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Sema: add typeHasOnePossibleValue logic for InternPool

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Andrew Kelley 2023-05-05 20:34:19 -07:00
parent 31aee50c1a
commit 9626811725
1 changed files with 16 additions and 3 deletions
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19
src/Sema.zig
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@ -32950,14 +32950,27 @@ pub fn typeHasOnePossibleValue(sema: *Sema, ty: Type) CompileError!?Value {
}
},
.ptr_type => return null,
.array_type => @panic("TODO"),
.array_type => |array_type| {
if (array_type.len == 0)
return Value.initTag(.empty_array);
if ((try sema.typeHasOnePossibleValue(array_type.child.toType())) != null) {
return Value.initTag(.the_only_possible_value);
}
return null;
},
.vector_type => |vector_type| {
if (vector_type.len == 0) return Value.initTag(.empty_array);
if (try sema.typeHasOnePossibleValue(vector_type.child.toType())) |v| return v;
return null;
},
.opt_type => @panic("TODO"),
.error_union_type => @panic("TODO"),
.opt_type => |child| {
if (child.toType().isNoReturn()) {
return Value.null;
} else {
return null;
}
},
.error_union_type => return null,
.simple_type => |t| switch (t) {
.f16,
.f32,