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[spec] Test subsumption in return call result types #2211

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Merged
rossberg merged 3 commits into from
Jul 23, 2026
+33 −0
Merged

[spec] Test subsumption in return call result types #2211

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[spec] test subsumption in return call result types
CharlieTap Jul 19, 2026
1e48b58
use folded expression style and relocate tests
CharlieTap Jul 19, 2026
25d8d85
rework tests into non gc suites
CharlieTap Jul 22, 2026
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38 changes: 38 additions & 0 deletions test/core/gc/type-subtyping.wast
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Original file line number Diff line number Diff line change
Expand Up @@ -112,6 +112,23 @@
)
)

(module
(func $f (result (ref array)) unreachable)
(func (result (ref eq))
return_call $f
)
)

(assert_invalid
(module
(func $f (result (ref eq)) unreachable)
(func (result (ref array))
return_call $f
)
)
"type mismatch"
)

(module
(rec (type $f1 (sub (func))) (type (struct (field (ref $f1)))))
(rec (type $f2 (sub (func))) (type (struct (field (ref $f2)))))
Expand Down Expand Up @@ -399,6 +416,27 @@
(assert_trap (invoke "fail1") "indirect call type mismatch")
(assert_trap (invoke "fail2") "indirect call type mismatch")

(module
(type $t (func (result (ref array))))
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(table 0 funcref)
(func (result (ref eq))
i32.const 0
return_call_indirect (type $t)
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)
)

(assert_invalid
(module
(type $t (func (result (ref eq))))
(table 0 funcref)
(func (result (ref array))
i32.const 0
return_call_indirect (type $t)
)
)
"type mismatch"
)

(module
(rec (type $f1 (sub (func))) (type (struct (field (ref $f1)))))
(rec (type $f2 (sub (func))) (type (struct (field (ref $f2)))))
Expand Down
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