boa_engine 0.17.0

Boa is a Javascript lexer, parser and compiler written in Rust. Currently, it has support for some of the language.
Documentation 
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use boa_ast::expression::operator::{
    binary::{ArithmeticOp, BinaryOp, BitwiseOp, LogicalOp, RelationalOp},
    Binary, BinaryInPrivate,
};

use crate::{bytecompiler::ByteCompiler, vm::Opcode};

impl ByteCompiler<'_, '_> {
    pub(crate) fn compile_binary(&mut self, binary: &Binary, use_expr: bool) {
        self.compile_expr(binary.lhs(), true);
        match binary.op() {
            BinaryOp::Arithmetic(op) => {
                self.compile_expr(binary.rhs(), true);
                match op {
                    ArithmeticOp::Add => self.emit_opcode(Opcode::Add),
                    ArithmeticOp::Sub => self.emit_opcode(Opcode::Sub),
                    ArithmeticOp::Div => self.emit_opcode(Opcode::Div),
                    ArithmeticOp::Mul => self.emit_opcode(Opcode::Mul),
                    ArithmeticOp::Exp => self.emit_opcode(Opcode::Pow),
                    ArithmeticOp::Mod => self.emit_opcode(Opcode::Mod),
                }

                if !use_expr {
                    self.emit(Opcode::Pop, &[]);
                }
            }
            BinaryOp::Bitwise(op) => {
                self.compile_expr(binary.rhs(), true);
                match op {
                    BitwiseOp::And => self.emit_opcode(Opcode::BitAnd),
                    BitwiseOp::Or => self.emit_opcode(Opcode::BitOr),
                    BitwiseOp::Xor => self.emit_opcode(Opcode::BitXor),
                    BitwiseOp::Shl => self.emit_opcode(Opcode::ShiftLeft),
                    BitwiseOp::Shr => self.emit_opcode(Opcode::ShiftRight),
                    BitwiseOp::UShr => self.emit_opcode(Opcode::UnsignedShiftRight),
                }

                if !use_expr {
                    self.emit(Opcode::Pop, &[]);
                }
            }
            BinaryOp::Relational(op) => {
                self.compile_expr(binary.rhs(), true);
                match op {
                    RelationalOp::Equal => self.emit_opcode(Opcode::Eq),
                    RelationalOp::NotEqual => self.emit_opcode(Opcode::NotEq),
                    RelationalOp::StrictEqual => self.emit_opcode(Opcode::StrictEq),
                    RelationalOp::StrictNotEqual => self.emit_opcode(Opcode::StrictNotEq),
                    RelationalOp::GreaterThan => self.emit_opcode(Opcode::GreaterThan),
                    RelationalOp::GreaterThanOrEqual => {
                        self.emit_opcode(Opcode::GreaterThanOrEq);
                    }
                    RelationalOp::LessThan => self.emit_opcode(Opcode::LessThan),
                    RelationalOp::LessThanOrEqual => self.emit_opcode(Opcode::LessThanOrEq),
                    RelationalOp::In => self.emit_opcode(Opcode::In),
                    RelationalOp::InstanceOf => self.emit_opcode(Opcode::InstanceOf),
                }

                if !use_expr {
                    self.emit(Opcode::Pop, &[]);
                }
            }
            BinaryOp::Logical(op) => {
                match op {
                    LogicalOp::And => {
                        let exit = self.emit_opcode_with_operand(Opcode::LogicalAnd);
                        self.compile_expr(binary.rhs(), true);
                        self.patch_jump(exit);
                    }
                    LogicalOp::Or => {
                        let exit = self.emit_opcode_with_operand(Opcode::LogicalOr);
                        self.compile_expr(binary.rhs(), true);
                        self.patch_jump(exit);
                    }
                    LogicalOp::Coalesce => {
                        let exit = self.emit_opcode_with_operand(Opcode::Coalesce);
                        self.compile_expr(binary.rhs(), true);
                        self.patch_jump(exit);
                    }
                };

                if !use_expr {
                    self.emit(Opcode::Pop, &[]);
                }
            }
            BinaryOp::Comma => {
                self.emit(Opcode::Pop, &[]);
                self.compile_expr(binary.rhs(), true);

                if !use_expr {
                    self.emit(Opcode::Pop, &[]);
                }
            }
        };
    }

    pub(crate) fn compile_binary_in_private(&mut self, binary: &BinaryInPrivate, use_expr: bool) {
        let index = self.get_or_insert_private_name(*binary.lhs());
        self.compile_expr(binary.rhs(), true);
        self.emit(Opcode::InPrivate, &[index]);

        if !use_expr {
            self.emit_opcode(Opcode::Pop);
        }
    }
}