Function parseTopLevel

src/parser/syntaxes/toplevel.ts:15–57

(s: ITokenStream)

 * ```
*/
export function parseTopLevel(s: ITokenStream): Ast.Node[] {
	const nodes: Ast.Node[] = [];

	while (s.is(TokenKind.NewLine)) {
		s.next();
	}

	while (!s.is(TokenKind.EOF)) {
		switch (s.getTokenKind()) {
			case TokenKind.Colon2: {
				nodes.push(parseNamespace(s));
				break;
			}
			case TokenKind.Sharp3: {
				nodes.push(parseMeta(s));
				break;
			}
			default: {
				nodes.push(parseStatement(s));
				break;
			}
		}

		// terminator
		switch (s.getTokenKind()) {
			case TokenKind.NewLine:
			case TokenKind.SemiColon: {
				while (s.is(TokenKind.NewLine) || s.is(TokenKind.SemiColon)) {
					s.next();
				}
				break;
			}
			case TokenKind.EOF: {
				break;
			}
			default: {
				throw new AiScriptSyntaxError('Multiple statements cannot be placed on a single line.', s.getPos());
			}
		}
	}

	return nodes;
}

/**
 * ```abnf