Token ExpectMatch(Symbol right, Symbol left, SourceLocation leftStart)
{
if (Current.Symbol != right)
{
if (Current.Line == leftStart.Line)
{
throw ReportSyntaxErrorNear("'{0}' expected",
right.ToTokenString());
}
throw ReportSyntaxErrorNear("'{0}' expected (to close '{1}' at line {2})",
right.ToTokenString(),
left.ToTokenString(),
leftStart.Line);
}
return Consume();
}
Token Expect(Symbol symbol)
{
if (Current.Symbol != symbol)
{
throw ReportSyntaxErrorNear("'{0}' expected",
symbol.ToTokenString());
}
return Consume();
}