Syntax.Parse.PatternSemantics

Pure Pattern action lowerings used by the generated structural parser.

Functions and Values

pattern_int : (String, Bool, Syntax.Source.Span) -> Syntax.Ast.Sp(Syntax.Ast.Pat)

Lower an integer literal pattern, splitting off its width suffix and folding a leading minus into the digits.

pattern_float : (String, Bool, Syntax.Source.Span) -> Syntax.Ast.Sp(Syntax.Ast.Pat)

Lower a float literal pattern, folding a leading minus into the value.

pattern_list : (List(Syntax.Ast.Sp(Syntax.Ast.Pat)), Syntax.Source.Span) -> Syntax.Ast.Sp(Syntax.Ast.Pat)

Lower a list literal pattern to the Cons/Nil spine it abbreviates.