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# General * Internally rename `ClassType` to `ExternType`. In definition files, the syntax to define these types has changed to `declare extern type Foo with prop: type end` * Add `luarequire_registermodule` to Luau.Require * Support yieldable Luau C functions calling other functions * Store return types as `AstTypePack*` on Ast nodes ## New Solver * Improve the logic that determines constraint dispatch ordering * Fix a crash in the type solver that arose when using multi-return functions with `string.format` * Fix https://github.com/luau-lang/luau/issues/1736 * Initial steps toward rethinking function generalization: * Instead of generalizing every type in a function all at once, we will instead generalize individual type variables once their bounds have been fully resolved. This will make it possible to properly interleave type function reduction and generalization. * Magic functions are no longer considered magical in cases where they are not explicitly called by the code. * The most prominent example of this is in `for..in` loops where the function call is part of the desugaring process. * Almost all magic functions work by directly inspecting the AST, so they can't work without an AST fragment anyway. * Further, none of the magic functions we have are usefully used in this way. Co-authored-by: Andy Friesen <afriesen@roblox.com> Co-authored-by: Ariel Weiss <aaronweiss@roblox.com> Co-authored-by: Hunter Goldstein <hgoldstein@roblox.com> Co-authored-by: Sora Kanosue <skanosue@roblox.com> Co-authored-by: Talha Pathan <tpathan@roblox.com> Co-authored-by: Varun Saini <vsaini@roblox.com> Co-authored-by: Vighnesh Vijay <vvijay@roblox.com> Co-authored-by: Vyacheslav Egorov <vegorov@roblox.com>
279 lines
8.1 KiB
C++
279 lines
8.1 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 "Luau/Ast.h"
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#include "Luau/Cst.h"
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#include "Luau/Common.h"
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namespace Luau
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{
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int gCstRttiIndex = 0;
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CstExprConstantNumber::CstExprConstantNumber(const AstArray<char>& value)
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: CstNode(CstClassIndex())
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, value(value)
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{
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}
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CstExprConstantString::CstExprConstantString(AstArray<char> sourceString, QuoteStyle quoteStyle, unsigned int blockDepth)
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: CstNode(CstClassIndex())
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, sourceString(sourceString)
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, quoteStyle(quoteStyle)
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, blockDepth(blockDepth)
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{
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LUAU_ASSERT(blockDepth == 0 || quoteStyle == QuoteStyle::QuotedRaw);
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}
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CstExprCall::CstExprCall(std::optional<Position> openParens, std::optional<Position> closeParens, AstArray<Position> commaPositions)
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: CstNode(CstClassIndex())
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, openParens(openParens)
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, closeParens(closeParens)
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, commaPositions(commaPositions)
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{
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}
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CstExprIndexExpr::CstExprIndexExpr(Position openBracketPosition, Position closeBracketPosition)
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: CstNode(CstClassIndex())
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, openBracketPosition(openBracketPosition)
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, closeBracketPosition(closeBracketPosition)
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{
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}
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CstExprFunction::CstExprFunction()
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: CstNode(CstClassIndex())
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{
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}
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CstExprTable::CstExprTable(const AstArray<Item>& items)
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: CstNode(CstClassIndex())
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, items(items)
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{
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}
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CstExprOp::CstExprOp(Position opPosition)
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: CstNode(CstClassIndex())
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, opPosition(opPosition)
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{
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}
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CstExprTypeAssertion::CstExprTypeAssertion(Position opPosition)
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: CstNode(CstClassIndex())
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, opPosition(opPosition)
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{
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}
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CstExprIfElse::CstExprIfElse(Position thenPosition, Position elsePosition, bool isElseIf)
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: CstNode(CstClassIndex())
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, thenPosition(thenPosition)
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, elsePosition(elsePosition)
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, isElseIf(isElseIf)
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{
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}
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CstExprInterpString::CstExprInterpString(AstArray<AstArray<char>> sourceStrings, AstArray<Position> stringPositions)
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: CstNode(CstClassIndex())
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, sourceStrings(sourceStrings)
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, stringPositions(stringPositions)
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{
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}
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CstStatDo::CstStatDo(Position endPosition)
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: CstNode(CstClassIndex())
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, endPosition(endPosition)
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{
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}
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CstStatRepeat::CstStatRepeat(Position untilPosition)
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: CstNode(CstClassIndex())
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, untilPosition(untilPosition)
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{
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}
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CstStatReturn::CstStatReturn(AstArray<Position> commaPositions)
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: CstNode(CstClassIndex())
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, commaPositions(commaPositions)
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{
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}
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CstStatLocal::CstStatLocal(AstArray<Position> varsCommaPositions, AstArray<Position> valuesCommaPositions)
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: CstNode(CstClassIndex())
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, varsCommaPositions(varsCommaPositions)
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, valuesCommaPositions(valuesCommaPositions)
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{
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}
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CstStatFor::CstStatFor(Position equalsPosition, Position endCommaPosition, std::optional<Position> stepCommaPosition)
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: CstNode(CstClassIndex())
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, equalsPosition(equalsPosition)
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, endCommaPosition(endCommaPosition)
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, stepCommaPosition(stepCommaPosition)
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{
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}
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CstStatForIn::CstStatForIn(AstArray<Position> varsCommaPositions, AstArray<Position> valuesCommaPositions)
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: CstNode(CstClassIndex())
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, varsCommaPositions(varsCommaPositions)
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, valuesCommaPositions(valuesCommaPositions)
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{
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}
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CstStatAssign::CstStatAssign(AstArray<Position> varsCommaPositions, Position equalsPosition, AstArray<Position> valuesCommaPositions)
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: CstNode(CstClassIndex())
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, varsCommaPositions(varsCommaPositions)
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, equalsPosition(equalsPosition)
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, valuesCommaPositions(valuesCommaPositions)
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{
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}
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CstStatCompoundAssign::CstStatCompoundAssign(Position opPosition)
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: CstNode(CstClassIndex())
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, opPosition(opPosition)
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{
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}
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CstStatFunction::CstStatFunction(Position functionKeywordPosition)
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: CstNode(CstClassIndex())
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, functionKeywordPosition(functionKeywordPosition)
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{
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}
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CstStatLocalFunction::CstStatLocalFunction(Position localKeywordPosition, Position functionKeywordPosition)
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: CstNode(CstClassIndex())
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, localKeywordPosition(localKeywordPosition)
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, functionKeywordPosition(functionKeywordPosition)
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{
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}
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CstGenericType::CstGenericType(std::optional<Position> defaultEqualsPosition)
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: CstNode(CstClassIndex())
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, defaultEqualsPosition(defaultEqualsPosition)
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{
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}
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CstGenericTypePack::CstGenericTypePack(Position ellipsisPosition, std::optional<Position> defaultEqualsPosition)
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: CstNode(CstClassIndex())
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, ellipsisPosition(ellipsisPosition)
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, defaultEqualsPosition(defaultEqualsPosition)
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{
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}
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CstStatTypeAlias::CstStatTypeAlias(
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Position typeKeywordPosition,
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Position genericsOpenPosition,
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AstArray<Position> genericsCommaPositions,
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Position genericsClosePosition,
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Position equalsPosition
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)
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: CstNode(CstClassIndex())
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, typeKeywordPosition(typeKeywordPosition)
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, genericsOpenPosition(genericsOpenPosition)
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, genericsCommaPositions(genericsCommaPositions)
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, genericsClosePosition(genericsClosePosition)
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, equalsPosition(equalsPosition)
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{
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}
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CstStatTypeFunction::CstStatTypeFunction(Position typeKeywordPosition, Position functionKeywordPosition)
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: CstNode(CstClassIndex())
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, typeKeywordPosition(typeKeywordPosition)
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, functionKeywordPosition(functionKeywordPosition)
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{
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}
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CstTypeReference::CstTypeReference(
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std::optional<Position> prefixPointPosition,
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Position openParametersPosition,
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AstArray<Position> parametersCommaPositions,
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Position closeParametersPosition
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)
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: CstNode(CstClassIndex())
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, prefixPointPosition(prefixPointPosition)
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, openParametersPosition(openParametersPosition)
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, parametersCommaPositions(parametersCommaPositions)
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, closeParametersPosition(closeParametersPosition)
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{
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}
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CstTypeTable::CstTypeTable(AstArray<Item> items, bool isArray)
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: CstNode(CstClassIndex())
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, items(items)
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, isArray(isArray)
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{
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}
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CstTypeFunction::CstTypeFunction(
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Position openGenericsPosition,
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AstArray<Position> genericsCommaPositions,
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Position closeGenericsPosition,
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Position openArgsPosition,
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AstArray<std::optional<Position>> argumentNameColonPositions,
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AstArray<Position> argumentsCommaPositions,
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Position closeArgsPosition,
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Position returnArrowPosition
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)
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: CstNode(CstClassIndex())
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, openGenericsPosition(openGenericsPosition)
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, genericsCommaPositions(genericsCommaPositions)
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, closeGenericsPosition(closeGenericsPosition)
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, openArgsPosition(openArgsPosition)
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, argumentNameColonPositions(argumentNameColonPositions)
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, argumentsCommaPositions(argumentsCommaPositions)
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, closeArgsPosition(closeArgsPosition)
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, returnArrowPosition(returnArrowPosition)
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{
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}
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CstTypeTypeof::CstTypeTypeof(Position openPosition, Position closePosition)
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: CstNode(CstClassIndex())
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, openPosition(openPosition)
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, closePosition(closePosition)
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{
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}
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CstTypeUnion::CstTypeUnion(std::optional<Position> leadingPosition, AstArray<Position> separatorPositions)
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: CstNode(CstClassIndex())
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, leadingPosition(leadingPosition)
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, separatorPositions(separatorPositions)
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{
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}
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CstTypeIntersection::CstTypeIntersection(std::optional<Position> leadingPosition, AstArray<Position> separatorPositions)
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: CstNode(CstClassIndex())
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, leadingPosition(leadingPosition)
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, separatorPositions(separatorPositions)
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{
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}
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CstTypeSingletonString::CstTypeSingletonString(AstArray<char> sourceString, CstExprConstantString::QuoteStyle quoteStyle, unsigned int blockDepth)
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: CstNode(CstClassIndex())
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, sourceString(sourceString)
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, quoteStyle(quoteStyle)
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, blockDepth(blockDepth)
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{
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LUAU_ASSERT(quoteStyle != CstExprConstantString::QuotedInterp);
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}
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CstTypePackExplicit::CstTypePackExplicit()
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: CstNode(CstClassIndex())
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, hasParentheses(false)
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, openParenthesesPosition(Position{0, 0})
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, closeParenthesesPosition(Position{0, 0})
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, commaPositions({})
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{
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}
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CstTypePackExplicit::CstTypePackExplicit(Position openParenthesesPosition, Position closeParenthesesPosition, AstArray<Position> commaPositions)
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: CstNode(CstClassIndex())
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, hasParentheses(true)
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, openParenthesesPosition(openParenthesesPosition)
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, closeParenthesesPosition(closeParenthesesPosition)
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, commaPositions(commaPositions)
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{
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}
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CstTypePackGeneric::CstTypePackGeneric(Position ellipsisPosition)
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: CstNode(CstClassIndex())
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, ellipsisPosition(ellipsisPosition)
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{
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}
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} // namespace Luau
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