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feat(List): add walk function and fix walkBackwards

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This commit is contained in:
rvcas 2020-11-24 09:01:03 -05:00
parent d9e906b8fb
commit 8feab843ea
9 changed files with 210 additions and 26 deletions
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15
compiler/builtins/src/std.rs
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@ -489,7 +489,20 @@ pub fn types() -> MutMap<Symbol, (SolvedType, Region)> {
),
);
// walkRight : List elem, (elem -> accum -> accum), accum -> accum
// walk : List elem, (elem -> accum -> accum), accum -> accum
add_type(
Symbol::LIST_WALK,
top_level_function(
vec![
list_type(flex(TVAR1)),
closure(vec![flex(TVAR1), flex(TVAR2)], TVAR3, Box::new(flex(TVAR2))),
flex(TVAR2),
],
Box::new(flex(TVAR2)),
),
);
// walkBackwards : List elem, (elem -> accum -> accum), accum -> accum
add_type(
Symbol::LIST_WALK_BACKWARDS,
top_level_function(