luau/Analysis/include/Luau/Autocomplete.h
vegorov-rbx 76f67e0733
Sync to upstream/release/588 (#992)
Type checker/autocomplete:
* `Luau::autocomplete` no longer performs typechecking internally, make
sure to run `Frontend::check` before performing autocomplete requests
* Autocomplete string suggestions without "" are now only suggested
inside the ""
* Autocomplete suggestions now include `function (anonymous autofilled)`
key with a full suggestion for the function expression (with arguments
included) stored in `AutocompleteEntry::insertText`
* `AutocompleteEntry::indexedWithSelf` is provided for function call
suggestions made with `:`
* Cyclic modules now see each other type exports as `any` to prevent
memory use-after-free (similar to module return type)

Runtime:
* Updated inline/loop unroll cost model to better handle assignments
(Fixes https://github.com/Roblox/luau/issues/978)
* `math.noise` speed was improved by ~30%
* `table.concat` speed was improved by ~5-7%
* `tonumber` and `tostring` now have fastcall paths that execute ~1.5x
and ~2.5x faster respectively (fixes #777)
* Fixed crash in `luaL_typename` when index refers to a non-existing
value
* Fixed potential out of memory scenario when using `string.sub` or
`string.char` in a loop
* Fixed behavior of some fastcall builtins when called without arguments
under -O2 to match original functions
* Support for native code execution in VM is now enabled by default
(note: native code still has to be generated explicitly)
* `Codegen::compile` now accepts `CodeGen_OnlyNativeModules` flag. When
set, only modules that have a `--!native` hot-comment at the top will be
compiled to native code

In our new typechecker:
* Generic type packs are no longer considered to be variadic during
unification
* Timeout and cancellation now works in new solver
* Fixed false positive errors around 'table' and 'function' type
refinements
* Table literals now use covariant unification rules. This is sound
since literal has no type specified and has no aliases
* Fixed issues with blocked types escaping the constraint solver
* Fixed more places where error messages that should've been suppressed
were still reported
* Fixed errors when iterating over a top table type

In our native code generation (jit):
* 'DebugLuauAbortingChecks' flag is now supported on A64
* LOP_NEWCLOSURE has been translated to IR
2023-07-28 08:13:53 -07:00

105 lines
2.6 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/Location.h"
#include "Luau/Type.h"
#include <unordered_map>
#include <string>
#include <memory>
#include <optional>
namespace Luau
{
struct Frontend;
struct SourceModule;
struct Module;
struct TypeChecker;
using ModulePtr = std::shared_ptr<Module>;
enum class AutocompleteContext
{
Unknown,
Expression,
Statement,
Property,
Type,
Keyword,
String,
};
enum class AutocompleteEntryKind
{
Property,
Binding,
Keyword,
String,
Type,
Module,
GeneratedFunction,
};
enum class ParenthesesRecommendation
{
None,
CursorAfter,
CursorInside,
};
enum class TypeCorrectKind
{
None,
Correct,
CorrectFunctionResult,
};
struct AutocompleteEntry
{
AutocompleteEntryKind kind = AutocompleteEntryKind::Property;
// Nullopt if kind is Keyword
std::optional<TypeId> type = std::nullopt;
bool deprecated = false;
// Only meaningful if kind is Property.
bool wrongIndexType = false;
// Set if this suggestion matches the type expected in the context
TypeCorrectKind typeCorrect = TypeCorrectKind::None;
std::optional<const ClassType*> containingClass = std::nullopt;
std::optional<const Property*> prop = std::nullopt;
std::optional<std::string> documentationSymbol = std::nullopt;
Tags tags;
ParenthesesRecommendation parens = ParenthesesRecommendation::None;
std::optional<std::string> insertText;
// Only meaningful if kind is Property.
bool indexedWithSelf = false;
};
using AutocompleteEntryMap = std::unordered_map<std::string, AutocompleteEntry>;
struct AutocompleteResult
{
AutocompleteEntryMap entryMap;
std::vector<AstNode*> ancestry;
AutocompleteContext context = AutocompleteContext::Unknown;
AutocompleteResult() = default;
AutocompleteResult(AutocompleteEntryMap entryMap, std::vector<AstNode*> ancestry, AutocompleteContext context)
: entryMap(std::move(entryMap))
, ancestry(std::move(ancestry))
, context(context)
{
}
};
using ModuleName = std::string;
using StringCompletionCallback =
std::function<std::optional<AutocompleteEntryMap>(std::string tag, std::optional<const ClassType*> ctx, std::optional<std::string> contents)>;
AutocompleteResult autocomplete(Frontend& frontend, const ModuleName& moduleName, Position position, StringCompletionCallback callback);
constexpr char kGeneratedAnonymousFunctionEntryName[] = "function (anonymous autofilled)";
} // namespace Luau