Struct core::fmt::DebugMap [−] [src]

#[must_use]
pub struct DebugMap<'a, 'b> {
    fmt: &'a mut Formatter<'b>,
    result: Result,
    has_fields: bool,
}

A struct to help with fmt::Debug implementations.

Constructed by the Formatter::debug_map method.

Fields

fmt
result
has_fields

Methods

impl<'a, 'b> DebugMap<'a, 'b>

fn entry(&mut self, key: &Debug, value: &Debug) -> &mut DebugMap<'a, 'b>

Adds a new entry to the map output.

fn entries<K, V, I>(&mut self, entries: I) -> &mut DebugMap<'a, 'b> where K: Debug, V: Debug, I: IntoIterator<Item=(K, V)>

Adds the contents of an iterator of entries to the map output.

fn finish(&mut self) -> Result

Finishes output and returns any error encountered.

fn is_pretty(&self) -> bool