diff options
| -rw-r--r-- | src/main.rs | 25 |
1 files changed, 24 insertions, 1 deletions
diff --git a/src/main.rs b/src/main.rs index 9843aa7..0685cb0 100644 --- a/src/main.rs +++ b/src/main.rs @@ -214,7 +214,30 @@ mod runtime { evaluate_expr(symbol_table, sub_expr) } }, - ast::Expression::Binary(inner1, inner2) => todo!("[runtime] binary expressions"), + ast::Expression::Binary(inner1, inner2) => match inner1 { + ast::ExpressionInner::Expression(value_rc) => { + let sub_expr = &**value_rc; + evaluate_expr(symbol_table, sub_expr) + } + ast::ExpressionInner::Symbol(value) => { + let mut lhs_value_rc: Rc<Value>; + + if let Some(builtin) = try_evaluate_builtin(value) { + lhs_value_rc = Rc::new(builtin); + } else if let Some(lookup) = symbol_table.get(value) { + lhs_value_rc = *lookup; + } else { + panic!("[runtime] symbol not defined: {:#?}", value); + } + + let evaled_arg = evaluate_expr_inner(inner2); + try_apply_function(lhs_value_rc, evaled_arg, None) + } + other => unreachable!( + "[runtime] this should not be on the left side of a binary expression: {:#?}", + other + ), + }, } // println!("[runtime] evaluating expression"); |