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42a2805f85
* 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
45 lines
1.2 KiB
C++
45 lines
1.2 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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#pragma once
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#include "Luau/IrData.h"
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#include <string>
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#include <vector>
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namespace Luau
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{
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namespace CodeGen
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{
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struct CfgInfo;
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const char* getCmdName(IrCmd cmd);
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const char* getBlockKindName(IrBlockKind kind);
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struct IrToStringContext
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{
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std::string& result;
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std::vector<IrBlock>& blocks;
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std::vector<IrConst>& constants;
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CfgInfo& cfg;
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};
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void toString(IrToStringContext& ctx, const IrInst& inst, uint32_t index);
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void toString(IrToStringContext& ctx, const IrBlock& block, uint32_t index); // Block title
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void toString(IrToStringContext& ctx, IrOp op);
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void toString(std::string& result, IrConst constant);
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void toStringDetailed(IrToStringContext& ctx, const IrInst& inst, uint32_t index, bool includeUseInfo);
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void toStringDetailed(IrToStringContext& ctx, const IrBlock& block, uint32_t index, bool includeUseInfo); // Block title
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std::string toString(IrFunction& function, bool includeUseInfo);
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std::string dump(IrFunction& function);
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std::string toDot(IrFunction& function, bool includeInst);
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std::string dumpDot(IrFunction& function, bool includeInst);
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} // namespace CodeGen
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} // namespace Luau
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