diff options
Diffstat (limited to 'src/parse/parser.rs')
| -rw-r--r-- | src/parse/parser.rs | 34 |
1 files changed, 33 insertions, 1 deletions
diff --git a/src/parse/parser.rs b/src/parse/parser.rs index a882f35..6b0a785 100644 --- a/src/parse/parser.rs +++ b/src/parse/parser.rs @@ -87,7 +87,7 @@ impl<T: Iterator<Item = Token>> Parser<T> { fn assignment_expression(&mut self) -> Result<Expression> { // Parse any expressions as l-values for now. - let left = self.equality_expression()?; + let left = self.or_expression()?; if let Some(op) = consume_if!(self, Assign | ConstAssign) { let right = self.assignment_expression()?; @@ -102,6 +102,38 @@ impl<T: Iterator<Item = Token>> Parser<T> { } } + fn or_expression(&mut self) -> Result<Expression> { + let mut left = self.and_expression()?; + + while let Some(op) = consume_if!(self, OpAnd) { + let right = self.and_expression()?; + + left = Expression::Binary { + left: Box::new(left), + op: BinaryOperator::from_token(op), + right: Box::new(right), + }; + } + + Ok(left) + } + + fn and_expression(&mut self) -> Result<Expression> { + let mut left = self.equality_expression()?; + + while let Some(op) = consume_if!(self, OpOr) { + let right = self.equality_expression()?; + + left = Expression::Binary { + left: Box::new(left), + op: BinaryOperator::from_token(op), + right: Box::new(right), + }; + } + + Ok(left) + } + fn equality_expression(&mut self) -> Result<Expression> { let mut left = self.comparison_expression()?; |
