Package com.tonic.analysis.source.ast.expr

Class UnaryExpr

java.lang.Object

com.tonic.analysis.source.ast.expr.UnaryExpr

All Implemented Interfaces:

ASTNode, Expression

public final class UnaryExpr
extends Object
implements Expression

Represents a unary expression: op operand (prefix) or operand op (postfix)

Constructor Summary

Constructors

Constructor	Description
UnaryExpr(UnaryOperator operator, Expression operand, SourceType type)	Creates a unary expression with an unknown source location.
UnaryExpr(UnaryOperator operator, Expression operand, SourceType type, SourceLocation location)	Creates a unary expression and adopts the operand as a child.

Method Summary

Modifier and Type	Method	Description
<T> T	accept(SourceVisitor<T> visitor)	Accepts a visitor for this node.
List<ASTNode>	getChildren()	Lists the direct children a node holds, in source order.
SourceLocation	getLocation()	Gets the source location of this node.
Expression	getOperand()
UnaryOperator	getOperator()
ASTNode	getParent()	Gets the parent node in the AST tree.
SourceType	getType()	Gets the inferred type of this expression.
boolean	isIncDec()
boolean	isPostfix()
boolean	isPrefix()
void	setOperand(Expression operand)	Sets the operand, reparenting the new one and releasing the old one.
void	setOperator(UnaryOperator operator)	Sets the operator.
void	setParent(ASTNode parent)	Sets the enclosing AST node.
String	toString()
UnaryExpr	withOperand(Expression operand)	Sets the operand, reparenting the new one and releasing the old one.
UnaryExpr	withOperator(UnaryOperator operator)	Sets the operator.

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface com.tonic.analysis.source.ast.ASTNode

deepClone, findAll, findAll, findAncestor, findFirst, findFirst, getRoot, isDescendantOf, remove, replaceWith, stream, stream, walk

Constructor Detail

UnaryExpr

public UnaryExpr(UnaryOperator operator,
                 Expression operand,
                 SourceType type,
                 SourceLocation location)

Creates a unary expression and adopts the operand as a child.

Parameters:

operator - the prefix or postfix operator

operand - the operand expression

type - the result type

location - the source location, null for unknown

Throws:

NullPointerException - if the operator, operand or type is null

UnaryExpr

public UnaryExpr(UnaryOperator operator,
                 Expression operand,
                 SourceType type)

Creates a unary expression with an unknown source location.

Parameters:

operator - the prefix or postfix operator

operand - the operand expression

type - the result type

Throws:

NullPointerException - if the operator, operand or type is null

Method Detail

getOperator

public UnaryOperator getOperator()

Returns:

the operator

setOperator

public void setOperator(UnaryOperator operator)

Sets the operator.

Parameters:

operator - the new operator

getOperand

public Expression getOperand()

Returns:

the operand

setOperand

public void setOperand(Expression operand)

Sets the operand, reparenting the new one and releasing the old one.

Parameters:

operand - the new operand

getType

public SourceType getType()

Description copied from interface: Expression

Gets the inferred type of this expression.

Specified by:

getType in interface Expression

Returns:

the static type of this expression

getLocation

public SourceLocation getLocation()

Description copied from interface: ASTNode

Gets the source location of this node.

Specified by:

getLocation in interface ASTNode

Returns:

the location

getParent

public ASTNode getParent()

Description copied from interface: ASTNode

Gets the parent node in the AST tree.

Specified by:

getParent in interface ASTNode

Returns:

the parent

setParent

public void setParent(ASTNode parent)

Sets the enclosing AST node.

Specified by:

setParent in interface ASTNode

Parameters:

parent - the new parent

isPrefix

public boolean isPrefix()

Returns:

true if the operator is written before the operand

isPostfix

public boolean isPostfix()

Returns:

true if the operator is written after the operand

isIncDec

public boolean isIncDec()

Returns:

true if the operator is an increment or decrement

withOperator

public UnaryExpr withOperator(UnaryOperator operator)

Sets the operator.

Parameters:

operator - the new operator

Returns:

this expression

withOperand

public UnaryExpr withOperand(Expression operand)

Sets the operand, reparenting the new one and releasing the old one.

Parameters:

operand - the new operand

Returns:

this expression

getChildren

public List<ASTNode> getChildren()

Description copied from interface: ASTNode

Lists the direct children a node holds, in source order.

Specified by:

getChildren in interface ASTNode

Returns:

the direct children, empty for a leaf

accept

public <T> T accept(SourceVisitor<T> visitor)

Description copied from interface: ASTNode

Accepts a visitor for this node.

Specified by:

accept in interface ASTNode

Type Parameters:

T - the return type of the visitor

Parameters:

visitor - the visitor to accept

Returns:

the result from the visitor

toString

public String toString()

Overrides:

toString in class Object