luau/Analysis/src/Unifiable.cpp

// This file is part of the Luau programming language and is licensed under MIT License; see LICENSE.txt for details
#include "Luau/Unifiable.h"

namespace Luau
{
namespace Unifiable
{

static int nextIndex = 0;

int freshIndex()
{
    return ++nextIndex;
}

Error::Error()
    : index(++nextIndex)
{
}

int Error::nextIndex = 0;

} // namespace Unifiable
} // namespace Luau
Sync to upstream/release/501 (#20) Co-authored-by: Rodactor <rodactor@roblox.com> 2021-10-29 13:25:12 -07:00			`// This file is part of the Luau programming language and is licensed under MIT License; see LICENSE.txt for details`
			`#include "Luau/Unifiable.h"`

			`namespace Luau`
			`{`
			`namespace Unifiable`
			`{`

Sync to upstream/release/548 (#699) - Fix rare type checking bugs with invalid generic types escaping the module scope - Fix type checking of variadic type packs in certain cases - Implement type normalization, which resolves a large set of various issues with unions/intersections in type checker - Improve parse errors for trailing commas in function calls and type lists - Reduce profiling skew when using --profile with very high frequencies - Improve performance of `lua_getinfo` (`debug.info`, `debug.traceback` and profiling overhead are now 20% faster/smaller) - Improve performance of polymorphic comparisons (1-2% lift on some benchmarks) - Improve performance of closure creation (1-2% lift on some benchmarks) - Improve string comparison performance (4% lift on string sorting) 2022-10-06 17:23:29 -07:00			`static int nextIndex = 0;`

Sync to upstream/release/568 (#865) * A small subset of control-flow refinements have been added to recognize type options that are unreachable after a conditional/unconditional code block. (Fixes https://github.com/Roblox/luau/issues/356). Some examples: ```lua local function f(x: string?) if not x then return end -- x is 'string' here end ``` Throwing calls like `error` or `assert(false)` instead of 'return' are also recognized. Existing complex refinements like type/typeof and tagged union checks are expected to work, among others. To enable this feature, `LuauTinyControlFlowAnalysis` exclusion has to be removed from `ExperimentalFlags.h`. If will become enabled unconditionally in the near future. * Linter has been integrated into the typechecker analysis so that type-aware lint warnings can work in any mode `Frontend::lint` methods were deprecated, `Frontend::check` has to be used instead with `runLintChecks` option set. Resulting lint warning are located inside `CheckResult`. * Fixed large performance drop and increased memory consumption when array is filled at an offset (Fixes https://github.com/Roblox/luau/issues/590) * Part of [Type error suppression RFC](https://github.com/Roblox/luau/blob/master/rfcs/type-error-suppression.md) was implemented making subtyping checks with `any` type transitive. --- In our work on the new type-solver: * `--!nocheck` mode no longer reports type errors * New solver will not be used for `--!nonstrict` modules until all issues with strict mode typechecking are fixed * Added control-flow aware type refinements mentioned earlier In native code generation: * `LOP_NAMECALL` has been translated to IR * `type` and `typeof` builtin fastcalls have been translated to IR/assembly * Additional steps were taken towards arm64 support 2023-03-17 21:20:37 +02:00			`int freshIndex()`
			`{`
			`return ++nextIndex;`
			`}`
Sync to upstream/release/569 (#878) All of our changes this week have been focused on the new type solver and the JIT. As we march toward feature parity with the old solver, we've tightened up a bunch of lingering issues with overload resolution, unsealed tables, and type normalization. We've also fixed a bunch of crashes and assertion failures in the new solver. On the JIT front, we've started work on an A64 backend, improved the IR analysis in a bunch of cases, and implemented assembly generation for the builtin functions `type()` and `typeof()`. --------- Co-authored-by: Arseny Kapoulkine <arseny.kapoulkine@gmail.com> Co-authored-by: Vyacheslav Egorov <vegorov@roblox.com> 2023-03-24 11:03:04 -07:00
Sync to upstream/release/501 (#20) Co-authored-by: Rodactor <rodactor@roblox.com> 2021-10-29 13:25:12 -07:00			`Error::Error()`
			`: index(++nextIndex)`
			`{`
			`}`

			`int Error::nextIndex = 0;`

			`} // namespace Unifiable`
			`} // namespace Luau`