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- Closes #2330 - Closes #2329 This pr implements the syntax changes described in #2330. It drops support for the old yaml-based syntax. Some valid examples: ``` syntax iterator for {init := 1; range := 1}; syntax fixity cons := binary {assoc := right}; syntax fixity cmp := binary; syntax fixity cmp := binary {}; -- debatable whether we want to accept empty {} or not. I think we should ``` # Future work This pr creates an asymmetry between iterators and operators definitions. Iterators definition do not require a constructor. We could add it to make it homogeneous, but it looks a bit redundant: ``` syntax iterator for := mkIterator {init := 1; range := 1}; ``` We could consider merging iterator and fixity declarations with this alternative syntax. ``` syntax XXX for := iterator {init := 1; range := 1}; syntax XXX cons := binary {assoc := right}; ``` where `XXX` is a common keyword. Suggestion by @lukaszcz XXX = declare --------- Co-authored-by: Łukasz Czajka <62751+lukaszcz@users.noreply.github.com> Co-authored-by: Lukasz Czajka <lukasz@heliax.dev>
13 lines
224 B
Plaintext
13 lines
224 B
Plaintext
module Iterators2;
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syntax iterator bind {range := 1};
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bind : {A B : Type} → (A → B) → A → B
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| f x := f x;
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builtin bool
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type Bool :=
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| true : Bool
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| false : Bool;
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main : Bool := bind (x in true; y in false) x;
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