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[Framework] Add clarifying comments

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Add clarifying comments to code responsible for registering
empty extension categories, WTD-518.
This commit is contained in:
Victor Woeltjen 2014-11-05 13:42:51 -08:00
parent aeb670bf5f
commit 2f0ea19750
1 changed files with 7 additions and 0 deletions
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7
platform/framework/src/register/ExtensionRegistrar.js
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@ -111,6 +111,8 @@ define(
return index !== -1;
}
// Examine a group of resolved dependencies to determine
// which extension categories still need to be satisfied.
function findEmptyExtensionDependencies(extensionGroup) {
var needed = {},
categories = Object.keys(extensionGroup),
@ -141,6 +143,9 @@ define(
}
// Register any extension categories that are depended-upon but
// have not been declared anywhere; such dependencies are then
// satisfied by an empty array, instead of not at all.
function registerEmptyDependencies(extensionGroup) {
findEmptyExtensionDependencies(
extensionGroup
@ -151,6 +156,7 @@ define(
}
function registerExtensionGroup(extensionGroup) {
// Register all declared extensions by category
Object.keys(extensionGroup).forEach(function (category) {
registerExtensionsForCategory(
category,
@ -158,6 +164,7 @@ define(
);
});
// Also handle categories which are needed but not declared
registerEmptyDependencies(extensionGroup);
// Return the application to which these extensions