Comments (1)
After fixing the compiler (commit), the following model
abstract FeatureModel
abstract Feature
[ parent in Feature, FeatureModel]
FM : FeatureModel
F1 : Feature
F2 : Feature
produces a correct Choco output with a statement
c0_Feature.addConstraint($in(joinParent($this()), union(global(c0_Feature), global(c0_FeatureModel))));
for which Choco errors with
Exception in thread "main" org.clafer.ast.analysis.TypeException: Cannot join abstract c0_Feature . parent
Also, the model produces an incorrect Alloy output
abstract sig c0_Feature
{}
{ (this.~@r_c0_Feature) in (c0_Feature + c0_FeatureModel) }
because r_c0_Feature
is not defined. Actually, it should be a derived union of the parents of the concrete clafers:
r_c0_Feature = r_c0_F1 + r_c0_F2
so, the correct Alloy code should be
abstract sig c0_Feature
{}
{ (this.~@(r_c0_F1 + r_c0_F2) in (c0_Feature + c0_FeatureModel) }
from clafer.
Related Issues (20)
- Incorrect neutral element for missing values
- Top-level abstract clafer extending a nested abstract clafer HOT 2
- The help message of claferIG does not explain how to change global scope HOT 1
- Precedence of ternary conditional expression in Clafer HOT 2
- Optimize away navigation paths to clafers with global cardinality <= 1
- Choco output should reflect the IR for group cardinality inheritance HOT 6
- Compiler enters infinite loop on inheritance by same type HOT 1
- Cannot inherit from a nested abstract clafer which itself has a superclafer
- add support for min and max to Alloy generator
- add backend compatibility information to the CheatSheet HOT 1
- Allow inheritance from concrete clafers
- Fresh install of 0.4.3 from Hackage fails HOT 2
- Allow navigation paths containing <:
- Incorrect ambiguous name error
- help debugging the "dref problem"
- incorrect choco output for reference to a constant HOT 2
- allow self-explanatory parent expression HOT 1
- desugar enum to abstract final clafer in dynamic model
- Link broken for binary distribution? HOT 3
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from clafer.