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[js-api] Fix ToWebAssemblyValue's host-value-cache hit skipping the type check #2257

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[js-api] Fix ToWebAssemblyValue's host-value-cache hit skipping the type check #2257

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9 changes: 5 additions & 4 deletions document/js-api/index.bs
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Original file line number Diff line number Diff line change
Expand Up @@ -1473,10 +1473,11 @@ The algorithm <dfn>ToWebAssemblyValue</dfn>(|v|, |type|) coerces a JavaScript va
1. Else,
1. Let |map| be the [=surrounding agent=]'s associated [=host value cache=].
1. If a [=host address=] |hostaddr| exists such that |map|[|hostaddr|] is the same as |v|,
1. Return [=ref.host=] |hostaddr|.
1. Let |hostaddr| be the smallest [=host address=] such that |map|[|hostaddr|] [=map/exists=] is false.
1. [=map/Set=] |map|[|hostaddr|] to |v|.
1. Let |r| be [=ref.host=] |hostaddr|.
1. Let |r| be [=ref.host=] |hostaddr|.
1. Else,
1. Let |hostaddr| be the smallest [=host address=] such that |map|[|hostaddr|] [=map/exists=] is false.
1. [=map/Set=] |map|[|hostaddr|] to |v|.
1. Let |r| be [=ref.host=] |hostaddr|.
1. Let |store| be the [=surrounding agent=]'s [=associated store=].
1. Let |actualtype| be [=ref_type=](|store|, |r|).
1. If [=match_valtype=](|actualtype|, |type|) is false,
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