCoreRuntimeAssert, T_OrgJunitAssert, T_OrgJunitJupiterApiAssertions, T_OrgJunitJupiterParamsProviderMethodSource, T_OrgSpringframeworkBeansFactoryAnnotationAutowired, T_short, T_undefined, T_void, UNBOXING
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Constructor Summary
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Method Summary
Modifier and TypeMethodDescriptionanalyseCode(BlockScope currentScope, FlowContext flowContext, FlowInfo flowInfo)
static void
checkNeedForArgumentCast(BlockScope scope, int operator, int operatorSignature, Expression expression, int expressionTypeId)
Only complain for identity cast, since other type of casts may be useful: e.g.static void
checkNeedForArgumentCasts(BlockScope scope, int operator, int operatorSignature, Expression left, int leftTypeId, boolean leftIsCast, Expression right, int rightTypeId, boolean rightIsCast)
Check binary operator casted argumentsstatic void
checkNeedForArgumentCasts(BlockScope scope, Expression receiver, TypeBinding receiverType, MethodBinding binding, Expression[] arguments, TypeBinding[] argumentTypes, InvocationSite invocationSite)
Cast expressions will considered as useful if removing them all would actually bind to a different method (no fine grain analysis on per casted argument basis, simply separate widening cast from narrowing ones)static void
checkNeedForAssignedCast(BlockScope scope, TypeBinding expectedType, CastExpression rhs)
Complain if assigned expression is cast, but not actually used as such, e.g.static void
checkNeedForCastCast(BlockScope scope, CastExpression enclosingCast)
Complain if cast expression is cast, but not actually needed, int i = (int)(Integer) 12; Note that this (int) cast is however needed: Integer i = 0; char c = (char)((int) i);static void
checkNeedForEnclosingInstanceCast(BlockScope scope, Expression enclosingInstance, TypeBinding enclosingInstanceType, TypeBinding memberType)
Casting an enclosing instance will considered as useful if removing it would actually bind to a different typeboolean
checkNPE(BlockScope scope, FlowContext flowContext, FlowInfo flowInfo, int ttlForFieldCheck)
Check this expression against potential NPEs, which may occur: if the expression is the receiver in a field access, qualified allocation, array reference or message send incl. implicit message sends like it happens for the collection in a foreach statement. if the expression is subject to unboxing if the expression is the exception in a throw statement If a risk of NPE is detected report it to the context.static boolean
checkUnsafeCast(Expression expression, Scope scope, TypeBinding castType, TypeBinding expressionType, TypeBinding match, boolean isNarrowing)
boolean
checkUnsafeCast(Scope scope, TypeBinding castType, TypeBinding expressionType, TypeBinding match, boolean isNarrowing)
void
generateCode(BlockScope currentScope, CodeStream codeStream, boolean valueRequired)
Cast expression code generationReturns the local variable referenced by this node.int
nullStatus(FlowInfo flowInfo, FlowContext flowContext)
Constant usable for bytecode pattern optimizations, but cannot be inlined since it is not strictly equivalent to the definition of constant expressions.printExpression(int indent, StringBuffer output)
resolveType(BlockScope scope)
Resolve the type of this expression in the context of a blockScopevoid
setExpectedType(TypeBinding expectedType)
Record the type expectation before this expression is typechecked.void
setInstanceofType(TypeBinding instanceofTypeBinding)
void
setVarTypeDeclaration(boolean value)
void
void
tagAsUnnecessaryCast(Scope scope, TypeBinding castType)
Record the fact a cast expression got detected as being unnecessary.void
traverse(ASTVisitor visitor, BlockScope blockScope)
Traverse an expression in the context of a blockScopeMethods inherited from class org.aspectj.org.eclipse.jdt.internal.compiler.ast.Expression
addPatternVariables, analyseCode, checkCastTypesCompatibility, checkNPE, checkNPEbyUnboxing, collectPatternVariablesToScope, computeConversion, computeNullStatus, forcedToBeRaw, generateCode, generateOptimizedBoolean, generateOptimizedStringConcatenation, generateOptimizedStringConcatenationCreation, getDirectBinding, getPatternVariableIntroduced, getPolyExpressions, isBoxingCompatibleWith, isCompactableOperation, isCompatibleWith, isConstantValueOfTypeAssignableToType, isConstantValueRepresentable, isExactMethodReference, isFunctionalType, isPertinentToApplicability, isPolyExpression, isPolyExpression, isPotentiallyCompatibleWith, isTrulyExpression, isTypeReference, markAsNonNull, nullAnnotatedVariableBinding, optimizedNullComparisonConstant, postConversionType, print, printStatement, resolve, resolveExpressionExpecting, resolveExpressionType, resolveType, resolveTypeExpecting, reusableJSRTarget, setExpressionContext, sIsMoreSpecific, statementExpression, toTypeReference, traverse, updateFlowOnBooleanResult
Methods inherited from class org.aspectj.org.eclipse.jdt.internal.compiler.ast.Statement
addPatternVariablesWhenFalse, addPatternVariablesWhenTrue, analyseArguments, branchChainTo, breaksOut, canCompleteNormally, checkAgainstNullTypeAnnotation, complainIfUnreachable, completesByContinue, containsPatternVariable, continueCompletes, continuesAtOuterLabel, doesNotCompleteNormally, doNotReportUnreachable, expectedType, findConstructorBinding, generateArguments, getExpressionContext, getPatternVariablesWhenFalse, getPatternVariablesWhenTrue, invocationTargetType, isBoxingCompatible, isEmptyBlock, isKnowDeadCodePattern, isValidJavaStatement, promotePatternVariablesIfApplicable, resolveWithPatternVariablesInScope
Methods inherited from class org.aspectj.org.eclipse.jdt.internal.compiler.ast.ASTNode
acceptPotentiallyCompatibleMethods, checkingPotentialCompatibility, checkInvocationArguments, concreteStatement, copyRecordComponentAnnotations, copySE8AnnotationsToType, getRelevantAnnotations, handleNonNullByDefault, isFieldUseDeprecated, isImplicitThis, isMethodUseDeprecated, isQualifiedSuper, isSuper, isThis, isType, isTypeUseDeprecated, isUnqualifiedSuper, printAnnotations, printIndent, printModifiers, receiverIsImplicitThis, resolveAnnotations, resolveAnnotations, resolveAnnotations, resolveDeprecatedAnnotations, resolvePolyExpressionArguments, sourceEnd, sourceStart, toString
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Field Details
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expression
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type
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expectedType
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instanceofType
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isVarTypeDeclaration
public boolean isVarTypeDeclaration
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Constructor Details
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CastExpression
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Method Details
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analyseCode
- Overrides:
analyseCode
in classExpression
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checkNeedForAssignedCast
public static void checkNeedForAssignedCast(BlockScope scope, TypeBinding expectedType, CastExpression rhs)Complain if assigned expression is cast, but not actually used as such, e.g. Object o = (List) object; -
checkNeedForCastCast
Complain if cast expression is cast, but not actually needed, int i = (int)(Integer) 12; Note that this (int) cast is however needed: Integer i = 0; char c = (char)((int) i); -
checkNeedForEnclosingInstanceCast
public static void checkNeedForEnclosingInstanceCast(BlockScope scope, Expression enclosingInstance, TypeBinding enclosingInstanceType, TypeBinding memberType)Casting an enclosing instance will considered as useful if removing it would actually bind to a different type -
checkNeedForArgumentCast
public static void checkNeedForArgumentCast(BlockScope scope, int operator, int operatorSignature, Expression expression, int expressionTypeId)Only complain for identity cast, since other type of casts may be useful: e.g. ~((~(long) 0) << 32) is different from: ~((~0) << 32) -
checkNeedForArgumentCasts
public static void checkNeedForArgumentCasts(BlockScope scope, Expression receiver, TypeBinding receiverType, MethodBinding binding, Expression[] arguments, TypeBinding[] argumentTypes, InvocationSite invocationSite)Cast expressions will considered as useful if removing them all would actually bind to a different method (no fine grain analysis on per casted argument basis, simply separate widening cast from narrowing ones) -
checkNeedForArgumentCasts
public static void checkNeedForArgumentCasts(BlockScope scope, int operator, int operatorSignature, Expression left, int leftTypeId, boolean leftIsCast, Expression right, int rightTypeId, boolean rightIsCast)Check binary operator casted arguments -
checkNPE
public boolean checkNPE(BlockScope scope, FlowContext flowContext, FlowInfo flowInfo, int ttlForFieldCheck)Description copied from class:Expression
Check this expression against potential NPEs, which may occur:- if the expression is the receiver in a field access, qualified allocation, array reference or message send incl. implicit message sends like it happens for the collection in a foreach statement.
- if the expression is subject to unboxing
- if the expression is the exception in a throw statement
- Overrides:
checkNPE
in classExpression
- Parameters:
scope
- the scope of the analysisflowContext
- the current flow contextflowInfo
- the upstream flow info; caveat: may get modifiedttlForFieldCheck
- if this is a reference to a field we will mark that field as nonnull for the specified timeToLive- Returns:
- could this expression be checked by the current implementation?
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checkUnsafeCast
public boolean checkUnsafeCast(Scope scope, TypeBinding castType, TypeBinding expressionType, TypeBinding match, boolean isNarrowing)- Overrides:
checkUnsafeCast
in classExpression
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checkUnsafeCast
public static boolean checkUnsafeCast(Expression expression, Scope scope, TypeBinding castType, TypeBinding expressionType, TypeBinding match, boolean isNarrowing) -
generateCode
Cast expression code generation- Overrides:
generateCode
in classExpression
- Parameters:
currentScope
- org.aspectj.org.eclipse.jdt.internal.compiler.lookup.BlockScopecodeStream
- org.aspectj.org.eclipse.jdt.internal.compiler.codegen.CodeStreamvalueRequired
- boolean
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innermostCastedExpression
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localVariableBinding
Description copied from class:Expression
Returns the local variable referenced by this node. Can be a direct reference (SingleNameReference) or thru a cast expression etc...- Overrides:
localVariableBinding
in classExpression
- See Also:
Expression.localVariableBinding()
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nullStatus
- Overrides:
nullStatus
in classExpression
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optimizedBooleanConstant
Description copied from class:Expression
Constant usable for bytecode pattern optimizations, but cannot be inlined since it is not strictly equivalent to the definition of constant expressions. In particular, some side-effects may be required to occur (only the end value is known).- Overrides:
optimizedBooleanConstant
in classExpression
- Returns:
- Constant known to be of boolean type
- See Also:
Expression.optimizedBooleanConstant()
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printExpression
- Specified by:
printExpression
in classExpression
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resolveType
Description copied from class:Expression
Resolve the type of this expression in the context of a blockScope- Overrides:
resolveType
in classExpression
- Returns:
- Return the actual type of this expression after resolution
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setExpectedType
Description copied from class:Expression
Record the type expectation before this expression is typechecked. e.g. String s = foo();, foo() will be tagged as being expected of type String Used to trigger proper inference of generic method invocations.- Overrides:
setExpectedType
in classExpression
- Parameters:
expectedType
- The type denoting an expectation in the context of an assignment conversion- See Also:
Expression.setExpectedType(org.aspectj.org.eclipse.jdt.internal.compiler.lookup.TypeBinding)
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tagAsNeedCheckCast
public void tagAsNeedCheckCast()- Overrides:
tagAsNeedCheckCast
in classExpression
- See Also:
Expression.tagAsNeedCheckCast()
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tagAsUnnecessaryCast
Description copied from class:Expression
Record the fact a cast expression got detected as being unnecessary.- Overrides:
tagAsUnnecessaryCast
in classExpression
- See Also:
Expression.tagAsUnnecessaryCast(Scope, TypeBinding)
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setInstanceofType
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setVarTypeDeclaration
public void setVarTypeDeclaration(boolean value) -
traverse
Description copied from class:Expression
Traverse an expression in the context of a blockScope- Overrides:
traverse
in classExpression
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