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

Class TernaryExpr

java.lang.Object

com.tonic.analysis.source.ast.expr.TernaryExpr

All Implemented Interfaces:

ASTNode, Expression

public final class TernaryExpr
extends Object
implements Expression

A conditional expression - condition ? thenExpr : elseExpr - whose three operands are children of this node.

Constructor Summary

Constructors

Constructor	Description
TernaryExpr(Expression condition, Expression thenExpr, Expression elseExpr, SourceType type)	Creates a conditional expression with an unknown source position.
TernaryExpr(Expression condition, Expression thenExpr, Expression elseExpr, SourceType type, SourceLocation location)	Creates a conditional expression and adopts the three operands as children.

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.
Expression	getCondition()
Expression	getElseExpr()
SourceLocation	getLocation()	Gets the source location of this node.
ASTNode	getParent()	Gets the parent node in the AST tree.
Expression	getThenExpr()
SourceType	getType()	Gets the inferred type of this expression.
void	setCondition(Expression condition)	Replaces the test, reparenting it and releasing the old one.
void	setElseExpr(Expression elseExpr)	Replaces the else-value, reparenting it and releasing the old one.
void	setParent(ASTNode parent)	Sets the node this expression hangs under.
void	setThenExpr(Expression thenExpr)	Replaces the then-value, reparenting it and releasing the old one.
String	toString()
TernaryExpr	withCondition(Expression condition)	Replaces the test, reparenting it and releasing the old one.
TernaryExpr	withElseExpr(Expression elseExpr)	Replaces the else-value, reparenting it and releasing the old one.
TernaryExpr	withThenExpr(Expression thenExpr)	Replaces the then-value, reparenting it and releasing the old one.

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

TernaryExpr

public TernaryExpr(Expression condition,
                   Expression thenExpr,
                   Expression elseExpr,
                   SourceType type,
                   SourceLocation location)

Creates a conditional expression and adopts the three operands as children.

Parameters:

condition - the test

thenExpr - the value when the test holds

elseExpr - the value when it does not

type - the expression's static type

location - source position, or null for an unknown one

Throws:

NullPointerException - if condition, thenExpr, elseExpr or type is null

TernaryExpr

public TernaryExpr(Expression condition,
                   Expression thenExpr,
                   Expression elseExpr,
                   SourceType type)

Creates a conditional expression with an unknown source position.

Parameters:

condition - the test

thenExpr - the value when the test holds

elseExpr - the value when it does not

type - the expression's static type

Throws:

NullPointerException - if condition, thenExpr, elseExpr or type is null

Method Detail

getCondition

public Expression getCondition()

Returns:

the test expression

setCondition

public void setCondition(Expression condition)

Replaces the test, reparenting it and releasing the old one.

Parameters:

condition - the new test

getThenExpr

public Expression getThenExpr()

Returns:

the value taken when the test holds

setThenExpr

public void setThenExpr(Expression thenExpr)

Replaces the then-value, reparenting it and releasing the old one.

Parameters:

thenExpr - the new then-value

getElseExpr

public Expression getElseExpr()

Returns:

the else-value

setElseExpr

public void setElseExpr(Expression elseExpr)

Replaces the else-value, reparenting it and releasing the old one.

Parameters:

elseExpr - the new else-value

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 node this expression hangs under.

Specified by:

setParent in interface ASTNode

Parameters:

parent - the owning node

withCondition

public TernaryExpr withCondition(Expression condition)

Replaces the test, reparenting it and releasing the old one.

Parameters:

condition - the new test, or null to clear it

Returns:

this expression

withThenExpr

public TernaryExpr withThenExpr(Expression thenExpr)

Replaces the then-value, reparenting it and releasing the old one.

Parameters:

thenExpr - the new then-value, or null to clear it

Returns:

this expression

withElseExpr

public TernaryExpr withElseExpr(Expression elseExpr)

Replaces the else-value, reparenting it and releasing the old one.

Parameters:

elseExpr - the new else-value, or null to clear it

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