com.google.gwt.dev.jjs.ast

Class JRunAsync

java.lang.Object

com.google.gwt.dev.jjs.ast.JNode

com.google.gwt.dev.jjs.ast.JExpression

com.google.gwt.dev.jjs.ast.JRunAsync

All Implemented Interfaces:

HasType, JVisitable, HasSourceInfo, Serializable

public class JRunAsync
extends JExpression

Represents a GWT.runAsync() call.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
JRunAsync(SourceInfo info, int runAsyncId, String name, boolean explicitClassLiteral, JExpression runAsyncCall, JExpression onSuccessCall) Constructs a runAsync call node; explicitClassLiteral is set if the corresponding GWT.runAsync() call has a class literal.

Method Summary

Modifier and Type	Method and Description
String	getName() Based on either explicit class literal, or the jsni name of the containing method.
JExpression	getOnSuccessCall() Returns a call expression akin to callback.onSuccess().
JExpression	getRunAsyncCall() Returns a call expression akin to AsyncFragmentLoader.runAsync(7, callback).
int	getRunAsyncId() Returns a unique id for each runAsync, 1-based.
JType	getType() Returns the type of this expression.
boolean	hasExplicitClassLiteral() Returns true if the corresponding GWT.runAsync call had a class literal.
boolean	hasSideEffects()
void	traverse(JVisitor visitor, Context ctx) Causes this object to have the visitor visit itself and its children.
void	traverseOnSuccess(JVisitor visitor) Explcitly traverse the onSuccessCall.

Methods inherited from class com.google.gwt.dev.jjs.ast.JExpression

makeStatement

Methods inherited from class com.google.gwt.dev.jjs.ast.JNode

getSourceInfo, setSourceInfo, toSource, toString

Methods inherited from class java.lang.Object

equals, finalize, getClass, hashCode

Constructor Detail

JRunAsync

public JRunAsync(SourceInfo info,
                 int runAsyncId,
                 String name,
                 boolean explicitClassLiteral,
                 JExpression runAsyncCall,
                 JExpression onSuccessCall)

Constructs a runAsync call node; explicitClassLiteral is set if the corresponding GWT.runAsync() call has a class literal.

Method Detail

getName

public String getName()

Based on either explicit class literal, or the jsni name of the containing method.

getOnSuccessCall

public JExpression getOnSuccessCall()

Returns a call expression akin to callback.onSuccess(). ControlFlowAnalyzer makes a synthetic visit to this call on the "far" side of the split point, ie, the code that runs when the fragment is through downloading.

getRunAsyncCall

public JExpression getRunAsyncCall()

Returns a call expression akin to AsyncFragmentLoader.runAsync(7, callback). This represents the "near" side of the split point, calling into the machinery that queues up the fragment download.

getRunAsyncId

public int getRunAsyncId()

Returns a unique id for each runAsync, 1-based.

ReplaceRunAsyncs embeds these ids into the Java AST as parameter for a call to RunAsync.forSplitPointNumber}

TODO(rluble): these ids used to be splitpoint/fragment ids back when there was 1-to-1 mapping from RunAsyncs to fragment id. This code and the runtime code need to be refactored so that its less coupled and cleaner.

getType

public JType getType()

Description copied from interface: HasType

Returns the type of this expression.

hasSideEffects

public boolean hasSideEffects()

Specified by:

hasSideEffects in class JExpression

traverse

public void traverse(JVisitor visitor,
                     Context ctx)

Description copied from interface: JVisitable

Causes this object to have the visitor visit itself and its children.

Parameters:

visitor - the visitor that should traverse this node

ctx - the context of an existing traversal

traverseOnSuccess

public void traverseOnSuccess(JVisitor visitor)

Explcitly traverse the onSuccessCall.

hasExplicitClassLiteral

public boolean hasExplicitClassLiteral()

Returns true if the corresponding GWT.runAsync call had a class literal.