Struct Table

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pub struct Table { /* private fields */ }
Expand description

Helper to print counters as a table in csv format.

§Example

use counters::*;
 
let counters = Counters::new();
let table = Table::new(&["foo", "bar", "meh"]);
 
for _ in 0..5 {
    counters.event("bar");
}
counters.event("foo");
 
// "baz" isn't in the table labels, it will be ignored.
counters.event("baz");
 
table.add_row(&counters);
 
// Start a second row...
counters.reset_all();
 
counters.event("foo");
 
table.add_row(&counters);

// This prints the following to stdout:
// foo,bar,meh
// 1,5,0
// 1,0,0
table.print_to_stdout();

Implementations§

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impl Table

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pub fn new(label_slice: &[&'static str]) -> Self

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pub fn add_row(&self, row: &Counters) -> usize

Add collected counters as a row, preserving only the counters that match this table’s labels.

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pub fn print(&self, to: &mut dyn Write) -> Result<()>

Print in csv format to an io stream.

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pub fn print_to_stdout(&self)

Print in csv format to stdout.

Trait Implementations§

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impl Clone for Table

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fn clone(&self) -> Table

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for Table

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more

Auto Trait Implementations§

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impl !Freeze for Table

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impl !RefUnwindSafe for Table

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impl Send for Table

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impl !Sync for Table

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impl Unpin for Table

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impl UnwindSafe for Table

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.