Comments (2)
Bogdanp
commented on July 21, 2024
What do you mean when you say AST printer? A pretty printer? If so, something like that isn't planned and it would be a welcome contribution, but I'd urge you to wait until after Elm 0.18 comes out as I'm likely going to make some significant changes to support positional information in the AST after it does.
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liamcurry
commented on July 21, 2024
Basically a function that would take in any Elm AST record and output a string of Elm code. An AST by itself is good for introspection, but a printer is needed to make building/modifying ASTs useful. Some things that would be possible with an Elm AST parser + printer:
- Rewriting
elm-formatin Elm (@avh4, thoughts?) - Converting a GraphQL introspection query into Elm code
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Related Issues (20)
- Operator location with whitespace around
- Pattern matching exception
- Allow nested comments
- Variables can't be negated with a minus HOT 2
- Parse error: function accessed with module name HOT 2
- Can't name values starting with keywords HOT 1
- Parse character escape codes
- Can't parse type tuples with functions inside
- Function type declaration in let expression HOT 1
- `::` doesn't compose with other operators HOT 2
- Can't parse record updates as a non-last parameter in a function
- Bad performance on arguments in new lines
- Fast and correct type parsing written by Elm core team HOT 5
- Add correct parsing of hex numbers
- Can't parse tuples with empty records. HOT 1
- Regex parser for name should not include '-' character for elm 0.18 HOT 1
- Parsing lambdas is extremely slow HOT 1
- Comments may cause parsing failure HOT 1
- Cannot parse an empty list with a space in it
- 0.19 Status? HOT 5
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