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\documentclass{article}
\usepackage{open-axiom}
\author{Gabriel Dos~Reis}
\begin{document}
\begin{abstract}
\end{abstract}
\tableofcontents
\eject
\section{Compiler Intermediate Form}
<<domain IRFORM InternalRepresentationForm>>=
)abbrev domain IRFORM InternalRepresentationForm
++ Author: Gabriel Dos Reis
++ Date Created: March 12, 2010
++ Date Last Modified: March 12, 2010
++ Description:
++ This domain provides representations for the intermediate
++ form data structure used by the Spad elaborator.
InternalRepresentationForm(): Public == Private where
Public == Join(CoercibleTo OutputForm, HomotopicTo Syntax)
Private == add
coerce(x: %): Syntax == x : Syntax
coerce(x: Syntax): % == x : %
coerce(x: %): OutputForm ==
(x : Syntax)::OutputForm
@
<<domain ITFORM InternalTypeForm>>=
)abbrev domain ITFORM InternalTypeForm
++ Author: Gabriel Dos Reis
++ Date Created: March 12, 2010
++ Date Last Modified: March 12, 2010
++ Description:
++ This domain provides representations for internal type form.
InternalTypeForm() == InternalRepresentationForm
@
\section{Elaboration domain}
<<domain ELABOR Elaboration>>=
)abbrev domain ELABOR Elaboration
Elaboration(): Public == Private where
Public == CoercibleTo OutputForm with
elaboration: (InternalRepresentationForm, InternalTypeForm, Environment) -> %
++ \spad{elaboration(ir,ty,env)} construct an elaboration object for
++ for the internal representation form \spad{ir}, with type \spad{ty},
++ and environment \spad{env}.
irForm: % -> InternalRepresentationForm
++ \spad{irForm(x)} returns the internal representation form of
++ the elaboration \spad{x}.
typeForm: % -> InternalTypeForm
++ \spad{typeForm(x)} returns the type form of the elaboration \spad{x}.
environment: % -> Environment
++ \spad{environment(x)} returns the environment of the
++ elaboration \spad{x}.
Private == add
Rep == Record(ir: InternalRepresentationForm,
type: InternalTypeForm, env: Environment)
irForm x == rep(x).ir
typeForm x == rep(x).type
environment x == rep(x).env
coerce(x: %): OutputForm ==
bracket([irForm(x)::OutputForm, typeForm(x)::OutputForm,
environment(x)::OutputForm])$OutputForm
@
\section{A Package for the Spad Compiler}
<<package COMPILER CompilerPackage>>=
)abbrev package COMPILER CompilerPackage
++ Author: Gabriel Dos Reis
++ Date Created: March 12, 2010
++ Date Last Modified: March 12, 2010
++ Description:
++ This package implements a Spad compiler.
CompilerPackage(): Public == Private where
Public == Type with
macroExpand: (Syntax, Environment) -> Syntax
++ \spad{macroExpand(s,e)} traverses the syntax object \spad{s}
++ replacing all (niladic) macro invokations with the
++ corresponding substitution.
elaborate: Syntax -> Elaboration
++ \spad{elaborate(s)} returns the elaboration of the syntax
++ object \spad{s} in the empty environement.
Private == add
macroExpand(s,e) ==
-- FIXME: this is a short-term stopgap.
macroExpand(s,e)$Foreign(Builtin)
@
\section{License}
<<license>>=
--Copyright (C) 2007-2010, Gabriel Dos Reis.
--All rights reserved.
--
--Redistribution and use in source and binary forms, with or without
--modification, are permitted provided that the following conditions are
--met:
--
-- - Redistributions of source code must retain the above copyright
-- notice, this list of conditions and the following disclaimer.
--
-- - Redistributions in binary form must reproduce the above copyright
-- notice, this list of conditions and the following disclaimer in
-- the documentation and/or other materials provided with the
-- distribution.
--
-- - Neither the name of The Numerical Algorithms Group Ltd. nor the
-- names of its contributors may be used to endorse or promote products
-- derived from this software without specific prior written permission.
--
--THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
--IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
--TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
--PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
--OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
--EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
--PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
--PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
--LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
--NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
--SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
@
<<*>>=
<<license>>
<<domain IRFORM InternalRepresentationForm>>
<<package COMPILER CompilerPackage>>
@
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