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main function may take an argument.

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R=lrn@google.com

Review URL: https://codereview.chromium.org//280473004

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@36450 260f80e4-7a28-3924-810f-c04153c831b5
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gbracha@google.com
2014-05-21 20:57:25 +00:00
parent 5d277649fd
commit 6ef09c32dd
1 changed files with 8 additions and 2 deletions
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docs/language/dartLangSpec.tex
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@@ -5223,10 +5223,16 @@ Compiling a part directive of the form \code{\PART{} $s$;} causes the Dart syste
A {\em script} is a library whose exported namespace (\ref{exports}) includes a top-level function \code{main}.
A script $S$ may be executed as follows:
First, $S$ is compiled as a library as specified above. Then, the top-level function \code{main} that is in the exported namespace of $S$ is invoked. If \code{main} has no formal parameters, it is invoked with no arguments. Otherwise \code{main} is invoked with a single actual argument whose type implements \code{List$<$String$>$}. It is a run time error if $S$ does not declare or import a top-level function \code{main}. It is a static warning if \code{main} has more than one required parameter.
First, $S$ is compiled as a library as specified above. Then, the top-level function \code{main} that is in the exported namespace of $S$ is invoked. If \code{main} has no positional parameters, it is invoked with no arguments. Otherwise if \code{main} has exactly one positional parameter, it is invoked with a single actual argument whose runtime type implements \code{List$<$String$>$}. Otherwise \code{main} is invoked with the following two actual arguments:
\begin{enumerate}
\item An object whose runtime type implements \code{List$<$String$>$}.
\item The initial message of the current isolate $i$ as determined by the invocation of \code{Isolate.spawnUri} that spawned $i$.
\end{enumerate}
It is a run time error if $S$ does not declare or import a top-level function \code{main}. It is a static warning if \code{main} has more than two required parameters.
\commentary {
If \code{main} requires more than one argument, a run time error will occur.
Note that if \code{main} requires more than two arguments, a run time error will occur.
}
\rationale{