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| 1 | +//===----------------------------------------------------------------------===// |
| 2 | +// |
| 3 | +// This source file is part of the Swift.org open source project |
| 4 | +// |
| 5 | +// Copyright (c) 2014 - 2023 Apple Inc. and the Swift project authors |
| 6 | +// Licensed under Apache License v2.0 with Runtime Library Exception |
| 7 | +// |
| 8 | +// See https://swift.org/LICENSE.txt for license information |
| 9 | +// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors |
| 10 | +// |
| 11 | +//===----------------------------------------------------------------------===// |
| 12 | + |
| 13 | +import SwiftSyntax |
| 14 | +import SwiftSyntaxBuilder |
| 15 | +import SyntaxSupport |
| 16 | +import Utils |
| 17 | + |
| 18 | +let parserTokenSpecSetFile = SourceFileSyntax(leadingTrivia: copyrightHeader) { |
| 19 | + DeclSyntax("@_spi(RawSyntax) import SwiftSyntax") |
| 20 | + |
| 21 | + for layoutNode in SYNTAX_NODES.compactMap(\.layoutNode) { |
| 22 | + for child in layoutNode.children { |
| 23 | + if case let .token(choices, _, _) = child.kind, choices.count > 1 { |
| 24 | + try! ExtensionDeclSyntax("extension \(raw: layoutNode.kind.syntaxType)") { |
| 25 | + try EnumDeclSyntax("enum \(raw: child.name)Options: TokenSpecSet") { |
| 26 | + for choice in choices { |
| 27 | + switch choice { |
| 28 | + case .keyword(let keywordText): |
| 29 | + let keyword = KEYWORDS.first(where: { $0.name == keywordText })! |
| 30 | + DeclSyntax("case \(raw: keyword.escapedName)") |
| 31 | + case .token(let tokenText): |
| 32 | + let token = SYNTAX_TOKEN_MAP[tokenText]! |
| 33 | + DeclSyntax("case \(raw: token.swiftKind)") |
| 34 | + } |
| 35 | + } |
| 36 | + |
| 37 | + try InitializerDeclSyntax("init?(lexeme: Lexer.Lexeme)") { |
| 38 | + try SwitchExprSyntax("switch PrepareForKeywordMatch(lexeme)") { |
| 39 | + for choice in choices { |
| 40 | + switch choice { |
| 41 | + case .keyword(let keywordText): |
| 42 | + let keyword = KEYWORDS.first(where: { $0.name == keywordText })! |
| 43 | + SwitchCaseSyntax("case TokenSpec(.\(raw: keyword.escapedName)): self = .\(raw: keyword.escapedName)") |
| 44 | + case .token(let tokenText): |
| 45 | + let token = SYNTAX_TOKEN_MAP[tokenText]! |
| 46 | + SwitchCaseSyntax( |
| 47 | + "case TokenSpec(.\(raw: token.swiftKind)): self = .\(raw: token.swiftKind)" |
| 48 | + ) |
| 49 | + } |
| 50 | + } |
| 51 | + SwitchCaseSyntax("default: return nil") |
| 52 | + } |
| 53 | + } |
| 54 | + |
| 55 | + try VariableDeclSyntax("var spec: TokenSpec") { |
| 56 | + try SwitchExprSyntax("switch self") { |
| 57 | + for choice in choices { |
| 58 | + switch choice { |
| 59 | + case .keyword(let keywordText): |
| 60 | + let keyword = KEYWORDS.first(where: { $0.name == keywordText })! |
| 61 | + SwitchCaseSyntax( |
| 62 | + "case .\(raw: keyword.escapedName): return .keyword(.\(raw: keyword.escapedName))" |
| 63 | + ) |
| 64 | + case .token(let tokenText): |
| 65 | + let token = SYNTAX_TOKEN_MAP[tokenText]! |
| 66 | + SwitchCaseSyntax( |
| 67 | + "case .\(raw: token.swiftKind): return .\(raw: token.swiftKind)" |
| 68 | + ) |
| 69 | + } |
| 70 | + } |
| 71 | + } |
| 72 | + } |
| 73 | + } |
| 74 | + } |
| 75 | + } |
| 76 | + } |
| 77 | + } |
| 78 | +} |
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