Compile scoped expressions with SymbolSource compatibility - #96
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A declaration answered two questions from one fact: whether a value may be absent, and whether the caller must supply one at all. The second was derived from the first, so an absence-admitting type could always be omitted — and a host with a "no value" answer could not tell the chosen answer from no answer yet. Input splits them. Input::of(Type) is the reading a bare Type already has; Input::demanded(Type) keeps what the type says about absence and overrides what it says about supply. Declarations normalize to Inputs at ingestion, so inference is handed the same Type map as before. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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Summary
ScopedExpressioncompilation and evaluation for separately bound source bodiesSymbolSourcecompatibility, including namespaced member chains, while normalizing dependency identity toReferencePathWhy
Some Axiom hosts need to compile a source body once and evaluate it repeatedly against a separately bound local record.
ScopedExpressionprovides that lexical boundary without inventing another path representation or weakening the outer program's dependency analysis.This capability is independent of Product Catalogue's Axiom #93 migration. It is stacked on #93 only because it extends the structural declaration and reference model introduced there.
Validation
Depends on #93.