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feat: add arg placeholder (#420)

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Co-authored-by: gamife <gamife9886@gmail.com>
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gamife 2022-02-17 20:55:21 +08:00 • committed by GitHub
parent 1da49c15c7
commit 899f91b1f6
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4 changed files with 60 additions and 1 deletions
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5
src/parser.rs
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@ -505,6 +505,10 @@ impl<'a> Parser<'a> {
self.expect_token(&Token::RParen)?;
Ok(expr)
}
Token::Placeholder(_) => {
self.prev_token();
Ok(Expr::Value(self.parse_value()?))
}
unexpected => self.expected("an expression:", unexpected),
}?;
@ -2261,6 +2265,7 @@ impl<'a> Parser<'a> {
Token::SingleQuotedString(ref s) => Ok(Value::SingleQuotedString(s.to_string())),
Token::NationalStringLiteral(ref s) => Ok(Value::NationalStringLiteral(s.to_string())),
Token::HexStringLiteral(ref s) => Ok(Value::HexStringLiteral(s.to_string())),
Token::Placeholder(ref s) => Ok(Value::Placeholder(s.to_string())),
unexpected => self.expected("a value", unexpected),
}
}