com.oracle.js.parser.ir

Class ExpressionStatement

java.lang.Object

com.oracle.js.parser.ir.Node

com.oracle.js.parser.ir.Statement

com.oracle.js.parser.ir.ExpressionStatement

All Implemented Interfaces:

Terminal, Cloneable

public final class ExpressionStatement
extends Statement

IR representation for executing bare expressions. Basically, an expression node means "this code will be executed" and evaluating it results in statements being added to the IR

Field Summary

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

finish, start

Constructor Summary

Constructors

Constructor and Description
ExpressionStatement(int lineNumber, long token, int finish, Expression expression) 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.
Expression	getExpression() Return the expression to be executed
boolean	isCompletionValueNeverEmpty()
ExpressionStatement	setExpression(Expression expression) Reset the expression to be executed
void	toString(StringBuilder sb, boolean printTypes) 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.Statement

getLineNumber, hasGoto, hasTerminalFlags, isTerminal

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

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

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

ExpressionStatement

public ExpressionStatement(int lineNumber,
                           long token,
                           int finish,
                           Expression expression)

Constructor

Parameters:

lineNumber - line number

token - token

finish - finish

expression - the expression to execute

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 printTypes)

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

printTypes - print type?

getExpression

public Expression getExpression()

Return the expression to be executed

Returns:

the expression

setExpression

public ExpressionStatement setExpression(Expression expression)

Reset the expression to be executed

Parameters:

expression - the expression

Returns:

new or same execute node

isCompletionValueNeverEmpty

public boolean isCompletionValueNeverEmpty()

Overrides:

isCompletionValueNeverEmpty in class Statement

Returns:

true if the completion value of this statement is never the value empty