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rust: rework portref_cell

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Lofty 2024-01-16 02:57:47 +00:00 committed by myrtle
parent dfd651a132
commit 14a09061a5
1 changed files with 3 additions and 4 deletions
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7
rust/nextpnr/src/lib.rs
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@ -61,9 +61,8 @@ pub struct PortRef {
} }
impl PortRef { impl PortRef {
pub fn cell_mut(&mut self) -> Option<&mut CellInfo> { pub fn cell(&self) -> Option<&CellInfo> {
// SAFETY: handing out &mut is safe when we have &mut self // SAFETY: handing out &s is safe when we have &self.
// as getting multiple &mut CellInfo would require multiple &mut PortRef.
unsafe { npnr_portref_cell(self) } unsafe { npnr_portref_cell(self) }
} }
} }
@ -419,7 +418,7 @@ extern "C" {
fn npnr_netinfo_udata(net: &NetInfo) -> NetIndex; fn npnr_netinfo_udata(net: &NetInfo) -> NetIndex;
fn npnr_netinfo_udata_set(net: &mut NetInfo, value: NetIndex); fn npnr_netinfo_udata_set(net: &mut NetInfo, value: NetIndex);
fn npnr_portref_cell(port: &mut PortRef) -> Option<&mut CellInfo>; fn npnr_portref_cell(port: &PortRef) -> Option<&CellInfo>;
fn npnr_cellinfo_get_location(info: &CellInfo) -> Loc; fn npnr_cellinfo_get_location(info: &CellInfo) -> Loc;
fn npnr_inc_downhill_iter(iter: &mut RawDownhillIter); fn npnr_inc_downhill_iter(iter: &mut RawDownhillIter);