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81 lines
3.2 KiB
C++
81 lines
3.2 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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#pragma once
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#include "Luau/Common.h"
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#include "Luau/TypeVar.h"
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#include <unordered_map>
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#include <optional>
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#include <memory>
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#include <string>
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LUAU_FASTINT(LuauTableTypeMaximumStringifierLength)
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LUAU_FASTINT(LuauTypeMaximumStringifierLength)
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namespace Luau
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{
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struct ToStringNameMap
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{
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std::unordered_map<TypeId, std::string> typeVars;
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std::unordered_map<TypePackId, std::string> typePacks;
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};
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struct ToStringOptions
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{
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bool exhaustive = false; // If true, we produce complete output rather than comprehensible output
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bool useLineBreaks = false; // If true, we insert new lines to separate long results such as table entries/metatable.
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bool functionTypeArguments = false; // If true, output function type argument names when they are available
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bool hideTableKind = false; // If true, all tables will be surrounded with plain '{}'
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bool hideNamedFunctionTypeParameters = false; // If true, type parameters of functions will be hidden at top-level.
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bool indent = false;
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size_t maxTableLength = size_t(FInt::LuauTableTypeMaximumStringifierLength); // Only applied to TableTypeVars
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size_t maxTypeLength = size_t(FInt::LuauTypeMaximumStringifierLength);
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std::optional<ToStringNameMap> nameMap;
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std::shared_ptr<Scope> scope; // If present, module names will be added and types that are not available in scope will be marked as 'invalid'
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std::vector<std::string> namedFunctionOverrideArgNames; // If present, named function argument names will be overridden
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};
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struct ToStringResult
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{
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std::string name;
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ToStringNameMap nameMap;
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bool invalid = false;
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bool error = false;
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bool cycle = false;
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bool truncated = false;
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};
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ToStringResult toStringDetailed(TypeId ty, const ToStringOptions& opts = {});
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ToStringResult toStringDetailed(TypePackId ty, const ToStringOptions& opts = {});
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std::string toString(TypeId ty, const ToStringOptions& opts);
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std::string toString(TypePackId ty, const ToStringOptions& opts);
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// These are offered as overloads rather than a default parameter so that they can be easily invoked from within the MSVC debugger.
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// You can use them in watch expressions!
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inline std::string toString(TypeId ty)
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{
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return toString(ty, ToStringOptions{});
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}
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inline std::string toString(TypePackId ty)
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{
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return toString(ty, ToStringOptions{});
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}
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std::string toString(const TypeVar& tv, const ToStringOptions& opts = {});
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std::string toString(const TypePackVar& tp, const ToStringOptions& opts = {});
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std::string toStringNamedFunction(const std::string& funcName, const FunctionTypeVar& ftv, const ToStringOptions& opts = {});
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// It could be useful to see the text representation of a type during a debugging session instead of exploring the content of the class
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// These functions will dump the type to stdout and can be evaluated in Watch/Immediate windows or as gdb/lldb expression
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std::string dump(TypeId ty);
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std::string dump(TypePackId ty);
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std::string dump(const std::shared_ptr<Scope>& scope, const char* name);
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std::string generateName(size_t n);
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} // namespace Luau
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