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66202dc4ac
## General - Support AstStatDeclareGlobal output as a source string (via @karl-police in #1889) - Luau heap dump correctly reports the size of a string, now including overhead for the string type - Prevent yields from Luau `xpcall` error handling function. ## Analysis - Avoid exponential blowup when normalizing union of normalized free variables. - Fix type pack-related bugs that caused infinite recursion when: - A generic type pack was bound to itself during subtyping. - In type pack flattening, when that same generic type pack was now being bound another generic type pack which contained it. - Properly simplify `any & (*error-type* | string)` to `*error-type* | *error-type* | string` instead of hanging due to creating a huge union type. --- Co-authored-by: Andy Friesen <afriesen@roblox.com> Co-authored-by: Ariel Weiss <aaronweiss@roblox.com> Co-authored-by: Hunter Goldstein <hgoldstein@roblox.com> Co-authored-by: Sora Kanosue <skanosue@roblox.com> Co-authored-by: Vyacheslav Egorov <vegorov@roblox.com> --------- Co-authored-by: Hunter Goldstein <hgoldstein@roblox.com> Co-authored-by: Varun Saini <61795485+vrn-sn@users.noreply.github.com> Co-authored-by: Menarul Alam <malam@roblox.com> Co-authored-by: Aviral Goel <agoel@roblox.com> Co-authored-by: Vighnesh <vvijay@roblox.com> Co-authored-by: Vyacheslav Egorov <vegorov@roblox.com> Co-authored-by: Ariel Weiss <aaronweiss@roblox.com> Co-authored-by: Andy Friesen <afriesen@roblox.com>
70 lines
2 KiB
C++
70 lines
2 KiB
C++
// This file is part of the Luau programming language and is licensed under MIT License; see LICENSE.txt for details
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#include "ConstraintGeneratorFixture.h"
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#include "ScopedFlags.h"
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LUAU_FASTFLAG(LuauSolverV2);
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namespace Luau
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{
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ConstraintGeneratorFixture::ConstraintGeneratorFixture()
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: Fixture()
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, mainModule(new Module)
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, simplifier(newSimplifier(NotNull{&arena}, getBuiltins()))
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, forceTheFlag{FFlag::LuauSolverV2, true}
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{
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getFrontend(); // Force the frontend to exist in the constructor.
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mainModule->name = "MainModule";
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mainModule->humanReadableName = "MainModule";
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BlockedTypePack::nextIndex = 0;
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}
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void ConstraintGeneratorFixture::generateConstraints(const std::string& code)
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{
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AstStatBlock* root = parse(code);
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dfg = std::make_unique<DataFlowGraph>(
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DataFlowGraphBuilder::build(root, NotNull{&mainModule->defArena}, NotNull{&mainModule->keyArena}, NotNull{&ice})
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);
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cg = std::make_unique<ConstraintGenerator>(
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mainModule,
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NotNull{&normalizer},
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NotNull{simplifier.get()},
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NotNull{&typeFunctionRuntime},
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NotNull(&moduleResolver),
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getBuiltins(),
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NotNull(&ice),
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getFrontend().globals.globalScope,
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getFrontend().globals.globalTypeFunctionScope,
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/*prepareModuleScope*/ nullptr,
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&logger,
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NotNull{dfg.get()},
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std::vector<RequireCycle>()
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);
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cg->visitModuleRoot(root);
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rootScope = cg->rootScope;
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constraints = Luau::borrowConstraints(cg->constraints);
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}
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void ConstraintGeneratorFixture::solve(const std::string& code)
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{
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generateConstraints(code);
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ConstraintSolver cs{
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NotNull{&normalizer},
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NotNull{simplifier.get()},
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NotNull{&typeFunctionRuntime},
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NotNull{rootScope},
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constraints,
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NotNull{&cg->scopeToFunction},
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"MainModule",
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NotNull(&moduleResolver),
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{},
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&logger,
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NotNull{dfg.get()},
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{}
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};
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cs.run();
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}
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} // namespace Luau
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