Support running tests in embassy-stm32 and move impl from common back to stm32

9 files changed, 186 insertions, 197 deletions

diff --git a/embassy-hal-common/src/lib.rs b/embassy-hal-common/src/lib.rs
index 1b253719e..b2a35cd35 100644
--- a/embassy-hal-common/src/lib.rs
+++ b/embassy-hal-common/src/lib.rs
@@ -10,5 +10,4 @@ mod macros;
 mod peripheral;
 pub mod ratio;
 pub mod ring_buffer;
-pub mod stm32;
 pub use peripheral::{Peripheral, PeripheralRef};
diff --git a/embassy-hal-common/src/stm32/flash/f4.rs b/embassy-hal-common/src/stm32/flash/f4.rs
deleted file mode 100644
index a8069dddf..000000000
--- a/embassy-hal-common/src/stm32/flash/f4.rs
+++ /dev/null
@@ -1,119 +0,0 @@
-const FLASH_BASE: u32 = 0x0800_0000;
-pub(crate) const SMALL_SECTOR_SIZE: u32 = 16 * 1024;
-pub(crate) const MEDIUM_SECTOR_SIZE: u32 = 64 * 1024;
-pub(crate) const LARGE_SECTOR_SIZE: u32 = 128 * 1024;
-pub const SECOND_BANK_SECTOR_OFFSET: u8 = 12;
-
-#[derive(Debug, PartialEq)]
-pub struct FlashSector {
-    pub index: u8,
-    pub start: u32,
-    pub size: u32,
-}
-
-pub fn get_sector(address: u32, dual_bank: bool, flash_size: u32) -> FlashSector {
-    let offset = address - FLASH_BASE;
-    if !dual_bank {
-        get_single_bank_sector(offset)
-    } else {
-        let bank_size = flash_size / 2;
-        if offset < bank_size {
-            get_single_bank_sector(offset)
-        } else {
-            let sector = get_single_bank_sector(offset - bank_size);
-            FlashSector {
-                index: SECOND_BANK_SECTOR_OFFSET + sector.index,
-                start: sector.start + bank_size,
-                size: sector.size,
-            }
-        }
-    }
-}
-
-fn get_single_bank_sector(offset: u32) -> FlashSector {
-    // First 4 sectors are 16KB, then one 64KB, and rest are 128KB
-    match offset / LARGE_SECTOR_SIZE {
-        0 => {
-            if offset < 4 * SMALL_SECTOR_SIZE {
-                let small_sector_index = offset / SMALL_SECTOR_SIZE;
-                FlashSector {
-                    index: small_sector_index as u8,
-                    start: FLASH_BASE + small_sector_index * SMALL_SECTOR_SIZE,
-                    size: SMALL_SECTOR_SIZE,
-                }
-            } else {
-                FlashSector {
-                    index: 4,
-                    start: FLASH_BASE + 4 * SMALL_SECTOR_SIZE,
-                    size: MEDIUM_SECTOR_SIZE,
-                }
-            }
-        }
-        i => {
-            let large_sector_index = i - 1;
-            FlashSector {
-                index: (5 + large_sector_index) as u8,
-                start: FLASH_BASE + 4 * SMALL_SECTOR_SIZE + MEDIUM_SECTOR_SIZE + large_sector_index * LARGE_SECTOR_SIZE,
-                size: LARGE_SECTOR_SIZE,
-            }
-        }
-    }
-}
-
-#[cfg(test)]
-mod tests {
-    use super::*;
-
-    #[test]
-    fn can_get_sector_single_bank() {
-        let assert_sector = |index: u8, start: u32, size: u32, addr: u32| {
-            assert_eq!(FlashSector { index, start, size }, get_sector(addr, false, 1024 * 1024))
-        };
-
-        assert_sector(0, 0x0800_0000, SMALL_SECTOR_SIZE, 0x0800_0000);
-        assert_sector(0, 0x0800_0000, SMALL_SECTOR_SIZE, 0x0800_3FFF);
-        assert_sector(3, 0x0800_C000, SMALL_SECTOR_SIZE, 0x0800_C000);
-        assert_sector(3, 0x0800_C000, SMALL_SECTOR_SIZE, 0x0800_FFFF);
-
-        assert_sector(4, 0x0801_0000, MEDIUM_SECTOR_SIZE, 0x0801_0000);
-        assert_sector(4, 0x0801_0000, MEDIUM_SECTOR_SIZE, 0x0801_FFFF);
-
-        assert_sector(5, 0x0802_0000, LARGE_SECTOR_SIZE, 0x0802_0000);
-        assert_sector(5, 0x0802_0000, LARGE_SECTOR_SIZE, 0x0803_FFFF);
-        assert_sector(11, 0x080E_0000, LARGE_SECTOR_SIZE, 0x080E_0000);
-        assert_sector(11, 0x080E_0000, LARGE_SECTOR_SIZE, 0x080F_FFFF);
-    }
-
-    #[test]
-    fn can_get_sector_dual_bank() {
-        let assert_sector = |index: u8, start: u32, size: u32, addr: u32| {
-            assert_eq!(FlashSector { index, start, size }, get_sector(addr, true, 1024 * 1024))
-        };
-
-        assert_sector(0, 0x0800_0000, SMALL_SECTOR_SIZE, 0x0800_0000);
-        assert_sector(0, 0x0800_0000, SMALL_SECTOR_SIZE, 0x0800_3FFF);
-        assert_sector(3, 0x0800_C000, SMALL_SECTOR_SIZE, 0x0800_C000);
-        assert_sector(3, 0x0800_C000, SMALL_SECTOR_SIZE, 0x0800_FFFF);
-
-        assert_sector(4, 0x0801_0000, MEDIUM_SECTOR_SIZE, 0x0801_0000);
-        assert_sector(4, 0x0801_0000, MEDIUM_SECTOR_SIZE, 0x0801_FFFF);
-
-        assert_sector(5, 0x0802_0000, LARGE_SECTOR_SIZE, 0x0802_0000);
-        assert_sector(5, 0x0802_0000, LARGE_SECTOR_SIZE, 0x0803_FFFF);
-        assert_sector(7, 0x0806_0000, LARGE_SECTOR_SIZE, 0x0806_0000);
-        assert_sector(7, 0x0806_0000, LARGE_SECTOR_SIZE, 0x0807_FFFF);
-
-        assert_sector(12, 0x0808_0000, SMALL_SECTOR_SIZE, 0x0808_0000);
-        assert_sector(12, 0x0808_0000, SMALL_SECTOR_SIZE, 0x0808_3FFF);
-        assert_sector(15, 0x0808_C000, SMALL_SECTOR_SIZE, 0x0808_C000);
-        assert_sector(15, 0x0808_C000, SMALL_SECTOR_SIZE, 0x0808_FFFF);
-
-        assert_sector(16, 0x0809_0000, MEDIUM_SECTOR_SIZE, 0x0809_0000);
-        assert_sector(16, 0x0809_0000, MEDIUM_SECTOR_SIZE, 0x0809_FFFF);
-
-        assert_sector(17, 0x080A_0000, LARGE_SECTOR_SIZE, 0x080A_0000);
-        assert_sector(17, 0x080A_0000, LARGE_SECTOR_SIZE, 0x080B_FFFF);
-        assert_sector(19, 0x080E_0000, LARGE_SECTOR_SIZE, 0x080E_0000);
-        assert_sector(19, 0x080E_0000, LARGE_SECTOR_SIZE, 0x080F_FFFF);
-    }
-}
diff --git a/embassy-hal-common/src/stm32/flash/f7.rs b/embassy-hal-common/src/stm32/flash/f7.rs
deleted file mode 100644
index 2f586adee..000000000
--- a/embassy-hal-common/src/stm32/flash/f7.rs
+++ /dev/null
@@ -1,67 +0,0 @@
-const FLASH_BASE: u32 = 0x0800_0000;
-pub(crate) const SMALL_SECTOR_SIZE: u32 = 32 * 1024;
-pub(crate) const MEDIUM_SECTOR_SIZE: u32 = 128 * 1024;
-pub(crate) const LARGE_SECTOR_SIZE: u32 = 256 * 1024;
-
-#[derive(Debug, PartialEq)]
-pub struct FlashSector {
-    pub index: u8,
-    pub start: u32,
-    pub size: u32,
-}
-
-pub fn get_sector(address: u32) -> FlashSector {
-    // First 4 sectors are 32KB, then one 128KB, and rest are 256KB
-    let offset = address - FLASH_BASE;
-    match offset / LARGE_SECTOR_SIZE {
-        0 => {
-            if offset < 4 * SMALL_SECTOR_SIZE {
-                let small_sector_index = offset / SMALL_SECTOR_SIZE;
-                FlashSector {
-                    index: small_sector_index as u8,
-                    start: FLASH_BASE + small_sector_index * SMALL_SECTOR_SIZE,
-                    size: SMALL_SECTOR_SIZE,
-                }
-            } else {
-                FlashSector {
-                    index: 4,
-                    start: FLASH_BASE + 4 * SMALL_SECTOR_SIZE,
-                    size: MEDIUM_SECTOR_SIZE,
-                }
-            }
-        }
-        i => {
-            let large_sector_index = i - 1;
-            FlashSector {
-                index: (5 + large_sector_index) as u8,
-                start: FLASH_BASE + 4 * SMALL_SECTOR_SIZE + MEDIUM_SECTOR_SIZE + large_sector_index * LARGE_SECTOR_SIZE,
-                size: LARGE_SECTOR_SIZE,
-            }
-        }
-    }
-}
-
-#[cfg(test)]
-mod tests {
-    use super::*;
-
-    #[test]
-    fn can_get_sector() {
-        let assert_sector = |index: u8, start: u32, size: u32, addr: u32| {
-            assert_eq!(FlashSector { index, start, size }, get_sector(addr))
-        };
-
-        assert_sector(0, 0x0800_0000, SMALL_SECTOR_SIZE, 0x0800_0000);
-        assert_sector(0, 0x0800_0000, SMALL_SECTOR_SIZE, 0x0800_7FFF);
-        assert_sector(3, 0x0801_8000, SMALL_SECTOR_SIZE, 0x0801_8000);
-        assert_sector(3, 0x0801_8000, SMALL_SECTOR_SIZE, 0x0801_FFFF);
-
-        assert_sector(4, 0x0802_0000, MEDIUM_SECTOR_SIZE, 0x0802_0000);
-        assert_sector(4, 0x0802_0000, MEDIUM_SECTOR_SIZE, 0x0803_FFFF);
-
-        assert_sector(5, 0x0804_0000, LARGE_SECTOR_SIZE, 0x0804_0000);
-        assert_sector(5, 0x0804_0000, LARGE_SECTOR_SIZE, 0x0807_FFFF);
-        assert_sector(7, 0x080C_0000, LARGE_SECTOR_SIZE, 0x080C_0000);
-        assert_sector(7, 0x080C_0000, LARGE_SECTOR_SIZE, 0x080F_FFFF);
-    }
-}
diff --git a/embassy-hal-common/src/stm32/flash/mod.rs b/embassy-hal-common/src/stm32/flash/mod.rs
deleted file mode 100644
index 1452b491d..000000000
--- a/embassy-hal-common/src/stm32/flash/mod.rs
+++ /dev/null
@@ -1,2 +0,0 @@
-pub mod f4;
-pub mod f7;
diff --git a/embassy-hal-common/src/stm32/mod.rs b/embassy-hal-common/src/stm32/mod.rs
deleted file mode 100644
index 2e50f82b3..000000000
--- a/embassy-hal-common/src/stm32/mod.rs
+++ /dev/null
@@ -1 +0,0 @@
-pub mod flash;
diff --git a/embassy-stm32/Cargo.toml b/embassy-stm32/Cargo.toml
index b66d724d5..1dd6202d3 100644
--- a/embassy-stm32/Cargo.toml
+++ b/embassy-stm32/Cargo.toml
@@ -60,7 +60,7 @@ sdio-host = "0.5.0"
 embedded-sdmmc = { git = "https://github.com/embassy-rs/embedded-sdmmc-rs", rev = "46d1b1c2ff13e31e282ec1e352421721694f126a", optional = true }
 critical-section = "1.1"
 atomic-polyfill = "1.0.1"
-stm32-metapac = { version = "1", features = ["rt"] }
+stm32-metapac = "1"
 vcell = "0.1.3"
 bxcan = "0.7.0"
 nb = "1.0.0"
@@ -69,12 +69,16 @@ seq-macro = "0.3.0"
 cfg-if = "1.0.0"
 embedded-io = { version = "0.4.0", features = ["async"], optional = true }
 
+[dev-dependencies]
+critical-section = { version = "1.1", features = ["std"] }
+
 [build-dependencies]
 proc-macro2 = "1.0.36"
 quote = "1.0.15"
 stm32-metapac = { version = "1", default-features = false, features = ["metadata"]}
 
 [features]
+default = ["stm32-metapac/rt"]
 defmt = ["dep:defmt", "bxcan/unstable-defmt", "embassy-sync/defmt", "embassy-executor/defmt", "embassy-embedded-hal/defmt", "embassy-hal-common/defmt", "embedded-io?/defmt", "embassy-usb-driver?/defmt", "embassy-net-driver/defmt"]
 memory-x = ["stm32-metapac/memory-x"]
 subghz = []
diff --git a/embassy-stm32/src/flash/f4.rs b/embassy-stm32/src/flash/f4.rs
index 7428fd572..0fdfecb96 100644
--- a/embassy-stm32/src/flash/f4.rs
+++ b/embassy-stm32/src/flash/f4.rs
@@ -2,12 +2,15 @@ use core::convert::TryInto;
 use core::ptr::write_volatile;
 use core::sync::atomic::{fence, Ordering};
 
-use embassy_hal_common::stm32::flash::f4::{get_sector, SECOND_BANK_SECTOR_OFFSET};
-
-use super::{FLASH_SIZE, WRITE_SIZE};
+use super::{FlashSector, FLASH_BASE, FLASH_SIZE, WRITE_SIZE};
 use crate::flash::Error;
 use crate::pac;
 
+const SMALL_SECTOR_SIZE: u32 = 16 * 1024;
+const MEDIUM_SECTOR_SIZE: u32 = 64 * 1024;
+const LARGE_SECTOR_SIZE: u32 = 128 * 1024;
+const SECOND_BANK_SECTOR_OFFSET: u8 = 12;
+
 fn is_dual_bank() -> bool {
     match FLASH_SIZE / 1024 {
         // 1 MB devices depend on configuration
@@ -141,3 +144,110 @@ unsafe fn blocking_wait_ready() -> Result<(), Error> {
         }
     }
 }
+
+fn get_sector(address: u32, dual_bank: bool, flash_size: u32) -> FlashSector {
+    let offset = address - FLASH_BASE as u32;
+    if !dual_bank {
+        get_single_bank_sector(offset)
+    } else {
+        let bank_size = flash_size / 2;
+        if offset < bank_size {
+            get_single_bank_sector(offset)
+        } else {
+            let sector = get_single_bank_sector(offset - bank_size);
+            FlashSector {
+                index: SECOND_BANK_SECTOR_OFFSET + sector.index,
+                start: sector.start + bank_size,
+                size: sector.size,
+            }
+        }
+    }
+}
+
+fn get_single_bank_sector(offset: u32) -> FlashSector {
+    // First 4 sectors are 16KB, then one 64KB, and rest are 128KB
+    match offset / LARGE_SECTOR_SIZE {
+        0 => {
+            if offset < 4 * SMALL_SECTOR_SIZE {
+                let small_sector_index = offset / SMALL_SECTOR_SIZE;
+                FlashSector {
+                    index: small_sector_index as u8,
+                    start: FLASH_BASE as u32 + small_sector_index * SMALL_SECTOR_SIZE,
+                    size: SMALL_SECTOR_SIZE,
+                }
+            } else {
+                FlashSector {
+                    index: 4,
+                    start: FLASH_BASE as u32 + 4 * SMALL_SECTOR_SIZE,
+                    size: MEDIUM_SECTOR_SIZE,
+                }
+            }
+        }
+        i => {
+            let large_sector_index = i - 1;
+            FlashSector {
+                index: (5 + large_sector_index) as u8,
+                start: FLASH_BASE as u32 + 4 * SMALL_SECTOR_SIZE + MEDIUM_SECTOR_SIZE + large_sector_index * LARGE_SECTOR_SIZE,
+                size: LARGE_SECTOR_SIZE,
+            }
+        }
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn can_get_sector_single_bank() {
+        let assert_sector = |index: u8, start: u32, size: u32, addr: u32| {
+            assert_eq!(FlashSector { index, start, size }, get_sector(addr, false, 1024 * 1024))
+        };
+
+        assert_sector(0, 0x0800_0000, SMALL_SECTOR_SIZE, 0x0800_0000);
+        assert_sector(0, 0x0800_0000, SMALL_SECTOR_SIZE, 0x0800_3FFF);
+        assert_sector(3, 0x0800_C000, SMALL_SECTOR_SIZE, 0x0800_C000);
+        assert_sector(3, 0x0800_C000, SMALL_SECTOR_SIZE, 0x0800_FFFF);
+
+        assert_sector(4, 0x0801_0000, MEDIUM_SECTOR_SIZE, 0x0801_0000);
+        assert_sector(4, 0x0801_0000, MEDIUM_SECTOR_SIZE, 0x0801_FFFF);
+
+        assert_sector(5, 0x0802_0000, LARGE_SECTOR_SIZE, 0x0802_0000);
+        assert_sector(5, 0x0802_0000, LARGE_SECTOR_SIZE, 0x0803_FFFF);
+        assert_sector(11, 0x080E_0000, LARGE_SECTOR_SIZE, 0x080E_0000);
+        assert_sector(11, 0x080E_0000, LARGE_SECTOR_SIZE, 0x080F_FFFF);
+    }
+
+    #[test]
+    fn can_get_sector_dual_bank() {
+        let assert_sector = |index: u8, start: u32, size: u32, addr: u32| {
+            assert_eq!(FlashSector { index, start, size }, get_sector(addr, true, 1024 * 1024))
+        };
+
+        assert_sector(0, 0x0800_0000, SMALL_SECTOR_SIZE, 0x0800_0000);
+        assert_sector(0, 0x0800_0000, SMALL_SECTOR_SIZE, 0x0800_3FFF);
+        assert_sector(3, 0x0800_C000, SMALL_SECTOR_SIZE, 0x0800_C000);
+        assert_sector(3, 0x0800_C000, SMALL_SECTOR_SIZE, 0x0800_FFFF);
+
+        assert_sector(4, 0x0801_0000, MEDIUM_SECTOR_SIZE, 0x0801_0000);
+        assert_sector(4, 0x0801_0000, MEDIUM_SECTOR_SIZE, 0x0801_FFFF);
+
+        assert_sector(5, 0x0802_0000, LARGE_SECTOR_SIZE, 0x0802_0000);
+        assert_sector(5, 0x0802_0000, LARGE_SECTOR_SIZE, 0x0803_FFFF);
+        assert_sector(7, 0x0806_0000, LARGE_SECTOR_SIZE, 0x0806_0000);
+        assert_sector(7, 0x0806_0000, LARGE_SECTOR_SIZE, 0x0807_FFFF);
+
+        assert_sector(12, 0x0808_0000, SMALL_SECTOR_SIZE, 0x0808_0000);
+        assert_sector(12, 0x0808_0000, SMALL_SECTOR_SIZE, 0x0808_3FFF);
+        assert_sector(15, 0x0808_C000, SMALL_SECTOR_SIZE, 0x0808_C000);
+        assert_sector(15, 0x0808_C000, SMALL_SECTOR_SIZE, 0x0808_FFFF);
+
+        assert_sector(16, 0x0809_0000, MEDIUM_SECTOR_SIZE, 0x0809_0000);
+        assert_sector(16, 0x0809_0000, MEDIUM_SECTOR_SIZE, 0x0809_FFFF);
+
+        assert_sector(17, 0x080A_0000, LARGE_SECTOR_SIZE, 0x080A_0000);
+        assert_sector(17, 0x080A_0000, LARGE_SECTOR_SIZE, 0x080B_FFFF);
+        assert_sector(19, 0x080E_0000, LARGE_SECTOR_SIZE, 0x080E_0000);
+        assert_sector(19, 0x080E_0000, LARGE_SECTOR_SIZE, 0x080F_FFFF);
+    }
+}
diff --git a/embassy-stm32/src/flash/f7.rs b/embassy-stm32/src/flash/f7.rs
index 16b684580..0d3b738c6 100644
--- a/embassy-stm32/src/flash/f7.rs
+++ b/embassy-stm32/src/flash/f7.rs
@@ -2,12 +2,14 @@ use core::convert::TryInto;
 use core::ptr::write_volatile;
 use core::sync::atomic::{fence, Ordering};
 
-use embassy_hal_common::stm32::flash::f7::get_sector;
-
-use super::WRITE_SIZE;
+use super::{FlashSector, FLASH_BASE, WRITE_SIZE};
 use crate::flash::Error;
 use crate::pac;
 
+const SMALL_SECTOR_SIZE: u32 = 32 * 1024;
+const MEDIUM_SECTOR_SIZE: u32 = 128 * 1024;
+const LARGE_SECTOR_SIZE: u32 = 256 * 1024;
+
 pub(crate) unsafe fn lock() {
     pac::FLASH.cr().modify(|w| w.set_lock(true));
 }
@@ -129,3 +131,59 @@ unsafe fn blocking_wait_ready() -> Result<(), Error> {
         }
     }
 }
+
+fn get_sector(address: u32) -> FlashSector {
+    // First 4 sectors are 32KB, then one 128KB, and rest are 256KB
+    let offset = address - FLASH_BASE as u32;
+    match offset / LARGE_SECTOR_SIZE {
+        0 => {
+            if offset < 4 * SMALL_SECTOR_SIZE {
+                let small_sector_index = offset / SMALL_SECTOR_SIZE;
+                FlashSector {
+                    index: small_sector_index as u8,
+                    start: FLASH_BASE as u32 + small_sector_index * SMALL_SECTOR_SIZE,
+                    size: SMALL_SECTOR_SIZE,
+                }
+            } else {
+                FlashSector {
+                    index: 4,
+                    start: FLASH_BASE as u32 + 4 * SMALL_SECTOR_SIZE,
+                    size: MEDIUM_SECTOR_SIZE,
+                }
+            }
+        }
+        i => {
+            let large_sector_index = i - 1;
+            FlashSector {
+                index: (5 + large_sector_index) as u8,
+                start: FLASH_BASE as u32 + 4 * SMALL_SECTOR_SIZE + MEDIUM_SECTOR_SIZE + large_sector_index * LARGE_SECTOR_SIZE,
+                size: LARGE_SECTOR_SIZE,
+            }
+        }
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn can_get_sector() {
+        let assert_sector = |index: u8, start: u32, size: u32, addr: u32| {
+            assert_eq!(FlashSector { index, start, size }, get_sector(addr))
+        };
+
+        assert_sector(0, 0x0800_0000, SMALL_SECTOR_SIZE, 0x0800_0000);
+        assert_sector(0, 0x0800_0000, SMALL_SECTOR_SIZE, 0x0800_7FFF);
+        assert_sector(3, 0x0801_8000, SMALL_SECTOR_SIZE, 0x0801_8000);
+        assert_sector(3, 0x0801_8000, SMALL_SECTOR_SIZE, 0x0801_FFFF);
+
+        assert_sector(4, 0x0802_0000, MEDIUM_SECTOR_SIZE, 0x0802_0000);
+        assert_sector(4, 0x0802_0000, MEDIUM_SECTOR_SIZE, 0x0803_FFFF);
+
+        assert_sector(5, 0x0804_0000, LARGE_SECTOR_SIZE, 0x0804_0000);
+        assert_sector(5, 0x0804_0000, LARGE_SECTOR_SIZE, 0x0807_FFFF);
+        assert_sector(7, 0x080C_0000, LARGE_SECTOR_SIZE, 0x080C_0000);
+        assert_sector(7, 0x080C_0000, LARGE_SECTOR_SIZE, 0x080F_FFFF);
+    }
+}
diff --git a/embassy-stm32/src/flash/mod.rs b/embassy-stm32/src/flash/mod.rs
index 1294ace4d..6906bd09a 100644
--- a/embassy-stm32/src/flash/mod.rs
+++ b/embassy-stm32/src/flash/mod.rs
@@ -19,6 +19,13 @@ pub struct Flash<'d> {
     _inner: PeripheralRef<'d, FLASH>,
 }
 
+#[derive(Debug, PartialEq)]
+pub struct FlashSector {
+    pub index: u8,
+    pub start: u32,
+    pub size: u32,
+}
+
 static REGION_LOCK: Mutex<CriticalSectionRawMutex, ()> = Mutex::new(());
 
 impl<'d> Flash<'d> {