org.aspectj.compiler.base.ast
Class ThisExpr

java.lang.Object
  org.aspectj.compiler.base.CompilerObject
      org.aspectj.compiler.base.ast.ASTObject
          org.aspectj.compiler.base.ast.Expr
              org.aspectj.compiler.base.ast.JavaExpr
                  org.aspectj.compiler.base.ast.ThisExpr

All Implemented Interfaces:

MajPrimaryExpr

Direct Known Subclasses:

QualifiedThisExpr

public class ThisExpr

extends JavaExpr

implements MajPrimaryExpr

Field Summary

Fields inherited from class org.aspectj.compiler.base.ast.Expr

type

Fields inherited from class org.aspectj.compiler.base.ast.ASTObject

dummySource, parent, sourceLocation

Constructor Summary

ThisExpr()

ThisExpr(SourceLocation location)

ThisExpr(SourceLocation source, Type type)

Method Summary

boolean	canBeCopied() Can this expression be copied without changing the semantics of the program.
protected void	cgEffect(org.aspectj.compiler.base.bcg.CodeBuilder cb) Evaluates the expression in a context where its value is unnecessary (i.e., from ExprStmt, or in a FieldAccessExpr when the field is static but there is an expression there nonetheless).
protected void	cgValue(org.aspectj.compiler.base.bcg.CodeBuilder cb) Leaves the value of this expression on the stack.
ASTObject	copyWalk(CopyWalker walker)
Type	discoverType()
java.lang.String	getDefaultDisplayName()
boolean	isUltimatelyLiteral() Is this expression ultimately a literal expression.
Expr	makeReference() When called for the first time will return an expression that may involve computation and state changes.
void	postInnerInfo(org.aspectj.compiler.base.InnerInfoPass walker)
ASTObject	postMove(MovingWalker walker)
Expr	toExpr()
void	unparse(org.aspectj.compiler.base.CodeWriter writer)

Methods inherited from class org.aspectj.compiler.base.ast.Expr

assertType, cgBuffer, cgTest, cgValue, checkSpec, cleanup, getType, isAssignableTo, isConstantFalse, isConstantTrue, isConstantZero, isInConstructorCallExpr, isInExprStmt, isLegalStmt, isMethodConvertableTo, makeQualifiedThis, postCopy, setType, showOperatorTypeError, showOperatorTypeError, walkCleanup, walkFrameLoc

Methods inherited from class org.aspectj.compiler.base.ast.ASTObject

addComment, buildAccessMethod, checkNoSharing, clearComment, clearParent, contains, containsTypes, copy, display, fixAccessPost, fixAST, fromSource, getAST, getBeginColumn, getBeginLine, getBytecodeType, getBytecodeTypeDec, getChildAt, getChildCount, getChildNameAt, getComment, getCompilationUnit, getDeclaringType, getEnclosingCodeDec, getEnclosingDec, getEndColumn, getEndLine, getEndPosition, getFormalComment, getLexicalType, getOutermostBytecodeType, getOutermostLexicalType, getParent, getSourceDirectoryName, getSourceFile, getSourceFileName, getSourceLocation, getStartPosition, hasLegalProtectedAccess, hasSource, hasSourceLocation, implementMixin, indexOf, inStaticContext, isLanguageVisible, isLeaf, isSynthetic, makeChild, makeChild, postAssignmentCheck, postCleanup, postFixAST, postImplementMixin, postInnerAccess, postLift, postScope, postThreading, preAssignmentCheck, preCopy, preIntroduction, preLift, preMove, preScope, preThreading, remove, remove, removeChildAt, replaceWith, setChildAt, setFormalComment, setParent, setParents, setSource, setSourceLocation, setSyntheticSource, showError, showMessage, showTypeError, showWarning, toShortString, toString, unparse, walk, walkAnalysis, walkAssignmentCheck, walkFlow, walkForwardReference, walkInnerInfo, walkMemberMunger, walkScope

Methods inherited from class org.aspectj.compiler.base.CompilerObject

getCompiler, getOptions, getTypeManager, getWorld

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.aspectj.compiler.base.ast.MajPrimaryExpr

unparse

Constructor Detail

ThisExpr

public ThisExpr(SourceLocation source,
                Type type)

ThisExpr

public ThisExpr(SourceLocation location)

ThisExpr

public ThisExpr()

Method Detail

toExpr

public Expr toExpr()

discoverType

public Type discoverType()

Specified by:

discoverType in class Expr

makeReference

public Expr makeReference()

Description copied from class: Expr

When called for the first time will return an expression that may involve computation and state changes. When called on an Expr returned from this method, it is guaranteed that no further computation will occur. For Exprs that are already references, this is copied identity. For others, this will return a ReferenceExpr.

Overrides:

makeReference in class Expr

canBeCopied

public boolean canBeCopied()

Description copied from class: Expr

Can this expression be copied without changing the semantics of the program.

Overrides:

canBeCopied in class Expr

isUltimatelyLiteral

public boolean isUltimatelyLiteral()

Description copied from class: Expr

Is this expression ultimately a literal expression. The only difference between this and canBeCopied is that 'this' is NOT ultimatelyLiteral, and that a cast is only copiable if its expression is ultimatelyLiteral.

Overrides:

isUltimatelyLiteral in class Expr

postMove

public ASTObject postMove(MovingWalker walker)

Overrides:

postMove in class ASTObject

postInnerInfo

public void postInnerInfo(org.aspectj.compiler.base.InnerInfoPass walker)

Overrides:

postInnerInfo in class ASTObject

unparse

public void unparse(org.aspectj.compiler.base.CodeWriter writer)

Overrides:

unparse in class ASTObject

cgValue

protected void cgValue(org.aspectj.compiler.base.bcg.CodeBuilder cb)

Description copied from class: Expr

Leaves the value of this expression on the stack. May self-call Expr.cgTest(CodeBuilder, Label, Label).

Overrides:

cgValue in class Expr

cgEffect

protected void cgEffect(org.aspectj.compiler.base.bcg.CodeBuilder cb)

Description copied from class: Expr

Evaluates the expression in a context where its value is unnecessary (i.e., from ExprStmt, or in a FieldAccessExpr when the field is static but there is an expression there nonetheless). May self-call Expr.cgValue(CodeBuilder).

Overrides:

cgEffect in class Expr

copyWalk

public ASTObject copyWalk(CopyWalker walker)

Overrides:

copyWalk in class ASTObject

getDefaultDisplayName

public java.lang.String getDefaultDisplayName()

Overrides:

getDefaultDisplayName in class Expr