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713ee2ff8b
# What's Changed?
We've been hard at work fixing bugs in the new type solver and getting
it ready to go!
## Native Codegen
* Specialized Luau Codegen instruction for fetching an import.
As a reminder, an import is an expression like `global.thing` and covers
stuff like libraries without fastcalls `coroutine.resume`) and atomic
extern libraries.
## New Type Solver
* Fix an issue that prevented eager generalization from working properly
with OO styled code.
* Avoid copying uninitialized memory in Luau attribute parsing
* Improve type inference of unsealed tables.
* This fixes https://github.com/luau-lang/luau/issues/1838
* and https://github.com/luau-lang/luau/issues/1859
* Infer potential singleton string keys in autocomplete when the
expected index type is a union type.
* Avoid creating cyclic types when reducing types of the form `t1 where
t1 = refine<T, t1, Y>`
* The type cloner now does the same thing for the new and old solvers.
* Properly infer polarity (aka variance) for divergent table properties.
(ie tables whose read type and write type are not the same)
* Crash fixes.
---------
Co-authored-by: Hunter Goldstein <hgoldstein@roblox.com>
Co-authored-by: Varun Saini <61795485+vrn-sn@users.noreply.github.com>
Co-authored-by: Alexander Youngblood <ayoungblood@roblox.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>
84 lines
2.2 KiB
C++
84 lines
2.2 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 <optional>
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#include "Luau/Common.h"
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#include "Luau/Ast.h"
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#include "Luau/AstJsonEncoder.h"
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#include "Luau/Parser.h"
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#include "Luau/ParseOptions.h"
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#include "Luau/ToString.h"
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#include "Luau/FileUtils.h"
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static void displayHelp(const char* argv0)
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{
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printf("Usage: %s [file]\n", argv0);
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}
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static int assertionHandler(const char* expr, const char* file, int line, const char* function)
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{
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printf("%s(%d): ASSERTION FAILED: %s\n", file, line, expr);
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return 1;
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}
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int main(int argc, char** argv)
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{
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Luau::assertHandler() = assertionHandler;
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for (Luau::FValue<bool>* flag = Luau::FValue<bool>::list; flag; flag = flag->next)
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if (strncmp(flag->name, "Luau", 4) == 0)
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flag->value = true;
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if (argc >= 2 && strcmp(argv[1], "--help") == 0)
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{
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displayHelp(argv[0]);
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return 0;
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}
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else if (argc < 2)
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{
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displayHelp(argv[0]);
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return 1;
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}
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const char* name = argv[1];
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std::optional<std::string> maybeSource = std::nullopt;
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if (strcmp(name, "-") == 0)
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{
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maybeSource = readStdin();
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}
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else
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{
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maybeSource = readFile(name);
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}
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if (!maybeSource)
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{
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fprintf(stderr, "Couldn't read source %s\n", name);
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return 1;
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}
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std::string source = *maybeSource;
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Luau::Allocator allocator;
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Luau::AstNameTable names(allocator);
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Luau::ParseOptions options;
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options.captureComments = true;
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options.allowDeclarationSyntax = true;
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Luau::ParseResult parseResult = Luau::Parser::parse(source.data(), source.size(), names, allocator, std::move(options));
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if (parseResult.errors.size() > 0)
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{
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fprintf(stderr, "Parse errors were encountered:\n");
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for (const Luau::ParseError& error : parseResult.errors)
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{
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fprintf(stderr, " %s - %s\n", toString(error.getLocation()).c_str(), error.getMessage().c_str());
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}
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fprintf(stderr, "\n");
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}
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printf("%s", Luau::toJson(parseResult.root, parseResult.commentLocations).c_str());
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return parseResult.errors.size() > 0 ? 1 : 0;
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}
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