Boa 0.9.0

Boa is a Javascript lexer, parser and Just-in-Time compiler written in Rust. Currently, it has support for some of the language.
Documentation 
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use super::{Executable, Interpreter};
use crate::{
    builtins::value::{ResultValue, Type},
    syntax::ast::node::{GetConstField, GetField},
};

impl Executable for GetConstField {
    fn run(&self, interpreter: &mut Interpreter) -> ResultValue {
        let mut obj = self.obj().run(interpreter)?;
        if obj.get_type() != Type::Object || obj.get_type() != Type::Symbol {
            obj = interpreter.to_object(&obj)?;
        }

        Ok(obj.get_field(self.field()))
    }
}

impl Executable for GetField {
    fn run(&self, interpreter: &mut Interpreter) -> ResultValue {
        let mut obj = self.obj().run(interpreter)?;
        if obj.get_type() != Type::Object || obj.get_type() != Type::Symbol {
            obj = interpreter.to_object(&obj)?;
        }
        let field = self.field().run(interpreter)?;

        Ok(obj.get_field(field.to_string()))
    }
}