Trait Print 

pub trait Print {
    // Required methods
    fn print_updating(&self);
    fn print_pre_installing(&self);
    fn print_installing(&self);
    fn print_pre_removing(&self);
    fn print_removing(&self);
    fn print_documenting(&self);
    fn print_updating_pkg_versions(&self, name: &PkgName, is_done: bool);
    fn print_downloading_pkg_file(
        &self,
        name: &PkgName,
        is_done: bool,
    ) -> Result<()>;
    fn print_downloading_pkg_file_with_progress(
        &self,
        name: &PkgName,
        byte_count: f64,
        total_byte_count: f64,
    ) -> Result<()>;
    fn print_extracting_pkg_file(&self, name: &PkgName, is_done: bool);
    fn print_checking_dependent_version_reqs(&self, is_done: bool);
    fn print_searching_path_conflicts(&self, is_done: bool);
    fn print_documenting_pkg(&self, name: &PkgName, is_done: bool);
    fn print_installing_pkg(&self, name: &PkgName, is_done: bool);
    fn print_removing_pkg(&self, name: &PkgName, is_done: bool);
    fn print_removing_pkg_doc(&self, name: &PkgName, is_done: bool);
    fn print_cleaning_after_install(&self, is_done: bool);
    fn print_cleaning_before_removal(&self, is_done: bool);
    fn print_cleaning_after_error(&self, is_done: bool);
    fn print_cleaning(&self, is_done: bool);
    fn print_lf_for_error(&self);
    fn eprint_error(&self, err: &Error);
}

A printer trait.

The printer prints messages for a package manager. Some methods of printer has the done flag. the flag should be set if an operation is completed, othersise the flag should be unset.

Required Methods

fn print_updating(&self)

Prints the “Updating:” message.

fn print_pre_installing(&self)

Prints the “Pre-installing:” message.

fn print_installing(&self)

Prints the “Installing:” message.

fn print_pre_removing(&self)

Prints the “Pre-removing:” message.

fn print_removing(&self)

Prints the “Removing:” message.

fn print_documenting(&self)

Prints the “Documenting:” message.

fn print_updating_pkg_versions(&self, name: &PkgName, is_done: bool)

Prints the “Updating package …” message.

fn print_downloading_pkg_file( &self, name: &PkgName, is_done: bool, ) -> Result<()>

Prints the “Downloading package …” message.

fn print_downloading_pkg_file_with_progress( &self, name: &PkgName, byte_count: f64, total_byte_count: f64, ) -> Result<()>

Prints the “Downloading package …” message with progress.

fn print_extracting_pkg_file(&self, name: &PkgName, is_done: bool)

Prints the “Extracting package …” message.

fn print_checking_dependent_version_reqs(&self, is_done: bool)

Prints the “Checking dependent version requirements …” message.

fn print_searching_path_conflicts(&self, is_done: bool)

Prints the “Searching path conflicts …” message.

fn print_documenting_pkg(&self, name: &PkgName, is_done: bool)

Prints the “Documenting package …” message.

fn print_installing_pkg(&self, name: &PkgName, is_done: bool)

Prints the “Installing package …” message.

fn print_removing_pkg(&self, name: &PkgName, is_done: bool)

Prints the “Removing package …” message.

fn print_removing_pkg_doc(&self, name: &PkgName, is_done: bool)

Prints the “Removing package documentation …” message.

fn print_cleaning_after_install(&self, is_done: bool)

Prints the “Cleaning after installation …” message.

fn print_cleaning_before_removal(&self, is_done: bool)

Prints the “Cleaning before removal …” messgage.

fn print_cleaning_after_error(&self, is_done: bool)

Prints the “Cleaning after error …” message.

fn print_cleaning(&self, is_done: bool)

Prints the “Cleaning …” message.

fn print_lf_for_error(&self)

Prints the newline character for an occurred error.

fn eprint_error(&self, err: &Error)

Prints the error.

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors

impl Print for EmptyPrinter

impl Print for StdPrinter