Package net.ssehub.easy.instantiation.core.model.expressions

Class CopyVisitor

java.lang.Object

net.ssehub.easy.instantiation.core.model.expressions.CopyVisitor

All Implemented Interfaces:

IExpressionVisitor

Direct Known Subclasses:

ExpressionCopyVisitor, ExpressionCopyVisitor

public class CopyVisitor
extends java.lang.Object
implements IExpressionVisitor

Implements a visitor for copying expressions. Results of the methods will always be expressions. Please note that build and template model may define a more specific copy visitor as the may define specialized expressions.

Author:

Holger Eichelberger

Field Summary

Fields

Modifier and Type	Field	Description
private IVersionRestriction.IVariableMapper	mapper
private java.util.Map<VariableDeclaration,VariableDeclaration>	mapping
private boolean	reuse

Constructor Summary

Constructors

Constructor	Description
CopyVisitor(java.util.Map<VariableDeclaration,VariableDeclaration> mapping, boolean reuse)	Creates a new copy visitor.
CopyVisitor(java.util.Map<VariableDeclaration,VariableDeclaration> mapping, boolean reuse, IVersionRestriction.IVariableMapper mapper)	Creates a new copy visitor.

Method Summary

Modifier and Type	Method	Description
protected CallArgument[]	copyCallArguments(AbstractCallExpression call)	Copies the arguments of the given call.
protected Expression	copyExpression(Expression ex)	Copies the given expression.
protected java.util.List<Expression>	copyExpressions(IExpressionIterator iter)	Copies all processed expressions from iter into the result.
protected IVersionRestriction.IVariableMapper	getMapper()	Returns the variable mapper.
protected VariableDeclaration	map(VariableDeclaration decl, boolean allowNull)	Maps the variable declaration considering the initially specified mapping.
java.lang.Object	visitCallExpression(CallExpression call)	Visits a call node.
java.lang.Object	visitCompositeExpression(CompositeExpression ex)	Visits a composite expression.
java.lang.Object	visitConstantExpression(ConstantExpression cst)	Visits a constant node.
java.lang.Object	visitContainerInitializerExpression(ContainerInitializerExpression ex)	Visits a container initializer expression.
java.lang.Object	visitExpression(Expression ex)	Visits an unspecified expression (in case of specialized nodes).
java.lang.Object	visitExpressionEvaluator(ExpressionEvaluator ex)	Visits an expression evaluator.
java.lang.Object	visitFieldAccessExpression(FieldAccessExpression ex)	Visits a field access expression.
java.lang.Object	visitMultiAndExpression(MultiAndExpression ex)	Visits a multi-and expression.
java.lang.Object	visitParenthesisExpression(ParenthesisExpression par)	Visits a parenthesis node.
java.lang.Object	visitResolvableOperationCallExpression(ResolvableOperationCallExpression ex)	Visits resolvable operation call expression (function pointer call).
java.lang.Object	visitResolvableOperationExpression(ResolvableOperationExpression ex)	Visits resolvable operation expression (function pointer resolution).
java.lang.Object	visitStringExpression(StringExpression ex)	Visits a string expression.
java.lang.Object	visitValueAssignmentExpression(ValueAssignmentExpression ex)	Visits a value assignment expression.
java.lang.Object	visitVariableExpression(VariableExpression cst)	Visits a constant node.
java.lang.Object	visitVarModelIdentifierExpression(VarModelIdentifierExpression identifier)	Visits a variability model identifier.
java.lang.Object	visitVilTypeExpression(VilTypeExpression typeExpression)	Visits a VIL type expression.

Methods inherited from class java.lang.Object

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

Field Detail

mapping

private java.util.Map<VariableDeclaration,VariableDeclaration> mapping

reuse

private boolean reuse

mapper

private IVersionRestriction.IVariableMapper mapper

Constructor Detail

CopyVisitor

public CopyVisitor(java.util.Map<VariableDeclaration,VariableDeclaration> mapping,
                   boolean reuse)

Creates a new copy visitor.

Parameters:

mapping - the variable mapping to be considered while copying (may be null for no mapping)

reuse - whether leaves shall be reused rather than created again

CopyVisitor

public CopyVisitor(java.util.Map<VariableDeclaration,VariableDeclaration> mapping,
                   boolean reuse,
                   IVersionRestriction.IVariableMapper mapper)

Creates a new copy visitor.

Parameters:

mapping - the variable mapping to be considered while copying (may be null for no mapping)

reuse - whether leaves shall be reused rather than created again

mapper - an optional variable mapper (may be null if absent)

Method Detail

getMapper

protected IVersionRestriction.IVariableMapper getMapper()

Returns the variable mapper.

Returns:

the variable mapper

visitParenthesisExpression

public java.lang.Object visitParenthesisExpression(ParenthesisExpression par)
                                            throws VilException

Description copied from interface: IExpressionVisitor

Visits a parenthesis node.

Specified by:

visitParenthesisExpression in interface IExpressionVisitor

Parameters:

par - the node

Returns:

the result of visiting this expression (may be null)

Throws:

VilException - in case that visiting fails (e.g., execution)

copyCallArguments

protected CallArgument[] copyCallArguments(AbstractCallExpression call)
                                    throws VilException

Copies the arguments of the given call.

Parameters:

call - the call the arguments shall be copied from

Returns:

the copied arguments

Throws:

VilException - in case that processing expressions fails

visitCallExpression

public java.lang.Object visitCallExpression(CallExpression call)
                                     throws VilException

Description copied from interface: IExpressionVisitor

Visits a call node.

Specified by:

visitCallExpression in interface IExpressionVisitor

Parameters:

call - the node

Returns:

the result of visiting this expression (may be null)

Throws:

VilException - in case that visiting fails (e.g., execution)

visitConstantExpression

public java.lang.Object visitConstantExpression(ConstantExpression cst)
                                         throws VilException

Description copied from interface: IExpressionVisitor

Visits a constant node.

Specified by:

visitConstantExpression in interface IExpressionVisitor

Parameters:

cst - the node

Returns:

the result of visiting this expression (may be null)

Throws:

VilException - in case that visiting fails (e.g., execution)

visitVarModelIdentifierExpression

public java.lang.Object visitVarModelIdentifierExpression(VarModelIdentifierExpression identifier)
                                                   throws VilException

Description copied from interface: IExpressionVisitor

Visits a variability model identifier.

Specified by:

visitVarModelIdentifierExpression in interface IExpressionVisitor

Parameters:

identifier - the identifier

Returns:

the result of visiting this expression (may be null)

Throws:

VilException - in case that visiting fails (e.g., execution)

visitVilTypeExpression

public java.lang.Object visitVilTypeExpression(VilTypeExpression typeExpression)
                                        throws VilException

Description copied from interface: IExpressionVisitor

Visits a VIL type expression.

Specified by:

visitVilTypeExpression in interface IExpressionVisitor

Parameters:

typeExpression - the expression

Returns:

the result of visiting this expression (may be null)

Throws:

VilException - in case that visiting fails (e.g., execution)

visitVariableExpression

public java.lang.Object visitVariableExpression(VariableExpression cst)
                                         throws VilException

Description copied from interface: IExpressionVisitor

Visits a constant node.

Specified by:

visitVariableExpression in interface IExpressionVisitor

Parameters:

cst - the node

Returns:

the result of visiting the given statement (may be null)

Throws:

VilException - in case that visiting fails (e.g., execution)

visitFieldAccessExpression

public java.lang.Object visitFieldAccessExpression(FieldAccessExpression ex)
                                            throws VilException

Description copied from interface: IExpressionVisitor

Visits a field access expression.

Specified by:

visitFieldAccessExpression in interface IExpressionVisitor

Parameters:

ex - the expression

Returns:

the result of visiting the given statement (may be null)

Throws:

VilException - in case that visiting fails (e.g., execution)

map

protected VariableDeclaration map(VariableDeclaration decl,
                                  boolean allowNull)

Maps the variable declaration considering the initially specified mapping.

Parameters:

decl - the declaration to be mapped

allowNull - whether the result may be null or decl instead

Returns:

the mapped declaration (may be null if the originating expression shall be reused)

visitExpressionEvaluator

public java.lang.Object visitExpressionEvaluator(ExpressionEvaluator ex)
                                          throws VilException

Description copied from interface: IExpressionVisitor

Visits an expression evaluator.

Specified by:

visitExpressionEvaluator in interface IExpressionVisitor

Parameters:

ex - the evaluator

Returns:

the result of visiting this expression (may be null)

Throws:

VilException - in case that visiting fails (e.g., execution)

visitExpression

public java.lang.Object visitExpression(Expression ex)
                                 throws VilException

Description copied from interface: IExpressionVisitor

Visits an unspecified expression (in case of specialized nodes).

Specified by:

visitExpression in interface IExpressionVisitor

Parameters:

ex - the node

Returns:

the result of visiting this expression (may be null)

Throws:

VilException - in case that visiting fails (e.g., execution)

visitValueAssignmentExpression

public java.lang.Object visitValueAssignmentExpression(ValueAssignmentExpression ex)
                                                throws VilException

Description copied from interface: IExpressionVisitor

Visits a value assignment expression.

Specified by:

visitValueAssignmentExpression in interface IExpressionVisitor

Parameters:

ex - the expression

Returns:

the result of visiting the given statement (may be null)

Throws:

VilException - in case that visiting fails (e.g., execution)

visitContainerInitializerExpression

public java.lang.Object visitContainerInitializerExpression(ContainerInitializerExpression ex)
                                                     throws VilException

Description copied from interface: IExpressionVisitor

Visits a container initializer expression.

Specified by:

visitContainerInitializerExpression in interface IExpressionVisitor

Parameters:

ex - the expression

Returns:

the result of visiting the given statement (may be null)

Throws:

VilException - in case that visiting fails (e.g., execution)

visitCompositeExpression

public java.lang.Object visitCompositeExpression(CompositeExpression ex)
                                          throws VilException

Description copied from interface: IExpressionVisitor

Visits a composite expression.

Specified by:

visitCompositeExpression in interface IExpressionVisitor

Parameters:

ex - the expression

Returns:

the result of visiting the given statement

Throws:

VilException - in case that visiting fails (e.g., execution)

copyExpressions

protected java.util.List<Expression> copyExpressions(IExpressionIterator iter)
                                              throws VilException

Copies all processed expressions from iter into the result.

Parameters:

iter - the iterator to process

Returns:

the processed expressions

Throws:

VilException - if copying fails

See Also:

copyExpression(Expression)

copyExpression

protected Expression copyExpression(Expression ex)
                             throws VilException

Copies the given expression.

Parameters:

ex - the expression, may be null

Returns:

the expression or null if ex is null

Throws:

VilException - if copying fails

visitResolvableOperationExpression

public java.lang.Object visitResolvableOperationExpression(ResolvableOperationExpression ex)
                                                    throws VilException

Description copied from interface: IExpressionVisitor

Visits resolvable operation expression (function pointer resolution).

Specified by:

visitResolvableOperationExpression in interface IExpressionVisitor

Parameters:

ex - the expression

Returns:

the result of visiting the given statement (may be null)

Throws:

VilException - in case that visiting fails (e.g., execution)

visitResolvableOperationCallExpression

public java.lang.Object visitResolvableOperationCallExpression(ResolvableOperationCallExpression ex)
                                                        throws VilException

Description copied from interface: IExpressionVisitor

Visits resolvable operation call expression (function pointer call).

Specified by:

visitResolvableOperationCallExpression in interface IExpressionVisitor

Parameters:

ex - the expression

Returns:

the result of visiting the given statement (may be null)

Throws:

VilException - in case that visiting fails (e.g., execution)

visitMultiAndExpression

public java.lang.Object visitMultiAndExpression(MultiAndExpression ex)
                                         throws VilException

Description copied from interface: IExpressionVisitor

Visits a multi-and expression.

Specified by:

visitMultiAndExpression in interface IExpressionVisitor

Parameters:

ex - the expression

Returns:

the result of visiting the given statement (may be null)

Throws:

VilException - in case that visiting fails (e.g., execution)

visitStringExpression

public java.lang.Object visitStringExpression(StringExpression ex)
                                       throws VilException

Description copied from interface: IExpressionVisitor

Visits a string expression.

Specified by:

visitStringExpression in interface IExpressionVisitor

Parameters:

ex - the expression

Returns:

the result of visiting the given statement (may be null)

Throws:

VilException - in case that visiting fails (e.g., execution)