com.google.gwt.dev.jjs.impl.codesplitter

Class CodeSplitters

java.lang.Object

com.google.gwt.dev.jjs.impl.codesplitter.CodeSplitters

public class CodeSplitters
extends Object

Utility function related to code splitting.

Field Summary

Fields

Modifier and Type	Field and Description
static String	MIN_FRAGMENT_SIZE

Constructor Summary

Constructors

Constructor and Description
CodeSplitters()

Method Summary

Modifier and Type	Method and Description
static JRunAsync	findRunAsync(String refString, JProgram program, TreeLogger branch) Find a split point as designated in the PROP_INITIAL_SEQUENCE configuration property.
static int	getNumberOfExclusiveFragmentFromExpectedFragmentCount(int numberOfInitialAsyncs, int expectedFragmentCount) Returns the number of exclusive fragments from the expected number of fragments.
static void	pickInitialLoadSequence(TreeLogger logger, JProgram program, ConfigProps config) Choose an initial load sequence of split points for the specified program.

Methods inherited from class java.lang.Object

equals, finalize, getClass, hashCode, toString

Field Detail

MIN_FRAGMENT_SIZE

public static final String MIN_FRAGMENT_SIZE

See Also:

Constant Field Values

Constructor Detail

CodeSplitters

public CodeSplitters()

Method Detail

pickInitialLoadSequence

public static void pickInitialLoadSequence(TreeLogger logger,
                                           JProgram program,
                                           ConfigProps config)
                                    throws UnableToCompleteException

Choose an initial load sequence of split points for the specified program. Do so by identifying split points whose code always load first, before any other split points. As a side effect, modifies AsyncFragmentLoader.initialLoadSequence in the program being compiled.

Throws:

UnableToCompleteException - If the module specifies a bad load order

findRunAsync

public static JRunAsync findRunAsync(String refString,
                                     JProgram program,
                                     TreeLogger branch)
                              throws UnableToCompleteException

Find a split point as designated in the PROP_INITIAL_SEQUENCE configuration property.

Throws:

UnableToCompleteException

getNumberOfExclusiveFragmentFromExpectedFragmentCount

public static int getNumberOfExclusiveFragmentFromExpectedFragmentCount(int numberOfInitialAsyncs,
                                                                        int expectedFragmentCount)

Returns the number of exclusive fragments from the expected number of fragments. The result is expectedFragmentCount - (initials + 1) - 1 (for leftovers).