Method push

crates/wasmtime/src/runtime/store/func_refs.rs:90–109

Push the given `VMFuncRef` into this arena, returning a pinned pointer to it. # Safety You may only access the return value on the same thread as this `FuncRefs` and only while the store holding this `FuncRefs` exists. Additionally the `vmctx` field of `func_ref` must be valid to read.

(
        &mut self,
        func_ref: VMFuncRef,
        modules: &ModuleRegistry,
    )

    /// `FuncRefs` and only while the store holding this `FuncRefs` exists.
    /// Additionally the `vmctx` field of `func_ref` must be valid to read.
    pub unsafe fn push(
        &mut self,
        func_ref: VMFuncRef,
        modules: &ModuleRegistry,
    ) -> Result<NonNull<VMFuncRef>, OutOfMemory> {
        debug_assert!(func_ref.wasm_call.is_none());
        let func_ref = self
            .bump
            .get_mut()
            .try_alloc(func_ref)
            .map_err(|_| OutOfMemory::new(size_of::<VMFuncRef>()))?;
        // SAFETY: it's a contract of this function itself that `func_ref` has a
        // valid vmctx field to read.
        let has_hole = unsafe { !try_fill(func_ref, modules) };
        let unpatched = SendSyncPtr::from(func_ref);
        if has_hole {
            self.with_holes.push(unpatched)?;
        }
        Ok(unpatched.as_non_null())
    }

    /// Patch any `VMFuncRef::wasm_call`s that need filling in.
    pub fn fill(&mut self, modules: &ModuleRegistry) {