refactor(napi/parser): raw transfer: introduce metadata struct

[overlookmotel]

Pure refactor. Introduce a RawTransferMetadata struct to hold metadata that gets written to end of buffer. Codegen use knowledge of memory layout of this struct to generate constants added in #12268. This is more robust than manually calculating offsets.

[overlookmotel]

• refactor(napi/parser): raw transfer: introduce metadata struct #12269 👈 (View in Graphite)
• refactor(napi/parser, allocator): raw transfer: store buffer size and align as consts #12275
• refactor(napi/parser): raw transfer: store offsets as consts #12268
• perf(napi/parser): raw transfer: move check for supported platform #12274
• refactor(napi/parser): correct comment about raw transfer buffer size #12273
• refactor(allocator): disable fixed size allocators on unsupported platforms #12272
• refactor(napi/parser): do not compile raw transfer code on WASM #12271
• main

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[codspeed-hq]

CodSpeed Instrumentation Performance Report

Merging #12269 will not alter performance

_{Comparing 07-14-refactor_napi_parser_introduce_struct_for_metadata (5fba91c) with 07-14-refactor_napi_parser_allocator_raw_transfer_store_buffer_size_and_align_as_consts (39ef911)}

Summary

✅ 34 untouched benchmarks

[overlookmotel]

Merge activity

• Jul 14, 6:51 PM UTC: The merge label '0-merge' was detected. This PR will be added to the Graphite merge queue once it meets the requirements.
• Jul 14, 7:28 PM UTC: overlookmotel added this pull request to the Graphite merge queue.
• Jul 14, 7:47 PM UTC: Merged by the Graphite merge queue.