diff options
Diffstat (limited to 'users/tazjin/rlox/src/bytecode/compiler.rs')
-rw-r--r-- | users/tazjin/rlox/src/bytecode/compiler.rs | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/users/tazjin/rlox/src/bytecode/compiler.rs b/users/tazjin/rlox/src/bytecode/compiler.rs index 8eef40f0e669..8d3f716d1647 100644 --- a/users/tazjin/rlox/src/bytecode/compiler.rs +++ b/users/tazjin/rlox/src/bytecode/compiler.rs @@ -128,6 +128,22 @@ fn rule_for<T: Iterator<Item = Token>>(token: &TokenKind) -> ParseRule<T> { ParseRule::new(None, Some(Compiler::binary), Precedence::Equality) } + TokenKind::Greater => { + ParseRule::new(None, Some(Compiler::binary), Precedence::Comparison) + } + + TokenKind::GreaterEqual => { + ParseRule::new(None, Some(Compiler::binary), Precedence::Comparison) + } + + TokenKind::Less => { + ParseRule::new(None, Some(Compiler::binary), Precedence::Comparison) + } + + TokenKind::LessEqual => { + ParseRule::new(None, Some(Compiler::binary), Precedence::Comparison) + } + _ => ParseRule::new(None, None, Precedence::None), } } @@ -209,6 +225,18 @@ impl<T: Iterator<Item = Token>> Compiler<T> { } TokenKind::EqualEqual => self.emit_op(OpCode::OpEqual), + TokenKind::Greater => self.emit_op(OpCode::OpGreater), + + TokenKind::GreaterEqual => { + self.emit_op(OpCode::OpLess); + self.emit_op(OpCode::OpNot); + } + + TokenKind::Less => self.emit_op(OpCode::OpLess), + TokenKind::LessEqual => { + self.emit_op(OpCode::OpGreater); + self.emit_op(OpCode::OpNot); + } _ => unreachable!("only called for binary operator tokens"), } |