org.eclipse.jdt.internal.compiler.ast

Class MessageSend

java.lang.Object

org.eclipse.jdt.internal.compiler.ast.ASTNode

org.eclipse.jdt.internal.compiler.ast.Statement

org.eclipse.jdt.internal.compiler.ast.Expression

org.eclipse.jdt.internal.compiler.ast.MessageSend

All Implemented Interfaces:

InvocationSite, TypeConstants, TypeIds

Direct Known Subclasses:

JavadocMessageSend

public class MessageSend
extends Expression
implements InvocationSite

Nested Class Summary

Nested classes/interfaces inherited from interface org.eclipse.jdt.internal.compiler.lookup.InvocationSite

InvocationSite.EmptyWithAstNode

Nested classes/interfaces inherited from interface org.eclipse.jdt.internal.compiler.lookup.TypeConstants

TypeConstants.CloseMethodRecord

Field Summary

Fields

Modifier and Type	Field and Description
TypeBinding	actualReceiverType
Expression[]	arguments
MethodBinding	binding
TypeBinding	expectedType
TypeBinding[]	genericTypeArguments
long	nameSourcePosition
Expression	receiver
char[]	selector
MethodBinding	syntheticAccessor
TypeReference[]	typeArguments
TypeBinding	valueCast

Fields inherited from class org.eclipse.jdt.internal.compiler.ast.Expression

constant, implicitConversion, resolvedType, statementEnd

Fields inherited from class org.eclipse.jdt.internal.compiler.ast.Statement

COMPLAINED_FAKE_REACHABLE, COMPLAINED_UNREACHABLE, NOT_COMPLAINED

Fields inherited from class 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, HasLocalType, HasSyntaxErrors, IgnoreNoEffectAssignCheck, IgnoreRawTypeCheck, InsideExpressionStatement, InsideJavadoc, INVOCATION_ARGUMENT_OK, INVOCATION_ARGUMENT_UNCHECKED, INVOCATION_ARGUMENT_WILDCARD, IsAnnotationDefaultValue, IsAnonymousType, IsAnySubRoutineEscaping, IsArgument, IsCompoundAssigned, IsDefaultConstructor, IsDiamond, IsElseIfStatement, IsElseStatementUnreachable, IsForeachElementVariable, IsImplicitThis, IsImplicitUnit, IsLocalDeclarationReachable, IsLocalType, IsMemberType, IsNonNull, IsReachable, IsRecovered, IsReturnedValue, IsSecondaryType, IsStrictlyAssigned, IsSubRoutineEscaping, IsSuperType, IsSynchronized, IsSynthetic, 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

Fields inherited from interface org.eclipse.jdt.internal.compiler.lookup.TypeConstants

ANNOTATION, ANNOTATION_PREFIX, ANNOTATION_SUFFIX, ANONYM_PREFIX, ANONYM_SUFFIX, APACHE, APACHE_IOUTILS, ASSERT_CLASS, ASSERT_FALSE, ASSERT_NOTNULL, ASSERT_NULL, ASSERT_TRUE, 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, CHECK_ARGUMENT, CHECK_NOT_NULL, CHECK_STATE, CLINIT, CLONE, CLOSE, CLOSE_QUIETLY, closeMethods, COM, COM_GOOGLE_COMMON_BASE_PRECONDITIONS, COM_GOOGLE_INJECT_INJECT, COMMONS, CONSTRAINT_EQUAL, CONSTRAINT_EXTENDS, CONSTRAINT_SUPER, CORE, DOUBLE, ECLIPSE, EQUALS, FLOAT, FRAMEWORK, GETCLASS, GOOGLE, GUAVA_CLOSEABLES, HASHCODE, INIT, INJECT_PACKAGE, INJECT_TYPE, INT, INVOKE, IO, IS_NOTNULL, IS_TRUE, JAVA, 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_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, JAVA_UTIL_OBJECTS, JAVA_UTIL_ZIP_WRAPPER_CLOSEABLES, JAVAX, JAVAX_ANNOTATION_INJECT_INJECT, JAVAX_RMI_CORBA_STUB, JUNIT, JUNIT_FRAMEWORK_ASSERT, LANG, LANG3, LENGTH, LONG, MAIN, MISMATCH, NOT_NULL, NULL, OBJECT, OK, OPTIONAL, ORG, ORG_APACHE_COMMONS_LANG_VALIDATE, ORG_APACHE_COMMONS_LANG3_VALIDATE, ORG_ECLIPSE_CORE_RUNTIME_ASSERT, ORG_JUNIT_ASSERT, OTHER_WRAPPER_CLOSEABLES, PACKAGE_INFO_NAME, READOBJECT, READRESOLVE, REFLECT, REQUIRE_NON_NULL, RUNTIME, 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, VALIDATE_CLASS, 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, ZIP

Fields inherited from interface org.eclipse.jdt.internal.compiler.lookup.TypeIds

BitAutoCloseable, BitCloseable, BitResourceFreeCloseable, BitUninitialized, 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_ConfiguredAnnotationNonNull, T_ConfiguredAnnotationNonNullByDefault, T_ConfiguredAnnotationNullable, 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_JavaUtilObjects, T_JavaxInjectInject, T_JunitFrameworkAssert, T_long, T_null, T_OrgApacheCommonsLang3Validate, T_OrgApacheCommonsLangValidate, T_OrgEclipseCoreRuntimeAssert, T_OrgJunitAssert, T_short, T_undefined, T_void, UNBOXING

Constructor Summary

Constructors

Constructor and Description
MessageSend()

Method Summary

Methods

Modifier and Type	Method and Description
FlowInfo	analyseCode(BlockScope currentScope, FlowContext flowContext, FlowInfo flowInfo)
boolean	checkNPE(BlockScope scope, FlowContext flowContext, FlowInfo flowInfo) 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.
void	computeConversion(Scope scope, TypeBinding runtimeTimeType, TypeBinding compileTimeType) Base types need that the widening is explicitly done by the compiler using some bytecode like i2f.
TypeBinding	expectedType() Implementation of InvocationSite.expectedType() suitable at this level.
void	generateCode(BlockScope currentScope, CodeStream codeStream, boolean valueRequired) MessageSend code generation
TypeBinding[]	genericTypeArguments()
boolean	isSuperAccess()
boolean	isTypeAccess()
void	manageSyntheticAccessIfNecessary(BlockScope currentScope, FlowInfo flowInfo)
int	nullStatus(FlowInfo flowInfo, FlowContext flowContext)
TypeBinding	postConversionType(Scope scope) Returns the type of the expression after required implicit conversions.
StringBuffer	printExpression(int indent, StringBuffer output)
TypeBinding	resolveType(BlockScope scope) Resolve the type of this expression in the context of a blockScope
void	setActualReceiverType(ReferenceBinding receiverType)
void	setDepth(int depth)
void	setExpectedType(TypeBinding expectedType) Record the type expectation before this expression is typechecked.
void	setFieldIndex(int depth)
void	traverse(ASTVisitor visitor, BlockScope blockScope) Traverse an expression in the context of a blockScope

Methods inherited from class org.eclipse.jdt.internal.compiler.ast.Expression

analyseCode, checkCastTypesCompatibility, checkNPEbyUnboxing, checkUnsafeCast, forcedToBeRaw, generateCode, generateOptimizedBoolean, generateOptimizedStringConcatenation, generateOptimizedStringConcatenationCreation, getDirectBinding, isCompactableOperation, isConstantValueOfTypeAssignableToType, isConstantValueRepresentable, isTypeReference, localVariableBinding, markAsNonNull, nullAnnotatedVariableBinding, optimizedBooleanConstant, print, printStatement, resolve, resolveType, resolveTypeExpecting, reusableJSRTarget, tagAsNeedCheckCast, tagAsUnnecessaryCast, toTypeReference, traverse

Methods inherited from class org.eclipse.jdt.internal.compiler.ast.Statement

analyseArguments, branchChainTo, checkAssignmentAgainstNullAnnotation, complainIfUnreachable, generateArguments, isBoxingCompatible, isEmptyBlock, isKnowDeadCodePattern, isValidJavaStatement, resolveCase

Methods inherited from class org.eclipse.jdt.internal.compiler.ast.ASTNode

checkInvocationArguments, concreteStatement, isFieldUseDeprecated, isImplicitThis, isMethodUseDeprecated, isSuper, isThis, isTypeUseDeprecated, printAnnotations, printIndent, printModifiers, resolveAnnotations, resolveDeprecatedAnnotations, sourceEnd, sourceStart, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.eclipse.jdt.internal.compiler.lookup.InvocationSite

sourceEnd, sourceStart

Field Detail

receiver

public Expression receiver

selector

public char[] selector

arguments

public Expression[] arguments

binding

public MethodBinding binding

syntheticAccessor

public MethodBinding syntheticAccessor

expectedType

public TypeBinding expectedType

nameSourcePosition

public long nameSourcePosition

actualReceiverType

public TypeBinding actualReceiverType

valueCast

public TypeBinding valueCast

typeArguments

public TypeReference[] typeArguments

genericTypeArguments

public TypeBinding[] genericTypeArguments

Constructor Detail

MessageSend

public MessageSend()

Method Detail

analyseCode

public FlowInfo analyseCode(BlockScope currentScope,
                   FlowContext flowContext,
                   FlowInfo flowInfo)

Overrides:

analyseCode in class Expression

checkNPE

public boolean checkNPE(BlockScope scope,
               FlowContext flowContext,
               FlowInfo flowInfo)

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

If a risk of NPE is detected report it to the context. If the expression denotes a local variable, mark it as checked, which affects the flow info.

Overrides:

checkNPE in class Expression

Parameters:

scope - the scope of the analysis

flowContext - the current flow context

flowInfo - the upstream flow info; caveat: may get modified

Returns:

could this expression be checked by the current implementation?

computeConversion

public void computeConversion(Scope scope,
                     TypeBinding runtimeTimeType,
                     TypeBinding compileTimeType)

Description copied from class: Expression

Base types need that the widening is explicitly done by the compiler using some bytecode like i2f. Also check unsafe type operations.

Overrides:

computeConversion in class Expression

See Also:

Expression.computeConversion(org.eclipse.jdt.internal.compiler.lookup.Scope, org.eclipse.jdt.internal.compiler.lookup.TypeBinding, org.eclipse.jdt.internal.compiler.lookup.TypeBinding)

generateCode

public void generateCode(BlockScope currentScope,
                CodeStream codeStream,
                boolean valueRequired)

MessageSend code generation

Overrides:

generateCode in class Expression

Parameters:

currentScope - org.eclipse.jdt.internal.compiler.lookup.BlockScope

codeStream - org.eclipse.jdt.internal.compiler.codegen.CodeStream

valueRequired - boolean

genericTypeArguments

public TypeBinding[] genericTypeArguments()

Specified by:

genericTypeArguments in interface InvocationSite

See Also:

InvocationSite.genericTypeArguments()

isSuperAccess

public boolean isSuperAccess()

Specified by:

isSuperAccess in interface InvocationSite

isTypeAccess

public boolean isTypeAccess()

Specified by:

isTypeAccess in interface InvocationSite

manageSyntheticAccessIfNecessary

public void manageSyntheticAccessIfNecessary(BlockScope currentScope,
                                    FlowInfo flowInfo)

nullStatus

public int nullStatus(FlowInfo flowInfo,
             FlowContext flowContext)

Overrides:

nullStatus in class Expression

postConversionType

public TypeBinding postConversionType(Scope scope)

Description copied from class: Expression

Returns the type of the expression after required implicit conversions. When expression type gets promoted or inserted a generic cast, the converted type will differ from the resolved type (surface side-effects from #computeConversion(...)).

Overrides:

postConversionType in class Expression

Returns:

the type after implicit conversion

See Also:

Expression.postConversionType(Scope)

printExpression

public StringBuffer printExpression(int indent,
                           StringBuffer output)

Specified by:

printExpression in class Expression

resolveType

public TypeBinding resolveType(BlockScope scope)

Description copied from class: Expression

Resolve the type of this expression in the context of a blockScope

Overrides:

resolveType in class Expression

Returns:

Return the actual type of this expression after resolution

setActualReceiverType

public void setActualReceiverType(ReferenceBinding receiverType)

Specified by:

setActualReceiverType in interface InvocationSite

setDepth

public void setDepth(int depth)

Specified by:

setDepth in interface InvocationSite

setExpectedType

public void setExpectedType(TypeBinding expectedType)

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 class Expression

Parameters:

expectedType - The type denoting an expectation in the context of an assignment conversion

See Also:

Expression.setExpectedType(org.eclipse.jdt.internal.compiler.lookup.TypeBinding)

setFieldIndex

public void setFieldIndex(int depth)

Specified by:

setFieldIndex in interface InvocationSite

expectedType

public TypeBinding expectedType()

Description copied from class: Statement

Implementation of InvocationSite.expectedType() suitable at this level. Subclasses should override as necessary.

Specified by:

expectedType in interface InvocationSite

Overrides:

expectedType in class Statement

See Also:

InvocationSite.expectedType()

traverse

public void traverse(ASTVisitor visitor,
            BlockScope blockScope)

Description copied from class: Expression

Traverse an expression in the context of a blockScope

Overrides:

traverse in class Expression