Function parseCall

src/parser/syntaxes/expressions.ts:301–347

* Call = "(" [Expr *(SEP Expr) [SEP]] ")"

(s: ITokenStream, target: Ast.Expression)

 * Call = "(" [Expr *(SEP Expr) [SEP]] ")"
*/
function parseCall(s: ITokenStream, target: Ast.Expression): Ast.Call {
	const startPos = s.getPos();
	const items: Ast.Expression[] = [];

	s.expect(TokenKind.OpenParen);
	s.next();

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

	while (!s.is(TokenKind.CloseParen)) {
		items.push(parseExpr(s, false));

		// separator
		switch (s.getTokenKind()) {
			case TokenKind.NewLine: {
				s.next();
				break;
			}
			case TokenKind.Comma: {
				s.next();
				if (s.is(TokenKind.NewLine)) {
					s.next();
				}
				break;
			}
			case TokenKind.CloseParen: {
				break;
			}
			case TokenKind.EOF: {
				throw new AiScriptUnexpectedEOFError(s.getPos());
			}
			default: {
				throw new AiScriptSyntaxError('separator expected', s.getPos());
			}
		}
	}

	s.expect(TokenKind.CloseParen);
	s.next();

	return NODE('call', {
		target,
		args: items,
	}, startPos, s.getPos());
}

/**
 * ```abnf