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#[macro_export]
macro_rules! check {
($self:ident, $($kind:pat_param)|+) => {
if let Some(Token {kind: $( $kind )|+, ..}) = $self.tokens.peek() {
true
} else {
false
}
};
}
#[macro_export]
macro_rules! consume {
($self:ident, $($kind:pat_param)|+) => {
if let Some(token) = $self.tokens.next() {
if let Token {kind: $( $kind )|+, ..} = token {
Ok(token)
} else {
Err(ParserError::new(ParserErrorLocation::Specific(token.location), ParserErrorKind::UnexpectedToken {
received: token.kind,
expected: merge_token_names!($($kind),+),
}))
}
} else {
Err(ParserError::new(ParserErrorLocation::Eof, ParserErrorKind::UnexpectedEof {
expected: merge_token_names!($($kind),+),
}))
}
};
}
#[macro_export]
macro_rules! consume_if {
($self:ident, $($kind:pat_param)|+) => {
if let Some(Token {kind: $( $kind )|+, ..}) = $self.tokens.peek() {
Some($self.tokens.next().unwrap())
} else {
None
}
};
}
#[macro_export]
macro_rules! inner {
($token:expr, $kind:path ) => {
match $token.kind {
$kind(inner) => inner,
_ => panic!("Tried getting inner content of incorrect kind."),
}
};
}
// TODO: Better names for the tokens.
#[macro_export]
macro_rules! merge_token_names {
($($kind:pat_param),+) => {
vec![$( stringify!($kind) ),+].join(", ")
};
}
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