1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
|
extension InterfaceSyntax {
static func parse(
lexer: inout Lexer, documents: DocumentsSyntax
) throws -> SyntaxNode<InterfaceSyntax> {
try lexer.expect(.interface)
let name = try Identifier.parse(lexer: &lexer)
let items = try parseItems(lexer: &lexer)
return .init(syntax: InterfaceSyntax(documents: documents, name: name, items: items))
}
static func parseItems(lexer: inout Lexer) throws -> [InterfaceItemSyntax] {
try lexer.expect(.leftBrace)
var items: [InterfaceItemSyntax] = []
while true {
let docs = try DocumentsSyntax.parse(lexer: &lexer)
if lexer.eat(.rightBrace) {
break
}
items.append(try InterfaceItemSyntax.parse(lexer: &lexer, documents: docs))
}
return items
}
}
extension InterfaceItemSyntax {
static func parse(lexer: inout Lexer, documents: DocumentsSyntax) throws -> InterfaceItemSyntax {
switch lexer.peek()?.kind {
case .type:
return try .typeDef(.init(syntax: .parse(lexer: &lexer, documents: documents)))
case .flags:
return try .typeDef(.init(syntax: .parseFlags(lexer: &lexer, documents: documents)))
case .enum:
return try .typeDef(.init(syntax: .parseEnum(lexer: &lexer, documents: documents)))
case .variant:
return try .typeDef(.init(syntax: .parseVariant(lexer: &lexer, documents: documents)))
case .resource:
return try .typeDef(TypeDefSyntax.parseResource(lexer: &lexer, documents: documents))
case .record:
return try .typeDef(.init(syntax: .parseRecord(lexer: &lexer, documents: documents)))
case .union:
return try .typeDef(.init(syntax: .parseUnion(lexer: &lexer, documents: documents)))
case .id, .explicitId:
return try .function(NamedFunctionSyntax.parse(lexer: &lexer, documents: documents))
case .use:
return try .use(UseSyntax.parse(lexer: &lexer))
default:
throw ParseError(description: "`import`, `export`, `include`, `use`, or type definition")
}
}
}
|
