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add slightly more descriptive syntax errors

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This commit is contained in:
Mark Thom
2018-08-30 00:35:42 -06:00
parent 872b153b08
commit ebd62a2c91
3 changed files with 69 additions and 24 deletions
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11
src/prolog/macros.rs
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@@ -46,6 +46,12 @@ macro_rules! heap_integer {
)
}
macro_rules! heap_char {
($c:expr) => (
HeapCellValue::Addr(Addr::Con(Constant::Char($c)))
)
}
macro_rules! heap_atom {
($name:expr) => (
HeapCellValue::Addr(Addr::Con(atom!($name)))
@@ -59,12 +65,15 @@ macro_rules! functor {
($name:expr) => (
vec![ heap_atom!($name) ]
);
($name:expr, $len:expr) => (
vec![ HeapCellValue::NamedStr($len, clause_name!($name), None) ]
);
($name:expr, $len:expr, [$($args:expr),*]) => (
vec![ HeapCellValue::NamedStr($len, clause_name!($name), None), $($args),* ]
);
($name:expr, $len:expr, [$($args:expr),*], $fix: expr) => (
vec![ HeapCellValue::NamedStr($len, clause_name!($name), Some($fix)), $($args),* ]
)
);
}
macro_rules! temp_v {