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[spec] Validation for exact heap types #97

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Merged
tlively merged 2 commits into from
Mar 3, 2026
Merged

[spec] Validation for exact heap types #97

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e81a8f9
[spec] Validation for exact heap types
tlively Mar 2, 2026
37ef5c4
remove trivial rule from doc
tlively Mar 3, 2026
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3 changes: 2 additions & 1 deletion document/core/valid/matching.rst
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Expand Up @@ -39,7 +39,8 @@ Heap Types
$${rule-prose: Heaptype_sub}

$${rule:
{Heaptype_sub/refl Heaptype_sub/trans}
{Heaptype_sub/refl Heaptype_sub/exact-l}
{Heaptype_sub/trans}
{Heaptype_sub/eq-any Heaptype_sub/i31-eq Heaptype_sub/struct-eq Heaptype_sub/array-eq}
{Heaptype_sub/struct Heaptype_sub/array Heaptype_sub/func}
{Heaptype_sub/typeidx-l Heaptype_sub/typeidx-r}
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4 changes: 4 additions & 0 deletions document/core/valid/types.rst
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Expand Up @@ -58,6 +58,10 @@ $${rule-prose: Heaptype_ok/abs}

$${rule: Heaptype_ok/abs}

$${rule-prose: Heaptype_ok/exact}

$${rule: Heaptype_ok/exact}


.. index:: reference type, heap type
pair: validation; reference type
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4 changes: 4 additions & 0 deletions specification/wasm-latest/2.1-validation.types.spectec
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Expand Up @@ -24,6 +24,10 @@ rule Heaptype_ok/typeuse:
C |- typeuse : OK
-- Typeuse_ok: C |- typeuse : OK

rule Heaptype_ok/exact:
C |- EXACT typeuse : OK
-- Typeuse_ok: C |- typeuse : OK

rule Reftype_ok:
C |- REF NULL? heaptype : OK
-- Heaptype_ok: C |- heaptype : OK
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4 changes: 4 additions & 0 deletions specification/wasm-latest/2.2-validation.subtyping.spectec
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Expand Up @@ -20,6 +20,10 @@ rule Vectype_sub:
rule Heaptype_sub/refl:
C |- heaptype <: heaptype

rule Heaptype_sub/exact-l:
C |- EXACT typeuse <: heaptype
-- Heaptype_sub: C |- typeuse <: heaptype

rule Heaptype_sub/trans:
C |- heaptype_1 <: heaptype_2
-- Heaptype_ok: C |- heaptype' : OK
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