// prefixed_expression: <prefix>? postfix_expression
private Expression ParsePrefixedExpression()
{
int start;
Token t;
Expression ret;
if (IsPrefixToken(PeekToken()))
{
if (PeekToken(TokenKind.KeywordAwait))
return ParseAwaitExpression();
t = NextToken();
start = GetStart();
ret = new UnaryExpression(false, t.Kind, ParsePrefixedExpression());
ret.SetLoc(_globalParent, start, GetEnd());
return ret;
}
else
{
return ParsePostfixedExpression();
}
}
// postfixed_expression: call_or_new_expression ( <postfix_op> )*
private Expression ParsePostfixedExpression()
{
Expression ret = ParseCallOrNewExpression();
if (ret == null)
return ret;
while (IsPostfixToken(PeekToken()))
{
Token t = NextToken();
var start = ret.StartIndex;
ret = new UnaryExpression(true, t.Kind, ret);
ret.SetLoc(_globalParent, start, GetEnd());
}
return ret;
}