luau/tests/ConstraintGraphBuilderFixture.cpp
vegorov-rbx 4b267aa5c5
Sync to upstream/release/574 (#910)
* Added a limit on how many instructions the Compiler can safely produce
(reported by @TheGreatSageEqualToHeaven)

C++ API Changes:
* With work started on read-only and write-only properties,
`Property::type` member variable has been replaced with `TypeId type()`
and `setType(TypeId)` functions.
* New `LazyType` unwrap callback now has a `void` return type, all
that's required from the callback is to write into `unwrapped` field.

In our work on the new type solver, the following issues were fixed:

* Work has started to support https://github.com/Roblox/luau/pull/77 and
https://github.com/Roblox/luau/pull/79
* Refinements are no longer applied on l-values, removing some
false-positive errors
* Improved overload resolution against expected result type
* `Frontend::prepareModuleScope` now works in the new solver
* Cofinite strings are now comparable

And these are the changes in native code generation (JIT):

* Fixed MIN_NUM and MAX_NUM constant fold when one of the arguments is
NaN
* Added constant folding for number conversions and bit operations
* Value spilling and rematerialization is now supported on arm64
* Improved FASTCALL2K IR generation to support second argument constant
* Added value numbering and load/store propagation optimizations
* Added STORE_VECTOR on arm64, completing the IR lowering on this target
2023-04-28 12:55:13 -07:00

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C++

// This file is part of the Luau programming language and is licensed under MIT License; see LICENSE.txt for details
#include "ConstraintGraphBuilderFixture.h"
#include "Luau/TypeReduction.h"
namespace Luau
{
ConstraintGraphBuilderFixture::ConstraintGraphBuilderFixture()
: Fixture()
, mainModule(new Module)
, forceTheFlag{"DebugLuauDeferredConstraintResolution", true}
{
mainModule->name = "MainModule";
mainModule->humanReadableName = "MainModule";
mainModule->reduction = std::make_unique<TypeReduction>(NotNull{&mainModule->internalTypes}, builtinTypes, NotNull{&ice});
BlockedType::DEPRECATED_nextIndex = 0;
BlockedTypePack::nextIndex = 0;
}
void ConstraintGraphBuilderFixture::generateConstraints(const std::string& code)
{
AstStatBlock* root = parse(code);
dfg = std::make_unique<DataFlowGraph>(DataFlowGraphBuilder::build(root, NotNull{&ice}));
cgb = std::make_unique<ConstraintGraphBuilder>(mainModule, &arena, NotNull(&moduleResolver), builtinTypes, NotNull(&ice),
frontend.globals.globalScope, /*prepareModuleScope*/ nullptr, &logger, NotNull{dfg.get()});
cgb->visit(root);
rootScope = cgb->rootScope;
constraints = Luau::borrowConstraints(cgb->constraints);
}
void ConstraintGraphBuilderFixture::solve(const std::string& code)
{
generateConstraints(code);
ConstraintSolver cs{NotNull{&normalizer}, NotNull{rootScope}, constraints, "MainModule", NotNull(&moduleResolver), {}, &logger};
cs.run();
}
} // namespace Luau