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go spec: method names must be unique

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Fixes #2916.

R=golang-dev, remyoudompheng, r, rsc
CC=golang-dev
https://golang.org/cl/5652064
This commit is contained in:
Robert Griesemer 2012-02-12 20:03:30 -08:00
parent 6fa2296e83
commit b1d9ae9406
1 changed files with 20 additions and 11 deletions
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31
doc/go_spec.html
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@ -662,7 +662,7 @@ The method set of the corresponding pointer type <code>*T</code>
is the set of all methods with receiver <code>*T</code> or <code>T</code>
(that is, it also contains the method set of <code>T</code>).
Any other type has an empty method set.
In a method set, each method must have a unique name.
In a method set, each method must have a unique <a href="#MethodName">method name</a>.
</p>
<p>
@ -1862,11 +1862,13 @@ they can be used to declare local temporary variables (§<a href="#Statements">S
<h3 id="Function_declarations">Function declarations</h3>
<p>
A function declaration binds an identifier to a function (§<a href="#Function_types">Function types</a>).
A function declaration binds an identifier, the <i>function name</i>,
to a function.
</p>
<pre class="ebnf">
FunctionDecl = "func" identifier Signature [ Body ] .
FunctionDecl = "func" FunctionName Signature [ Body ] .
FunctionName = identifier .
Body = Block .
</pre>
@ -1890,8 +1892,10 @@ func flushICache(begin, end uintptr) // implemented externally
<p>
A method is a function with a <i>receiver</i>.
A method declaration binds an identifier to a method.
A method declaration binds an identifier, the <i>method name</i>, to a method.
It also associates the method with the receiver's <i>base type</i>.
</p>
<pre class="ebnf">
MethodDecl = "func" Receiver MethodName Signature [ Body ] .
Receiver = "(" [ identifier ] [ "*" ] BaseTypeName ")" .
@ -1900,13 +1904,18 @@ BaseTypeName = identifier .
<p>
The receiver type must be of the form <code>T</code> or <code>*T</code> where
<code>T</code> is a type name. <code>T</code> is called the
<i>receiver base type</i> or just <i>base type</i>.
The base type must not be a pointer or interface type and must be
declared in the same package as the method.
The method is said to be <i>bound</i> to the base type
and is visible only within selectors for that type
(§<a href="#Type_declarations">Type declarations</a>, §<a href="#Selectors">Selectors</a>).
<code>T</code> is a type name. The type denoted by <code>T</code> is called
the receiver <i>base type</i>; it must not be a pointer or interface type and
it must be declared in the same package as the method.
The method is said to be <i>bound</i> to the base type and the method name
is visible only within selectors for that type.
</p>
<p>
For a base type, the non-<a href="#Blank_identifier">blank</a> names of
methods bound to it must be unique.
If the base type is a <a href="#Struct_types">struct type</a>,
the non-blank method and field names must be distinct.
</p>
<p>