luau/Analysis/include/Luau/AstQuery.h

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// This file is part of the Luau programming language and is licensed under MIT License; see LICENSE.txt for details
#pragma once
#include "Luau/Ast.h"
#include "Luau/Documentation.h"
#include <memory>
namespace Luau
{
struct Binding;
struct SourceModule;
struct Module;
struct TypeVar;
using TypeId = const TypeVar*;
using ScopePtr = std::shared_ptr<struct Scope>;
struct ExprOrLocal
{
AstExpr* getExpr()
{
return expr;
}
AstLocal* getLocal()
{
return local;
}
void setExpr(AstExpr* newExpr)
{
expr = newExpr;
local = nullptr;
}
void setLocal(AstLocal* newLocal)
{
local = newLocal;
expr = nullptr;
}
std::optional<Location> getLocation()
{
return expr ? expr->location : (local ? local->location : std::optional<Location>{});
}
std::optional<AstName> getName()
{
if (expr)
{
if (AstName name = getIdentifier(expr); name.value)
{
return name;
}
}
else if (local)
{
return local->name;
}
return std::nullopt;
}
private:
AstExpr* expr = nullptr;
AstLocal* local = nullptr;
};
std::vector<AstNode*> findAstAncestryOfPosition(const SourceModule& source, Position pos);
AstNode* findNodeAtPosition(const SourceModule& source, Position pos);
AstExpr* findExprAtPosition(const SourceModule& source, Position pos);
ScopePtr findScopeAtPosition(const Module& module, Position pos);
std::optional<Binding> findBindingAtPosition(const Module& module, const SourceModule& source, Position pos);
ExprOrLocal findExprOrLocalAtPosition(const SourceModule& source, Position pos);
std::optional<TypeId> findTypeAtPosition(const Module& module, const SourceModule& sourceModule, Position pos);
std::optional<TypeId> findExpectedTypeAtPosition(const Module& module, const SourceModule& sourceModule, Position pos);
std::optional<DocumentationSymbol> getDocumentationSymbolAtPosition(const SourceModule& source, const Module& module, Position position);
} // namespace Luau