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[spectec] Wasm 1.0: `$instantiate` missing premises

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Assessment

Difficulty
3/5
Estimated time
1-2 days
Newbie friendliness
68/100
Issue type
Bug
Clarity
Mostly clear
Activity status
Active
Tech stack
wasm
Domain
compilers

Research direction

Compare Wasm 1.0 Specification PDF section 4.5.4 with the SpecTec definition of $instantiate; the issue identifies three omitted premises. Trace the $instantiate entry point in SpecTec and represent all three checks, then verify that the formalization matches the PDF rule.

Written by the indexing model from the issue text.

Description

The Wasm 1.0 Specification PDF section 4.5.4 has the following three checks for $instantiate:

⊢ module : externtype_imⁿ → externtype_ex*
(S ⊢ externval : externtype)ⁿ
(⊢ externtype ≤ externtype_im)ⁿ

They are missing in Wasm 1.0 SpecTec.

Dominant language
WebAssembly
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Merged PRs (30d)
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