Revert lifetime commits -> lifetime-on-devs branch

Author: elftausend

Cargo.toml

@@ -53,8 +53,8 @@ min-cl = { git = "https://github.com/elftausend/min-cl", optional = true }
 [features]
 # default = ["cpu", "opencl", "cuda", "blas", "static-api", "stack", "macro", "nnapi", "untyped", "autograd", "autograd", "cached", "lazy", "fork", "graph", "serde"]
 # default = ["no-std"]
-# default = ["cpu"]
-default = ["untyped", "cpu", "lazy", "graph", "autograd", "fork", "serde", "json", "half", "cached", "static-api", "stack", "opencl", "cuda", "vulkan"]
+# default = ["cuda"]
+default = ["untyped", "cpu", "lazy", "graph", "autograd", "fork", "serde", "json", "half", "cached", "static-api", "stack", "opencl"]
 
 std = []
 

examples/custom_device.rs

@@ -9,7 +9,7 @@ pub struct CustomModule<Mods> {
 
 // bare minimum to implement a custom module
 
-impl<'a, D: 'a, Mods: Module<'a, D>> Module<'a, D> for CustomModule<Mods> {
+impl<D, Mods: Module<D>> Module<D> for CustomModule<Mods> {
     type Module = CustomModule<Mods::Module>;
 
     fn new() -> Self::Module {

examples/custom_module.rs

@@ -107,7 +107,7 @@ where
     /// This allocates a gradient buffer if it wasn't previously.
     #[inline]
     #[cfg(feature = "autograd")]
-    pub fn grad_mut<'b>(&'b self) -> &'b mut Self
+    pub fn grad_mut(&self) -> &'a mut Self
     where
         D: MayTapeActions + Alloc<T> + ZeroGrad<T>,
     {
@@ -127,7 +127,7 @@ where
     /// Returns a mutable reference to the gradient of this buffer.
     /// Returns none either if the autograd feature is disabled, no tape was found (add [`Autograd`] module) or no gradient was allocated previously.
     // TODO: Maybe return Result with two error variants?
-    pub fn try_grad_mut<'b>(&'b mut self) -> Option<&'a mut Self>
+    pub fn try_grad_mut(&self) -> Option<&'a mut Self>
     where
         D: MayTapeActions + Alloc<T>,
     {
@@ -148,30 +148,7 @@ where
     /// Activate the `autograd` feature to make this function useable.
     #[inline]
     #[cfg(not(feature = "autograd"))]
-    pub fn grad_mut<'b>(&'b mut self) -> &'a mut Self {
+    pub fn grad_mut(&self) -> &'a mut Self {
         unimplemented!("Gradient not available. Activate the autograd feature.");
     }
 }
-
-mod tests {
-    use crate::Number;
-
-    fn run<T: Number>(x: &mut [T], y: &mut [T]) {
-        for i in 0..x.len() {
-            x[i] = y[i] + T::one()
-        }
-    }
-
-    #[cfg(feature = "cpu")]
-    #[cfg(feature = "autograd")]
-    #[test]
-    fn test_multiple_grad_mut() {
-        use crate::{Autograd, Base, Cached, Device, CPU};
-
-        let device = CPU::<Autograd<Cached<Base>>>::new();
-        let mut buf = device.buffer([1, 2, 3, 4]);
-        let _out = buf.grad_mut();
-        let out = buf.grad_mut();
-        // run(_out, out);
-    }
-}