Add impl of as_toml()

libimagruby/src/ruby_utils.rs

@@ -19,9 +19,13 @@
 
 // Ruby -> Toml translation primitives
 
-use ruru::AnyObject;
+use std::collections::BTreeMap;
+
+use ruru::{Object, AnyObject, Class, RString, Fixnum, Float, Symbol, Hash, Array, VM};
+use ruru::types::ValueType;
 use toml::Value;
 
+
 pub trait AsToml : Sized {
     fn as_toml(&self) -> Value;
 }
@@ -36,7 +40,128 @@ impl<T: AsToml> IntoToml for T { }
 impl AsToml for AnyObject {
 
     fn as_toml(&self) -> Value {
-        unimplemented!()
+        match self.value().ty() {
+             ValueType::None => {
+                 Value::Boolean(false)
+             },
+             ValueType::Object => {
+                 let rte = Class::from_existing("TypeError");
+                 VM::raise(rte, "Cannot translate type '' to fit into TOML");
+                 Value::Boolean(false)
+             },
+             ValueType::Class => {
+                 let rte = Class::from_existing("TypeError");
+                 VM::raise(rte, "Cannot translate type '' to fit into TOML");
+                 Value::Boolean(false)
+             },
+             ValueType::Module => {
+                 let rte = Class::from_existing("TypeError");
+                 VM::raise(rte, "Cannot translate type '' to fit into TOML");
+                 Value::Boolean(false)
+             },
+             ValueType::Float =>
+                        Value::Float(self.try_convert_to::<Float>().unwrap().to_f64()),
+             ValueType::RString =>
+                        Value::String(self.try_convert_to::<RString>().unwrap().to_string()),
+             ValueType::Regexp => {
+                 let rte = Class::from_existing("TypeError");
+                 VM::raise(rte, "Cannot translate type '' to fit into TOML");
+                 Value::Boolean(false)
+             },
+             ValueType::Array => {
+                let vals = self
+                    .try_convert_to::<Array>()
+                    .unwrap()
+                    .into_iter()
+                    .map(|v| v.as_toml())
+                    .collect::<Vec<Value>>();
+
+                Value::Array(vals)
+             },
+             ValueType::Hash => {
+                let mut btm = BTreeMap::new();
+                self.try_convert_to::<Hash>()
+                    .unwrap()
+                    .each(|key, value| {
+                        let key = match key.as_toml() {
+                            Value::String(s) => s,
+                            _ => {
+                                let rte = Class::from_existing("TypeError");
+                                VM::raise(rte, "Can only have String or Symbol as Key for TOML maps");
+                                String::new()
+                            }
+                        };
+                        let value = value.as_toml();
+                        btm.insert(key, value);
+                    });
+                Value::Table(btm)
+             },
+             ValueType::Struct => {
+                 let rte = Class::from_existing("TypeError");
+                 VM::raise(rte, "Cannot translate type '' to fit into TOML");
+                 Value::Boolean(false)
+             },
+             ValueType::Bignum => {
+                 let rte = Class::from_existing("TypeError");
+                 VM::raise(rte, "Cannot translate type '' to fit into TOML");
+                 Value::Boolean(false)
+             },
+             ValueType::File => {
+                 let rte = Class::from_existing("TypeError");
+                 VM::raise(rte, "Cannot translate type '' to fit into TOML");
+                 Value::Boolean(false)
+             },
+             ValueType::Data => {
+                 let rte = Class::from_existing("TypeError");
+                 VM::raise(rte, "Cannot translate type '' to fit into TOML");
+                 Value::Boolean(false)
+             },
+             ValueType::Match => {
+                 let rte = Class::from_existing("TypeError");
+                 VM::raise(rte, "Cannot translate type '' to fit into TOML");
+                 Value::Boolean(false)
+             },
+             ValueType::Complex => {
+                 let rte = Class::from_existing("TypeError");
+                 VM::raise(rte, "Cannot translate type '' to fit into TOML");
+                 Value::Boolean(false)
+             },
+             ValueType::Rational => {
+                 let rte = Class::from_existing("TypeError");
+                 VM::raise(rte, "Cannot translate type '' to fit into TOML");
+                 Value::Boolean(false)
+             },
+             ValueType::Nil => Value::Boolean(false),
+             ValueType::True => Value::Boolean(true),
+             ValueType::False => Value::Boolean(false),
+             ValueType::Symbol => Value::String(self.try_convert_to::<Symbol>().unwrap().to_string()),
+             ValueType::Fixnum => Value::Integer(self.try_convert_to::<Fixnum>().unwrap().to_i64()),
+             ValueType::Undef => {
+                 let rte = Class::from_existing("TypeError");
+                 VM::raise(rte, "Cannot translate type '' to fit into TOML");
+                 Value::Boolean(false)
+             },
+             ValueType::Node => {
+                 let rte = Class::from_existing("TypeError");
+                 VM::raise(rte, "Cannot translate type '' to fit into TOML");
+                 Value::Boolean(false)
+             },
+             ValueType::IClass => {
+                 let rte = Class::from_existing("TypeError");
+                 VM::raise(rte, "Cannot translate type '' to fit into TOML");
+                 Value::Boolean(false)
+             },
+             ValueType::Zombie => {
+                 let rte = Class::from_existing("TypeError");
+                 VM::raise(rte, "Cannot translate type '' to fit into TOML");
+                 Value::Boolean(false)
+             },
+             ValueType::Mask => {
+                 let rte = Class::from_existing("TypeError");
+                 VM::raise(rte, "Cannot translate type '' to fit into TOML");
+                 Value::Boolean(false)
+             },
+        }
     }
 
 }