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//===--- ExprContextAnalysis.h - Expession context analysis ---------------===//
//
// This source file is part of the Swift.org open source project
//
// Copyright (c) 2019 Apple Inc. and the Swift project authors
// Licensed under Apache License v2.0 with Runtime Library Exception
//
// See https://swift.org/LICENSE.txt for license information
// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
//
//===----------------------------------------------------------------------===//
#ifndef SWIFT_IDE_EXPRCONTEXTANALYSIS_H
#define SWIFT_IDE_EXPRCONTEXTANALYSIS_H
#include "swift/AST/Type.h"
#include "swift/AST/TypeCheckRequests.h"
#include "swift/AST/Types.h"
#include "swift/Basic/LLVM.h"
#include "swift/Basic/SourceLoc.h"
#include "swift/IDE/PossibleParamInfo.h"
namespace swift {
class DeclContext;
class Expr;
class ValueDecl;
namespace ide {
enum class SemanticContextKind : uint8_t;
/// Type check parent contexts of the given decl context, and the body of the
/// given context until \c Loc if the context is a function body.
void typeCheckContextAt(TypeCheckASTNodeAtLocContext TypeCheckCtx,
SourceLoc Loc);
/// From \p DC, find and returns the outer most expression which source range is
/// exact the same as \p TargetRange. Returns \c nullptr if not found.
Expr *findParsedExpr(const DeclContext *DC, SourceRange TargetRange);
/// Collects possible expected return types of the given decl context.
/// \p DC should be an \c AbstractFunctionDecl or an \c AbstractClosureExpr.
void collectPossibleReturnTypesFromContext(DeclContext *DC,
SmallVectorImpl<Type> &candidates);
struct FunctionTypeAndDecl {
AnyFunctionType *Type;
ValueDecl *Decl;
std::optional<SemanticContextKind> SemanticContext;
FunctionTypeAndDecl(AnyFunctionType *Type, ValueDecl *Decl)
: Type(Type), Decl(Decl) {}
FunctionTypeAndDecl(AnyFunctionType *Type, ValueDecl *Decl,
SemanticContextKind SemanticContext)
: Type(Type), Decl(Decl), SemanticContext(SemanticContext) {}
};
} // namespace ide
} // namespace swift
#endif // SWIFT_IDE_EXPRCONTEXTANALYSIS_H
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