Sam De Roeck

ServiceCatalogDigest Summary: Add deterministic `ServiceCatalog` and `ServiceDescriptor` digests, inspired by the `TypeSystemDigest` equivalents. Equivalent to `TypeSystemDigest`, the runtime representations (e.g. `ServiceCatalog` and its nodes) will provide an equivalent digest to the serialized representations (e.g. `SerializedServiceCatalog`). In addition, it is also fully platform independent, so the digest can be calculated deterministically in all supported languages & on all supported architectures. Rust port of D110799794. Differential Revision: D110917277 fbshipit-source-id: 3b182fe8f74a7eabcd9819b2772f1092a1885f6d

ServiceCatalogDigest Summary: Add deterministic `ServiceCatalog` and `ServiceDescriptor` digests, inspired by the `TypeSystemDigest` equivalents. Equivalent to `TypeSystemDigest`, the runtime representations (e.g. `ServiceCatalog` and its nodes) will provide an equivalent digest to the serialized representations (e.g. `SerializedServiceCatalog`). In addition, it is also fully platform independent, so the digest can be calculated deterministically in all supported languages & on all supported architectures. Reviewed By: iahs Differential Revision: D110799794 fbshipit-source-id: bcbe31bbd7bb68bc65d32c7019921bad20d25443

Execute transcode plans on the interpreter Summary: Add `TranscodeInterpreter`, an interpreter-style execution engine that walks `TranscodePlan` tree and invokes the shared cursor/protocol intrinsics to read one encoding and write another. ___ Differential Revision: D110793295 fbshipit-source-id: 16b393b6587bdccb9a22f0a1380e06385e6523e6

Golden test fixtures Summary: Adds golden protocol coverage for representative Thrift shapes so interpreter changes can be checked against Compact, Binary, and JSON serializer behavior. ___ Differential Revision: D112931048 fbshipit-source-id: cd5769cc3ae2483945826da1809e9bea67cb70e5

Read JSON input on the interpreter Summary: Teaches the `interpreter` engine to consume JSON sources for structs, arrays, scalars, and maps, including default emission, union validation, unknown-field skipping, and map key coercion. ___ Differential Revision: D112926691 fbshipit-source-id: 8b1f3f47c75c8c188a2d790cea0572fbca4fd61d

Add Go TypeSystem digest support Summary: Adds a Go package for `TypeSystemDigest`, i.e. the canonical SHA-256 language-independent hash for thrift types & schemas. The implementation follows the same composition model as the Rust `TypeSystemDigest` trait: top-level digestable values expose `Digest` and `DigestWithMode`, and every nested digestable node contributes bytes through `hashInto`. Generated thrift values and scalar primitives are adapted into that interface, so the hasher only owns raw byte writing and ordering helpers. ___ Differential Revision: D113784936 fbshipit-source-id: 89948f340289775ebadab5a0788978601288c37f

Parse and emit JSON scalar values Summary: The JSON leaf endpoint of the wire layer: - decimal number parse and format - escape-aware quoted-string parse and format - a strict true/false keyword reader - recursive value skipping JSON is the untrusted REST-facing edge, so the reader validates every byte it consumes rather than trusting a producer. The object and array framing around these leaves is handled higher up by the engines. ___ Reviewed By: iahs Differential Revision: D110531079 fbshipit-source-id: 4e0569a69dca995a2c97a835ed0df1e0d3ec8bdb

Share the byte primitives common to every wire format Summary: The base of the wire layer: the byte primitives every protocol reuses. - varints, plain and zigzag - fixed-width integers - length-prefixed byte ranges - the `WireType` guard over Thrift's `TType` These are the extern "C" symbols the JIT resolves and the interpreter calls, so both engines share one implementation of the hot primitives and every per-protocol framing layer builds on the same base. ___ Differential Revision: D110530595 fbshipit-source-id: f544f8f6d91eae2b2b1bd163bd24dfc40e9200b4

Cursor API Summary: The cursor is the I/O layer beneath the transcoding kernel, the byte stream that every wire intrinsic reads and writes through: - tracks the read and write positions - grows the output buffer through a caller-supplied reallocator - back-patches length and count headers via mark/skip/patch, for values whose size isn't known until a container is finished ___ Differential Revision: D110529893 fbshipit-source-id: 013dc447998a101cce4c44068cb4216c38806c1c

Serialize service descriptor interactions Summary: Preserve interaction constructors by carrying created interaction URIs, exposing interaction descriptors on ServiceDescriptor, and serializing referenced interaction interfaces in SerializableServiceCatalog. Reviewed By: iahs Differential Revision: D110793108 fbshipit-source-id: c3fa0765d53be6fe3cdc0ff179a229325b5f8ad3