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945c09b1cc
When we determine that an optional value needs to be unwrapped to make
an expression type check, use notes to provide several different
Fix-It options (with descriptions) rather than always pushing users
toward '!'. Specifically, the errors + Fix-Its now looks like this:
error: value of optional type 'X?' must be unwrapped to a value of
type 'X'
f(x)
^
note: coalesce using '??' to provide a default when the optional
value contains 'nil'
f(x)
^
?? <#default value#>
note: force-unwrap using '!' to abort execution if the optional
value contains 'nil'
f(x)
^
!
Fixes rdar://problem/42081852.
183 lines
5.0 KiB
C++
183 lines
5.0 KiB
C++
//===-- KnownIdentifiers.def - Known identifier metaprogramming -*- 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 macros used for macro-metaprogramming with compiler-known
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// identifiers.
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//
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//===----------------------------------------------------------------------===//
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#ifndef IDENTIFIER_WITH_NAME
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# error Must define IDENTIFIER_WITH_NAME(Name, IdStr) before including this x-macro file
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#endif
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#define IDENTIFIER(name) IDENTIFIER_WITH_NAME(name, #name)
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#define IDENTIFIER_(name) IDENTIFIER_WITH_NAME(name, "_" #name)
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IDENTIFIER(AllCases)
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IDENTIFIER(allCases)
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IDENTIFIER(alloc)
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IDENTIFIER(allocWithZone)
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IDENTIFIER(allZeros)
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IDENTIFIER(Any)
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IDENTIFIER(ArrayLiteralElement)
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IDENTIFIER(atIndexedSubscript)
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IDENTIFIER_(bridgeToObjectiveC)
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IDENTIFIER_WITH_NAME(code_, "_code")
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IDENTIFIER(CodingKeys)
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IDENTIFIER(combine)
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IDENTIFIER(container)
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IDENTIFIER(CoreGraphics)
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IDENTIFIER(CoreMedia)
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IDENTIFIER(CGFloat)
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IDENTIFIER(CoreFoundation)
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IDENTIFIER(CVarArg)
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IDENTIFIER(Darwin)
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IDENTIFIER(dealloc)
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IDENTIFIER(Decodable)
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IDENTIFIER(decode)
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IDENTIFIER(decodeIfPresent)
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IDENTIFIER(Decoder)
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IDENTIFIER(decoder)
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IDENTIFIER(dynamicMember)
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IDENTIFIER(Element)
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IDENTIFIER(Encodable)
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IDENTIFIER(encode)
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IDENTIFIER(encodeIfPresent)
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IDENTIFIER(Encoder)
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IDENTIFIER(encoder)
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IDENTIFIER(error)
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IDENTIFIER(errorDomain)
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IDENTIFIER(forKeyedSubscript)
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IDENTIFIER(Foundation)
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IDENTIFIER(for)
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IDENTIFIER(forKey)
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IDENTIFIER(from)
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IDENTIFIER(fromRaw)
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IDENTIFIER(hash)
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IDENTIFIER(hasher)
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IDENTIFIER(hashValue)
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IDENTIFIER(initialize)
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IDENTIFIER(initStorage)
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IDENTIFIER(initialValue)
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IDENTIFIER(into)
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IDENTIFIER(intValue)
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IDENTIFIER(Key)
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IDENTIFIER(KeyedDecodingContainer)
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IDENTIFIER(KeyedEncodingContainer)
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IDENTIFIER(keyedBy)
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IDENTIFIER(keyPath)
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IDENTIFIER(makeIterator)
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IDENTIFIER(Iterator)
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IDENTIFIER(load)
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IDENTIFIER(next)
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IDENTIFIER_(nsErrorDomain)
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IDENTIFIER(objectAtIndexedSubscript)
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IDENTIFIER(objectForKeyedSubscript)
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IDENTIFIER(ObjectiveC)
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IDENTIFIER_(ObjectiveCType)
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IDENTIFIER(Optional)
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IDENTIFIER_(OptionalNilComparisonType)
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IDENTIFIER(parameter)
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IDENTIFIER(Protocol)
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IDENTIFIER(rawValue)
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IDENTIFIER(RawValue)
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IDENTIFIER(Selector)
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IDENTIFIER(self)
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IDENTIFIER(Self)
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IDENTIFIER(setObject)
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IDENTIFIER(simd)
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IDENTIFIER(storage)
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IDENTIFIER(stringValue)
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IDENTIFIER(super)
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IDENTIFIER(superDecoder)
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IDENTIFIER(superEncoder)
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#if __APPLE__ && !SWIFT_DARWIN_ENABLE_STABLE_ABI_BIT
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// Pre-stable ABI uses un-mangled name for SwiftObject.
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IDENTIFIER(SwiftObject)
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#else
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IDENTIFIER_WITH_NAME(SwiftObject, "_TtCs12_SwiftObject")
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#endif
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IDENTIFIER(to)
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IDENTIFIER(toRaw)
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IDENTIFIER(Type)
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IDENTIFIER(type)
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IDENTIFIER(Value)
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IDENTIFIER(value)
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IDENTIFIER_WITH_NAME(value_, "_value")
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IDENTIFIER(with)
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// Kinds of layout constraints
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IDENTIFIER_WITH_NAME(UnknownLayout, "_UnknownLayout")
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IDENTIFIER_WITH_NAME(TrivialLayout, "_Trivial")
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IDENTIFIER_WITH_NAME(TrivialAtMostLayout, "_TrivialAtMost")
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IDENTIFIER_WITH_NAME(RefCountedObjectLayout, "_RefCountedObject")
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IDENTIFIER_WITH_NAME(NativeRefCountedObjectLayout, "_NativeRefCountedObject")
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IDENTIFIER_WITH_NAME(ClassLayout, "_Class")
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IDENTIFIER_WITH_NAME(NativeClassLayout, "_NativeClass")
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// Operators
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IDENTIFIER_WITH_NAME(MatchOperator, "~=")
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IDENTIFIER_WITH_NAME(EqualsOperator, "==")
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IDENTIFIER_WITH_NAME(derived_enum_equals, "__derived_enum_equals")
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IDENTIFIER_WITH_NAME(derived_struct_equals, "__derived_struct_equals")
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// Precedence groups
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IDENTIFIER(AssignmentPrecedence)
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IDENTIFIER(CastingPrecedence)
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IDENTIFIER(DefaultPrecedence)
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IDENTIFIER(FunctionArrowPrecedence)
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IDENTIFIER(NilCoalescingPrecedence)
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IDENTIFIER(TernaryPrecedence)
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// Builtins and literals
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IDENTIFIER_(MaxBuiltinIntegerType)
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IDENTIFIER(IntegerLiteralType)
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IDENTIFIER(nilLiteral)
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IDENTIFIER(integerLiteral)
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IDENTIFIER_(builtinIntegerLiteral)
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IDENTIFIER_(MaxBuiltinFloatType)
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IDENTIFIER(FloatLiteralType)
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IDENTIFIER(floatLiteral)
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IDENTIFIER_(builtinFloatLiteral)
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IDENTIFIER(BooleanLiteralType)
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IDENTIFIER_(builtinBooleanLiteral)
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IDENTIFIER(booleanLiteral)
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IDENTIFIER(ExtendedGraphemeClusterLiteralType)
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IDENTIFIER_(builtinExtendedGraphemeClusterLiteral)
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IDENTIFIER(extendedGraphemeClusterLiteral)
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IDENTIFIER(UnicodeScalarLiteralType)
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IDENTIFIER_(builtinUnicodeScalarLiteral)
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IDENTIFIER(unicodeScalarLiteral)
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IDENTIFIER(stringLiteral)
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IDENTIFIER_(builtinUTF16StringLiteral)
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IDENTIFIER_(builtinStringLiteral)
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IDENTIFIER_(builtinConstUTF16StringLiteral)
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IDENTIFIER_(builtinConstStringLiteral)
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IDENTIFIER(StringLiteralType)
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IDENTIFIER(stringInterpolation)
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IDENTIFIER(stringInterpolationSegment)
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IDENTIFIER(arrayLiteral)
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IDENTIFIER(dictionaryLiteral)
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IDENTIFIER_(getBuiltinLogicValue)
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IDENTIFIER(className)
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IDENTIFIER_(ErrorType)
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IDENTIFIER(Code)
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IDENTIFIER_(nsError)
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#undef IDENTIFIER
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#undef IDENTIFIER_
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#undef IDENTIFIER_WITH_NAME
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