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spec: clarify lhs syntax for range and select

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Fixes #4653.

R=rsc, r, iant, ken, thakis
CC=golang-dev
https://golang.org/cl/7135058
This commit is contained in:
Robert Griesemer 2013-01-18 13:59:25 -08:00
parent 059fed3dfb
commit d3679726b4
1 changed files with 3 additions and 3 deletions
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6
doc/go_spec.html
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@ -1,6 +1,6 @@
<!--{
"Title": "The Go Programming Language Specification",
"Subtitle": "Version of January 11, 2013",
"Subtitle": "Version of January 18, 2013",
"Path": "/ref/spec"
}-->
@ -4353,7 +4353,7 @@ to corresponding <i>iteration variables</i> and then executes the block.
</p>
<pre class="ebnf">
RangeClause = Expression [ "," Expression ] ( "=" | ":=" ) "range" Expression .
RangeClause = ( ExpressionList "=" | IdentifierList ":=" ) "range" Expression .
</pre>
<p>
@ -4522,7 +4522,7 @@ cases all referring to communication operations.
SelectStmt = "select" "{" { CommClause } "}" .
CommClause = CommCase ":" { Statement ";" } .
CommCase = "case" ( SendStmt | RecvStmt ) | "default" .
RecvStmt = [ Expression [ "," Expression ] ( "=" | ":=" ) ] RecvExpr .
RecvStmt = [ ExpressionList "=" | IdentifierList ":=" ] RecvExpr .
RecvExpr = Expression .
</pre>