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https://github.com/luau-lang/luau.git
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59ae47db43
* Type mismatch errors now mention if unification failed in covariant or invariant context, to explain why sometimes derived class can't be converted to base class or why `T` can't be converted into `T?` and so on * Class type indexing is no longer an error in non-strict mode (still an error in strict mode) * Fixed cyclic type packs not being displayed in the type * Added an error when unrelated types are compared with `==`/`~=` * Fixed false positive errors involving sub-type tests an `never` type * Fixed miscompilation of multiple assignment statements (Fixes https://github.com/Roblox/luau/issues/754) * Type inference stability improvements
51 lines
928 B
C++
51 lines
928 B
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/Common.h"
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#include "Luau/Error.h"
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#include <stdexcept>
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#include <exception>
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namespace Luau
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{
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struct RecursionLimitException : public InternalCompilerError
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{
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RecursionLimitException()
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: InternalCompilerError("Internal recursion counter limit exceeded")
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{
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}
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};
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struct RecursionCounter
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{
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RecursionCounter(int* count)
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: count(count)
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{
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++(*count);
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}
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~RecursionCounter()
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{
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LUAU_ASSERT(*count > 0);
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--(*count);
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}
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private:
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int* count;
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};
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struct RecursionLimiter : RecursionCounter
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{
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RecursionLimiter(int* count, int limit)
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: RecursionCounter(count)
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{
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if (limit > 0 && *count > limit)
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{
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throw RecursionLimitException();
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}
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}
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};
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} // namespace Luau
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