Bug 456140

Description Pierre-Charles David 2014-12-24 07:40:59 EST

When defining a TreeItem in a Tree description, some variables are supposed to be available for the semantic candidates expression (container, containerView...).
To put it simply, they are actually not available.

This is a major problem because it is thus impossible to know anything about the context excepted the semantic element defined by self (which should be the same than "container").

- For a TreeItem, "container" is never available using "var:container" or "[container/]"
- For tables, there is no problem.

Steps to reproduce :
- import the 2 provided projects : vsm and test project.
- open the tree and table
- in the tree, only one level is displayed
- in the table, 2 levels are displayed

Reproduced on Sirius master (3.0M4+), with an entry in the error log saying Compilation error for expression [container/] : Unrecognized variable: (container) when opening or refreshing the tree editor.

The root cause seems to be in org.eclipse.sirius.tree.business.internal.dialect.common.viewpoint.MappingBasedPartition.evaluate(EObject), which evaluates the semanticCandidatesExpression without setting any variable. Compare with org.eclipse.sirius.table.business.internal.refresh.DTableSynchronizerImpl.computeCurrentStatus(LineContainer, LineMapping, ECrossReferenceAdapter), which sets up containerView/container/root/viewpoint/table.