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Merge remote-tracking branch 'origin/trunk' into backpassing

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Folkert 2021-03-06 19:01:39 +01:00
commit dbb4758cb9
40 changed files with 3279 additions and 2638 deletions
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13
compiler/builtins/src/std.rs
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@ -804,6 +804,19 @@ pub fn types() -> MutMap<Symbol, (SolvedType, Region)> {
)
});
// map2 : List a, List b, (a, b -> c) -> List c
add_type(Symbol::LIST_MAP2, {
let_tvars! {a, b, c, cvar};
top_level_function(
vec![
list_type(flex(a)),
list_type(flex(b)),
closure(vec![flex(a), flex(b)], cvar, Box::new(flex(c))),
],
Box::new(list_type(flex(c))),
)
});
// append : List elem, elem -> List elem
add_type(
Symbol::LIST_APPEND,