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Language.Copilot.Analyser |
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Description |
This module provides a way to check that a Copilot specification is compilable
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Synopsis |
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Main error checking functions
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check :: StreamableMaps Spec -> Maybe Error |
Check a Copilot specification.
If it is not compilable, then returns an error describing the issue.
Else, returns Nothing
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data Error |
Used for representing an error in the specification, detected by check
| Constructors | BadSyntax String Var | the BNF is not respected
| BadDrop Int Var | A drop expression of less than 0 is used
| BadSamplingPhase Var Var Phase | if an external variable is sampled at phase 0 then there is no time for the stream to be updated
| BadType Var Var | either a variable is not defined, or not with the good type ; there is no implicit conversion of types in Copilot
| NonNegativeWeightedClosedPath [Var] Weight | The algorithm to compile Copilot specification can only work if there is no negative weighted closed path in the specification, as described in the original research paper
| DependsOnClosePast [Var] Var Weight Weight | Could be compiled, but would need bigger prophecyArrays
| DependsOnFuture [Var] Var Weight | If an output depends of a future of an input it will be hard to compile to say the least
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| Instances | |
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data SpecSet |
Constructors | AllSpecSet | | FunSpecSet | | DropSpecSet | |
| Instances | |
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Varied other things
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getExternalVars :: StreamableMaps Spec -> [(Type, Var, Phase)] |
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getAtomType :: Streamable a => Spec a -> Type |
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Produced by Haddock version 2.6.1 |