package parser import "git.tebibyte.media/arf/arf/lexer" import "git.tebibyte.media/arf/arf/infoerr" // parseType parses a type notation of the form Name, {Name}, etc. func (parser *ParsingOperation) parseType () (what Type, err error) { err = parser.expect(lexer.TokenKindName, lexer.TokenKindLBrace) if err != nil { return } what.location = parser.token.Location() what.kind = TypeKindBasic if parser.token.Is(lexer.TokenKindLBrace) { what.kind = TypeKindPointer err = parser.nextToken() if err != nil { return } var points Type points, err = parser.parseType() if err != nil { return } what.points = &points err = parser.expect ( lexer.TokenKindRBrace, lexer.TokenKindElipsis) if err != nil { return } if parser.token.Is(lexer.TokenKindElipsis) { what.kind = TypeKindVariableArray err = parser.nextToken(lexer.TokenKindRBrace) if err != nil { return } } err = parser.nextToken() if err != nil { return } } else { what.name, err = parser.parseIdentifier() if err != nil { return } } for { if !parser.token.Is(lexer.TokenKindColon) { break } err = parser.nextToken() if err != nil { return } err = parser.skipWhitespace() if err != nil { return } err = parser.expect(lexer.TokenKindName, lexer.TokenKindUInt) if err != nil { return } if parser.token.Is(lexer.TokenKindName) { // parse type qualifier qualifier := parser.token.Value().(string) switch qualifier { case "mut": what.mutable = true default: err = parser.token.NewError ( "unknown type qualifier \"" + qualifier + "\"", infoerr.ErrorKindError) return } err = parser.nextToken() if err != nil { return } } else if parser.token.Is(lexer.TokenKindUInt) { // parse fixed array length what.length = parser.token.Value().(uint64) err = parser.nextToken() if err != nil { return } } } return }