mirror of
https://github.com/luau-lang/luau.git
synced 2024-12-14 22:21:10 +00:00
49b0c59eec
Changes: - Support for time tracing for analysis/compiler (not currently exposed through CLI) - Support for type pack arguments in type aliases (#83) - Basic support for require(path) in luau-analyze - Add a lint warning for table.move with 0 index as part of TableOperation lint - Remove last STL dependency from Luau.VM - Minor VS2022 performance tuning Co-authored-by: Rodactor <rodactor@roblox.com>
73 lines
2.4 KiB
C++
73 lines
2.4 KiB
C++
// This file is part of the Luau programming language and is licensed under MIT License; see LICENSE.txt for details
|
|
#pragma once
|
|
|
|
#include "Luau/FileResolver.h"
|
|
|
|
#include <memory>
|
|
#include <optional>
|
|
#include <string>
|
|
|
|
namespace Luau
|
|
{
|
|
|
|
class AstExpr;
|
|
struct Module;
|
|
|
|
using ModulePtr = std::shared_ptr<Module>;
|
|
|
|
struct ModuleResolver
|
|
{
|
|
virtual ~ModuleResolver() {}
|
|
|
|
/** Compute a ModuleName from an AST fragment. This AST fragment is generally the argument to the require() function.
|
|
*
|
|
* You probably want to implement this with some variation of pathExprToModuleName.
|
|
*
|
|
* @returns The ModuleInfo if the expression is a syntactically legal path.
|
|
* @returns std::nullopt if we are unable to determine whether or not the expression is a valid path. Type inference will
|
|
* silently assume that it could succeed in this case.
|
|
*
|
|
* FIXME: This is clearly not the right behaviour longterm. We'll want to adust this interface to be able to signal
|
|
* a) success,
|
|
* b) Definitive failure (this expression will absolutely cause require() to fail at runtime), and
|
|
* c) uncertainty
|
|
*/
|
|
virtual std::optional<ModuleInfo> resolveModuleInfo(const ModuleName& currentModuleName, const AstExpr& pathExpr) = 0;
|
|
|
|
/** Get a typechecked module from its name.
|
|
*
|
|
* This can return null under two circumstances: the module is unknown at compile time,
|
|
* or there's a cycle, and we are still in the middle of typechecking the module.
|
|
*/
|
|
virtual const ModulePtr getModule(const ModuleName& moduleName) const = 0;
|
|
|
|
/** Is a module known at compile time?
|
|
*
|
|
* This function can be used to distinguish the above two cases.
|
|
*/
|
|
virtual bool moduleExists(const ModuleName& moduleName) const = 0;
|
|
|
|
virtual std::string getHumanReadableModuleName(const ModuleName& moduleName) const = 0;
|
|
};
|
|
|
|
struct NullModuleResolver : ModuleResolver
|
|
{
|
|
std::optional<ModuleInfo> resolveModuleInfo(const ModuleName& currentModuleName, const AstExpr& pathExpr) override
|
|
{
|
|
return std::nullopt;
|
|
}
|
|
const ModulePtr getModule(const ModuleName& moduleName) const override
|
|
{
|
|
return nullptr;
|
|
}
|
|
bool moduleExists(const ModuleName& moduleName) const override
|
|
{
|
|
return false;
|
|
}
|
|
std::string getHumanReadableModuleName(const ModuleName& moduleName) const override
|
|
{
|
|
return moduleName;
|
|
}
|
|
};
|
|
|
|
} // namespace Luau
|