Infrastructure for AST transformations and factored out delay transformation #1508
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cmnrd
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petervdonovan,
lhstrh,
oowekyala and
marcusrossel
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oowekyala
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Dec 19, 2022
org.lflang/src/org/lflang/generator/cpp/CppDelayBodyGenerator.kt
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This was referenced Dec 19, 2022
marcusrossel
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Dec 19, 2022
lhstrh
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Dec 19, 2022
| /** | ||
| * Apply the AST transformation to all given reactors. | ||
| */ | ||
| void applyTransformation(List<Reactor> reactors); |
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I would change this to take in the entire resource so that the interface is more general.
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Yes, my first intuition was also to pass the model and/or the resource. However, it appears that there is some intelligence built into generating this list of reactors (this is handled by the instance graph). We would need to duplicate that code or refactor it to make it reusable, but I wanted to avoid spending too much time on this. Also I am not sure which information other than transformations we would need. I suggest to revisit this as part of fixing #1510
org.lflang/src/org/lflang/generator/cpp/CppDelayBodyGenerator.kt
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Co-authored-by: Marten Lohstroh <marten@berkeley.edu>
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The main motivation of this PR is to apply the after delay transformation only optionally when needed by the target.
Currently, the after delay transformation is handled in between some other important passes in
GeneratorBaseand cannot easily be moved such that it can be called directly by our code generators before or after invokingGeneratorBase. Therefore, this PR introduces aTransformationinterface which allows the target generators to register transformations which are then automatically applied.This PR implements the
AfterDelayTransformationand factors out the target specific code into a new interfaceDelayBodyGeneratorwhich the targets need to provide.