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The help tooltip of the 'precondition' input for a drop description only list 'container' variable. This variable isn't available but some other are. I listed: * newViewContainer (shouldn't it be newContainerView as usual?) * element There can be many others...
Created attachment 259668 [details] Sample project to reproduce Hi Charlie, I reproduce the issue at runtime. Indeed the container variable is available at completion and validation doesn't detect this issue but at runtime this variable is not available. While using for example "newSemanticContainer" variable which is declared in the tool, at runtime the precondition works correctly. Scenario to reproduce : 1. Import the attached project 2. Open the odesign and the diagram 3. In the precondition of the drop tool, use completion with var: and aql: to see the presence of "container" variable while it should not appears And see the missing others variables (oldSemanticContainer, newSemanticContainer, element, newContainerView) 4. At runtime test drag'n drop of EPackage in the diagram with the following expression : "aql:container.oclIsKindOf(ecore::EPackage)" => KO the drag'n drop doesn't works, no exception is thrown in error log and odesign validation show no error. While without this expression the drop tool works fine. 5. Now test drag'n drop with the following expression : "aql:newSemanticContainer.oclIsKindOf(ecore::EPackage)" Now it works, at runtime "newSemanticContainer" variable is recognized while not at completion and validation.
