Implementing compiler.

# Conflicts:
#	Cargo.lock
#	Cargo.toml
#	src/lang.rs

.gitignore

@@ -0,0 +1 @@
+target

Cargo.toml

@@ -19,7 +19,6 @@ log = "0.4"
 wgpu = "29.0.3"
 pollster = "0.4.0"
 console_error_panic_hook = "0.1.7"
-parse = { path = "./parse" }
 
 [target.'cfg(target_arch = "wasm32")'.dependencies]
 console_error_panic_hook = "0.1.6"

src/assets/script.lua

@@ -0,0 +1,12 @@
+local two
+do
+    local one
+    if something then
+        local three
+        print(something)
+    end
+    local four
+    if something2 then
+
+    end
+end

src/engine.rs

@@ -0,0 +1,478 @@
+// Credit of most code to https://sotrh.github.io/learn-wgpu/ since I'm not familiar with wgpu
+use std::sync::Arc;
+
+#[cfg(target_arch = "wasm32")]
+use wasm_bindgen::prelude::*;
+use winit::dpi::PhysicalPosition;
+#[cfg(target_arch = "wasm32")]
+use winit::platform::web::EventLoopExtWebSys;
+use winit::{
+  application::ApplicationHandler,
+  event::*,
+  event_loop::{ActiveEventLoop, EventLoop},
+  keyboard::{KeyCode, PhysicalKey},
+  window::Window,
+};
+
+// This will store the state of our game
+pub struct State {
+  surface: wgpu::Surface<'static>,
+  device: wgpu::Device,
+  queue: wgpu::Queue,
+  config: wgpu::SurfaceConfiguration,
+  is_surface_configured: bool,
+  window: Arc<Window>,
+  render_pipeline1: wgpu::RenderPipeline,
+  render_pipeline2: wgpu::RenderPipeline,
+  other_pipeline: bool,
+  sky: wgpu::Color,
+}
+
+impl State {
+  // We don't need this to be async right now,
+  // but we will in the next tutorial
+  pub async fn new(window: Arc<Window>) -> anyhow::Result<Self> {
+    let size = window.inner_size();
+
+    // The instance is a handle to our GPU
+    // BackendBit::PRIMARY => Vulkan + Metal + DX12 + Browser WebGPU
+    let instance = wgpu::Instance::new(wgpu::InstanceDescriptor {
+      #[cfg(not(target_arch = "wasm32"))]
+      backends: wgpu::Backends::PRIMARY,
+      #[cfg(target_arch = "wasm32")]
+      backends: wgpu::Backends::GL,
+      flags: Default::default(),
+      memory_budget_thresholds: Default::default(),
+      backend_options: Default::default(),
+      display: None,
+    });
+
+    let surface = instance.create_surface(window.clone()).unwrap();
+
+    let adapter = instance
+      .request_adapter(&wgpu::RequestAdapterOptions {
+        power_preference: wgpu::PowerPreference::default(),
+        compatible_surface: Some(&surface),
+        force_fallback_adapter: false,
+      })
+      .await?;
+
+    let (device, queue) = adapter
+      .request_device(&wgpu::DeviceDescriptor {
+        label: None,
+        required_features: wgpu::Features::empty(),
+        experimental_features: wgpu::ExperimentalFeatures::disabled(),
+        // WebGL doesn't support all of wgpu's features, so if
+        // we're building for the web we'll have to disable some.
+        required_limits: if cfg!(target_arch = "wasm32") {
+          wgpu::Limits::downlevel_webgl2_defaults()
+        } else {
+          wgpu::Limits::default()
+        },
+        memory_hints: Default::default(),
+        trace: wgpu::Trace::Off,
+      })
+      .await?;
+
+    let surface_caps = surface.get_capabilities(&adapter);
+    // Shader code in this tutorial assumes an sRGB surface texture. Using a different
+    // one will result in all the colors coming out darker. If you want to support non
+    // sRGB surfaces, you'll need to account for that when drawing to the frame.
+    let surface_format = surface_caps
+      .formats
+      .iter()
+      .find(|f| f.is_srgb())
+      .copied()
+      .unwrap_or(surface_caps.formats[0]);
+    let config = wgpu::SurfaceConfiguration {
+      usage: wgpu::TextureUsages::RENDER_ATTACHMENT,
+      format: surface_format,
+      width: size.width,
+      height: size.height,
+      present_mode: surface_caps.present_modes[0],
+      alpha_mode: surface_caps.alpha_modes[0],
+      view_formats: vec![],
+      desired_maximum_frame_latency: 2,
+    };
+
+    let shader1 = device.create_shader_module(wgpu::include_wgsl!("assets/shader.wgsl"));
+
+    let render_pipeline_layout1 =
+      device.create_pipeline_layout(&wgpu::PipelineLayoutDescriptor {
+        label: Some("Render Pipeline Layout"),
+        bind_group_layouts: &[],
+        immediate_size: 0,
+      });
+
+    let render_pipeline1 = device.create_render_pipeline(&wgpu::RenderPipelineDescriptor {
+      label: Some("Render Pipeline"),
+      layout: Some(&render_pipeline_layout1),
+      vertex: wgpu::VertexState {
+        module: &shader1,
+        entry_point: Some("vs_main"), // 1.
+        buffers: &[],                 // 2.
+        compilation_options: wgpu::PipelineCompilationOptions::default(),
+      },
+      fragment: Some(wgpu::FragmentState {
+        // 3.
+        module: &shader1,
+        entry_point: Some("fs_main"),
+        targets: &[Some(wgpu::ColorTargetState {
+          // 4.
+          format: config.format,
+          blend: Some(wgpu::BlendState::REPLACE),
+          write_mask: wgpu::ColorWrites::ALL,
+        })],
+        compilation_options: wgpu::PipelineCompilationOptions::default(),
+      }),
+      primitive: wgpu::PrimitiveState {
+        topology: wgpu::PrimitiveTopology::TriangleList, // 1.
+        strip_index_format: None,
+        front_face: wgpu::FrontFace::Ccw, // 2.
+        cull_mode: Some(wgpu::Face::Back),
+        // Setting this to anything other than Fill requires Features::NON_FILL_POLYGON_MODE
+        polygon_mode: wgpu::PolygonMode::Fill,
+        // Requires Features::DEPTH_CLIP_CONTROL
+        unclipped_depth: false,
+        // Requires Features::CONSERVATIVE_RASTERIZATION
+        conservative: false,
+      },
+      depth_stencil: None, // 1.
+      multisample: wgpu::MultisampleState {
+        count: 1,                         // 2.
+        mask: !0,                         // 3.
+        alpha_to_coverage_enabled: false, // 4.
+      },
+      multiview_mask: None, // 5.
+      cache: None,          // 6.
+    });
+
+    let shader2 = device.create_shader_module(wgpu::include_wgsl!("assets/shader2.wgsl"));
+
+    let render_pipeline_layout2 =
+      device.create_pipeline_layout(&wgpu::PipelineLayoutDescriptor {
+        label: Some("Render Pipeline Layout"),
+        bind_group_layouts: &[],
+        immediate_size: 0,
+      });
+
+    let render_pipeline2 = device.create_render_pipeline(&wgpu::RenderPipelineDescriptor {
+      label: Some("Render Pipeline"),
+      layout: Some(&render_pipeline_layout2),
+      vertex: wgpu::VertexState {
+        module: &shader2,
+        entry_point: Some("vs_main"), // 1.
+        buffers: &[],                 // 2.
+        compilation_options: wgpu::PipelineCompilationOptions::default(),
+      },
+      fragment: Some(wgpu::FragmentState {
+        // 3.
+        module: &shader2,
+        entry_point: Some("fs_main"),
+        targets: &[Some(wgpu::ColorTargetState {
+          // 4.
+          format: config.format,
+          blend: Some(wgpu::BlendState::REPLACE),
+          write_mask: wgpu::ColorWrites::ALL,
+        })],
+        compilation_options: wgpu::PipelineCompilationOptions::default(),
+      }),
+      primitive: wgpu::PrimitiveState {
+        topology: wgpu::PrimitiveTopology::TriangleList, // 1.
+        strip_index_format: None,
+        front_face: wgpu::FrontFace::Ccw, // 2.
+        cull_mode: Some(wgpu::Face::Back),
+        // Setting this to anything other than Fill requires Features::NON_FILL_POLYGON_MODE
+        polygon_mode: wgpu::PolygonMode::Fill,
+        // Requires Features::DEPTH_CLIP_CONTROL
+        unclipped_depth: false,
+        // Requires Features::CONSERVATIVE_RASTERIZATION
+        conservative: false,
+      },
+      depth_stencil: None, // 1.
+      multisample: wgpu::MultisampleState {
+        count: 1,                         // 2.
+        mask: !0,                         // 3.
+        alpha_to_coverage_enabled: false, // 4.
+      },
+      multiview_mask: None, // 5.
+      cache: None,          // 6.
+    });
+
+    Ok(Self {
+      surface,
+      device,
+      queue,
+      config,
+      is_surface_configured: false,
+      window,
+      render_pipeline1,
+      render_pipeline2,
+      other_pipeline: false,
+      sky: wgpu::Color {
+        r: 0.1,
+        g: 0.2,
+        b: 0.3,
+        a: 1.0,
+      },
+    })
+  }
+
+  pub fn resize(&mut self, width: u32, height: u32) {
+    if width > 0 && height > 0 {
+      let max = 2048;
+      self.config.width = width.min(max);
+      self.config.height = height.min(max);
+      self.surface.configure(&self.device, &self.config);
+      self.is_surface_configured = true;
+    }
+  }
+
+  fn update(&mut self) {
+    // ...
+  }
+
+  fn render(&mut self) -> anyhow::Result<()> {
+    self.window.request_redraw();
+
+    // We can't render unless the surface is configured
+    if !self.is_surface_configured {
+      return Ok(());
+    }
+
+    let output = match self.surface.get_current_texture() {
+      wgpu::CurrentSurfaceTexture::Success(surface_texture) => surface_texture,
+      wgpu::CurrentSurfaceTexture::Suboptimal(surface_texture) => {
+        self.surface.configure(&self.device, &self.config);
+        surface_texture
+      }
+      wgpu::CurrentSurfaceTexture::Timeout
+      | wgpu::CurrentSurfaceTexture::Occluded
+      | wgpu::CurrentSurfaceTexture::Validation => {
+        // Skip this frame
+        return Ok(());
+      }
+      wgpu::CurrentSurfaceTexture::Outdated => {
+        self.surface.configure(&self.device, &self.config);
+        return Ok(());
+      }
+      wgpu::CurrentSurfaceTexture::Lost => {
+        // You could recreate the devices and all resources
+        // created with it here, but we'll just bail
+        anyhow::bail!("Lost device");
+      }
+    };
+    let view = output
+      .texture
+      .create_view(&wgpu::TextureViewDescriptor::default());
+    let mut encoder = self
+      .device
+      .create_command_encoder(&wgpu::CommandEncoderDescriptor {
+        label: Some("Render Encoder"),
+      });
+    {
+      let mut render_pass = encoder.begin_render_pass(&wgpu::RenderPassDescriptor {
+        label: Some("Render Pass"),
+        color_attachments: &[Some(wgpu::RenderPassColorAttachment {
+          view: &view,
+          resolve_target: None,
+          depth_slice: None,
+          ops: wgpu::Operations {
+            load: wgpu::LoadOp::Clear(self.sky),
+            store: wgpu::StoreOp::Store,
+          },
+        })],
+        depth_stencil_attachment: None,
+        occlusion_query_set: None,
+        timestamp_writes: None,
+        multiview_mask: None,
+      });
+
+      if self.other_pipeline {
+        render_pass.set_pipeline(&self.render_pipeline1);
+      } else {
+        render_pass.set_pipeline(&self.render_pipeline2);
+      }
+      render_pass.draw(0..3, 0..1); // 3.
+    }
+
+    // submit will accept anything that implements IntoIter
+    self.queue.submit(std::iter::once(encoder.finish()));
+    output.present();
+
+    Ok(())
+  }
+
+  fn handle_key(&mut self, event_loop: &ActiveEventLoop, code: KeyCode, is_pressed: bool) {
+    match (code, is_pressed) {
+      (KeyCode::Escape, true) => event_loop.exit(),
+      (KeyCode::Space, true) => {
+        self.other_pipeline = !self.other_pipeline;
+      }
+      _ => {}
+    }
+  }
+
+  fn handle_mouse_moved(&mut self, position: PhysicalPosition<f64>) {
+    self.sky = wgpu::Color {
+      r: 0.3,
+      g: position.x / 1000.0,
+      b: position.y / 1000.0,
+      a: 1.0,
+    }
+  }
+}
+
+pub struct App {
+  #[cfg(target_arch = "wasm32")]
+  proxy: Option<winit::event_loop::EventLoopProxy<State>>,
+  state: Option<State>,
+}
+
+impl App {
+  pub fn new(#[cfg(target_arch = "wasm32")] event_loop: &EventLoop<State>) -> Self {
+    #[cfg(target_arch = "wasm32")]
+    let proxy = Some(event_loop.create_proxy());
+    Self {
+      state: None,
+      #[cfg(target_arch = "wasm32")]
+      proxy,
+    }
+  }
+}
+
+impl ApplicationHandler<State> for App {
+  fn resumed(&mut self, event_loop: &ActiveEventLoop) {
+    #[allow(unused_mut)]
+    let mut window_attributes = Window::default_attributes();
+
+    #[cfg(target_arch = "wasm32")]
+    {
+      use wasm_bindgen::JsCast;
+      use winit::platform::web::WindowAttributesExtWebSys;
+
+      const CANVAS_ID: &str = "canvas";
+
+      let window = wgpu::web_sys::window().unwrap_throw();
+      let document = window.document().unwrap_throw();
+      let canvas = document.get_element_by_id(CANVAS_ID).unwrap_throw();
+      let html_canvas_element = canvas.unchecked_into();
+      window_attributes = window_attributes.with_canvas(Some(html_canvas_element));
+    }
+
+    let window = Arc::new(event_loop.create_window(window_attributes).unwrap());
+
+    #[cfg(not(target_arch = "wasm32"))]
+    {
+      // If we are not on web we can use pollster to
+      // await the window creation
+      self.state = Some(pollster::block_on(State::new(window)).unwrap());
+    }
+
+    #[cfg(target_arch = "wasm32")]
+    {
+      // Run the future asynchronously and use the
+      // proxy to send the results to the event loop
+      if let Some(proxy) = self.proxy.take() {
+        wasm_bindgen_futures::spawn_local(async move {
+          assert!(
+            proxy
+              .send_event(
+                State::new(window)
+                  .await
+                  .expect("Unable to create canvas!!!")
+              )
+              .is_ok()
+          )
+        });
+      }
+    }
+  }
+
+  #[allow(unused_mut)]
+  fn user_event(&mut self, _event_loop: &ActiveEventLoop, mut event: State) {
+    // This is where proxy.send_event() ends up
+    #[cfg(target_arch = "wasm32")]
+    {
+      event.window.request_redraw();
+      event.resize(
+        event.window.inner_size().width,
+        event.window.inner_size().height,
+      );
+    }
+    self.state = Some(event);
+  }
+
+  fn window_event(
+    &mut self,
+    event_loop: &ActiveEventLoop,
+    _window_id: winit::window::WindowId,
+    event: WindowEvent,
+  ) {
+    let state = match &mut self.state {
+      Some(canvas) => canvas,
+      None => return,
+    };
+
+    match event {
+      WindowEvent::CloseRequested => event_loop.exit(),
+      WindowEvent::Resized(size) => state.resize(size.width, size.height),
+      WindowEvent::RedrawRequested => {
+        state.update();
+        match state.render() {
+          Ok(_) => {}
+          Err(e) => {
+            // Log the error and exit gracefully
+            log::error!("{e}");
+            event_loop.exit();
+          }
+        }
+      }
+      WindowEvent::CursorMoved { position: pos, .. } => state.handle_mouse_moved(pos),
+      WindowEvent::KeyboardInput {
+        event:
+        KeyEvent {
+          physical_key: PhysicalKey::Code(code),
+          state: key_state,
+          ..
+        },
+        ..
+      } => state.handle_key(event_loop, code, key_state.is_pressed()),
+      _ => {}
+    }
+  }
+}
+
+pub fn run() -> anyhow::Result<()> {
+  #[cfg(not(target_arch = "wasm32"))]
+  {
+    env_logger::init();
+  }
+  #[cfg(target_arch = "wasm32")]
+  {
+    console_log::init_with_level(log::Level::Info).unwrap_throw();
+  }
+
+  let event_loop = EventLoop::with_user_event().build()?;
+  #[cfg(not(target_arch = "wasm32"))]
+  {
+    let mut app = App::new();
+    event_loop.run_app(&mut app)?;
+  }
+  #[cfg(target_arch = "wasm32")]
+  {
+    let app = App::new(&event_loop);
+    event_loop.spawn_app(app);
+  }
+
+  Ok(())
+}
+
+#[cfg(target_arch = "wasm32")]
+#[wasm_bindgen(start)]
+pub fn run_web() -> Result<(), wasm_bindgen::JsValue> {
+  console_error_panic_hook::set_once();
+  run().unwrap_throw();
+
+  Ok(())
+}

src/examples/script.lua

@@ -0,0 +1 @@
+print("hello world")

src/examples/test.nel

@@ -1,11 +0,0 @@
-/*
-@native @inline
-@expr(say (&a: String) (b: i32) times)
-fn say_something(&a: String, b: i32) -> Pack<String,i32> {
-    for index in 0..b {
-        a += a
-    }
-    return {a,b}
-}
-*/
-println("where the huzz")

src/lib.rs

@@ -1,482 +1,3 @@
 #![recursion_limit = "256"]
-mod lang;
-mod neural;
-
-// Credit of most code to https://sotrh.github.io/learn-wgpu/ since I come from OpenGl not wgpu
-use std::sync::Arc;
-
-#[cfg(target_arch = "wasm32")]
-use wasm_bindgen::prelude::*;
-use winit::dpi::PhysicalPosition;
-#[cfg(target_arch = "wasm32")]
-use winit::platform::web::EventLoopExtWebSys;
-use winit::{
-    application::ApplicationHandler,
-    event::*,
-    event_loop::{ActiveEventLoop, EventLoop},
-    keyboard::{KeyCode, PhysicalKey},
-    window::Window,
-};
-
-// This will store the state of our game
-pub struct State {
-    surface: wgpu::Surface<'static>,
-    device: wgpu::Device,
-    queue: wgpu::Queue,
-    config: wgpu::SurfaceConfiguration,
-    is_surface_configured: bool,
-    window: Arc<Window>,
-    render_pipeline1: wgpu::RenderPipeline,
-    render_pipeline2: wgpu::RenderPipeline,
-    other_pipeline: bool,
-    sky: wgpu::Color,
-}
-
-impl State {
-    // We don't need this to be async right now,
-    // but we will in the next tutorial
-    pub async fn new(window: Arc<Window>) -> anyhow::Result<Self> {
-        let size = window.inner_size();
-
-        // The instance is a handle to our GPU
-        // BackendBit::PRIMARY => Vulkan + Metal + DX12 + Browser WebGPU
-        let instance = wgpu::Instance::new(wgpu::InstanceDescriptor {
-            #[cfg(not(target_arch = "wasm32"))]
-            backends: wgpu::Backends::PRIMARY,
-            #[cfg(target_arch = "wasm32")]
-            backends: wgpu::Backends::GL,
-            flags: Default::default(),
-            memory_budget_thresholds: Default::default(),
-            backend_options: Default::default(),
-            display: None,
-        });
-
-        let surface = instance.create_surface(window.clone()).unwrap();
-
-        let adapter = instance
-            .request_adapter(&wgpu::RequestAdapterOptions {
-                power_preference: wgpu::PowerPreference::default(),
-                compatible_surface: Some(&surface),
-                force_fallback_adapter: false,
-            })
-            .await?;
-
-        let (device, queue) = adapter
-            .request_device(&wgpu::DeviceDescriptor {
-                label: None,
-                required_features: wgpu::Features::empty(),
-                experimental_features: wgpu::ExperimentalFeatures::disabled(),
-                // WebGL doesn't support all of wgpu's features, so if
-                // we're building for the web we'll have to disable some.
-                required_limits: if cfg!(target_arch = "wasm32") {
-                    wgpu::Limits::downlevel_webgl2_defaults()
-                } else {
-                    wgpu::Limits::default()
-                },
-                memory_hints: Default::default(),
-                trace: wgpu::Trace::Off,
-            })
-            .await?;
-
-        let surface_caps = surface.get_capabilities(&adapter);
-        // Shader code in this tutorial assumes an sRGB surface texture. Using a different
-        // one will result in all the colors coming out darker. If you want to support non
-        // sRGB surfaces, you'll need to account for that when drawing to the frame.
-        let surface_format = surface_caps
-            .formats
-            .iter()
-            .find(|f| f.is_srgb())
-            .copied()
-            .unwrap_or(surface_caps.formats[0]);
-        let config = wgpu::SurfaceConfiguration {
-            usage: wgpu::TextureUsages::RENDER_ATTACHMENT,
-            format: surface_format,
-            width: size.width,
-            height: size.height,
-            present_mode: surface_caps.present_modes[0],
-            alpha_mode: surface_caps.alpha_modes[0],
-            view_formats: vec![],
-            desired_maximum_frame_latency: 2,
-        };
-
-        let shader1 = device.create_shader_module(wgpu::include_wgsl!("shader.wgsl"));
-
-        let render_pipeline_layout1 =
-            device.create_pipeline_layout(&wgpu::PipelineLayoutDescriptor {
-                label: Some("Render Pipeline Layout"),
-                bind_group_layouts: &[],
-                immediate_size: 0,
-            });
-
-        let render_pipeline1 = device.create_render_pipeline(&wgpu::RenderPipelineDescriptor {
-            label: Some("Render Pipeline"),
-            layout: Some(&render_pipeline_layout1),
-            vertex: wgpu::VertexState {
-                module: &shader1,
-                entry_point: Some("vs_main"), // 1.
-                buffers: &[],                 // 2.
-                compilation_options: wgpu::PipelineCompilationOptions::default(),
-            },
-            fragment: Some(wgpu::FragmentState {
-                // 3.
-                module: &shader1,
-                entry_point: Some("fs_main"),
-                targets: &[Some(wgpu::ColorTargetState {
-                    // 4.
-                    format: config.format,
-                    blend: Some(wgpu::BlendState::REPLACE),
-                    write_mask: wgpu::ColorWrites::ALL,
-                })],
-                compilation_options: wgpu::PipelineCompilationOptions::default(),
-            }),
-            primitive: wgpu::PrimitiveState {
-                topology: wgpu::PrimitiveTopology::TriangleList, // 1.
-                strip_index_format: None,
-                front_face: wgpu::FrontFace::Ccw, // 2.
-                cull_mode: Some(wgpu::Face::Back),
-                // Setting this to anything other than Fill requires Features::NON_FILL_POLYGON_MODE
-                polygon_mode: wgpu::PolygonMode::Fill,
-                // Requires Features::DEPTH_CLIP_CONTROL
-                unclipped_depth: false,
-                // Requires Features::CONSERVATIVE_RASTERIZATION
-                conservative: false,
-            },
-            depth_stencil: None, // 1.
-            multisample: wgpu::MultisampleState {
-                count: 1,                         // 2.
-                mask: !0,                         // 3.
-                alpha_to_coverage_enabled: false, // 4.
-            },
-            multiview_mask: None, // 5.
-            cache: None,          // 6.
-        });
-
-        let shader2 = device.create_shader_module(wgpu::include_wgsl!("shader2.wgsl"));
-
-        let render_pipeline_layout2 =
-            device.create_pipeline_layout(&wgpu::PipelineLayoutDescriptor {
-                label: Some("Render Pipeline Layout"),
-                bind_group_layouts: &[],
-                immediate_size: 0,
-            });
-
-        let render_pipeline2 = device.create_render_pipeline(&wgpu::RenderPipelineDescriptor {
-            label: Some("Render Pipeline"),
-            layout: Some(&render_pipeline_layout2),
-            vertex: wgpu::VertexState {
-                module: &shader2,
-                entry_point: Some("vs_main"), // 1.
-                buffers: &[],                 // 2.
-                compilation_options: wgpu::PipelineCompilationOptions::default(),
-            },
-            fragment: Some(wgpu::FragmentState {
-                // 3.
-                module: &shader2,
-                entry_point: Some("fs_main"),
-                targets: &[Some(wgpu::ColorTargetState {
-                    // 4.
-                    format: config.format,
-                    blend: Some(wgpu::BlendState::REPLACE),
-                    write_mask: wgpu::ColorWrites::ALL,
-                })],
-                compilation_options: wgpu::PipelineCompilationOptions::default(),
-            }),
-            primitive: wgpu::PrimitiveState {
-                topology: wgpu::PrimitiveTopology::TriangleList, // 1.
-                strip_index_format: None,
-                front_face: wgpu::FrontFace::Ccw, // 2.
-                cull_mode: Some(wgpu::Face::Back),
-                // Setting this to anything other than Fill requires Features::NON_FILL_POLYGON_MODE
-                polygon_mode: wgpu::PolygonMode::Fill,
-                // Requires Features::DEPTH_CLIP_CONTROL
-                unclipped_depth: false,
-                // Requires Features::CONSERVATIVE_RASTERIZATION
-                conservative: false,
-            },
-            depth_stencil: None, // 1.
-            multisample: wgpu::MultisampleState {
-                count: 1,                         // 2.
-                mask: !0,                         // 3.
-                alpha_to_coverage_enabled: false, // 4.
-            },
-            multiview_mask: None, // 5.
-            cache: None,          // 6.
-        });
-
-        Ok(Self {
-            surface,
-            device,
-            queue,
-            config,
-            is_surface_configured: false,
-            window,
-            render_pipeline1,
-            render_pipeline2,
-            other_pipeline: false,
-            sky: wgpu::Color {
-                r: 0.1,
-                g: 0.2,
-                b: 0.3,
-                a: 1.0,
-            },
-        })
-    }
-
-    pub fn resize(&mut self, width: u32, height: u32) {
-        if width > 0 && height > 0 {
-            let max = 2048;
-            self.config.width = width.min(max);
-            self.config.height = height.min(max);
-            self.surface.configure(&self.device, &self.config);
-            self.is_surface_configured = true;
-        }
-    }
-
-    fn update(&mut self) {
-        // ...
-    }
-
-    fn render(&mut self) -> anyhow::Result<()> {
-        self.window.request_redraw();
-
-        // We can't render unless the surface is configured
-        if !self.is_surface_configured {
-            return Ok(());
-        }
-
-        let output = match self.surface.get_current_texture() {
-            wgpu::CurrentSurfaceTexture::Success(surface_texture) => surface_texture,
-            wgpu::CurrentSurfaceTexture::Suboptimal(surface_texture) => {
-                self.surface.configure(&self.device, &self.config);
-                surface_texture
-            }
-            wgpu::CurrentSurfaceTexture::Timeout
-            | wgpu::CurrentSurfaceTexture::Occluded
-            | wgpu::CurrentSurfaceTexture::Validation => {
-                // Skip this frame
-                return Ok(());
-            }
-            wgpu::CurrentSurfaceTexture::Outdated => {
-                self.surface.configure(&self.device, &self.config);
-                return Ok(());
-            }
-            wgpu::CurrentSurfaceTexture::Lost => {
-                // You could recreate the devices and all resources
-                // created with it here, but we'll just bail
-                anyhow::bail!("Lost device");
-            }
-        };
-        let view = output
-            .texture
-            .create_view(&wgpu::TextureViewDescriptor::default());
-        let mut encoder = self
-            .device
-            .create_command_encoder(&wgpu::CommandEncoderDescriptor {
-                label: Some("Render Encoder"),
-            });
-        {
-            let mut render_pass = encoder.begin_render_pass(&wgpu::RenderPassDescriptor {
-                label: Some("Render Pass"),
-                color_attachments: &[Some(wgpu::RenderPassColorAttachment {
-                    view: &view,
-                    resolve_target: None,
-                    depth_slice: None,
-                    ops: wgpu::Operations {
-                        load: wgpu::LoadOp::Clear(self.sky),
-                        store: wgpu::StoreOp::Store,
-                    },
-                })],
-                depth_stencil_attachment: None,
-                occlusion_query_set: None,
-                timestamp_writes: None,
-                multiview_mask: None,
-            });
-
-            if self.other_pipeline {
-                render_pass.set_pipeline(&self.render_pipeline1);
-            } else {
-                render_pass.set_pipeline(&self.render_pipeline2);
-            }
-            render_pass.draw(0..3, 0..1); // 3.
-        }
-
-        // submit will accept anything that implements IntoIter
-        self.queue.submit(std::iter::once(encoder.finish()));
-        output.present();
-
-        Ok(())
-    }
-
-    fn handle_key(&mut self, event_loop: &ActiveEventLoop, code: KeyCode, is_pressed: bool) {
-        match (code, is_pressed) {
-            (KeyCode::Escape, true) => event_loop.exit(),
-            (KeyCode::Space, true) => {
-                self.other_pipeline = !self.other_pipeline;
-            }
-            _ => {}
-        }
-    }
-
-    fn handle_mouse_moved(&mut self, position: PhysicalPosition<f64>) {
-        self.sky = wgpu::Color {
-            r: 0.3,
-            g: position.x / 1000.0,
-            b: position.y / 1000.0,
-            a: 1.0,
-        }
-    }
-}
-
-pub struct App {
-    #[cfg(target_arch = "wasm32")]
-    proxy: Option<winit::event_loop::EventLoopProxy<State>>,
-    state: Option<State>,
-}
-
-impl App {
-    pub fn new(#[cfg(target_arch = "wasm32")] event_loop: &EventLoop<State>) -> Self {
-        #[cfg(target_arch = "wasm32")]
-        let proxy = Some(event_loop.create_proxy());
-        Self {
-            state: None,
-            #[cfg(target_arch = "wasm32")]
-            proxy,
-        }
-    }
-}
-
-impl ApplicationHandler<State> for App {
-    fn resumed(&mut self, event_loop: &ActiveEventLoop) {
-        #[allow(unused_mut)]
-        let mut window_attributes = Window::default_attributes();
-
-        #[cfg(target_arch = "wasm32")]
-        {
-            use wasm_bindgen::JsCast;
-            use winit::platform::web::WindowAttributesExtWebSys;
-
-            const CANVAS_ID: &str = "canvas";
-
-            let window = wgpu::web_sys::window().unwrap_throw();
-            let document = window.document().unwrap_throw();
-            let canvas = document.get_element_by_id(CANVAS_ID).unwrap_throw();
-            let html_canvas_element = canvas.unchecked_into();
-            window_attributes = window_attributes.with_canvas(Some(html_canvas_element));
-        }
-
-        let window = Arc::new(event_loop.create_window(window_attributes).unwrap());
-
-        #[cfg(not(target_arch = "wasm32"))]
-        {
-            // If we are not on web we can use pollster to
-            // await the window creation
-            self.state = Some(pollster::block_on(State::new(window)).unwrap());
-        }
-
-        #[cfg(target_arch = "wasm32")]
-        {
-            // Run the future asynchronously and use the
-            // proxy to send the results to the event loop
-            if let Some(proxy) = self.proxy.take() {
-                wasm_bindgen_futures::spawn_local(async move {
-                    assert!(
-                        proxy
-                            .send_event(
-                                State::new(window)
-                                    .await
-                                    .expect("Unable to create canvas!!!")
-                            )
-                            .is_ok()
-                    )
-                });
-            }
-        }
-    }
-
-    #[allow(unused_mut)]
-    fn user_event(&mut self, _event_loop: &ActiveEventLoop, mut event: State) {
-        // This is where proxy.send_event() ends up
-        #[cfg(target_arch = "wasm32")]
-        {
-            event.window.request_redraw();
-            event.resize(
-                event.window.inner_size().width,
-                event.window.inner_size().height,
-            );
-        }
-        self.state = Some(event);
-    }
-
-    fn window_event(
-        &mut self,
-        event_loop: &ActiveEventLoop,
-        _window_id: winit::window::WindowId,
-        event: WindowEvent,
-    ) {
-        let state = match &mut self.state {
-            Some(canvas) => canvas,
-            None => return,
-        };
-
-        match event {
-            WindowEvent::CloseRequested => event_loop.exit(),
-            WindowEvent::Resized(size) => state.resize(size.width, size.height),
-            WindowEvent::RedrawRequested => {
-                state.update();
-                match state.render() {
-                    Ok(_) => {}
-                    Err(e) => {
-                        // Log the error and exit gracefully
-                        log::error!("{e}");
-                        event_loop.exit();
-                    }
-                }
-            }
-            WindowEvent::CursorMoved { position: pos, .. } => state.handle_mouse_moved(pos),
-            WindowEvent::KeyboardInput {
-                event:
-                    KeyEvent {
-                        physical_key: PhysicalKey::Code(code),
-                        state: key_state,
-                        ..
-                    },
-                ..
-            } => state.handle_key(event_loop, code, key_state.is_pressed()),
-            _ => {}
-        }
-    }
-}
-
-pub fn run() -> anyhow::Result<()> {
-    #[cfg(not(target_arch = "wasm32"))]
-    {
-        env_logger::init();
-    }
-    #[cfg(target_arch = "wasm32")]
-    {
-        console_log::init_with_level(log::Level::Info).unwrap_throw();
-    }
-
-    let event_loop = EventLoop::with_user_event().build()?;
-    #[cfg(not(target_arch = "wasm32"))]
-    {
-        let mut app = App::new();
-        event_loop.run_app(&mut app)?;
-    }
-    #[cfg(target_arch = "wasm32")]
-    {
-        let app = App::new(&event_loop);
-        event_loop.spawn_app(app);
-    }
-
-    Ok(())
-}
-
-#[cfg(target_arch = "wasm32")]
-#[wasm_bindgen(start)]
-pub fn run_web() -> Result<(), wasm_bindgen::JsValue> {
-    console_error_panic_hook::set_once();
-    run().unwrap_throw();
-
-    Ok(())
-}
+pub mod engine;
+pub mod lang;

src/main.rs

@@ -1,7 +1,8 @@
 #![recursion_limit = "256"]
 
-use game::run;
+use game::*;
 
 fn main() {
-    run().unwrap();
+    
+    //engine::run().unwrap();
 }

src/notes/old_lang.rs

@@ -0,0 +1,353 @@
+// Macro for expanding syntax form into a struct
+macro_rules! definition {
+  {@build ($n:ident structure) ($($t:tt)*) null () } => {
+    #[allow(unused)]
+    #[derive(Debug)]
+    struct $n ($($t)*);
+  };
+  {@build ($n:ident enumeration new ($($f:tt)*) ($m:ident($($mt:tt)*)$($r:tt)*)) () null ()} => {
+    definition!{@build ($n enumeration ($($f)*) ($m($($mt)*)$($r)*)) () null () $($mt)*}
+  };
+  {@build ($n:ident enumeration ($($f:tt)*) ($m:ident($($mt:tt)*)$($r:tt)*)) ($($t:tt)*) null ()} => {
+    definition!{@build ($n enumeration new ($($f)*$m($($t)*)) ($($r)*)) () null () }
+  };
+  {@build ($n:ident enumeration new ($($m:ident($($mt:tt)*))*) ()) () null () } => {
+    definition!{@build ($n enumeration filter () ($($m($($mt)*))*))}
+  };
+  {@build ($n:ident enumeration filter ($($e:tt)*) ($m:ident($($mt:tt)+)$($t:tt)*))} => {
+    definition!{@build ($n enumeration filter ($($e)*$m($($mt)*),) ($($t)*))}
+  };
+  {@build ($n:ident enumeration filter ($($e:tt)*) ($m:ident()$($t:tt)*))} => {
+    definition!{@build ($n enumeration filter ($($e)*$m,) ($($t)*))}
+  };
+  {@build ($n:ident enumeration filter ($($e:tt)*) ())} => {
+    #[allow(unused)]
+    #[derive(Debug)]
+    enum $n {
+      $($e)*
+    }
+  };
+  {@build $m:tt ($($t:tt)*) null () $l:literal $($r:tt)*} => {
+    definition!{@build $m ($($t)*) null () $($r)*}
+  };
+  {@build $m:tt ($($t:tt)*) null () $i:ident $($r:tt)*} => {
+    definition!{@build $m ($($t)*Box<$i>,) null () $($r)*}
+  };
+  {@build $m:tt ($($t:tt)*) option ($a:tt) () $($r:tt)*} => {
+    definition!{@build $m ($($t)*Option<$a>,) null () $($r)*}
+  };
+  {@build $m:tt ($($t:tt)*) vector ($a:tt) () $($r:tt)*} => {
+    definition!{@build $m ($($t)*Vec<$a>,) null () $($r)*}
+  };
+  {@build $m:tt ($($t:tt)*) option ($($a:tt)*) () $($r:tt)*} => {
+    definition!{@build $m ($($t)*Option<($($a),*)>,) null () $($r)*}
+  };
+  {@build $m:tt ($($t:tt)*) vector ($($a:tt)*) () $($r:tt)*} => {
+    definition!{@build $m ($($t)*Vec<($($a),*)>,) null () $($r)*}
+  };
+  {@build $m:tt ($($t:tt)*) null () [$($b:tt)*] $($r:tt)*} => {
+    definition!{@build $m ($($t)*) option () ($($b)*) $($r)*}
+  };
+  {@build $m:tt ($($t:tt)*) null () {$($b:tt)*} $($r:tt)*} => {
+    definition!{@build $m ($($t)*) vector () ($($b)*) $($r)*}
+  };
+  {@build $m:tt ($($t:tt)*) $i:ident ($($a:tt)*) ($l:literal $($b:tt)*) $($r:tt)*} => {
+    definition!{@build $m ($($t)*) $i ($($a)*) ($($b)*) $($r)*}
+  };
+  {@build $m:tt ($($t:tt)*) $i:ident ($($a:tt)*) ($n:ident $($b:tt)*) $($r:tt)*} => {
+    definition!{@build $m ($($t)*) $i ($($a)*$n) ($($b)*) $($r)*}
+  };
+}
+macro_rules! implement {
+  {@begin $n:ident structure $($t:tt)*} => {
+    implement!{@build (state result) (structure $n) {} {} $($t)*}
+  };
+  {@begin $n:ident enumeration ($m:ident ($($t2:tt)*)$($t:tt)*)} => {
+    implement!{@build (state result) (enumeration $m {} ($($t)*) $n) {} {} $($t2)*}
+  };
+  {@build ($st:ident $r:ident) $m:tt $f:tt {$($f2:tt)*} $s:literal $($t:tt)*} => {
+    implement!{@build ($st $r) $m $f {
+      $($f2)*
+      $st = $st.trim_start();
+      if $st.starts_with($s) {
+        $st = &$st[$s.len()..]
+      } else {
+        return Err("error".to_string())
+      }
+    } $($t)*}
+  };
+  {@build ($s:ident $r:ident) $m:tt {$($f:tt)*} {$($f2:tt)*} $i:ident $($t:tt)*} => {
+    implement!{@build ($s $r) $m {$($f)*{$($f2)*}} {
+      let $r;
+      match $i::consume($s) {
+        Ok((r,s)) => {
+          $s = s;
+          $r = r;
+        }
+        Err(error) => {
+          return Err(error);
+        }
+      }
+    } $($t)*}
+  };
+  {@build $va:tt ($($m:tt)*) {$($f:tt)*} {$($f2:tt)*} {$($r:tt)*} $($t:tt)*} => {
+    implement!{@build $va (vector {$($f)*{$($f2)*}} ($($t)*) $($m)*) {} {} $($r)*}
+  };
+  {@build $va:tt ($($m:tt)*) {$($f:tt)*} {$($f2:tt)*} [$($r:tt)*] $($t:tt)*} => {
+    implement!{@build $va (option {$($f)*{$($f2)*}} ($($t)*) $($m)*) {} {} $($r)*}
+  };
+  {@finish ($s:ident $re:ident) (option {$($l:tt)*} ($($t:tt)*) $($m:tt)*) {{$($f:tt)*}$({$($r:tt)*})*} } => {
+    implement!{@build ($s $re) ($($m)*) {$($l)*} {
+      let mut $re;
+      let taker = move |_state| {
+        let mut $s: &str = _state;
+        $($f)*
+        Ok(((
+          $({$($r)*$re}),*
+        ),$s))
+      };
+      match taker($s) {
+        Ok((r,s)) => {
+          $s = s;
+          $re = Some(r);
+        }
+        Err(_) => {
+          $re = None;
+        }
+      }
+    } $($t)*}
+  };
+  {@finish ($s:ident $re:ident) (vector {$($l:tt)*} ($($t:tt)*) $($m:tt)*) {{$($f:tt)*}$({$($r:tt)*})*} } => {
+    implement!{@build ($s $re) ($($m)*) {$($l)*} {
+      let mut $re = Vec::new();
+      let taker = move |_state| {
+        let mut $s: &str = _state;
+        $($f)*
+        Ok(((
+          $({$($r)*$re}),*
+        ),$s))
+      };
+      while !$s.is_empty() {
+        match taker($s) {
+          Ok((r,s)) => {
+            $s = s;
+            $re.push(r);
+          }
+          Err(error) => {
+            break;
+          }
+        };
+      }
+    } $($t)*}
+  };
+  {@build $va:tt $m:tt {$($r:tt)*} $r2:tt} => {
+    implement!{@finish $va $m {$($r)*$r2}}
+  };
+  {@finish ($s:ident $re:ident) (structure $n:ident) {{$($f:tt)*}$({$($r:tt)*})*} } => {
+    #[allow(unused)]
+    impl Parse for $n {
+      fn consume(_state: &str) -> Result<(Self, &str), Error> where Self: Sized {
+        let mut $s: &str = _state;
+        $($f)*
+        Ok((
+          $n($({$($r)*$re.into()}),*),$s
+        ))
+      }
+    }
+  };
+  {@finish ($s:ident $re:ident) (enumeration $m2:ident {$($l:tt)*} ($m:ident ($($t2:tt)*)$($t:tt)*) $n:ident) {$f:tt$({$($r:tt)*})+} } => {
+    implement!{@build ($s $re) (enumeration $m {$($l)*{
+      $f
+      Ok((
+        $n::$m2($({$($r)*$re.into()}),+),$s
+      ))
+    }} ($($t)*) $n) {} {} $($t2)*}
+  };
+  {@finish ($s:ident $re:ident) (enumeration $m3:ident {$($l:tt)*} ($m:ident ($($t2:tt)*)$($t:tt)*) $n:ident) {$f:tt} } => {
+    implement!{@build ($s $re) (enumeration $m {$($l)*{
+      $f
+      Ok((
+        $n::$m3,$s
+      ))
+    }} ($($t)*) $n) {} {} $($t2)*}
+  };
+  {@finish ($s:ident $re:ident) (enumeration $m2:ident {$($l:tt)*} () $n:ident) {$f:tt$({$($r:tt)*})+}} => {
+    implement!{@finish ($s $re) (enumeration {$($l)*{
+      $f
+      Ok((
+        $n::$m2($({$($r)*$re.into()}),+),$s
+      ))
+    }} () $n)} // straight to below
+  };
+  {@finish ($s:ident $re:ident) (enumeration $m2:ident {$($l:tt)*} () $n:ident) {$f:tt}} => {
+    implement!{@finish ($s $re) (enumeration {$($l)*{
+      $f
+      Ok((
+        $n::$m2,$s
+      ))
+    }} () $n)} // straight to below
+  };
+  {@finish ($s:ident $re:ident) (enumeration {$({$($f:tt)*})*} () $n:ident)} => {
+    #[allow(unused)]
+    impl Parse for $n {
+      fn consume(_state: &str) -> Result<(Self, &str), Error> where Self: Sized {
+        let mut $s: &str = _state;
+        $(
+        let case = (||{
+          let mut state: &str = _state;
+          $($f)*
+        })(); // put it into a closure and run it (makes returning easier)
+        if case.is_ok() {
+          return case;
+        }
+        )*
+        Err("error".into())
+      }
+    }
+  };
+}
+macro_rules! class {
+  ($i:ident($($t:tt)*)) => {
+    definition!{@build ($i structure) () null () $($t)*}
+    implement!{@begin $i structure $($t)*}
+    //display!{@begin $i structure $($t)*}
+  };
+  ($i:ident{$($n:ident($($t:tt)*)),*}) => {
+    definition!{@build ($i enumeration new () ($($n($($t)*))*)) () null ()}
+    implement!{@begin $i enumeration ($($n($($t)*))*)}
+    //display!{@begin $i enumeration ($($n($($t)*))*)}
+  }
+}
+macro_rules! parser {
+  () => {};
+  ($i:ident$t:tt;$($tail:tt)*) => {
+    class!($i$t);
+    parser!($($tail)*);
+  };
+}
+
+// todo: reimplement attrib here
+// https://www.lua.org/manual/5.5/manual.html#9
+parser!{
+  // LiteralString -> "..."
+  // LiteralNumber -> 0x... 123.456
+  Chunk ( Block );
+  Block ( {Statement} [Return] );
+  Statement {
+    Semicolon (";"),
+    Assignment (Variables "=" Expressions),
+    Call (RootAtom CallChain),
+    Label (Label),
+    Break ("break"),
+    Goto ("goto" Name),
+    Do ("do" Block "end"),
+    While ("while" Expression "do" Block "end"),
+    Repeat ("repeat" Block "until" Expression),
+    If ("if" Expression "then" Block {"elseif" Expression "then" Block} ["else" Block] "end"),
+    ForRange ("for" Name "=" Expression "," Expression ["," Expression] "do" Block "end"),
+    ForIn ("for" Names "in" Expressions "do" Block "end"),
+    Function ("function" FunctionName FunctionBody),
+    LocalFunction ("local" "function" Name FunctionBody),
+    GlobalFunction ("global" "function" Name FunctionBody),
+    Declaration ("local" Names ["=" Expressions]),
+    Global ("global" Names)
+  };
+  Return( "return" [Expressions] [";"] );
+  Label( "::" Name "::" );
+  FunctionName( Name {"." Name} [":" Name] );
+  Variables( Variable {"," Variable} );
+  Names( Name {"," Name} );
+  Expressions( Expression {"," Expression} );
+  // DEVIATION: This parser is greedy, so the manual's syntax breaks it.
+  RootAtom {
+    Variable (Name),
+    Expression ("(" Expression ")")
+  };
+  IndexAtom {
+    Dot ("." Name),
+    Index ("[" Expression "]")
+  };
+  CallAtom {
+    Normal (Arguments),
+    Method (":" Name Arguments)
+  };
+  PrefixAtom {
+    Call (CallAtom),
+    Index (IndexAtom)
+  };
+  VariableChain {
+    Link (PrefixAtom VariableChain),
+    Finish (IndexAtom)
+  };
+  CallChain {
+    Link (PrefixAtom CallChain),
+    Finish (CallAtom)
+  };
+  Variable (RootAtom VariableChain);
+  Expression {
+    Nil ("nil"),
+    False ("false"),
+    True ("true"),
+    VarArg ("..."),
+    Number (Number),
+    String (String),
+    FunctionDef (FunctionDef),
+    Prefix (RootAtom {PrefixAtom}),
+    Table (Table),
+    Binary (Expression BinaryOp Expression), // todo: .
+    Unary (UnaryOp Expression)
+  };
+  // -----------------------
+  Arguments {
+    Expressions ("(" [Expressions] ")"),
+    Table (Table),
+    String (String)
+  };
+  FunctionDef( "function" FunctionBody );
+  FunctionBody( "(" [Parameters] ")" Block "end" );
+  Parameters {
+    Names (Names ["," VarArg]),
+    VarArg (VarArg)
+  };
+  VarArg( "..." [Name] );
+  Table( "{" [Fields] "}" );
+  Fields( Field {FieldSep Field} [FieldSep] );
+  Field {
+    ExpressionIndex ("[" Expression "]" "=" Expression),
+    Name (Name "=" Expression),
+    Expression (Expression)
+  };
+  FieldSep {
+    Comma (","),
+    Semicolon (";")
+  };
+  BinaryOp {
+    Plus ("+"),
+    Minus ("-"),
+    Mul ("*"),
+    Divide ("/"),
+    DivFloor ("//"),
+    Caret ("^"),
+    Modulo ("%"),
+    Ampersand ("&"),
+    Tilde ("~"),
+    Pipe ("|"),
+    ShiftRight (">>"),
+    ShiftLeft ("<<"),
+    Concat (".."),
+    Less ("<"),
+    LessEqual ("<="),
+    Greater (">"),
+    GreatEqual (">="),
+    Equivalent ("=="),
+    NotEqual ("~="),
+    And ("and"),
+    Or ("or")
+  };
+  UnaryOp {
+    Negate ("-"),
+    Not ("not"),
+    Ampersand ("#"),
+    Tilde ("~")
+  };
+}