Implement varying, add tests for list.

README.md

@@ -83,6 +83,7 @@ release(refer);
 
 `encode(refer:Reference) -> Vec<u8>`  
 `encode_raw(refer:Reference) -> Vec<u8>`
+
 Serializes an object into binary encoding.
 The raw variant does not produce a tag prefix for the root object.
 
@@ -91,6 +92,7 @@ The raw variant does not produce a tag prefix for the root object.
 
 `decode(data:Vec<u8>) -> Result<Reference,()>`  
 `decode_raw(data:Vec<u8>, type_id:usize) -> Result<Reference,()>`
+
 Parses a valid binary encoding and produces the represented object.
 The raw variant does not decode a tag prefix on the root object.
 
@@ -139,10 +141,14 @@ Stores a value of any other type.
 
 `is_null() -> bool`
 
+Specifies whether or not the variable contains a object.
+
 ---
 
 `get() -> Reference`
 
+Returns a reference to the contained object.
+
 ```
 let var = Varying::with(*Boolean::with(true));
 let value = Boolean::from(var.get()).unwrap();
@@ -151,6 +157,8 @@ let value = Boolean::from(var.get()).unwrap();
 
 `set(refer:Reference)`
 
+Replaces the contained object.
+
 ```
 let var = Varying::new();
 var.set(*Sequence::with("Hello!"));
@@ -163,6 +171,8 @@ Stores the value true or false.
 
 `get() -> bool`
 
+Returns the contained value.
+
 ```
 let value = Boolean::with(true);
 if value.get() {
@@ -173,6 +183,8 @@ if value.get() {
 
 `set(value:bool)`
 
+Replaces the contained value.
+
 ```
 let mut value = Boolean::new();
 value.set(true);
@@ -184,6 +196,9 @@ value.set(true);
 Stores a non-negative integer value.
 
 `get() -> u64`
+
+Returns the contained value.
+
 ```
 let value = Integer::with(-1);
 println!("{}", value.get());
@@ -191,6 +206,9 @@ println!("{}", value.get());
 ---
 
 `set(value:u64)`
+
+Replaces the contained value.
+
 ```
 let mut value = Integer::new();
 value.set(-273);
@@ -202,6 +220,9 @@ value.set(-273);
 Stores a signed integer value.
 
 `get() -> i64`
+
+Returns the contained value.
+
 ```
 let value = Integer::with(-1);
 println!("{}", value.get());
@@ -209,6 +230,9 @@ println!("{}", value.get());
 ---
 
 `set(value:i64)`
+
+Replaces the contained value.
+
 ```
 let mut value = Integer::new();
 value.set(-273);
@@ -216,6 +240,10 @@ value.set(-273);
 ---
 
 
+## Significant
+Stores a fixed-precision, variable-magnitude 
+
+
 ## Block
 Constant-sized series of bytes.
 

src/interface/list.rs

@@ -10,7 +10,7 @@ use crate::runtime::{
     list_reserve,
 };
 use crate::tag;
-use super::{varying, list};
+use super::list;
 
 pub struct List {
     managed:bool,
@@ -35,9 +35,9 @@ impl List {
         }
     }
 
-    pub fn with(data:Vec<Reference>) -> Self
+    pub fn with(class:usize, data:Vec<Reference>) -> Self
     {
-        let mut obj = Self::new(varying());
+        let mut obj = Self::new(class);
         for item in data {
             obj.insert(obj.length(), item);
         }

src/interface/schema.rs

@@ -12,15 +12,6 @@ use crate::runtime::{
 use crate::tag;
 use super::schema;
 
-//pub struct Builder {
-//    data:Schema,
-//}
-//impl Builder {
-//    pub fn add() { }
-//    pub fn map() { }
-//    pub fn bind() { }
-//}
-
 pub struct Schema {
     managed:bool,
     addr:Reference,
@@ -54,11 +45,6 @@ impl Schema {
         return obj;
     }
     
-    //pub fn build() -> Builder
-    //{
-    //    Builder { }
-    //}
-    
     pub fn length(&self) -> usize
     {
         unsafe {schema_length(self.addr)}

src/interface/varying.rs

@@ -2,6 +2,7 @@ use crate::runtime::{
     Reference,
     acquire, release,
     type_key,
+    varying_get, varying_set,
 };
 use crate::tag;
 use super::varying;
@@ -29,14 +30,19 @@ impl Varying {
         }
     }
 
-    pub fn set(&mut self, _addr:Reference)
+    pub fn is_null(&self) -> bool
     {
+        (unsafe {varying_get(self.addr)}).address == 0
+    }
 
+    pub fn set(&mut self, source:Reference)
+    {
+        unsafe { varying_set(self.addr, source); }
     }
 
     pub fn get(&self) -> Reference
     {
-        self.addr
+        unsafe { varying_get(self.addr) }
     }
 }
 impl std::ops::Deref for Varying {

src/lib.rs

@@ -31,7 +31,6 @@ pub fn test() {
         *Natural::with(25),
     ]).unwrap());
 
-
     {
         // get and remove bullet
         let mut list = List::from(mag.at(1)).unwrap();
@@ -60,103 +59,4 @@ pub fn test() {
 }
 
 #[cfg(test)]
-mod tests {
+mod tests;
-    #[test]
-    fn boolean_initialize()
-    {
-        let value = crate::Boolean::new();
-        assert_eq!(false, value.get(), "Boolean::new() produces value of false.");
-    }
-
-    #[test]
-    fn boolean_with()
-    {
-        assert_eq!(false, crate::Boolean::with(false).get(), "Boolean::with(false) produces value of false.");
-        assert_eq!(true, crate::Boolean::with(true).get(), "Boolean::with(true) produces value of true.");
-    }
-
-    #[test]
-    fn boolean_set_get()
-    {
-        let mut value = crate::Boolean::new();
-        value.set(true);
-        assert_eq!(true, value.get(), "Boolean.set(true) produces value of true.");
-        value.set(false);
-        assert_eq!(false, value.get(), "Boolean.set(false) produces value of false.");
-    }
-
-    #[test]
-    fn natural_initialize()
-    {
-        let value = crate::Natural::new();
-        assert_eq!(0, value.get(), "Natural::new() produces value of 0.");
-    }
-
-    #[test]
-    fn natural_set_get()
-    {
-        let mut value = crate::Natural::new();
-        value.set(12);
-        assert_eq!(12, value.get(), "Natural.set(12) produces value of 12.");
-        value.set(38695);
-        assert_eq!(38695, value.get(), "Natural.set(38695) produces value of 38695.");
-    }
-
-    #[test]
-    fn integer_initialize()
-    {
-        let value = crate::Integer::new();
-        assert_eq!(0, value.get(), "Integer::new() produces value of 0.");
-    }
-
-    #[test]
-    fn integer_set_get()
-    {
-        let mut value = crate::Integer::new();
-        value.set(-273);
-        assert_eq!(-273, value.get(), "Integer.set(-273) produces value of -273.");
-        value.set(100);
-        assert_eq!(100, value.get(), "Integer.set(100) produces value of 100.");
-    }
-
-    #[test]
-    fn block_initialize()
-    {
-        let value = crate::Block::new(8);
-        assert_eq!(8, value.length(), "Block::new(8) has length of 8.");
-        assert_eq!(vec![0;8], value.get(), "Block::new(8) has value of 0.");
-    }
-
-    #[test]
-    fn block_set_get()
-    {
-        let mut value = crate::Block::new(4);
-        value.set(vec![1, 2, 3, 4]);
-        assert_eq!(vec![1, 2, 3, 4], value.get(), "Block::set([1,2,3,4]) has value of [1,2,3,4].");
-    }
-
-    #[test]
-    fn sequence_initialize()
-    {
-        let value = crate::Sequence::new();
-        assert_eq!(0, value.length(), "Sequence::new() has length 0.");
-    }
-
-    #[test]
-    fn sequence_set_get_raw()
-    {
-        let mut value = crate::Sequence::new();
-        value.set_raw(vec![0, 1, 2, 3, 2, 1]);
-        assert_eq!(6, value.length(), "Sequence.set_raw([0,1,2,3,2,1]) has length 6.");
-        assert_eq!(vec![0,1,2,3,2,1], value.get_raw(), "Sequence.set_raw([0,1,2,3,2,1]) produces value [0,1,2,3,2,1].");
-    }
-
-    #[test]
-    fn sequence_set_get_str()
-    {
-        let mut value = crate::Sequence::new();
-        value.set("hello");
-        assert_eq!(5, value.length(), "Sequence.set(hello) has length 5.");
-        assert_eq!(String::from("hello"), value.get(), "Sequence.set(hello) produces value hello.");
-    }
-}

src/runtime/lib.cc

@@ -207,93 +207,95 @@ extern "C" void release(Reference addr)
 
 bool copy(Reference src, Reference dst)
 {
-    Reference source = src;
+    if(src.address != dst.address) {
-    Reference destination = dst;
+        Reference source = src;
+        Reference destination = dst;
         
-    // dereference varying data
+        // dereference varying data
-    if(type_key(src.type) == Type::Tag::Varying) {
+        if(type_key(src.type) == Type::Tag::Varying) {
-        source = *reinterpret_cast<Reference*>(src.address);
+            source = *reinterpret_cast<Reference*>(src.address);
-    }
+        }
 
-    // prepare destination for varying data
+        // prepare destination for varying data
-    if(type_key(dst.type) == Type::Tag::Varying) {
+        if(type_key(dst.type) == Type::Tag::Varying) {
-        auto& dest_ref = *reinterpret_cast<Reference*>(dst.address);
+            auto& dest_ref = *reinterpret_cast<Reference*>(dst.address);
             
-        // determine if memory can be reused, otherwise free and reallocate
+            // determine if memory can be reused, otherwise free and reallocate
-        if(source.type != dest_ref.type) {
+            if(source.type != dest_ref.type) {
-            if(dest_ref.address != nullptr) {
+                if(dest_ref.address != nullptr) {
-                free(dest_ref.address);
+                    free(dest_ref.address);
-                dest_ref.type = Type::Tag::Null;
+                    dest_ref.type = Type::Tag::Null;
-                dest_ref.address = nullptr;
+                    dest_ref.address = nullptr;
+                }
+                dest_ref = acquire(source.type);
             }
-            dest_ref = acquire(source.type);
-        }
-    }
-
-    // copy data into destination
-    if(source.type == destination.type) {
-        switch(type_key(destination.type)) {
-            case Type::Tag::Null: { } break;
-
-            case Type::Tag::Boolean:
-            case Type::Tag::Natural:
-            case Type::Tag::Integer:
-            case Type::Tag::Block:
-            {
-                memcpy(destination.address, source.address, type_size(source.type));
-            } break;
-            
-            case Type::Tag::List: {
-                auto& src_list = *reinterpret_cast<Type::List*>(source.address);
-                auto& dst_list = *reinterpret_cast<Type::List*>(destination.address);
-
-                rawlist_reserve(dst_list.data, type_size(type_inner(source.type)), src_list.data.capacity);
-                dst_list.data.length = src_list.data.length;
-                //dst_list.data = allocate(type_inner(source.type), src_list.capacity);
-
-                for(size_t i = 0; i < src_list.data.length; ++i) {
-                    copy(list_at(source, i), list_at(destination, i));
-                }
-            } break;
-
-            case Type::Tag::Record: {
-                size_t schema_id = type_innerkey(source.type);
-                auto binding = DB_SCHEMA.get(schema_id);
-                if(binding != nullptr) {
-                    for(size_t i = 0; i < binding->data.size(); ++i) {
-                        auto src_cell = record_cell(source, i);
-                        auto dst_cell = record_cell(destination, i);
-                        copy(src_cell, dst_cell);
-                    }
-                }
-            } break;
-
-            case Type::Tag::Schema: {
-                auto& src_schema = *reinterpret_cast<Type::Schema*>(source.address);
-                auto& dst_schema = *reinterpret_cast<Type::Schema*>(destination.address);
-
-                rawlist_reserve(dst_schema.data, sizeof(size_t), src_schema.data.length);
-                rawlist_reserve(dst_schema.map, sizeof(size_t), src_schema.map.length);
-
-                for(size_t i = 0; i < src_schema.data.length; ++i) {
-                    auto src_cell = reinterpret_cast<size_t*>(rawlist_cell(src_schema.data, sizeof(size_t), i));
-                    auto dst_cell = reinterpret_cast<size_t*>(rawlist_cell(dst_schema.data, sizeof(size_t), i));
-                    if(src_cell != nullptr && dst_cell != nullptr) {
-                        *dst_cell = *src_cell;
-                    }
-                }
-
-                for(size_t i = 0; i < src_schema.map.length; ++i) {
-                    auto src_cell = reinterpret_cast<size_t*>(rawlist_cell(src_schema.map, sizeof(size_t), i));
-                    auto dst_cell = reinterpret_cast<size_t*>(rawlist_cell(dst_schema.map, sizeof(size_t), i));
-                    if(src_cell != nullptr && dst_cell != nullptr) {
-                        *dst_cell = *src_cell;
-                    }
-                }
-            } break;
         }
 
-        return true;
+        // copy data into destination
+        if(source.type == destination.type) {
+            switch(type_key(destination.type)) {
+                case Type::Tag::Null: { } break;
+
+                case Type::Tag::Boolean:
+                case Type::Tag::Natural:
+                case Type::Tag::Integer:
+                case Type::Tag::Block:
+                {
+                    memcpy(destination.address, source.address, type_size(source.type));
+                } break;
+                
+                case Type::Tag::List: {
+                    auto& src_list = *reinterpret_cast<Type::List*>(source.address);
+                    auto& dst_list = *reinterpret_cast<Type::List*>(destination.address);
+
+                    rawlist_reserve(dst_list.data, type_size(type_inner(source.type)), src_list.data.capacity);
+                    dst_list.data.length = src_list.data.length;
+                    //dst_list.data = allocate(type_inner(source.type), src_list.capacity);
+
+                    for(size_t i = 0; i < src_list.data.length; ++i) {
+                        copy(list_at(source, i), list_at(destination, i));
+                    }
+                } break;
+
+                case Type::Tag::Record: {
+                    size_t schema_id = type_innerkey(source.type);
+                    auto binding = DB_SCHEMA.get(schema_id);
+                    if(binding != nullptr) {
+                        for(size_t i = 0; i < binding->data.size(); ++i) {
+                            auto src_cell = record_cell(source, i);
+                            auto dst_cell = record_cell(destination, i);
+                            copy(src_cell, dst_cell);
+                        }
+                    }
+                } break;
+
+                case Type::Tag::Schema: {
+                    auto& src_schema = *reinterpret_cast<Type::Schema*>(source.address);
+                    auto& dst_schema = *reinterpret_cast<Type::Schema*>(destination.address);
+
+                    rawlist_reserve(dst_schema.data, sizeof(size_t), src_schema.data.length);
+                    rawlist_reserve(dst_schema.map, sizeof(size_t), src_schema.map.length);
+
+                    for(size_t i = 0; i < src_schema.data.length; ++i) {
+                        auto src_cell = reinterpret_cast<size_t*>(rawlist_cell(src_schema.data, sizeof(size_t), i));
+                        auto dst_cell = reinterpret_cast<size_t*>(rawlist_cell(dst_schema.data, sizeof(size_t), i));
+                        if(src_cell != nullptr && dst_cell != nullptr) {
+                            *dst_cell = *src_cell;
+                        }
+                    }
+
+                    for(size_t i = 0; i < src_schema.map.length; ++i) {
+                        auto src_cell = reinterpret_cast<size_t*>(rawlist_cell(src_schema.map, sizeof(size_t), i));
+                        auto dst_cell = reinterpret_cast<size_t*>(rawlist_cell(dst_schema.map, sizeof(size_t), i));
+                        if(src_cell != nullptr && dst_cell != nullptr) {
+                            *dst_cell = *src_cell;
+                        }
+                    }
+                } break;
+            }
+
+            return true;
+        }
     }
     return false;
 }

src/runtime/mod.rs

@@ -44,6 +44,10 @@ extern "C" {
     pub fn name_keyof(index:usize) -> Str;
     pub fn name_release(data:Str);
 
+    pub fn varying_get(addr:Reference) -> Reference;
+    pub fn varying_set(addr:Reference, source:Reference);
+    pub fn varying_clear(addr:Reference);
+
     pub fn bool_set(addr:Reference, data:bool);
     pub fn bool_get(addr:Reference) -> bool;
     

src/tests.rs

@@ -0,0 +1,224 @@
+use crate::*;
+
+#[test]
+fn boolean_initialize()
+{
+    let value = Boolean::new();
+    assert_eq!(false, value.get(), "Boolean::new() produces value of false.");
+}
+
+#[test]
+fn boolean_with()
+{
+    assert_eq!(false, Boolean::with(false).get(), "Boolean::with(false) produces value of false.");
+    assert_eq!(true, Boolean::with(true).get(), "Boolean::with(true) produces value of true.");
+}
+
+#[test]
+fn boolean_set_get()
+{
+    let mut value = Boolean::new();
+    value.set(true);
+    assert_eq!(true, value.get(), "Boolean.set(true) produces value of true.");
+    value.set(false);
+    assert_eq!(false, value.get(), "Boolean.set(false) produces value of false.");
+}
+
+#[test]
+fn natural_initialize()
+{
+    let value = Natural::new();
+    assert_eq!(0, value.get(), "Natural::new() produces value of 0.");
+}
+
+#[test]
+fn natural_set_get()
+{
+    let mut value = Natural::new();
+    value.set(12);
+    assert_eq!(12, value.get(), "Natural.set(12) produces value of 12.");
+    value.set(38695);
+    assert_eq!(38695, value.get(), "Natural.set(38695) produces value of 38695.");
+}
+
+#[test]
+fn integer_initialize()
+{
+    let value = Integer::new();
+    assert_eq!(0, value.get(), "Integer::new() produces value of 0.");
+}
+
+#[test]
+fn integer_set_get()
+{
+    let mut value = Integer::new();
+    value.set(-273);
+    assert_eq!(-273, value.get(), "Integer.set(-273) produces value of -273.");
+    value.set(100);
+    assert_eq!(100, value.get(), "Integer.set(100) produces value of 100.");
+}
+
+#[test]
+fn block_initialize()
+{
+    let value = Block::new(8);
+    assert_eq!(8, value.length(), "Block::new(8) has length of 8.");
+    assert_eq!(vec![0;8], value.get(), "Block::new(8) has value of 0.");
+}
+
+#[test]
+fn block_set_get()
+{
+    let mut value = Block::new(4);
+    value.set(vec![1, 2, 3, 4]);
+    assert_eq!(vec![1, 2, 3, 4], value.get(), "Block::set([1,2,3,4]) has value of [1,2,3,4].");
+}
+
+#[test]
+fn sequence_initialize()
+{
+    let value = Sequence::new();
+    assert_eq!(0, value.length(), "Sequence::new() has length 0.");
+}
+
+#[test]
+fn sequence_set_get_raw()
+{
+    let mut value = Sequence::new();
+    value.set_raw(vec![0, 1, 2, 3, 2, 1]);
+    assert_eq!(6, value.length(), "Sequence.set_raw([0,1,2,3,2,1]) has length 6.");
+    assert_eq!(vec![0,1,2,3,2,1], value.get_raw(), "Sequence.set_raw([0,1,2,3,2,1]) produces value [0,1,2,3,2,1].");
+}
+
+#[test]
+fn sequence_set_get_str()
+{
+    let mut value = Sequence::new();
+    value.set("hello");
+    assert_eq!(5, value.length(), "Sequence.set(hello) has length 5.");
+    assert_eq!(String::from("hello"), value.get(), "Sequence.set(hello) produces value hello.");
+}
+
+#[test]
+fn list_initialize()
+{
+    let list = List::new(natural());
+    assert_eq!(0, list.capacity(), "New list has capacity of 0.");
+    assert_eq!(0, list.length(), "New list has length of 0.");
+}
+
+#[test]
+fn list_from()
+{
+    let list = List::new(natural());
+    let mut list_ref = List::from(*list).unwrap();
+    list_ref.append(*Natural::with(10));
+
+    assert_eq!(1, list.length(), "List has length 1 after append to reference.");
+    assert_eq!(10, Natural::from(list.at(0)).unwrap().get());
+}
+
+#[test]
+fn list_with()
+{
+    let list = List::with(natural(), vec![
+        *Natural::with(5),
+        *Natural::with(10),
+        *Natural::with(15),
+        *Natural::with(20),
+    ]);
+    assert_eq!(4, list.length());
+    assert_eq!(15, Natural::from(list.at(2)).unwrap().get());
+}
+
+#[test]
+fn list_clear()
+{
+    let mut list = List::with(natural(), vec![
+        *Natural::with(33),
+        *Natural::with(66),
+        *Natural::with(99),
+    ]);
+    assert_eq!(3, list.length(), "List initialized with 3 elements has length of 3.");
+    list.clear();
+    assert_eq!(0, list.length(), "Cleared list has length of 0.");
+}
+
+#[test]
+fn list_insert()
+{
+
+}
+
+#[test]
+fn list_prepend()
+{
+    let mut list = List::with(natural(), vec![
+        *Natural::with(1000),
+        *Natural::with(2000),
+        *Natural::with(3000),
+    ]);
+    assert_eq!(3, list.length(), "List initialized with 3 elements has length of 3.");
+    list.prepend(*Natural::with(0));
+    assert_eq!(4, list.length(), "List of 3 elements has length of 4 after prepend.");
+    assert_eq!(0, Natural::from(list.at(0)).unwrap().get(), "First element in list has value 0.");
+    assert_eq!(1000, Natural::from(list.at(1)).unwrap().get(), "Second element in list has value 1000.");
+}
+
+#[test]
+fn list_append()
+{
+    let mut list = List::with(natural(), vec![
+        *Natural::with(1000),
+        *Natural::with(2000),
+        *Natural::with(3000),
+    ]);
+    assert_eq!(3, list.length(), "List initialized with 3 elements has length of 3.");
+    list.append(*Natural::with(4000));
+    assert_eq!(4, list.length(), "List of 3 elements has length of 4 after prepend.");
+    assert_eq!(3000, Natural::from(list.at(2)).unwrap().get(), "Third element in list has value 3000.");
+    assert_eq!(4000, Natural::from(list.at(3)).unwrap().get(), "Last element in list has value 4000.");}
+
+#[test]
+fn list_set()
+{
+    let mut list = List::with(natural(), vec![
+        *Natural::with(1),
+        *Natural::with(1),
+        *Natural::with(3),
+    ]);
+    assert_eq!(3, list.length(), "List initialized with 3 elements has length of 3.");
+    list.set(1, *Natural::with(2));
+    assert_eq!(2, Natural::from(list.at(1)).unwrap().get(), "Second element in list has value 2.");
+}
+
+#[test]
+fn list_remove()
+{
+    let mut list = List::with(natural(), vec![
+        *Natural::with(0),
+        *Natural::with(1),
+        *Natural::with(2),
+        *Natural::with(3),
+        *Natural::with(4),
+        *Natural::with(5),
+    ]);
+    assert_eq!(6, list.length(), "List initialized with 6 elements has length of 6.");
+    list.remove(5);
+    list.remove(0);
+    list.remove(2);
+    assert_eq!(3, list.length(), "List with 3/6 elements removed has length of 3.");
+    assert_eq!(1, Natural::from(list.at(0)).unwrap().get(), "First element in list is 1.");
+    assert_eq!(2, Natural::from(list.at(1)).unwrap().get(), "Second element in list is 2.");
+    assert_eq!(4, Natural::from(list.at(2)).unwrap().get(), "Last element in list is 4.");
+}
+
+#[test]
+fn list_reserve()
+{
+    let capacity :usize = 10;
+    let mut list = List::new(natural());
+    assert_eq!(0, list.capacity(), "List has initial capacity of 0.");
+    list.reserve(capacity);
+    assert_eq!(capacity, list.capacity(), "List has updated capacity.");
+}