com.oracle.js.parser.ir

Class ThrowNode

java.lang.Object

com.oracle.js.parser.ir.Node

com.oracle.js.parser.ir.Statement

com.oracle.js.parser.ir.ThrowNode

All Implemented Interfaces:

Terminal, Cloneable

public final class ThrowNode
extends Statement

IR representation for throw statements.

Field Summary

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

finish, start

Constructor Summary

Constructors

Constructor and Description
ThrowNode(int lineNumber, long token, int finish, Expression expression, boolean isSyntheticRethrow) Constructor

Method Summary

Modifier and Type	Method and Description
Node	accept(NodeVisitor<? extends LexicalContext> visitor) Assist in IR navigation.
<R> R	accept(TranslatorNodeVisitor<? extends LexicalContext,R> visitor) Provides a means to navigate the IR.
Expression	getExpression() Get the expression that is being thrown by this node
boolean	isCompletionValueNeverEmpty()
boolean	isSyntheticRethrow() Is this a throw a synthetic rethrow in a synthetic catch-all block created when inlining finally statements? In that case we never wrap whatever is thrown into an ECMAException, just rethrow it.
boolean	isTerminal() Is this a terminal statement, i.e.
ThrowNode	setExpression(Expression expression) Reset the expression being thrown by 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.Statement

getLineNumber, hasGoto, hasTerminalFlags

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

finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

ThrowNode

public ThrowNode(int lineNumber,
                 long token,
                 int finish,
                 Expression expression,
                 boolean isSyntheticRethrow)

Constructor

Parameters:

lineNumber - line number

token - token

finish - finish

expression - expression to throw

isSyntheticRethrow - true if this throw node is part of a synthetic rethrow.

Method Detail

isTerminal

public boolean isTerminal()

Description copied from class: Statement

Is this a terminal statement, i.e. does it end control flow like a throw or return?

Specified by:

isTerminal in interface Terminal

Overrides:

isTerminal in class Statement

Returns:

true if this node statement is terminal

accept

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

Assist in IR navigation.

Specified by:

accept in class Node

Parameters:

visitor - IR navigating 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?

getExpression

public Expression getExpression()

Get the expression that is being thrown by this node

Returns:

expression

setExpression

public ThrowNode setExpression(Expression expression)

Reset the expression being thrown by this node

Parameters:

expression - new expression

Returns:

new or same thrownode

isSyntheticRethrow

public boolean isSyntheticRethrow()

Is this a throw a synthetic rethrow in a synthetic catch-all block created when inlining finally statements? In that case we never wrap whatever is thrown into an ECMAException, just rethrow it.

Returns:

true if synthetic throw node

isCompletionValueNeverEmpty

public boolean isCompletionValueNeverEmpty()

Overrides:

isCompletionValueNeverEmpty in class Statement

Returns:

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