diff options
Diffstat (limited to 'Doc/ref/ref3.tex')
| -rw-r--r-- | Doc/ref/ref3.tex | 48 |
1 files changed, 24 insertions, 24 deletions
diff --git a/Doc/ref/ref3.tex b/Doc/ref/ref3.tex index c06e54d..2eb5739 100644 --- a/Doc/ref/ref3.tex +++ b/Doc/ref/ref3.tex @@ -12,7 +12,7 @@ program is represented by objects or by relations between objects. Every object has an identity, a type and a value. An object's \emph{identity} never changes once it has been created; you may think -of it as the object's address in memory. The `\code{is}' operator +of it as the object's address in memory. The `\keyword{is}' operator compares the identity of two objects; the \function{id()}\bifuncindex{id} function returns an integer representing its identity (currently implemented as its address). @@ -1540,10 +1540,10 @@ original arguments to the operation. \item -New-style classes (those derived from \code{object}) never invoke the -\code{__coerce__} method in response to a binary operator; the only -time \code{__coerce__} is invoked is when the built-in function -\code{coerce()} is called. +New-style classes (those derived from \class{object}) never invoke the +\method{__coerce__()} method in response to a binary operator; the only +time \method{__coerce__()} is invoked is when the built-in function +\function{coerce()} is called. \item @@ -1565,7 +1565,7 @@ binary operator, and \method{__iadd__} for the in-place variant. For objects \var{x} and \var{y}, first \code{\var{x}.__op__(\var{y})} is tried. If this is not implemented or returns \code{NotImplemented}, \code{\var{y}.__rop__(\var{x})} is tried. If this is also not -implemented or returns \code{NotImplemented}, a \code{TypeError} +implemented or returns \code{NotImplemented}, a \exception{TypeError} exception is raised. But see the following exception: \item @@ -1573,8 +1573,8 @@ exception is raised. But see the following exception: Exception to the previous item: if the left operand is an instance of a built-in type or a new-style class, and the right operand is an instance of a proper subclass of that type or class, the right -operand's \code{__rop__} method is tried \emph{before} the left -operand's \code{__op__} method. This is done so that a subclass can +operand's \method{__rop__()} method is tried \emph{before} the left +operand's \method{__op__()} method. This is done so that a subclass can completely override binary operators. Otherwise, the left operand's __op__ method would always accept the right operand: when an instance of a given class is expected, an instance of a subclass of that class @@ -1583,17 +1583,17 @@ is always acceptable. \item When either operand type defines a coercion, this coercion is called -before that type's \code{__op__} or \code{__rop__} method is called, -but no sooner. If the coercion returns an object of a different type -for the operand whose coercion is invoked, part of the process is -redone using the new object. +before that type's \method{__op__()} or \method{__rop__()} method is +called, but no sooner. If the coercion returns an object of a +different type for the operand whose coercion is invoked, part of the +process is redone using the new object. \item When an in-place operator (like `\code{+=}') is used, if the left -operand implements \code{__iop__}, it is invoked without any coercion. -When the operation falls back to \code{__op__} and/or \code{__rop__}, -the normal coercion rules apply. +operand implements \method{__iop__()}, it is invoked without any +coercion. When the operation falls back to \method{__op__()} and/or +\method{__rop__()}, the normal coercion rules apply. \item @@ -1604,23 +1604,23 @@ sequence concatenation, sequence concatenation is invoked. In \var{x}\code{*}\var{y}, if one operator is a sequence that implements sequence repetition, and the other is an integer -(\code{int} or \code{long}), sequence repetition is invoked. +(\class{int} or \class{long}), sequence repetition is invoked. \item -Rich comparisons (implemented by methods \code{__eq__} and so on) +Rich comparisons (implemented by methods \method{__eq__()} and so on) never use coercion. Three-way comparison (implemented by -\code{__cmp__}) does use coercion under the same conditions as +\method{__cmp__()}) does use coercion under the same conditions as other binary operations use it. \item -In the current implementation, the built-in numeric types \code{int}, -\code{long} and \code{float} do not use coercion; the type -\code{complex} however does use it. The difference can become +In the current implementation, the built-in numeric types \class{int}, +\class{long} and \class{float} do not use coercion; the type +\class{complex} however does use it. The difference can become apparent when subclassing these types. Over time, the type -\code{complex} may be fixed to avoid coercion. All these types -implement a \code{__coerce__} method, for use by the built-in -\code{coerce} function. +\class{complex} may be fixed to avoid coercion. All these types +implement a \method{__coerce__()} method, for use by the built-in +\function{coerce()} function. \end{itemize} |