Single ownership, move semantics, and a new memory layout - [merged] - Githubissues

inko-lang / inko

A language for building concurrent software with confidence

http://inko-lang.org/

Mozilla Public License 2.0

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Single ownership, move semantics, and a new memory layout - [merged] #483

Closed yorickpeterse closed 1 year ago

yorickpeterse commented 3 years ago

Merges single-ownership -> master

This MR drastically changes the way Inko works, how memory is managed, the memory layout, etc. It's too much to cover in this MR, instead I'll cover it in the release notes. But in short: Inko will use a form of single ownership like Rust, but a more flexible version of it. For concurrency we're borrowing some ideas from Pony, but again in a more flexible/accessible manner.

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yorickpeterse commented 3 years ago

TODO: update the following files for the new syntax/semantics:

[x] runtime/src/std/bootstrap.inko
[x] runtime/src/std/array.inko
[x] runtime/src/std/operators.inko
[ ] runtime/src/std/integer/extensions.inko
[ ] runtime/src/std/clone.inko
[ ] runtime/src/std/env.inko
[ ] runtime/src/std/test.inko
[x] runtime/src/std/byte_array.inko
[ ] runtime/src/std/compiler/diagnostics.inko
[ ] runtime/src/std/compiler/token.inko
[ ] runtime/src/std/compiler/types.inko
[ ] runtime/src/std/compiler/module_name.inko
[ ] runtime/src/std/compiler/parser.inko
[ ] runtime/src/std/compiler/type_checker.inko
[ ] runtime/src/std/compiler/ast/operators.inko
[ ] runtime/src/std/compiler/ast/control_flow.inko
[ ] runtime/src/std/compiler/ast/imports.inko
[ ] runtime/src/std/compiler/ast/objects.inko
[ ] runtime/src/std/compiler/ast/types.inko
[ ] runtime/src/std/compiler/ast/variables.inko
[ ] runtime/src/std/compiler/ast/send.inko
[ ] runtime/src/std/compiler/ast/pattern_matching.inko
[ ] runtime/src/std/compiler/ast/literals.inko
[ ] runtime/src/std/compiler/ast/comments.inko
[ ] runtime/src/std/compiler/ast/blocks.inko
[ ] runtime/src/std/compiler/ast/body.inko
[ ] runtime/src/std/compiler/ast/node.inko
[ ] runtime/src/std/compiler/config.inko
[ ] runtime/src/std/compiler/source_location.inko
[ ] runtime/src/std/compiler/variable_scope.inko
[ ] runtime/src/std/compiler/symbol_table.inko
[ ] runtime/src/std/compiler/module_parser.inko
[ ] runtime/src/std/compiler/lexer.inko
[ ] runtime/src/std/compiler/prelude.inko
[ ] runtime/src/std/compiler/desugar.inko
[ ] runtime/src/std/error.inko
[ ] runtime/src/std/init.inko
[ ] runtime/src/std/io.inko
[ ] runtime/src/std/map.inko
[ ] runtime/src/std/hash.inko
[ ] runtime/src/std/index.inko
[ ] runtime/src/std/test/test.inko
[ ] runtime/src/std/ffi.inko
[ ] runtime/src/std/module.inko
[ ] runtime/src/std/string/extensions.inko
[ ] runtime/src/std/os.inko
[ ] runtime/src/std/length.inko
[ ] runtime/src/std/iterator.inko
[ ] runtime/src/std/vm.inko
[ ] runtime/src/std/array/extensions.inko
[ ] runtime/src/std/float.inko
[ ] runtime/src/std/time/bits.inko
[ ] runtime/src/std/mirror.inko
[ ] runtime/src/std/loop.inko
[ ] runtime/src/std/format.inko
[ ] runtime/src/std/string_buffer.inko
[ ] runtime/src/std/nil.inko
[x] runtime/src/std/ansi.inko
[ ] runtime/src/std/option.inko
[ ] runtime/src/std/float/extensions.inko
[ ] runtime/src/std/conversion.inko
[ ] runtime/src/std/range.inko
[ ] runtime/src/std/set.inko
[ ] runtime/src/std/time.inko
[ ] runtime/src/std/numeric.inko
[ ] runtime/src/std/integer.inko
[ ] runtime/src/std/net/socket.inko
[ ] runtime/src/std/net/ip.inko
[ ] runtime/src/std/net/unix.inko
[ ] runtime/src/std/net/bits.inko
[ ] runtime/src/std/process.inko
[ ] runtime/src/std/string.inko
[ ] runtime/src/std/pair.inko
[ ] runtime/src/std/debug.inko
[ ] runtime/src/std/boolean.inko
[ ] runtime/src/std/fs/file.inko
[ ] runtime/src/std/fs/path.inko
[ ] runtime/src/std/fs/path/bits.inko
[ ] runtime/src/std/fs/dir.inko
[ ] runtime/src/std/block.inko
[ ] runtime/src/std/stdio/stdout.inko
[ ] runtime/src/std/stdio/stdin.inko
[ ] runtime/src/std/stdio/stderr.inko
[ ] runtime/src/std/random.inko
[ ] runtime/src/std/successor.inko

General TODO:

[ ] Remove the Object trait as it no longer serves a purpose
[ ] Remove Boolean.true? and Boolean.false?
[ ] Define Truthy in std::boolean, which provides the truthy? method. if/while will use this for non boolean values
[ ] Replace True with true, False with false and Nil with nil
[ ] Rename NilType to Nil
[ ] Replace !(...) with [...]
[ ] We need a way of specifying the class kind/ID for built-in classes
[ ] Implement truthy? for String, Array, Map, Set and other collections; returning false if they are empty

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