Re: GWT 2.7.0-RC1 and collapse-property generating too many permutations?

I can't see any other deferred binding property, but I'm not an expert here.

If I replace the user.User inherits with core.Core and useragent.UserAgent, then I do get the expected two permutations, not four. So something in there is forcing it to be more, but I don't know what that is, nor really how to find it, short of doing some kind of binary search by removing all of the inherits.

$ cat $INPUT/GWT_UI.gwt.xml

<?xml version="1.0" encoding="UTF-8"?>

<module rename-to='gwt_ui'>

  <!-- Inherit the core Web Toolkit stuff.                        -->

  <inherits name='com.google.gwt.user.User'/>

<!-- <inherits name='com.google.gwt.core.Core'/>

  <inherits name='com.google.gwt.useragent.UserAgent'/> -->

  <!-- Other module inherits                                      -->

  <!-- Specify the app entry point class.                         -->

  <entry-point class='com.example.javascript.gwt.client.GWT_UI'/>

  <!-- Specify the paths for translatable code                    -->

  <source path="javascript"></source>

  <source path="ui/constants"></source>

  <set-property name="compiler.stackMode" value="native,emulated" />

  <set-configuration-property name="compiler.emulatedStack.recordLineNumbers" value="true" />

  <set-configuration-property name="compiler.emulatedStack.recordFileNames" value="true" />

  <set-property name="user.agent" value="gecko1_8,safari,ie10"/>

  <collapse-property name="user.agent" values="*" />

</module>

$ cat $OUTPUT/compilation-mappings.txt

3A7A948DF28EE4B1A3BC2D30B5EBE9A5.cache.js

compiler.stackMode emulated

user.agent gecko1_8

3A7A948DF28EE4B1A3BC2D30B5EBE9A5.cache.js

compiler.stackMode emulated

user.agent safari

72E5334753971D9860C29F1DB12536AD.cache.js

compiler.stackMode native

user.agent gecko1_8

72E5334753971D9860C29F1DB12536AD.cache.js

compiler.stackMode native

user.agent safari

87CD617003E8B14B10B7CAFE63839A9D.cache.js

compiler.stackMode native

user.agent ie10

FAC6E4402FDB66011880FAA526D2A1B7.cache.js

compiler.stackMode emulated

user.agent ie10

On Monday, November 10, 2014 11:33:29 AM UTC+1, Thomas Broyer wrote:

Are you sure there isn't any other deferred binding property that could generate the second permutation?

The xsiframe linker (used by default in 2.7) should generate a compilation-mappings.txt file that can tell you which properties led to each permutation.

On Monday, November 10, 2014 1:11:00 AM UTC+1, Paul Wagland wrote:

Hi all,

So, I decided to try out our application with GWT 2.7.0-RC1. We don't use any of the widgets, only the Java->JavaScript compiler.

One of the things that I noticed, is when I specify:

  <set-property name="user.agent" value="gecko1_8,safari,ie10"/>

  <collapse-property name="user.agent" values="*" />

With versions prior to 2.7.0, this generated 1 permutation. With 2.7.0-RC1, it generates two. The only difference between the two generated javascript files is the names of the browsers, and the hashcode. I am sure that there would be differences in the widgets, but since I am not using them…

Is this a known change and/or issue? If so, is there any way to force 2.7.0 to only generate the one permutation?

Thanks in advance,

Paul

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