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Basic type inference and solving for abilities

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Note that is still pretty limited. We only permit opaque types to
implement abilities, abilities cannot have type arguments, and also no
other functions may depend on abilities
This commit is contained in:
Ayaz Hafiz 2022-04-12 15:37:16 -04:00
parent 913d97cab1
commit 15a040ec87
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GPG key ID: 0E2A37416A25EF58
25 changed files with 1808 additions and 477 deletions
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18
compiler/mono/src/layout_soa.rs
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@ -137,8 +137,10 @@ impl FunctionLayout {
use LayoutError::*;
match content {
Content::FlexVar(_) => Err(UnresolvedVariable(var)),
Content::RigidVar(_) => Err(UnresolvedVariable(var)),
Content::FlexVar(_)
| Content::RigidVar(_)
| Content::FlexAbleVar(_, _)
| Content::RigidAbleVar(_, _) => Err(UnresolvedVariable(var)),
Content::RecursionVar { .. } => Err(TypeError(())),
Content::Structure(flat_type) => Self::from_flat_type(layouts, subs, flat_type),
Content::Alias(_, _, actual, _) => Self::from_var_help(layouts, subs, *actual),
@ -243,8 +245,10 @@ impl LambdaSet {
use LayoutError::*;
match content {
Content::FlexVar(_) => Err(UnresolvedVariable(var)),
Content::RigidVar(_) => Err(UnresolvedVariable(var)),
Content::FlexVar(_)
| Content::RigidVar(_)
| Content::FlexAbleVar(_, _)
| Content::RigidAbleVar(_, _) => Err(UnresolvedVariable(var)),
Content::RecursionVar { .. } => {
unreachable!("lambda sets cannot currently be recursive")
}
@ -627,8 +631,10 @@ impl Layout {
use LayoutError::*;
match content {
Content::FlexVar(_) => Err(UnresolvedVariable(var)),
Content::RigidVar(_) => Err(UnresolvedVariable(var)),
Content::FlexVar(_)
| Content::RigidVar(_)
| Content::FlexAbleVar(_, _)
| Content::RigidAbleVar(_, _) => Err(UnresolvedVariable(var)),
Content::RecursionVar {
structure,
opt_name: _,