API + stdlib catalog

One landing map for language semantics, hosted compatibility modules, native/system surfaces and future platform-specific escape hatches.

00 read this catalog correctly§

LANGUAGE CORE      canonical v12 semantics
HOSTED STDLIB      compatibility modules documented by the hosted language surface
SYSTEMS            target/profile-gated native interfaces
PLATFORM           OS-specific escape hatches; future names stay roadmap-only

PROVENANCE: this index does not promote a historical hosted module or a proposed platform namespace into a new v12 semantic guarantee.

10 language core§

Area	Reference	Scope
Basics	variables, literals, control flow, functions, imports	developer entry surface
Generics	generic functions and monomorphization	canonical HIR
Enums · Result · match	payload enums · Result + ? · match	typed control/data flow
Ownership · borrowing	ownership · borrowing	Copy/move and lexical borrows
Views	slices · StringView	borrowed views; not owned String
Callables · cleanup	function values · closures · defer	bounded v12 callable/cleanup model
C ABI	i686 C ABI	bounded cdecl subset in the v12.0 native lineage

20 hosted compatibility modules§

HOSTED COMPATIBILITY · NOT A NEW V12 STDLIB REDESIGN

Module	Current documented symbols
`std.fs`	`read_text`, `write_text`, `read_bytes`, `write_bytes`, `exists`
`std.encoding`	`hex_encode`, `hex_decode`
`std.hash`	`sha256`
`std.buffer`	`new`, `from_bytes`, `to_bytes`, `len`, `get`, `set`, `slice`, `load`, `save`, `find`, `replace`
`std.binary`	u8/i8, 16/32-bit LE/BE reads, 16/32-bit LE/BE writes
`std.math`	`abs`, `min`, `max`
`std.env`	`args`
built-ins	`print`, `len` on documented hosted types

Use the symbol-level Hosted stdlib reference for signatures and provenance notes.

30 systems APIs§

Surface	Reference	Boundary
`native.*`	Native intrinsics	privileged/profile-gated
DBYTE32	DBYTE32 ABI	native calling/layout contract
packed layouts	Layouts	hardware/data representation
interrupts	Interrupts	kernel profile only
user syscalls	User process 11.11	user profile; frozen machine lineage

40 compiler · artifact surface§

dbyte run source.dby
dbyte run --vm source.dby
dbyte inspect source.dby --hir --generics --layout

dbytec build source.dby --target i686-dbyte-none --emit obj -o source.o
dbytec build source.dby --target i686-dbyte-none --emit staticlib -o libname.a
dbytec link main.o libname.a -o app.elf

See CLI, ELF objects, static archives, linker, and targets.

50 platform namespaces§

CURRENT v12.0
  native.*                profile-gated systems surface

PROPOSED / NOT SHIPPED
  platform.linux.*
  platform.windows.*

PORTABLE POST-v12 DIRECTION
  std.fs
  std.time
  std.process
  std.net
  std.thread

At the v12.0 baseline, proposed platform escape hatches were tracked in the historical v12.3 roadmap. That roadmap is superseded by the shipped v12.2 modern-native release; this statement remains only v12.0 API-boundary context.

60 deferred runtime types§

NOT IN v12.0
  owned String
  dynamic Array[T]
  collections
  allocator abstraction
  automatic Drop
  concurrency / async I/O
  package manager

Read the current release contract before assuming a reference name implies a mature general-purpose runtime.