Generated parse_<ctor>(...) for constructors with conditional fields
used to emit 'if Int(_N!) & Int(1 << K) != 0 { ... }' as the gate,
and 'let _cM = (Int(_N!) & Int(1 << K) == 0) || _M != nil' as the
per-field validation. Both force-unwrap _N (the flags field read)
before the bottom-of-function '_cN = _N != nil' validation runs,
so a buffer short enough to fail the flags read traps
deterministically instead of returning nil.
Replace the force-unwraps with (_N ?? 0). Missing flags then reads
as "all bits off": every gated branch is skipped, each flag-gated
_cM short-circuits to true via the '== 0' clause, and the flags
field's own _cN = _N != nil still fails so the overall constructor
validation falls through to return nil — matching the intended
"return nil on truncated buffer" contract.
Touches both generator emit paths (flat generateImplFile and layered
emitLayeredType). Regenerated Api*/SecretApiLayer*.swift follow in a
separate commit.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Flat schemas keep the existing generate(...) pipeline. Layered
schemas iterate resolveLayeredTypes and write one
{apiPrefix}Layer{N}.swift per layer via generateLayered.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Emits one {apiPrefix}Layer{N}.swift file per layer: file-scope
dispatch table, public struct {apiPrefix}{N} with parse/parseVector/
serializeObject, nested public enums for each sum type using the
inline-args shape. Int256 dispatch entry emitted only when a layer's
constructors reference it. Reuses typeReferenceRepresentation /
generateFieldSerialization / generateFieldParsing unchanged, passing
the struct name as the apiPrefix so nested type refs render correctly.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Walks layer sections in order, threads a running constructor-name map
with last-wins semantics, and snapshots [SumType] at each layer
boundary. Constructors appearing only in later layers do not leak into
earlier layers' snapshots.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
DescriptionParser.parse(data:) now returns ParsedSchema (.flat or
.layered) based on the presence of ===N=== markers. Layered schemas
split constructor lines per layer; pre-marker constructors attach to
the lowest-numbered layer; ---functions--- is rejected in layered
mode; non-ascending markers throw.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Preparation for layered schema generation. Threads apiPrefix: String
through CodeGenerator.generate / generateMainFile / generateImplFile
/ typeReferenceRepresentation so the output's namespace name can
come from the --api-prefix=<prefix> CLI flag rather than a hard-coded
"Api". Drops the --stub-functions and --print-constructors=N-M flags
(both unused) and the LegacyOrderParser.swift file (obsolete migration
helper that re-parsed hand-emitted Api0.swift).
No behavior change for the flat Api*.swift output when
--api-prefix=Api (the default). Enables the upcoming layered secret-
scheme pipeline to reuse the same generator helpers.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
