pub enum Atomicity {
Atomic,
CompoundAtomic,
NonAtomic,
}
Expand description
prevents implicit whitespace: inside an atomic rule,
the tilde ~ means “immediately followed by”,
and repetition operators (asterisk * and plus sign +)
have no implicit separation. In addition, all other rules
called from an atomic rule are also treated as atomic.
(interior matching rules are silent)
The same as atomic, but inner tokens are produced as normal.
implicit whitespace is enabled
Performs copy-assignment from
source
.
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Formats the value using the given formatter.
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This method tests for
self
and
other
values to be equal, and is used
by
==
.
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This method tests for
!=
. The default implementation is almost always
sufficient, and should not be overridden without very good reason.
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Immutably borrows from an owned value.
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Mutably borrows from an owned value.
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Returns the argument unchanged.
Calls U::from(self)
.
That is, this conversion is whatever the implementation of
From<T> for U
chooses to do.
The resulting type after obtaining ownership.
Creates owned data from borrowed data, usually by cloning.
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Uses borrowed data to replace owned data, usually by cloning.
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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.