Method declare_function

cranelift/filetests/src/function_runner.rs:184–205

Declares a function an registers it as a linkable and callable target internally

(&mut self, func: &Function)

    /// Declares a function an registers it as a linkable and callable target internally
    pub fn declare_function(&mut self, func: &Function) -> Result<()> {
        let next_id = self.defined_functions.len() as u32;
        match self.defined_functions.entry(func.name.clone()) {
            Entry::Occupied(_) => {
                anyhow::bail!("Duplicate function with name {} found!", &func.name)
            }
            Entry::Vacant(v) => {
                let name = func.name.to_string();
                let func_id =
                    self.module
                        .declare_function(&name, Linkage::Local, &func.signature)?;

                v.insert(DefinedFunction {
                    new_name: UserExternalName::new(TESTFILE_NAMESPACE, next_id),
                    signature: func.signature.clone(),
                    func_id,
                });
            }
        };

        Ok(())
    }

    /// Renames the function to its new [UserExternalName], as well as any other function that
    /// it may reference.