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Specify function object canonicalization #1686

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Jun 28, 2021
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Specify function object canonicalization #1686

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25 changes: 25 additions & 0 deletions specification/dartLangSpec.tex
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Expand Up @@ -12844,6 +12844,17 @@ \subsection{Function Closurization}
(\ref{statementCompletion})
as the invocation of $f$ would have yielded.

\LMHash{}%
Let $e_1$ and $e_2$ be two constant expressions that both
evaluate to a function object which is obtained by function closurization
of the same function declaration.
In this case \code{identical($e_1$, $e_2$)} shall evaluate to true.

\commentary{%
That is, constant expressions whose evaluation is a function closurization
are canonicalized.%
}


\subsubsection{Generic Function Instantiation}
\LMLabel{genericFunctionInstantiation}
Expand Down Expand Up @@ -13056,6 +13067,20 @@ \subsubsection{Generic Function Instantiation}
}
\EndCase

\LMHash{}%
Let $e_1$ and $e_2$ be two constant expressions that both
evaluate to a function object
which is obtained by generic function instantiation
of the same function declaration
and with the same type arguments.
In this case \code{identical($e_1$, $e_2$)} shall evaluate to true.

\commentary{%
That is, constant expressions whose evaluation is
a generic function instantiation
are canonicalized.%
}


\subsection{Lookup}
\LMLabel{lookup}
Expand Down