Struct core::fmt::builders::DebugMap
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#[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.