tort - Tiny Object RunTime
Inspired by Ian Piumarta's idst, maru and other small runtimes.
Core is approx. 5000 lines of C.
Supports:
- Primitive object types.
- String.
- Symbol.
- Method.
- Method table.
- Tagged integer.
- Vector.
- Pair.
- Map.
- IO with FILE* and finalization.
- Dynamic message dispatch.
- ~25,000,000 send/sec on OS X 64-bit using a global method cache.
- global method cache monitors for invalidations due to:
- New method definitons using symbol version counters.
- Changes in lookup() meta-send protocol method.
- Changes in method table delegation.
- Meta-send protocol:
- Decomposed into lookup(message, receiver, ...), apply(message, receiver, ...).
- Fully recursive lookup() delegation.
- Message objects allocated on C stack.
- Supports tail recursion.
- Supports non-symbol message selectors.
- Supports method aliasing.
- Anonymous symbols for lexically scoped methods.
- Low-bit tag size and method table mapping is configurable at compile-time.
- Support for locatives (safe pointers).
- GC Support:
- NO GC (malloc-only).
- BDW GC library.
- SMAL GC library (PROTOTYPE).
- Dynamic library loading with automatic initialization, method installation.
- Example Extension Library.
- Lexical blocks in C using GCC nested functions.
- Fibers (PRELIMINARY).
- Catch/throw.
- Object graphing using graphviz/dot.
- LISP Extension Library.
- Under 2400 lines.
- Lisp reader.
- Lisp writer.
- Lexical evaluator.
- Simple macro support.
- Call-in and call-out to tort primitives.
- Lambdas can be used as object methods.
- Lambdas can be used as object blocks.
- Methods can be called using ('symbol rcvr . args) syntax.
- Basic Scheme-like semantics boot-strapped from objects and lisp.
- Basic structures based on vectors.
- PRELIMINARY x86-64 compiler written in Scheme superset.
make bootstrap make
lisp/bin/tlisp - simple Lisp interpreter written as object.
lisp/bin/tlisp compiler/t/compiler_test_1.scm