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int example & testing out more int projections

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This commit is contained in:
Michael Sippel 2024-05-25 00:39:47 +02:00
parent 91e56d876d
commit 40a5da4512
Signed by: senvas
GPG key ID: F96CF119C34B64A6
13 changed files with 661 additions and 151 deletions
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1
Cargo.toml
View file

@ -5,5 +5,6 @@ members = [
"examples/tty-01-hello",
"examples/tty-02-digit",
"examples/tty-03-string",
"examples/tty-04-posint"
]

19
examples/tty-04-posint/Cargo.toml Normal file
View file

@ -0,0 +1,19 @@
[package]
name = "tty-04-posint"
version = "0.1.0"
edition = "2021"
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
[dependencies]
laddertypes = { path = "../../../lib-laddertypes" }
r3vi = { path = "../../../lib-r3vi" }
nested = { path = "../../lib-nested-core" }
nested-tty = { path = "../../lib-nested-tty" }
termion = "*"
cgmath = "*"
[dependencies.async-std]
version = "1.9.0"
features = ["unstable", "attributes"]

7
examples/tty-04-posint/README.md Normal file
View file

@ -0,0 +1,7 @@
# tty-04-posint
In the following example, a <List Char> editor
as before is used, but its data is morphed into
representing a positional integer which is then
projected into different radices and displayed
in different views on screen

208
examples/tty-04-posint/src/main.rs Normal file
View file

@ -0,0 +1,208 @@
//! In the following example, a <List Char> editor
//! as before is used, but its data is morphed into
//! representing a positional integer which is then
//! projected into different radices and displayed
//! in different views on screen
extern crate cgmath;
extern crate nested;
extern crate nested_tty;
extern crate r3vi;
extern crate termion;
use {
cgmath::Vector2,
nested::{
editors::{
ObjCommander
},
repr_tree::{Context, ReprTree, ReprTreeExt, ReprLeaf},
edit_tree::{EditTree}
},
nested_tty::{
DisplaySegment, TTYApplication,
TerminalCompositor, TerminalStyle, TerminalView,
TerminalAtom, TerminalEvent
},
r3vi::{
buffer::{singleton::*, vec::*},
view::{port::UpdateTask, list::*, sequence::*},
projection::*
},
std::sync::{Arc, RwLock},
};
#[async_std::main]
async fn main() {
/* setup context
*/
let ctx = Arc::new(RwLock::new(Context::new()));
nested::editors::char::init_ctx( ctx.clone() );
nested::editors::digit::init_ctx( ctx.clone() );
nested::editors::integer::init_ctx( ctx.clone() );
nested::editors::list::init_ctx( ctx.clone() );
nested_tty::setup_edittree_hook(&ctx);
/* Create a Representation-Tree of type <List <Digit 16>>
*/
let mut rt_digitlist = ReprTree::new_arc( Context::parse(&ctx, "<List <Digit 16>>") );
let mut rt_digitseq = ReprTree::new_arc( Context::parse(&ctx, "<Seq <Digit 16>>") );
rt_digitseq.insert_branch( rt_digitlist );
let mut rt_posint = ReprTree::new_arc(Context::parse(&ctx, "<PosInt 16 BigEndian>"));
rt_posint.insert_branch( rt_digitseq );
let mut rt_int = ReprTree::new_arc( Context::parse(&ctx, "ℕ") );
rt_int.insert_branch( rt_posint );
/* Setup an Editor for this ReprTree
* (this will add the representation <List <Digit 16>>~EditTree to the ReprTree)
*/
let rt_edittree_list = ctx.read().unwrap()
.setup_edittree(
ReprTree::descend(
&rt_int,
Context::parse(&ctx, "<PosInt 16 BigEndian>~<Seq~List <Digit 16>>")
).expect("cant descend reprtree"),
SingletonBuffer::new(0).get_port()
);
ctx.read().unwrap().morphisms.apply_morphism(
ReprTree::descend(&rt_int,
Context::parse(&ctx, "
<PosInt 16 BigEndian>
~<Seq <Digit 16>>
~<List <Digit 16>>
")
).expect("cant descend repr tree"),
&Context::parse(&ctx, "<List <Digit 16>>~EditTree"),
&Context::parse(&ctx, "<List <Digit 16>~Char>")
);
/*
* map seq of chars to seq of u64 digits
*/
let mut chars_view =
ReprTree::descend(
&rt_int,
Context::parse(&ctx, "<PosInt 16 BigEndian>~<Seq <Digit 16>>~<List <Digit 16>~Char>")
).expect("cant descend")
.read().unwrap()
.get_port::<dyn ListView<char>>()
.unwrap();
let mut digits_view = chars_view
.to_sequence()
.filter_map(
|digit_char|
/* TODO: call morphism
*/
match digit_char.to_digit(16) {
Some(d) => Some(d as usize),
None => None
}
);
rt_int.write().unwrap().insert_leaf(
vec![
Context::parse(&ctx, "<PosInt 16 BigEndian>"),
Context::parse(&ctx, "<Seq <Digit 16>>"),
Context::parse(&ctx, "<Seq ℤ_2^64>"),
Context::parse(&ctx, "<Seq machine.UInt64>")
].into_iter(),
nested::repr_tree::ReprLeaf::from_view( digits_view.clone() )
);
//
//
ctx.read().unwrap().morphisms.apply_morphism(
rt_int.clone(),
&Context::parse(&ctx, "ℕ ~ <PosInt 16 BigEndian> ~ <Seq <Digit 16>~ℤ_2^64~machine.UInt64>"),
&Context::parse(&ctx, "ℕ ~ <PosInt 16 LittleEndian> ~ <Seq <Digit 16>~ℤ_2^64~machine.UInt64>")
);
ctx.read().unwrap().morphisms.apply_morphism(
rt_int.clone(),
&Context::parse(&ctx, "ℕ ~ <PosInt 16 LittleEndian> ~ <Seq <Digit 16>~ℤ_2^64~machine.UInt64>"),
&Context::parse(&ctx, "ℕ ~ <PosInt 10 LittleEndian> ~ <Seq <Digit 10>~ℤ_2^64~machine.UInt64>")
);
ctx.read().unwrap().morphisms.apply_morphism(
rt_int.clone(),
&Context::parse(&ctx, "ℕ ~ <PosInt 10 LittleEndian> ~ <Seq <Digit 10>~ℤ_2^64~machine.UInt64>"),
&Context::parse(&ctx, "ℕ ~ <PosInt 10 BigEndian> ~ <Seq <Digit 10>~ℤ_2^64~machine.UInt64>")
);
let dec_digits_view = ReprTree::descend(&rt_int,
Context::parse(&ctx, "
<PosInt 10 BigEndian>
~< Seq <Digit 10>~ℤ_2^64~machine.UInt64 >
")
).expect("cant descend repr tree")
.read().unwrap()
.get_port::<dyn SequenceView<Item = usize>>().unwrap()
.map(
/* TODO: call morphism
*/
|digit| {
TerminalAtom::from(
char::from_digit(*digit as u32, 10)
)
}
)
.to_grid_horizontal();
let hex_digits_view =
ReprTree::descend(
&rt_int,
Context::parse(&ctx, "
<PosInt 16 BigEndian>
~<Seq <Digit 16> >
~<List <Digit 16>
~Char>")
).expect("cant descend")
.read().unwrap()
.get_port::<dyn ListView<char>>().unwrap()
.to_sequence()
.to_grid_horizontal()
.map_item(|_pt,c| TerminalAtom::new(*c, TerminalStyle::fg_color((30,90,200))));
/* setup terminal
*/
let app = TTYApplication::new({
let edittree_list = rt_edittree_list.clone();
/* event handler
*/
let ctx = ctx.clone();
move |ev| {
edittree_list.get().send_cmd_obj(ev.to_repr_tree(&ctx));
}
});
/* Setup the compositor to serve as root-view
* by routing it to the `app.port` Viewport,
* so it will be displayed on TTY-output.
*/
let compositor = TerminalCompositor::new(app.port.inner());
/* Now add some views to our compositor
*/
{
let mut comp = compositor.write().unwrap();
let label_str = ctx.read().unwrap().type_term_to_str(&rt_int.read().unwrap().get_type());
comp.push(
nested_tty::make_label(&label_str)
.map_item(|_pt, atom| atom.add_style_front(TerminalStyle::fg_color((90,90,90))))
.offset(Vector2::new(1,1)));
comp.push(rt_edittree_list.get()
.display_view()
.offset(Vector2::new(3,2)));
comp.push(dec_digits_view.offset(Vector2::new(3,4)));
comp.push(hex_digits_view.offset(Vector2::new(3,5)));
}
/* write the changes in the view of `term_port` to the terminal
*/
app.show().await.expect("output error!");
}

1
lib-nested-core/src/editors/char/mod.rs
View file

@ -36,6 +36,7 @@ pub fn init_ctx( ctx: Arc<RwLock<Context>> ) {
if let Some(buf) = rt.singleton_buffer::<char>() {
// buffer already exists
} else {
// create char buffer
rt.insert_leaf(
vec![].into_iter(),
ReprLeaf::from_singleton_buffer(

10
lib-nested-core/src/editors/digit/ctx.rs
View file

@ -80,7 +80,7 @@ pub fn init_ctx( ctx: Arc<RwLock<Context>> ) {
let morphtype =
crate::repr_tree::MorphismType {
src_type: Context::parse(&ctx, "<Digit Radix>~Char"),
dst_type: Context::parse(&ctx, "<Digit Radix>~ℤ_256~machine::UInt8")
dst_type: Context::parse(&ctx, "<Digit Radix>~ℤ_2^64~machine.UInt64")
};
ctx.write().unwrap()
@ -124,7 +124,7 @@ pub fn init_ctx( ctx: Arc<RwLock<Context>> ) {
let morphtype =
crate::repr_tree::MorphismType {
src_type: Context::parse(&ctx, "<Digit Radix>~ℤ_256~machine::UInt8"),
src_type: Context::parse(&ctx, "<Digit Radix>~ℤ_2^64~machine.UInt64"),
dst_type: Context::parse(&ctx, "<Digit Radix>~Char")
};
@ -144,10 +144,10 @@ pub fn init_ctx( ctx: Arc<RwLock<Context>> ) {
/* insert projected view into ReprTree
*/
let char_view =
rt.descend(Context::parse(&ctx, "ℤ_256~machine::UInt8"))
rt.descend(Context::parse(&ctx, "ℤ_2^64~machine::UInt64"))
.unwrap()
.view_u8()
.map(move |digit| char::from_digit(digit as u32, radix).unwrap_or('?'));
.view_usize()
.map(move |digit| char::from_digit((digit%radix as usize) as u32, radix).unwrap_or('?'));
rt.write().unwrap().attach_leaf_to::<dyn SingletonView<Item = char>>(
Context::parse(&ctx, "Char").get_lnf_vec().into_iter(),

5
lib-nested-core/src/editors/digit/editor.rs
View file

@ -73,6 +73,11 @@ impl DigitEditor {
pub fn get_type(&self) -> TypeTerm {
TypeTerm::TypeID(self.ctx.read().unwrap().get_typeid("Digit").unwrap())
}
pub fn get_char(&self) -> char {
self.data.get()
}
/*
pub fn get_data(&self) -> Arc<RwLock<ReprTree>> {
ReprTree::ascend(

212
lib-nested-core/src/editors/integer/ctx.rs
View file

@ -5,8 +5,7 @@ use {
},
laddertypes::{TypeTerm},
crate::{
repr_tree::{Context},
repr_tree::{MorphismType},
repr_tree::{ReprTree, ReprLeaf, Context, MorphismType},
editors::{
list::*,
integer::*
@ -16,97 +15,142 @@ use {
};
pub fn init_ctx(ctx: Arc<RwLock<Context>>) {
/*
ctx.add_list_typename("PosInt".into());
let pattern = MorphismTypePattern {
src_tyid: ctx.get_typeid("List"),
dst_tyid: ctx.get_typeid("PosInt").unwrap()
// TODO: proper scoping
// ctx.write().unwrap().add_varname("Radix");
ctx.write().unwrap().add_varname("SrcRadix");
ctx.write().unwrap().add_varname("DstRadix");
let morphism_type = MorphismType {
src_type: Context::parse(&ctx, "ℕ ~ <PosInt Radix BigEndian> ~ <Seq <Digit SrcRadix>~ℤ_2^64~machine.UInt64>"),
dst_type: Context::parse(&ctx, "ℕ ~ <PosInt Radix LittleEndian> ~ <Seq <Digit DstRadix>~ℤ_2^64~machine.UInt64>")
};
ctx.add_morphism(pattern,
Arc::new(
|mut node, dst_type| {
// todo: check src_type parameter to be ( Digit radix )
match dst_type {
TypeTerm::App(args) => {
if args.len() > 1 {
match args[1] {
TypeTerm::Num(_radix) => {
/* FIXME
PTYListController::for_node(
&mut node,
Some(','),
None,
);
ctx.write().unwrap().morphisms.add_morphism(
morphism_type,
{
let ctx = ctx.clone();
move |src_rt, σ| {
let src_digits = ReprTree::descend(
&src_rt,
Context::parse(&ctx, "
<PosInt Radix BigEndian>
~<Seq <Digit Radix>~ℤ_2^64~machine.UInt64 >
")
.apply_substitution(&|k|σ.get(k).cloned()).clone()
).expect("cant descend")
.read().unwrap()
.view_seq::< usize >();
PTYListStyle::for_node(
&mut node,
("0d", "", "")
);
*/
Some(node)
},
_ => None
}
} else {
None
}
}
_ => None
}
src_rt.write().unwrap().insert_leaf(
vec![
Context::parse(&ctx, "<PosInt Radix LittleEndian>")
.apply_substitution(&|k|σ.get(k).cloned()).clone(),
Context::parse(&ctx, "<Seq <Digit Radix>>")
.apply_substitution(&|k|σ.get(k).cloned()).clone(),
Context::parse(&ctx, "<Seq ℤ_2^64>"),
Context::parse(&ctx, "<Seq machine.UInt64>")
].into_iter(),
ReprLeaf::from_view( src_digits.reverse() )
);
}
)
}
);
ctx.add_node_ctor(
"PosInt", Arc::new(
|ctx0: Arc<RwLock<Context>>, dst_typ: TypeTerm, depth: OuterViewPort<dyn SingletonView<Item = usize>>| {
match dst_typ.clone() {
TypeTerm::App(args) => {
if args.len() > 1 {
match args[1] {
TypeTerm::Num(radix) => {
let ctx = ctx0.read().unwrap();
let mut node = Context::make_node(
&ctx0,
TypeTerm::App(vec![
TypeTerm::TypeID(ctx.get_typeid("List").unwrap()),
TypeTerm::TypeID(
ctx.get_typeid("Digit").unwrap()
)
.num_arg(radix)
.clone()
.into()
]),
depth.map(|d| d+1)
).unwrap();
node = node.morph(dst_typ);
Some(node)
}
_ => None
}
} else {
None
}
}
_ => None
}
let morphism_type = MorphismType {
src_type: Context::parse(&ctx, "ℕ ~ <PosInt Radix LittleEndian> ~ <Seq <Digit SrcRadix>~ℤ_2^64~machine.UInt64>"),
dst_type: Context::parse(&ctx, "ℕ ~ <PosInt Radix BigEndian> ~ <Seq <Digit DstRadix>~ℤ_2^64~machine.UInt64>")
};
ctx.write().unwrap().morphisms.add_morphism(
morphism_type,
{
let ctx = ctx.clone();
move |src_rt, σ| {
let src_digits = ReprTree::descend(
&src_rt,
Context::parse(&ctx, "
<PosInt Radix LittleEndian>
~<Seq <Digit Radix>~ℤ_2^64~machine.UInt64 >
")
.apply_substitution(&|k|σ.get(k).cloned()).clone()
).expect("cant descend")
.read().unwrap()
.view_seq::< usize >();
src_rt.write().unwrap().insert_leaf(
vec![
Context::parse(&ctx, "<PosInt Radix BigEndian>")
.apply_substitution(&|k|σ.get(k).cloned()).clone(),
Context::parse(&ctx, "<Seq <Digit Radix>>")
.apply_substitution(&|k|σ.get(k).cloned()).clone(),
Context::parse(&ctx, "<Seq ℤ_2^64>"),
Context::parse(&ctx, "<Seq machine.UInt64>")
].into_iter(),
ReprLeaf::from_view( src_digits.reverse() )
);
}
)
}
);
let morphism_type = MorphismType {
src_type: Context::parse(&ctx, "ℕ ~ <PosInt SrcRadix LittleEndian> ~ <Seq <Digit SrcRadix>~ℤ_2^64~machine.UInt64>"),
dst_type: Context::parse(&ctx, "ℕ ~ <PosInt DstRadix LittleEndian> ~ <Seq <Digit DstRadix>~ℤ_2^64~machine.UInt64>")
};
ctx.write().unwrap().morphisms.add_morphism(
morphism_type,
{
let ctx = ctx.clone();
move |src_rt, σ| {
let src_radix = match σ.get(&laddertypes::TypeID::Var(
ctx.read().unwrap().get_var_typeid("SrcRadix").unwrap()
)) {
Some(laddertypes::TypeTerm::Num(n)) => *n as usize,
_ => 0
};
let dst_radix = match σ.get(&laddertypes::TypeID::Var(
ctx.read().unwrap().get_var_typeid("DstRadix").unwrap()
)) {
Some(laddertypes::TypeTerm::Num(n)) => *n as usize,
_ => 0
};
let src_digits_rt = ReprTree::descend(
src_rt,
Context::parse(&ctx, "
<PosInt SrcRadix LittleEndian>
~ <Seq <Digit SrcRadix> ~ ℤ_2^64 ~ machine.UInt64 >"
).apply_substitution(&|k|σ.get(k).cloned()).clone()
).expect("cant descend repr tree");
let dst_digits_port =
src_digits_rt.read().unwrap()
.view_seq::<usize>()
.to_positional_uint( src_radix )
.transform_radix( dst_radix )
;
src_rt.write().unwrap()
.insert_leaf(
vec![
Context::parse(&ctx, "<PosInt DstRadix LittleEndian>").apply_substitution(&|k|σ.get(k).cloned()).clone(),
Context::parse(&ctx, "<Seq <Digit DstRadix>>").apply_substitution(&|k|σ.get(k).cloned()).clone(),
Context::parse(&ctx, "<Seq ℤ_2^64>"),
Context::parse(&ctx, "<Seq machine.UInt64>"),
].into_iter(),
ReprLeaf::from_view(dst_digits_port)
);
}
}
);
*/
/*
ctx.add_typename("Date".into());
ctx.add_typename("ISO-8601".into());
ctx.add_typename("TimeSince".into());
ctx.add_typename("UnixEpoch".into());
ctx.add_typename("AnnoDomini".into());
ctx.add_typename("Epoch".into());
ctx.add_typename("Duration".into());
ctx.add_typename("Seconds".into());
ctx.add_typename("ℕ".into());
*/
}

136
lib-nested-core/src/editors/integer/mod.rs
View file

@ -10,3 +10,139 @@ pub use {
ctx::init_ctx
};
//<<<<>>>><<>><><<>><<<*>>><<>><><<>><<<<>>>>
use {
r3vi::{
view::{
View, ViewPort, OuterViewPort,
Observer,
ObserverBroadcast,
sequence::*
}
},
crate::{
editors::integer::radix::{
PosIntProjections
}
},
std::sync::{Arc, RwLock}
};
pub trait PositionalUInt : SequenceView<Item = usize> {
fn get_radix(&self) -> usize;
fn get_value(&self) -> usize {
let mut val = 0;
let mut r = 1;
for i in 0..self.len().unwrap_or(0) {
val += r * self.get(&i).unwrap();
r *= self.get_radix();
}
val
}
}
impl<V: PositionalUInt> PositionalUInt for RwLock<V> {
fn get_radix(&self) -> usize {
self.read().unwrap().get_radix()
}
}
struct PosUIntFromDigits {
radix: usize,
src_digits: Option<Arc<dyn SequenceView<Item = usize>>>,
cast: Arc<RwLock<ObserverBroadcast<dyn PositionalUInt>>>
}
impl View for PosUIntFromDigits {
type Msg = usize;
}
impl SequenceView for PosUIntFromDigits {
type Item = usize;
fn get(&self, idx: &usize) -> Option<usize> {
self.src_digits.get(idx)
}
fn len(&self) -> Option<usize> {
self.src_digits.len()
}
}
impl PositionalUInt for PosUIntFromDigits {
fn get_radix(&self) -> usize {
self.radix
}
}
impl Observer<dyn SequenceView<Item = usize>> for PosUIntFromDigits {
fn reset(&mut self, new_src: Option<Arc<dyn SequenceView<Item = usize>>>) {
self.src_digits = new_src;
// self.cast.write().unwrap().notify(0);
}
fn notify(&mut self, idx: &usize) {
self.cast.write().unwrap().notify(idx);
}
}
//<<<<>>>><<>><><<>><<<*>>><<>><><<>><<<<>>>>
pub trait DigitSeqProjection {
fn to_positional_uint(&self, radix: usize) -> OuterViewPort<dyn PositionalUInt>;
}
impl DigitSeqProjection for OuterViewPort<dyn SequenceView<Item = usize>> {
fn to_positional_uint(&self, radix: usize) -> OuterViewPort<dyn PositionalUInt> {
let port = ViewPort::new();
port.add_update_hook(Arc::new(self.0.clone()));
let proj = Arc::new(RwLock::new(PosUIntFromDigits {
radix,
src_digits: None,
cast: port.inner().get_broadcast()
}));
self.add_observer(proj.clone());
port.set_view(Some(proj));
port.into_outer()
}
}
//<<<<>>>><<>><><<>><<<*>>><<>><><<>><<<<>>>>
struct PosUIntToDigits {
src: Option<Arc<dyn PositionalUInt>>,
cast: Arc<RwLock<ObserverBroadcast<dyn SequenceView<Item = usize>>>>
}
impl View for PosUIntToDigits {
type Msg = usize;
}
impl SequenceView for PosUIntToDigits {
type Item = usize;
fn get(&self, idx: &usize) -> Option<usize> {
self.src.get(idx)
}
fn len(&self) -> Option<usize> {
self.src.len()
}
}
impl Observer<dyn PositionalUInt> for PosUIntToDigits {
fn reset(&mut self, view: Option<Arc<dyn PositionalUInt>>) {
self.src = view;
// self.cast.notify_all();
}
fn notify(&mut self, idx: &usize) {
self.cast.notify(idx);
}
}

167
lib-nested-core/src/editors/integer/radix.rs
View file

@ -1,69 +1,127 @@
use {
r3vi::{
view::{
View, ViewPort,
InnerViewPort, Observer, OuterViewPort,
ObserverBroadcast,
sequence::*,
list::*
},
buffer::{vec::*}
},
crate::{
editors::integer::{
PositionalUInt
},
repr_tree::{ReprTree, ReprLeaf}
},
std::sync::{Arc, RwLock},
};
//<<<<>>>><<>><><<>><<<*>>><<>><><<>><<<<>>>>
pub trait PosIntProjections {
fn transform_radix(&self, dst_radix: usize) -> OuterViewPort<dyn SequenceView<Item = usize>>;
// fn to_digits(&self) -> OuterViewPort<dyn SequenceView<Item = usize>>;
}
impl PosIntProjections for OuterViewPort<dyn PositionalUInt> {
fn transform_radix(&self, dst_radix: usize) -> OuterViewPort<dyn SequenceView<Item = usize>> {
let port = ViewPort::<dyn SequenceView<Item = usize>>::new();
port.add_update_hook(Arc::new(self.0.clone()));
// let mut vec_port = ViewPort::new();
let proj = Arc::new(RwLock::new(RadixProjection {
src: None,
dst_radix,
dst_digits: VecBuffer::new(),
cast: port.inner().get_broadcast()
}));
self.add_observer(proj.clone());
port.set_view(Some(proj as Arc<dyn SequenceView<Item = usize>>));
port.into_outer()
}
/*
fn to_digits(&self) -> OuterViewPort<dyn SequenceView<Item = usize>> {
let port = ViewPort::new();
port.add_update_hook(Arc::new(self.0.clone()));
let proj = Arc::new(RwLock::new(PosUIntToDigits {
src: None,
cast: port.inner().get_broadcast()
}));
self.add_observer(proj.clone());
port.inner().set_view(Some(proj));
port.into_outer()
}
*/
}
//<<<<>>>><<>><><<>><<<*>>><<>><><<>><<<<>>>>
pub struct RadixProjection {
src_radix: usize,
src: Option<Arc<dyn PositionalUInt>>,
dst_radix: usize,
src_digits: Option<Arc<dyn SequenceView<Item = usize>>>,
dst_digits: RwLock<VecBuffer<usize>>,
dst_digits: VecBuffer<usize>,
cast: Arc<RwLock<ObserverBroadcast<dyn SequenceView<Item = usize>>>>
}
impl View for RadixProjection {
type Msg = usize;
}
impl SequenceView for RadixProjection {
type Item = usize;
fn get(&self, idx: &usize) -> Option<usize> {
if *idx < self.dst_digits.len() {
Some(self.dst_digits.get(*idx))
} else {
None
}
}
fn len(&self) -> Option<usize> {
Some(self.dst_digits.len())
}
}
impl PositionalUInt for RadixProjection {
fn get_radix(&self) -> usize {
self.dst_radix
}
}
impl Observer< dyn PositionalUInt > for RadixProjection {
fn reset(&mut self, view: Option<Arc<dyn PositionalUInt>>) {
self.src = view;
self.update();
}
fn notify(&mut self, idx: &usize) {
self.update();
// self.update_digit(idx)
}
}
impl RadixProjection {
pub fn new(
// static parameters
//---
src_radix: usize,
dst_radix: usize,
//---
/// recalculate everything
fn update(&mut self) {
// let mut dst = self.dst_digits;
let old_len = self.dst_digits.len();
self.dst_digits.clear();
// dynamic parameters
//---
// input
src_digits: OuterViewPort<dyn SequenceView<Item = usize>>,
// output
dst_digits: InnerViewPort<RwLock<Vec<usize>>>,
//---
) -> Arc<RwLock<Self>> {
dst_digits.0.add_update_hook(Arc::new(src_digits.0.clone()));
let proj = Arc::new(RwLock::new(RadixProjection {
src_radix,
dst_radix,
src_digits: None,
dst_digits: RwLock::new(VecBuffer::with_port(dst_digits)),
}));
src_digits.add_observer(proj.clone());
proj
}
fn machine_int(&self) -> usize {
let mut val = 0;
let mut r = 1;
for i in 0..self.src_digits.len().unwrap_or(0) {
val += r * self.src_digits.get(&i).unwrap();
r *= self.src_radix;
if let Some(src) = self.src.as_ref() {
let mut val = src.get_value();
while val > 0 {
self.dst_digits.push(val % self.dst_radix);
val /= self.dst_radix;
}
}
val
}
// recalculate everything
fn update(&self) {
let mut dst = self.dst_digits.write().unwrap();
dst.clear();
let mut val = self.machine_int();
while val > 0 {
dst.push(val % self.dst_radix);
val /= self.dst_radix;
let new_len = self.dst_digits.len();
for i in 0 .. usize::max(old_len, new_len) {
self.cast.write().unwrap().notify(&i);
}
}
@ -84,18 +142,3 @@ impl RadixProjection {
}
}
impl Observer<dyn SequenceView<Item = usize>> for RadixProjection {
fn reset(&mut self, view: Option<Arc<dyn SequenceView<Item = usize>>>) {
self.src_digits = view;
}
fn notify(&mut self, _idx: &usize) {
// todo:
// src digit i changed.
// which dst-digits does it affect?
// update dst-digit j:
// ...but for now the easy way
self.update();
}
}

35
lib-nested-core/src/editors/list/ctx.rs
View file

@ -92,6 +92,41 @@ pub fn init_ctx(ctx: Arc<RwLock<Context>>) {
}
);
let mt = crate::repr_tree::MorphismType {
src_type: Context::parse(&ctx, "<List <Digit 16>>~EditTree"),
dst_type: Context::parse(&ctx, "<List <Digit 16>~Char>")
};
ctx.write().unwrap().morphisms.add_morphism(
mt,
{
let ctx = ctx.clone();
move |src_rt, σ| {
let edittree =
src_rt
.descend(Context::parse(&ctx, "EditTree")).unwrap()
.singleton_buffer::<EditTree>();
let list_edit = edittree.get().get_edit::< ListEditor >().unwrap();
let edittree_items = list_edit.read().unwrap().data.get_port().to_list();
src_rt.write().unwrap().insert_leaf(
vec![ Context::parse(&ctx, "<List Char>") ].into_iter(),
ReprLeaf::from_view(
edittree_items
.map(
|edittree_char|
edittree_char
.read().unwrap()
.get_edit::<crate::editors::digit::editor::DigitEditor>().unwrap()
.read().unwrap()
.get_char()
)
)
);
}
}
);
let mt = crate::repr_tree::MorphismType {
src_type: Context::parse(&ctx, "<List Char>"),

2
lib-nested-core/src/lib.rs
View file

@ -1,4 +1,6 @@
#![feature(trait_upcasting)]
pub mod repr_tree;
pub mod edit_tree;
pub mod editors;

9
lib-nested-core/src/repr_tree/mod.rs
View file

@ -396,6 +396,10 @@ impl ReprTree {
pub fn view_u64(&self) -> OuterViewPort<dyn SingletonView<Item = u64>> {
self.get_port::<dyn SingletonView<Item = u64>>().expect("no u64-view available")
}
pub fn view_usize(&self) -> OuterViewPort<dyn SingletonView<Item = usize>> {
self.get_port::<dyn SingletonView<Item = usize>>().expect("no usize-view available")
}
}
@ -412,6 +416,7 @@ pub trait ReprTreeExt {
fn view_char(&self) -> OuterViewPort<dyn SingletonView<Item = char>>;
fn view_u8(&self) -> OuterViewPort<dyn SingletonView<Item = u8>>;
fn view_u64(&self) -> OuterViewPort<dyn SingletonView<Item = u64>>;
fn view_usize(&self) -> OuterViewPort<dyn SingletonView<Item = usize>>;
fn singleton_buffer<T: Clone + Send + Sync + 'static>(&self) -> SingletonBuffer<T>;
fn vec_buffer<T: Clone + Send + Sync + 'static>(&self) -> VecBuffer<T>;
@ -446,6 +451,10 @@ impl ReprTreeExt for Arc<RwLock<ReprTree>> {
self.read().unwrap().view_u64()
}
fn view_usize(&self) -> OuterViewPort<dyn SingletonView<Item = usize>> {
self.read().unwrap().view_usize()
}
fn singleton_buffer<T: Clone + Send + Sync + 'static>(&self) -> SingletonBuffer<T> {
self.write().unwrap().singleton_buffer::<T>().expect("")
}