com.oracle.js.parser.ir

Class TernaryNode

java.lang.Object

com.oracle.js.parser.ir.Node

com.oracle.js.parser.ir.Expression

com.oracle.js.parser.ir.TernaryNode

All Implemented Interfaces:

Cloneable

public final class TernaryNode
extends Expression

TernaryNode represent the ternary operator ?:. Note that for control-flow calculation reasons its branch expressions (but not its test expression) are always wrapped in instances of JoinPredecessorExpression.

Field Summary

Fields inherited from class com.oracle.js.parser.ir.Node

finish, start

Constructor Summary

Constructors

Constructor and Description
TernaryNode(long token, Expression test, JoinPredecessorExpression trueExpr, JoinPredecessorExpression falseExpr) Constructor

Method Summary

Modifier and Type	Method and Description
Node	accept(NodeVisitor<? extends LexicalContext> visitor) Provides a means to navigate the IR.
<R> R	accept(TranslatorNodeVisitor<? extends LexicalContext,R> visitor) Provides a means to navigate the IR.
JoinPredecessorExpression	getFalseExpression() Get the false expression for this ternary expression, i.e.
Expression	getTest() Get the test expression for this ternary expression, i.e.
JoinPredecessorExpression	getTrueExpression() Get the true expression for this ternary expression, i.e.
TernaryNode	setFalseExpression(JoinPredecessorExpression falseExpr) Set the false expression for this node
TernaryNode	setTest(Expression test) Set the test expression for this node
TernaryNode	setTrueExpression(JoinPredecessorExpression trueExpr) Set the true expression for this node
void	toString(StringBuilder sb, boolean printType) Print logic that decides whether to show the optimistic type or not - for example it should not be printed after just parse, when it hasn't been computed, or has been set to a trivially provable value

Methods inherited from class com.oracle.js.parser.ir.Expression

getFinish, getFinishWithoutParens, getStart, getStartWithoutParens, isAlwaysFalse, isAlwaysTrue, isParenthesized, isSelfModifying, makeParenthesized

Methods inherited from class com.oracle.js.parser.ir.Node

clone, equals, getSourceOrder, getToken, hashCode, isAssignment, isLoop, isTokenType, tokenType, toString, toString

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

TernaryNode

public TernaryNode(long token,
                   Expression test,
                   JoinPredecessorExpression trueExpr,
                   JoinPredecessorExpression falseExpr)

Constructor

Parameters:

token - token

test - test expression

trueExpr - expression evaluated when test evaluates to true

falseExpr - expression evaluated when test evaluates to true

Method Detail

accept

public Node accept(NodeVisitor<? extends LexicalContext> visitor)

Description copied from class: Node

Provides a means to navigate the IR.

Specified by:

accept in class Node

Parameters:

visitor - Node visitor.

Returns:

node the node or its replacement after visitation, null if no further visitations are required

accept

public <R> R accept(TranslatorNodeVisitor<? extends LexicalContext,R> visitor)

Description copied from class: Node

Provides a means to navigate the IR.

Specified by:

accept in class Node

Parameters:

visitor - Node visitor.

Returns:

node the node or its replacement after visitation, null if no further visitations are required

toString

public void toString(StringBuilder sb,
                     boolean printType)

Description copied from class: Node

Print logic that decides whether to show the optimistic type or not - for example it should not be printed after just parse, when it hasn't been computed, or has been set to a trivially provable value

Specified by:

toString in class Node

Parameters:

sb - string builder

printType - print type?

getTest

public Expression getTest()

Get the test expression for this ternary expression, i.e. "x" in x ? y : z

Returns:

the test expression

getTrueExpression

public JoinPredecessorExpression getTrueExpression()

Get the true expression for this ternary expression, i.e. "y" in x ? y : z

Returns:

the true expression

getFalseExpression

public JoinPredecessorExpression getFalseExpression()

Get the false expression for this ternary expression, i.e. "z" in x ? y : z

Returns:

the false expression

setTest

public TernaryNode setTest(Expression test)

Set the test expression for this node

Parameters:

test - new test expression

Returns:

a node equivalent to this one except for the requested change.

setTrueExpression

public TernaryNode setTrueExpression(JoinPredecessorExpression trueExpr)

Set the true expression for this node

Parameters:

trueExpr - new true expression

Returns:

a node equivalent to this one except for the requested change.

setFalseExpression

public TernaryNode setFalseExpression(JoinPredecessorExpression falseExpr)

Set the false expression for this node

Parameters:

falseExpr - new false expression

Returns:

a node equivalent to this one except for the requested change.