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Take a stab at assigning class declarations.

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Rob Rix 2017-04-06 09:40:47 -04:00
parent ecc1c075a6
commit 376de45263
1 changed files with 4 additions and 2 deletions
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6
src/Language/Ruby/Syntax.hs
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@ -52,13 +52,15 @@ type Program = Freer
-- | Statically-known rules corresponding to symbols in the grammar.
data Grammar = Program | Uninterpreted | BeginBlock | EndBlock | Undef | Alias | Comment | True' | False' | Return | Yield | Break | Next | Redo | Retry | IfModifier | UnlessModifier | WhileModifier | UntilModifier | RescueModifier | While | Until | For | Do | Case | When | Pattern | If | Unless | Elsif | Else | Begin | Ensure | Rescue | Exceptions | ExceptionVariable | ElementReference | ScopeResolution | Call | MethodCall | ArgumentList | ArgumentListWithParens | SplatArgument | HashSplatArgument | BlockArgument | Class
data Grammar = Program | Uninterpreted | BeginBlock | EndBlock | Undef | Alias | Comment | True' | False' | Return | Yield | Break | Next | Redo | Retry | IfModifier | UnlessModifier | WhileModifier | UntilModifier | RescueModifier | While | Until | For | Do | Case | When | Pattern | If | Unless | Elsif | Else | Begin | Ensure | Rescue | Exceptions | ExceptionVariable | ElementReference | ScopeResolution | Call | MethodCall | ArgumentList | ArgumentListWithParens | SplatArgument | HashSplatArgument | BlockArgument | Class | Constant
deriving (Enum, Eq, Ord, Show)
-- | Assignment from AST in Ruby’s grammar onto a program in Ruby’s syntax.
assignment :: Assignment Grammar (Program Syntax (Maybe a))
assignment = foldr (>>) (pure Nothing) <$> rule Program (children declaration)
where declaration = comment
where declaration = comment <|> class'
class' = rule Class (wrapU <$> (Declaration.Class <$> constant <*> pure [] <*> declaration))
constant = rule Constant (wrapU <$> (Syntax.Identifier <$> content))
comment :: Assignment Grammar (Program Syntax a)
comment = wrapU . Comment.Comment <$> (rule Comment content)