org.aspectj.compiler.base.ast
Class ParenExpr

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.ParenExpr

public class ParenExpr

extends Expr

Field Summary

protected Expr

expr

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

protected	ParenExpr(SourceLocation source)
	ParenExpr(SourceLocation location, Expr _expr)

Method Summary

protected void	bindNamesSelf()
boolean	canBeCopied() Can this expression be copied without changing the semantics of the program.
protected void	cgBuffer(org.aspectj.compiler.base.bcg.CodeBuilder cb) Evaluates the expression in a context where the top of the stack contains a StringBuffer object.
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	cgTest(org.aspectj.compiler.base.bcg.CodeBuilder cb, org.aspectj.compiler.base.bcg.Label tdest, org.aspectj.compiler.base.bcg.Label fdest) Evaluates the expression in a context where its value will only be used to branch (from IfStmt, TriTestExpr, WhileStmt, DoStmt, and ForStmt).
protected void	cgValue(org.aspectj.compiler.base.bcg.CodeBuilder cb) Leaves the value of this expression on the stack.
protected void	cgValue(org.aspectj.compiler.base.bcg.CodeBuilder cb, Type castTo) Leaves the value of this expression on the stack and casts the value to castTo.
ASTObject	copyWalk(CopyWalker walker)
protected Type	discoverType()
ASTObject	getChildAt(int childIndex)
int	getChildCount()
java.lang.String	getChildNameAt(int childIndex)
java.lang.String	getDefaultDisplayName()
Expr	getExpr()
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.
ASTObject	postAssignmentCheck(org.aspectj.compiler.base.AssignmentCheckerPass walker)
void	setChildAt(int childIndex, ASTObject child)
void	setExpr(Expr _expr)
void	unparse(org.aspectj.compiler.base.CodeWriter writer)

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

assertType, 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, 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, postCleanup, postFixAST, postImplementMixin, postInnerAccess, postInnerInfo, postLift, postMove, postScope, postThreading, preAssignmentCheck, preCopy, preIntroduction, preLift, preMove, preScope, preThreading, remove, remove, removeChildAt, replaceWith, 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

Field Detail

expr

protected Expr expr

Constructor Detail

ParenExpr

public ParenExpr(SourceLocation location,
                 Expr _expr)

ParenExpr

protected ParenExpr(SourceLocation source)

Method Detail

bindNamesSelf

protected void bindNamesSelf()

discoverType

protected 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

unparse

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

Overrides:

unparse in class ASTObject

postAssignmentCheck

public ASTObject postAssignmentCheck(org.aspectj.compiler.base.AssignmentCheckerPass walker)

Overrides:

postAssignmentCheck 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

cgValue

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

Description copied from class: Expr

Leaves the value of this expression on the stack and casts the value to castTo. May self-call Expr.cgValue(CodeBuilder).

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

cgBuffer

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

Description copied from class: Expr

Evaluates the expression in a context where the top of the stack contains a StringBuffer object. The value of this expression is then appended into the StringBuffer. This is used in evaluating the String + operator. May self-call Expr.cgValue(CodeBuilder).

Overrides:

cgBuffer in class Expr

cgTest

protected void cgTest(org.aspectj.compiler.base.bcg.CodeBuilder cb,
                      org.aspectj.compiler.base.bcg.Label tdest,
                      org.aspectj.compiler.base.bcg.Label fdest)

Description copied from class: Expr

Evaluates the expression in a context where its value will only be used to branch (from IfStmt, TriTestExpr, WhileStmt, DoStmt, and ForStmt). The expression, of course, will have boolean type. By default, this evaluates the expression to the stack and then emits an EQ/NE branch bytecode, but many expressions such as tests in BinopExpr will be able to do much better. May self-call Expr.cgValue(CodeBuilder).

Overrides:

cgTest in class Expr

getExpr

public Expr getExpr()

setExpr

public void setExpr(Expr _expr)

copyWalk

public ASTObject copyWalk(CopyWalker walker)

Overrides:

copyWalk in class ASTObject

getChildAt

public ASTObject getChildAt(int childIndex)

Overrides:

getChildAt in class ASTObject

getChildNameAt

public java.lang.String getChildNameAt(int childIndex)

Overrides:

getChildNameAt in class ASTObject

setChildAt

public void setChildAt(int childIndex,
                       ASTObject child)

Overrides:

setChildAt in class ASTObject

getChildCount

public int getChildCount()

Overrides:

getChildCount in class ASTObject

getDefaultDisplayName

public java.lang.String getDefaultDisplayName()

Overrides:

getDefaultDisplayName in class Expr