Enum glib::OptionArg[][src]

#[non_exhaustive]
pub enum OptionArg {
    None,
    String,
    Int,
    Callback,
    Filename,
    StringArray,
    FilenameArray,
    Double,
    Int64,
    // some variants omitted
}
Expand description

The OptionArg enum values determine which type of extra argument the options expect to find. If an option expects an extra argument, it can be specified in several ways; with a short option: -x arg, with a long option: --name arg or combined in a single argument: --name=arg.

Variants (Non-exhaustive)

This enum is marked as non-exhaustive
Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.
None

No extra argument. This is useful for simple flags.

String

The option takes a UTF-8 string argument.

Int

The option takes an integer argument.

Callback

The option provides a callback (of type GOptionArgFunc) to parse the extra argument.

Filename

The option takes a filename as argument, which will be in the GLib filename encoding rather than UTF-8.

StringArray

The option takes a string argument, multiple uses of the option are collected into an array of strings.

FilenameArray

The option takes a filename as argument, multiple uses of the option are collected into an array of strings.

Double

The option takes a double argument. The argument can be formatted either for the user’s locale or for the “C” locale. Since 2.12

Int64

The option takes a 64-bit integer. Like Int but for larger numbers. The number can be in decimal base, or in hexadecimal (when prefixed with 0x, for example, 0xffffffff). Since 2.12

Trait Implementations

Returns a copy of the value. Read more

Performs copy-assignment from source. Read more

Formats the value using the given formatter. Read more

Formats the value using the given formatter. Read more

Feeds this value into the given Hasher. Read more

Feeds a slice of this type into the given Hasher. Read more

This method returns an Ordering between self and other. Read more

Compares and returns the maximum of two values. Read more

Compares and returns the minimum of two values. Read more

Restrict a value to a certain interval. Read more

This method tests for self and other values to be equal, and is used by ==. Read more

This method tests for !=.

This method returns an ordering between self and other values if one exists. Read more

This method tests less than (for self and other) and is used by the < operator. Read more

This method tests less than or equal to (for self and other) and is used by the <= operator. Read more

This method tests greater than (for self and other) and is used by the > operator. Read more

This method tests greater than or equal to (for self and other) and is used by the >= operator. Read more

Auto Trait Implementations

Blanket Implementations

Gets the TypeId of self. Read more

Immutably borrows from an owned value. Read more

Mutably borrows from an owned value. Read more

Performs the conversion.

Performs the conversion.

The resulting type after obtaining ownership.

Creates owned data from borrowed data, usually by cloning. Read more

🔬 This is a nightly-only experimental API. (toowned_clone_into)

recently added

Uses borrowed data to replace owned data, usually by cloning. Read more

Converts the given value to a String. Read more

The type returned in the event of a conversion error.

Performs the conversion.

The type returned in the event of a conversion error.

Performs the conversion.