Jule 0.2.0

jule

• rename: cpp keyword as extern
• rename: bind term of the Integrated Jule as extern
• add: async runtime and update to the new concurrency model
• add: assignment and short variable declaration support for select statements

julec

• add: the --COMAXPROCS command-line argument
• add: Assembly file support for extern use declarations
• remove: support for C++ versions cpp14 and cpp17
• update: default C++ version to cpp20
• fix: code generation for single-case select statements
• fix: code generation for channel receive and send may be invalid when optimizations applied
• fix: deferred calls may not be executed before exceptional forwarding
• fix: use expression in exception handler scopes may ignore dynamic type casting
• fix: type-enums might be casted to a dynamic-type like non-dynamic types and cause dynamic type issues
• fix: the --opt-str optimization flag may cause segfault or unexpected results
• parser: fix void function type handling in expressions
• sema: fix tuples allowed in type inference of generic constraints

std

• remove: std/jule/integrated
• add: std/integ
• add: std/integ/c
• add: std/testing/iotest
• reimplement: std/encoding/base32
• reimplement: std/math/big
• runtime: reimplement channels and select statements
• runtime: add Yield, COMAXPROCS, Blocking
• (windows) runtime: fix nanotime works inconsistent
• std/bufio: update as async-first
• std/bufio: add Reader, Writer
• std/io: update as async-first
• std/io: add ReadSeeker, WriteSeeker, ByteScanner, RuneScanner, ReadWriteSeeker, ReaderFrom, MultiReader, LimitedReader, NopCloser
• std/io: rename Stream as ReadWriteCloser
• std/io: remove LimitReader
• std/jule/build: add AssemblyExts, IsValidAssemblyExt
• std/jule/mod: fix unsafe string handling causes dangling memory
• std/net: update as async-first
• std/net: add RawFD to Conn, TCPConn, UDPConn
• std/net: use the system's maximum backlog by default for TCPListener
• std/os: update as async-first
• std/slices: add Grow

API

• fix: —disable-safety may cause compile errors
• __jule_Ptr: fix the memory leak caused by rvalue handling

Legacy Support

This release is almost entirely breaking. Jule's concurrency model has been completely redesigned, and a new runtime model has been introduced. Common operations such as I/O are no longer sync-first and thread-friendly; instead, they are designed to be async-first by default. This means that using std/io and all related packages largely requires running under the async runtime.

In addition, with the new coroutine model, the OS thread has become merely a tool used by the runtime, not for developers. The co keyword creates a coroutine now, not a thread. For this reason, if you have a concurrent program, its behavior may be very different from before.