execution_tape: add aggregate ABI shape metadata#89
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waywardmonkeys merged 1 commit intoMay 31, 2026
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Keep ValueType::Agg as the runtime ABI kind, but add optional FunctionArgAggShapeEntry metadata to the Program container so frontends can refine aggregate arguments for verification. ProgramBuilder now accepts FunctionAbi in checked function entry points while preserving FunctionSig call sites via Into<FunctionAbi>. Seed verifier aggregate facts from ABI argument shapes at function entry, including tuple element types, struct type ids, and array element ids. This lets closure bodies project typed values from the hidden environment argument without routing internal capture reads through host calls. Migration: existing FunctionSig-based builder calls continue to compile; code that needs typed aggregate arguments can use FunctionSig::with_arg_agg_shape or FunctionSig::closure_body_with_env_shape.
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Keep ValueType::Agg as the runtime ABI kind, but add optional FunctionArgAggShapeEntry metadata to the Program container so frontends can refine aggregate arguments for verification. ProgramBuilder now accepts FunctionAbi in checked function entry points while preserving FunctionSig call sites via Into.
Seed verifier aggregate facts from ABI argument shapes at function entry, including tuple element types, struct type ids, and array element ids. This lets closure bodies project typed values from the hidden environment argument without routing internal capture reads through host calls.
Migration: existing FunctionSig-based builder calls continue to compile; code that needs typed aggregate arguments can use FunctionSig::with_arg_agg_shape or FunctionSig::closure_body_with_env_shape.