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109 lines
3.6 KiB
C++
109 lines
3.6 KiB
C++
//===--- LookupKinds.h - Swift name-lookup enums ----------------*- C++ -*-===//
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//
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// This source file is part of the Swift.org open source project
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//
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// Copyright (c) 2014 - 2017 Apple Inc. and the Swift project authors
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// Licensed under Apache License v2.0 with Runtime Library Exception
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//
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// See https://swift.org/LICENSE.txt for license information
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// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
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//
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//===----------------------------------------------------------------------===//
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//
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// This file defines enums relating to name lookup.
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//
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//===----------------------------------------------------------------------===//
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#ifndef SWIFT_LOOKUPKINDS_H
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#define SWIFT_LOOKUPKINDS_H
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namespace swift {
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/// NLKind - This is a specifier for the kind of name lookup being performed
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/// by various query methods.
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enum class NLKind {
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UnqualifiedLookup,
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QualifiedLookup
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};
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/// Constants used to customize name lookup.
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enum NLOptions : unsigned {
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/// Consider declarations within protocols to which the context type conforms.
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NL_ProtocolMembers = 0x02,
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/// Remove non-visible declarations from the set of results.
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NL_RemoveNonVisible = 0x04,
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/// Remove overridden declarations from the set of results.
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NL_RemoveOverridden = 0x08,
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/// Don't check access when doing lookup into a type.
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///
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/// This option is not valid when performing lookup into a module.
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NL_IgnoreAccessControl = 0x10,
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/// This lookup is known to be a non-cascading dependency, i.e. one that does
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/// not affect downstream files.
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///
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/// \see NL_KnownDependencyMask
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NL_KnownNonCascadingDependency = 0x20,
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/// This lookup is known to be a cascading dependency, i.e. one that can
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/// affect downstream files.
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///
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/// \see NL_KnownDependencyMask
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NL_KnownCascadingDependency = 0x40,
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/// This lookup should only return type declarations.
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NL_OnlyTypes = 0x80,
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/// Include synonyms declared with @_implements()
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NL_IncludeAttributeImplements = 0x100,
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/// This lookup is known to not add any additional dependencies to the
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/// primary source file.
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///
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/// \see NL_KnownDependencyMask
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NL_KnownNoDependency =
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NL_KnownNonCascadingDependency|NL_KnownCascadingDependency,
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/// A mask of all options controlling how a lookup should be recorded as a
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/// dependency.
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///
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/// This offers three possible options: NL_KnownNonCascadingDependency,
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/// NL_KnownCascadingDependency, NL_KnownNoDependency, as well as a default
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/// "unspecified" value (0). If the dependency kind is unspecified, the
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/// lookup function will attempt to infer whether it is a cascading or
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/// non-cascading dependency from the decl context.
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NL_KnownDependencyMask = NL_KnownNoDependency,
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/// The default set of options used for qualified name lookup.
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///
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/// FIXME: Eventually, add NL_ProtocolMembers to this, once all of the
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/// callers can handle it.
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NL_QualifiedDefault = NL_RemoveNonVisible | NL_RemoveOverridden,
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/// The default set of options used for unqualified name lookup.
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NL_UnqualifiedDefault = NL_RemoveNonVisible | NL_RemoveOverridden
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};
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static inline NLOptions operator|(NLOptions lhs, NLOptions rhs) {
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return NLOptions(unsigned(lhs) | unsigned(rhs));
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}
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static inline NLOptions &operator|=(NLOptions &lhs, NLOptions rhs) {
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return (lhs = lhs | rhs);
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}
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static inline NLOptions operator&(NLOptions lhs, NLOptions rhs) {
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return NLOptions(unsigned(lhs) & unsigned(rhs));
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}
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static inline NLOptions &operator&=(NLOptions &lhs, NLOptions rhs) {
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return (lhs = lhs & rhs);
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}
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static inline NLOptions operator~(NLOptions value) {
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return NLOptions(~(unsigned)value);
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}
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} // end namespace swift
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#endif
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