Package org.eclipse.cdt.core.dom.ast

Interface IASTExpression

All Superinterfaces:

IASTInitializerClause, IASTNode

All Known Subinterfaces:

IASTArraySubscriptExpression, IASTBinaryExpression, IASTBinaryTypeIdExpression, IASTCastExpression, IASTConditionalExpression, IASTExpressionList, IASTFieldReference, IASTFunctionCallExpression, IASTIdExpression, IASTLiteralExpression, IASTProblemExpression, IASTTypeIdExpression, IASTTypeIdInitializerExpression, IASTUnaryExpression, ICASTTypeIdInitializerExpression, ICPPASTArraySubscriptExpression, ICPPASTBinaryExpression, ICPPASTCastExpression, ICPPASTDeleteExpression, ICPPASTExpression, ICPPASTExpressionList, ICPPASTFieldReference, ICPPASTFunctionCallExpression, ICPPASTLambdaExpression, ICPPASTLiteralExpression, ICPPASTNaryTypeIdExpression, ICPPASTNewExpression, ICPPASTPackExpansionExpression, ICPPASTSimpleTypeConstructorExpression, ICPPASTTypeIdExpression, ICPPASTTypenameExpression, ICPPASTUnaryExpression, IGNUASTCompoundStatementExpression, IGNUASTTypeIdExpression, IGNUASTUnaryExpression, IGPPASTBinaryExpression

public interface IASTExpression
extends IASTInitializerClause

This is the root class of expressions.

Restriction:

This interface is not intended to be implemented by clients.

Restriction:

This interface is not intended to be extended by clients.

Nested Class Summary

Nested Classes

Modifier and Type	Interface	Description
static class	IASTExpression.ValueCategory

Nested classes/interfaces inherited from interface org.eclipse.cdt.core.dom.ast.IASTNode

IASTNode.CopyStyle

Field Summary

Fields

Modifier and Type	Field	Description
static IASTExpression[]	EMPTY_EXPRESSION_ARRAY	Empty expression array.

Fields inherited from interface org.eclipse.cdt.core.dom.ast.IASTNode

EMPTY_NODE_ARRAY

Method Summary

Modifier and Type	Method	Description
IASTExpression	copy()	Returns a mutable copy of the tree rooted at this node.
IASTExpression	copy(IASTNode.CopyStyle style)	Returns a mutable copy of the tree rooted at this node.
IType	getExpressionType()	Returns the type of the value the expression evaluates to.
IASTExpression.ValueCategory	getValueCategory()	Returns the value category of this expression.
boolean	isLValue()	Returns whether this expression is an lvalue.

Methods inherited from interface org.eclipse.cdt.core.dom.ast.IASTNode

accept, contains, getChildren, getContainingFilename, getFileLocation, getLeadingSyntax, getNodeLocations, getOriginalNode, getParent, getPropertyInParent, getRawSignature, getSyntax, getTrailingSyntax, getTranslationUnit, isActive, isFrozen, isPartOfTranslationUnitFile, setParent, setPropertyInParent

Field Detail

EMPTY_EXPRESSION_ARRAY

static final IASTExpression[] EMPTY_EXPRESSION_ARRAY

Empty expression array.

Method Detail

getExpressionType

IType getExpressionType()

Returns the type of the value the expression evaluates to.

isLValue

boolean isLValue()

Returns whether this expression is an lvalue. LValues are for instance required on the left hand side of an assignment expression.

Since:

5.2

getValueCategory

IASTExpression.ValueCategory getValueCategory()

Returns the value category of this expression.

Since:

5.3

copy

IASTExpression copy()

Description copied from interface: IASTNode

Returns a mutable copy of the tree rooted at this node. The following postconditions hold:

 copy.getParent() == null
 copy.getPropertyInParent() == null
 copy.isFrozen() == false
 

Preprocessor nodes do not currently support being copied. Implicit name nodes are not copied, instead they can be regenerated if required.

Calling this method is equivalent to copy(CopyStyle.withoutLocations).

Specified by:

copy in interface IASTInitializerClause

Specified by:

copy in interface IASTNode

Since:

5.1

copy

IASTExpression copy(IASTNode.CopyStyle style)

Description copied from interface: IASTNode

Returns a mutable copy of the tree rooted at this node. The following postconditions hold:

 copy.getParent() == null
 copy.getPropertyInParent() == null
 copy.isFrozen() == false
 

Preprocessor nodes do not currently support being copied. Implicit name nodes are not copied, instead they can be regenerated if required.

Specified by:

copy in interface IASTInitializerClause

Specified by:

copy in interface IASTNode

Parameters:

style - IASTNode.CopyStyle create a copy with or without locations. Please see IASTNode.CopyStyle for restrictions on copies with Locations.

Since:

5.3