Erik Ernst
614ae7f362
Also updated spec on the static and dynamic types of functions literals and static functions along with the function objects obtained from closurizations of them. Introduced a separate notion of what it means to be a correct override relation (where the old text used subtyping, which won't suffice, for several reasons). Introduced the notion of interfaces as a separate kind of entity that contains method signatures (again, a new kind of entity), thus clarifying exactly which pieces of information is available during static analysis of member accesses, e.g., instance method invocations. Introduced 'combined' interfaces; they are needed for `mixin` declarations, and we will specify them soon (so it should be OK to have them now, even though they are unused). Change-Id: I6347df49b1aa7a81d74e25904ee75c19e8ac6930 Reviewed-on: https://dart-review.googlesource.com/c/81263 Reviewed-by: Leaf Petersen <leafp@google.com>
268 lines
9.6 KiB
TeX
268 lines
9.6 KiB
TeX
\def\builtinId#1{\textsf{\textbf{#1}}}
|
|
\def\keyword#1{\textsf{\textbf{#1}}}
|
|
\def\metavar#1{\ensuremath{\mathit{#1}}}
|
|
|
|
\def\ABSTRACT{\builtinId{abstract}}
|
|
\def\AS{\builtinId{as}}
|
|
\def\COVARIANT{\builtinId{covariant}}
|
|
\def\DEFERRED{\builtinId{deferred}}
|
|
\def\DYNAMIC{\builtinId{dynamic}}
|
|
\def\EXPORT{\builtinId{export}}
|
|
\def\EXTERNAL{\builtinId{external}}
|
|
\def\FACTORY{\builtinId{factory}}
|
|
\def\FUNCTION{\builtinId{Function}}
|
|
\def\GET{\builtinId{get}}
|
|
\def\IMPLEMENTS{\builtinId{implements}}
|
|
\def\IMPORT{\builtinId{import}}
|
|
\def\INTERFACE{\builtinId{interface}}
|
|
\def\LIBRARY{\builtinId{library}}
|
|
\def\MIXIN{\builtinId{mixin}}
|
|
\def\OPERATOR{\builtinId{operator}}
|
|
\def\PART{\builtinId{part}}
|
|
\def\SET{\builtinId{set}}
|
|
\def\STATIC{\builtinId{static}}
|
|
\def\TYPEDEF{\builtinId{typedef}}
|
|
|
|
\def\ASSERT{\keyword{assert}}
|
|
\def\ASYNC{\keyword{async}}
|
|
\def\AWAIT{\keyword{await}}
|
|
\def\BREAK{\keyword{break}}
|
|
\def\CASE{\keyword{case}}
|
|
\def\CATCH{\keyword{catch}}
|
|
\def\CLASS{\keyword{class}}
|
|
\def\CONST{\keyword{const}}
|
|
\def\CONTINUE{\keyword{continue}}
|
|
\def\DEFAULT{\keyword{default}}
|
|
\def\DO{\keyword{do}}
|
|
\def\ELSE{\keyword{else}}
|
|
\def\ENUM{\keyword{enum}}
|
|
\def\EXTENDS{\keyword{extends}}
|
|
\def\FALSE{\keyword{false}}
|
|
\def\FINAL{\keyword{final}}
|
|
\def\FINALLY{\keyword{finally}}
|
|
\def\FOR{\keyword{for}}
|
|
\def\HIDE{\keyword{hide}}
|
|
\def\IF{\keyword{if}}
|
|
\def\IN{\keyword{in}}
|
|
\def\IS{\keyword{is}}
|
|
\def\NEW{\keyword{new}}
|
|
\def\NULL{\keyword{null}}
|
|
\def\OF{\keyword{of}}
|
|
\def\ON{\keyword{on}}
|
|
\def\RETHROW{\keyword{rethrow}}
|
|
\def\RETURN{\keyword{return}}
|
|
\def\SHOW{\keyword{show}}
|
|
\def\SUPER{\keyword{super}}
|
|
\def\SWITCH{\keyword{switch}}
|
|
\def\SYNC{\keyword{sync}}
|
|
\def\THIS{\keyword{this}}
|
|
\def\THROW{\keyword{throw}}
|
|
\def\TRUE{\keyword{true}}
|
|
\def\TRY{\keyword{try}}
|
|
\def\VAR{\keyword{var}}
|
|
\def\VOID{\keyword{void}}
|
|
\def\WHILE{\keyword{while}}
|
|
\def\WITH{\keyword{with}}
|
|
\def\YIELD{\keyword{yield}}
|
|
|
|
% Used for inline code snippets.
|
|
\def\code#1{\texttt{#1}}
|
|
|
|
% `call` has no special lexical status, so we just use \code{}.
|
|
\def\CALL{\code{call}}
|
|
|
|
% Define commands for `<<`, `>>`, `>>>` that avoid introducing guillemets.
|
|
\def\ltlt{<\mbox <}
|
|
\def\gtgt{>\mbox >}
|
|
\def\gtgtgt{>\mbox >\mbox >}
|
|
|
|
% Used as line break in the right hand side of a grammar
|
|
% alternative, that is, when starting a "continuation line".
|
|
\newcommand{\gnewline}{\leavevmode\\}
|
|
|
|
% Metavariables for argument lists.
|
|
\newcommand{\argumentList}[1]{\metavar{{#1}s}}
|
|
\newcommand{\parameterList}[1]{\metavar{{#1}s}}
|
|
|
|
% Colors used for for different kinds of text.
|
|
\definecolor{normativeColor}{rgb}{0,0,0}
|
|
\definecolor{commentaryColor}{rgb}{0.6,0.6,0.6}
|
|
\definecolor{rationaleColor}{rgb}{0.6,0.6,0.6}
|
|
|
|
% Environments for different kinds of text.
|
|
\newenvironment{Q}[1]{{\bf #1}}{}
|
|
\newenvironment{rationale}[1]{{\color{rationaleColor}\it{#1}}}{}
|
|
\newenvironment{commentary}[1]{{\color{commentaryColor}\sf{#1}}}{}
|
|
|
|
% Auxiliary functions.
|
|
\newcommand{\flatten}[1]{\ensuremath{\mbox{\it flatten}({#1})}}
|
|
\newcommand{\overrides}[1]{\ensuremath{\mbox{\it overrides}({#1})}}
|
|
\newcommand{\inherited}[1]{\ensuremath{\mbox{\it inherited}({#1})}}
|
|
|
|
% Used as a mini-section marker, indicating visibly that a range of
|
|
% text (usually just a couple of paragraphs) are concerned with one
|
|
% specific topic in a list of similar topics (like many forms of
|
|
% expressions of a similar nature).
|
|
\newcommand{\Case}[1]{\textbf{Case }$\langle\hspace{0.1em}${#1}$\hspace{0.1em}\rangle$\textbf{.}}
|
|
|
|
\newenvironment{dartCode}[1][!ht] {
|
|
\def\@programcr{\@addfield\strut}%
|
|
\let\\=\@programcr%
|
|
\relax\@vobeyspaces\obeylines%
|
|
\ttfamily\color{commentaryColor}%
|
|
\vspace{1em}
|
|
}{\normalcolor\vspace{1em}}
|
|
|
|
\newenvironment{normativeDartCode}[1][!ht] {
|
|
\def\@programcr{\@addfield\strut}%
|
|
\let\\=\@programcr%
|
|
\relax\@vobeyspaces\obeylines%
|
|
\ttfamily\color{normativeColor}%
|
|
\vspace{1em}
|
|
}{\normalcolor\vspace{1em}}
|
|
|
|
% Used for comments in a code context.
|
|
\def\comment#1{\textsf{#1}}
|
|
|
|
% A commonly used name for an identifier
|
|
\newcommand{\id}{\metavar{id}}
|
|
|
|
% Used for defining occurrence of phrase, with customized index entry.
|
|
\newcommand{\IndexCustom}[2]{%
|
|
\leavevmode\marginpar{\ensuremath{\diamond}}\emph{#1}\index{#2}}
|
|
|
|
% Used for a defining occurrence of a phrase, adding it to the index.
|
|
\newcommand{\Index}[1]{\IndexCustom{#1}{#1}}
|
|
|
|
% Same appearance, but not adding an entry to the index.
|
|
\newcommand{\NoIndex}[1]{
|
|
\leavevmode\marginpar{\ensuremath{\diamond}}\emph{#1}}
|
|
|
|
% Used to specify comma separated lists of similar symbols.
|
|
\newcommand{\List}[3]{\ensuremath{{#1}_{#2},\,\ldots,\ {#1}_{#3}}}
|
|
|
|
% Used to specify comma separated lists of pairs of similar symbols,
|
|
% as needed, e.g., for declarations of formal parameters.
|
|
% Parameters: Name of first part of pair, name of second part,
|
|
% index at start, index at end.
|
|
\newcommand{\PairList}[4]{\ensuremath{%
|
|
{#1}_{#3}\ {#2}_{#3},\,\ldots,\ {#1}_{#4}\ {#2}_{#4}}}
|
|
|
|
% Used to specify comma separated lists of triples of similar symbols,
|
|
% as needed, e.g., for declarations of formal parameters with defaults.
|
|
% Parameters: Name of first part of triple, name of second part,
|
|
% name of third part, index at start, index at end.
|
|
\newcommand{\TripleList}[5]{\ensuremath{%
|
|
{#1}_{#4}\ {#2}_{#4}\ {#3}_{#4},\,\ldots,\ {#1}_{#5}\ {#2}_{#5}\ {#3}_{#5}}}
|
|
|
|
% Used to abbreviate \EXTENDS{} in function types.
|
|
\newcommand{\FunctionTypeExtends}{\ensuremath{\triangleleft}}
|
|
|
|
% Used to specify comma separated lists of pairs of symbols
|
|
% separated by \EXTENDS{}, as needed for type parameter declarations.
|
|
% Parameters: Type parameter name, bound name, number of type parameters.
|
|
\newcommand{\TypeParameters}[3]{\ensuremath{%
|
|
{#1}_1\,\EXTENDS\,{#2}_1,\,\ldots,\ %
|
|
{#1}_{#3}\,\EXTENDS\,{#2}_{#3}}}
|
|
|
|
% For consistency, we may as well use this whenever possible.
|
|
\newcommand{\TypeParametersStd}{\TypeParameters{X}{B}{s}}
|
|
|
|
% Used to specify comma separated lists of pairs of symbols
|
|
% separated by \EXTENDS{}, as needed for type parameter declarations.
|
|
% Parameters: Type parameter name, bound name, number of type parameters.
|
|
\newcommand{\FTTypeParameters}[3]{\ensuremath{%
|
|
{#1}_1\FunctionTypeExtends{#2}_1,\,\ldots,\ %
|
|
{#1}_{#3}\FunctionTypeExtends{#2}_{#3}}}
|
|
|
|
% Used to specify function types: Same syntax as in source.
|
|
% Arguments: Return type, formal parameter declarations.
|
|
\newcommand{\FunctionTypeSimple}[2]{\code{\ensuremath{#1}\ \FUNCTION({#2})}}
|
|
|
|
% Used to specify function types: Same syntax as in source.
|
|
% Arguments: Return type, spacer, type parameter name, bound name,
|
|
% number of type parameters, formal parameter declarations.
|
|
\newcommand{\FunctionType}[6]{\leavevmode\par\noindent\code{%
|
|
\ensuremath{#1}{#2}\FUNCTION<\FTTypeParameters{#3}{#4}{#5}>({#6})}}
|
|
|
|
% Used to specify function types with positional optionals:
|
|
% Arguments: Return type, spacer, type parameter name, bound name,
|
|
% number of type parameters, parameter type, number of required parameters,
|
|
% number of optional parameters.
|
|
\newcommand{\FunctionTypePositional}[8]{%
|
|
\FunctionType{#1}{#2}{#3}{#4}{#5}{\List{#6}{1}{#7},\ %
|
|
[\List{#6}{{#7}+1}{{#7}+{#8}}]}}
|
|
|
|
% Used to specify function types with named parameters:
|
|
% Arguments: Return type, spacer, type parameter name, bound name,
|
|
% number of type parameters, parameter type, number of required parameters,
|
|
% name of optional parameters, number of optional parameters.
|
|
\newcommand{\FunctionTypeNamed}[9]{%
|
|
\FunctionType{#1}{#2}{#3}{#4}{#5}{\List{#6}{1}{#7},\ %
|
|
\{\PairList{#6}{#8}{{#7}+1}{{#7}+{#9}}\}}}
|
|
|
|
% Used to specify function types with no optional parameters:
|
|
% Arguments: Return type, spacer, type parameter name, bound name,
|
|
% number of type parameters, parameter type,
|
|
% number of parameters (all required).
|
|
\newcommand{\FunctionTypeAllRequired}[7]{%
|
|
\FunctionType{#1}{#2}{#3}{#4}{#5}{\List{#6}{1}{#7}}}
|
|
|
|
\newcommand{\FunctionTypePositionalStd}[1]{%
|
|
\FunctionTypePositional{#1}{ }{X}{B}{s}{T}{n}{k}}
|
|
|
|
\newcommand{\FunctionTypeNamedStd}[1]{%
|
|
\FunctionTypeNamed{#1}{ }{X}{B}{s}{T}{n}{x}{k}}
|
|
|
|
\newcommand{\FunctionTypeAllRequiredStd}[1]{%
|
|
\FunctionTypeAllRequired{#1}{ }{X}{B}{s}{T}{n}}
|
|
|
|
\newcommand{\FunctionTypePositionalStdCr}[1]{%
|
|
\FunctionTypePositional{#1}{\\}{X}{B}{s}{T}{n}{k}}
|
|
|
|
\newcommand{\FunctionTypeNamedStdCr}[1]{%
|
|
\FunctionTypeNamed{#1}{\\}{X}{B}{s}{T}{n}{x}{k}}
|
|
|
|
\newcommand{\FunctionTypeAllRequiredStdCr}[1]{%
|
|
\FunctionTypeAllRequired{#1}{\\}{X}{B}{s}{T}{n}}
|
|
|
|
\newcommand{\MoreSignatureSpecificSymbol}{\ensuremath{\preceq}}
|
|
\newcommand{\NotMoreSignatureSpecificSymbol}{\ensuremath{\not\preceq}}
|
|
\newcommand{\LessSignatureSpecificSymbol}{\ensuremath{\succeq}}
|
|
|
|
\newcommand{\MoreSignatureSpecific}[2]{%
|
|
\ensuremath{{#1}\MoreSignatureSpecificSymbol{#2}}}
|
|
\newcommand{\NotMoreSignatureSpecific}[2]{%
|
|
\ensuremath{{#1}\NotMoreSignatureSpecificSymbol{#2}}}
|
|
|
|
% ----------------------------------------------------------------------
|
|
% Support for hash valued Location Markers
|
|
|
|
% very small font, to enable 40 char hash values in the margin
|
|
\makeatletter
|
|
\ifcase \@ptsize \relax% 10pt
|
|
\newcommand{\miniscule}{\@setfontsize\miniscule{2}{3}}% \tiny: 5/6
|
|
\or% 11pt
|
|
\newcommand{\miniscule}{\@setfontsize\miniscule{3}{4}}% \tiny: 6/7
|
|
\or% 12pt
|
|
\newcommand{\miniscule}{\@setfontsize\miniscule{3}{4}}% \tiny: 6/7
|
|
\fi
|
|
\makeatother
|
|
|
|
% white: location markers should not create visual noise
|
|
\definecolor{LMdim}{gray}{1.0}
|
|
|
|
% insert location marker showing hash value of following paragraph
|
|
\newcommand{\LMHash}[1]{\leavevmode\marginpar{\quad%
|
|
\raisebox{0.5ex}{\miniscule{\color{LMdim}#1}}\vspace{-2\baselineskip}}%
|
|
\color{normativeColor}}
|
|
|
|
% support convenient renewcommand
|
|
\let\OriginalLMHash\LMHash
|
|
|
|
% define a label, and show the associated logical location marker
|
|
\newcommand{\LMLabel}[1]{%
|
|
\vspace{-\baselineskip}\leavevmode\OriginalLMHash{\raisebox{10ex}{#1}}%
|
|
\label{#1}}
|
|
% ----------------------------------------------------------------------
|