* Fixed bug in record constructor when proto is unspecified.
This commit is contained in:
Abdulaziz Ghuloum
parent
988c13e123
commit
b79c21132b
14
Makefile
14
Makefile
|
|
@ -16,9 +16,9 @@
|
|||
srcdir = .
|
||||
top_srcdir = .
|
||||
|
||||
pkgdatadir = $(datadir)/ikarus
|
||||
pkglibdir = $(libdir)/ikarus
|
||||
pkgincludedir = $(includedir)/ikarus
|
||||
pkgdatadir = $(datadir)/ikarus-scheme
|
||||
pkglibdir = $(libdir)/ikarus-scheme
|
||||
pkgincludedir = $(includedir)/ikarus-scheme
|
||||
top_builddir = .
|
||||
am__cd = CDPATH="$${ZSH_VERSION+.}$(PATH_SEPARATOR)" && cd
|
||||
INSTALL = /usr/bin/install -c
|
||||
|
|
@ -105,11 +105,11 @@ LIBS = -lgmp
|
|||
LTLIBOBJS = lstat$U.lo
|
||||
MAKEINFO = ${SHELL} /Users/ikarus/Work/ikarus-scheme/missing --run makeinfo
|
||||
OBJEXT = o
|
||||
PACKAGE = ikarus
|
||||
PACKAGE = ikarus-scheme
|
||||
PACKAGE_BUGREPORT = aghuloum@cs.indiana.edu
|
||||
PACKAGE_NAME = ikarus
|
||||
PACKAGE_STRING = ikarus prerelease-0
|
||||
PACKAGE_TARNAME = ikarus
|
||||
PACKAGE_NAME = ikarus-scheme
|
||||
PACKAGE_STRING = ikarus-scheme prerelease-0
|
||||
PACKAGE_TARNAME = ikarus-scheme
|
||||
PACKAGE_VERSION = prerelease-0
|
||||
PATH_SEPARATOR = :
|
||||
POW_LIB =
|
||||
|
|
|
|||
11
README
11
README
|
|
@ -1,11 +0,0 @@
|
|||
|
||||
Ikarus Scheme Source Directory
|
||||
|
||||
Simplified Contents:
|
||||
bin: Contains the C files making the ikarus executable. The C
|
||||
files implement the GC, initial FASL loader, transport
|
||||
guardians, weak pairs, the symbol table, etc.
|
||||
lib: Contains the Scheme source files for the compiler and the
|
||||
rest of the development environment.
|
||||
lab: Contains sources that are in progress and were not integrated
|
||||
into the main code.
|
||||
8
config.h
8
config.h
|
|
@ -125,19 +125,19 @@
|
|||
/* #undef LSTAT_FOLLOWS_SLASHED_SYMLINK */
|
||||
|
||||
/* Name of package */
|
||||
#define PACKAGE "ikarus"
|
||||
#define PACKAGE "ikarus-scheme"
|
||||
|
||||
/* Define to the address where bug reports for this package should be sent. */
|
||||
#define PACKAGE_BUGREPORT "aghuloum@cs.indiana.edu"
|
||||
|
||||
/* Define to the full name of this package. */
|
||||
#define PACKAGE_NAME "ikarus"
|
||||
#define PACKAGE_NAME "ikarus-scheme"
|
||||
|
||||
/* Define to the full name and version of this package. */
|
||||
#define PACKAGE_STRING "ikarus prerelease-0"
|
||||
#define PACKAGE_STRING "ikarus-scheme prerelease-0"
|
||||
|
||||
/* Define to the one symbol short name of this package. */
|
||||
#define PACKAGE_TARNAME "ikarus"
|
||||
#define PACKAGE_TARNAME "ikarus-scheme"
|
||||
|
||||
/* Define to the version of this package. */
|
||||
#define PACKAGE_VERSION "prerelease-0"
|
||||
|
|
|
|||
|
|
@ -1,6 +1,6 @@
|
|||
#! /bin/sh
|
||||
# Guess values for system-dependent variables and create Makefiles.
|
||||
# Generated by GNU Autoconf 2.59 for ikarus prerelease-0.
|
||||
# Generated by GNU Autoconf 2.59 for ikarus-scheme prerelease-0.
|
||||
#
|
||||
# Report bugs to <aghuloum@cs.indiana.edu>.
|
||||
#
|
||||
|
|
@ -267,10 +267,10 @@ SHELL=${CONFIG_SHELL-/bin/sh}
|
|||
: ${ac_max_here_lines=38}
|
||||
|
||||
# Identity of this package.
|
||||
PACKAGE_NAME='ikarus'
|
||||
PACKAGE_TARNAME='ikarus'
|
||||
PACKAGE_NAME='ikarus-scheme'
|
||||
PACKAGE_TARNAME='ikarus-scheme'
|
||||
PACKAGE_VERSION='prerelease-0'
|
||||
PACKAGE_STRING='ikarus prerelease-0'
|
||||
PACKAGE_STRING='ikarus-scheme prerelease-0'
|
||||
PACKAGE_BUGREPORT='aghuloum@cs.indiana.edu'
|
||||
|
||||
ac_unique_file="src/"
|
||||
|
|
@ -788,7 +788,7 @@ if test "$ac_init_help" = "long"; then
|
|||
# Omit some internal or obsolete options to make the list less imposing.
|
||||
# This message is too long to be a string in the A/UX 3.1 sh.
|
||||
cat <<_ACEOF
|
||||
\`configure' configures ikarus prerelease-0 to adapt to many kinds of systems.
|
||||
\`configure' configures ikarus-scheme prerelease-0 to adapt to many kinds of systems.
|
||||
|
||||
Usage: $0 [OPTION]... [VAR=VALUE]...
|
||||
|
||||
|
|
@ -855,7 +855,7 @@ fi
|
|||
|
||||
if test -n "$ac_init_help"; then
|
||||
case $ac_init_help in
|
||||
short | recursive ) echo "Configuration of ikarus prerelease-0:";;
|
||||
short | recursive ) echo "Configuration of ikarus-scheme prerelease-0:";;
|
||||
esac
|
||||
cat <<\_ACEOF
|
||||
|
||||
|
|
@ -975,7 +975,7 @@ fi
|
|||
test -n "$ac_init_help" && exit 0
|
||||
if $ac_init_version; then
|
||||
cat <<\_ACEOF
|
||||
ikarus configure prerelease-0
|
||||
ikarus-scheme configure prerelease-0
|
||||
generated by GNU Autoconf 2.59
|
||||
|
||||
Copyright (C) 2003 Free Software Foundation, Inc.
|
||||
|
|
@ -989,7 +989,7 @@ cat >&5 <<_ACEOF
|
|||
This file contains any messages produced by compilers while
|
||||
running configure, to aid debugging if configure makes a mistake.
|
||||
|
||||
It was created by ikarus $as_me prerelease-0, which was
|
||||
It was created by ikarus-scheme $as_me prerelease-0, which was
|
||||
generated by GNU Autoconf 2.59. Invocation command line was
|
||||
|
||||
$ $0 $@
|
||||
|
|
@ -1713,7 +1713,7 @@ fi
|
|||
|
||||
|
||||
# Define the identity of the package.
|
||||
PACKAGE=ikarus
|
||||
PACKAGE=ikarus-scheme
|
||||
VERSION=0.0.1
|
||||
|
||||
|
||||
|
|
@ -7831,7 +7831,7 @@ _ASBOX
|
|||
} >&5
|
||||
cat >&5 <<_CSEOF
|
||||
|
||||
This file was extended by ikarus $as_me prerelease-0, which was
|
||||
This file was extended by ikarus-scheme $as_me prerelease-0, which was
|
||||
generated by GNU Autoconf 2.59. Invocation command line was
|
||||
|
||||
CONFIG_FILES = $CONFIG_FILES
|
||||
|
|
@ -7894,7 +7894,7 @@ _ACEOF
|
|||
|
||||
cat >>$CONFIG_STATUS <<_ACEOF
|
||||
ac_cs_version="\\
|
||||
ikarus config.status prerelease-0
|
||||
ikarus-scheme config.status prerelease-0
|
||||
configured by $0, generated by GNU Autoconf 2.59,
|
||||
with options \\"`echo "$ac_configure_args" | sed 's/[\\""\`\$]/\\\\&/g'`\\"
|
||||
|
||||
|
|
|
|||
|
|
@ -2,9 +2,9 @@
|
|||
# Process this file with autoconf to produce a configure script.
|
||||
|
||||
AC_PREREQ(2.59)
|
||||
AC_INIT(ikarus, prerelease-0, aghuloum@cs.indiana.edu)
|
||||
AC_INIT(ikarus-scheme, prerelease-0, aghuloum@cs.indiana.edu)
|
||||
AC_CANONICAL_SYSTEM
|
||||
AM_INIT_AUTOMAKE(ikarus, 0.0.1)
|
||||
AM_INIT_AUTOMAKE(ikarus-scheme, 0.0.1)
|
||||
AC_CONFIG_SRCDIR([src/])
|
||||
|
||||
|
||||
|
|
|
|||
|
|
@ -106,9 +106,17 @@
|
|||
{
|
||||
\fontsize{66}{66}
|
||||
\fontspec{Hoefler Text Italic}
|
||||
% \fontspec{Palatino}
|
||||
% \rnrs{6} Libraries
|
||||
% {
|
||||
% \fontsize{36}{36}
|
||||
% \fontspec{Palatino}
|
||||
% and syntax-case system
|
||||
% }
|
||||
\begin{center}
|
||||
Ikarus Scheme User's Guide
|
||||
\end{center} }
|
||||
\end{center}
|
||||
}
|
||||
\noindent
|
||||
\rule{\textwidth}{6pt}
|
||||
{\fontsize{18}{18}
|
||||
|
|
@ -181,11 +189,14 @@ section entitled ``GNU Free Documentation License''.
|
|||
\section{Introduction}
|
||||
|
||||
Ikarus Scheme is an implementation of the Scheme programming
|
||||
language\cite{steele:scheme}. The prerelease version of Ikarus
|
||||
language\cite{steele:scheme}. The preliminary release of Ikarus
|
||||
implements the majority of the features found in the current
|
||||
standard, the Revised$^6$ report on the algorithmic language
|
||||
Scheme\cite{r6rs}. Subsequent revisions will proceed towards
|
||||
completing the set of \rnrs{6} features.
|
||||
standard, the Revised$^\mathrm{6}$ report on the algorithmic language
|
||||
Scheme\cite{r6rs} including full \rnrs{6} library and script syntax,
|
||||
syntax-case, unicode strings, bytevectors, user-defined record
|
||||
types, exception handling, conditions, and enumerations. Subsequent
|
||||
releases will proceed towards brining Ikarus to full \rnrs{6}
|
||||
conformance.
|
||||
|
||||
The main purpose behind releasing Ikarus early is to give Scheme
|
||||
programmers the opportunity to experiment with the various new
|
||||
|
|
@ -244,6 +255,10 @@ Celeron, Pentium M, Core, and Core2 processors from Intel. The
|
|||
system does not run on Intel Pentium III or earlier
|
||||
processors.
|
||||
|
||||
The Ikarus compiler generates SSE2 instructions to handle Scheme's
|
||||
IEEE floating point representation (\emph{flonums}) for inexact
|
||||
numbers.
|
||||
|
||||
\subsection{Operating Systems}
|
||||
|
||||
Ikarus is tested under the following operating systems:
|
||||
|
|
@ -289,8 +304,8 @@ then all you need to know is that Ikarus uses the standard
|
|||
installation method found in most other Unix software. Simply run
|
||||
the following commands from the shell:
|
||||
\begin{verbatim}
|
||||
$ tar -zxf ikarus-pre-0-nnn.tar.gz
|
||||
$ cd ikarus-pre-0-nnn
|
||||
$ tar -zxf ikarus-scheme-n.n.n.tar.gz
|
||||
$ cd ikarus-scheme-n.n.n
|
||||
$ ./configure [--prefix=path] [CFLAGS=-I/dir] [LDFLAGS=-L/dir]
|
||||
$ make
|
||||
$ make install
|
||||
|
|
@ -307,7 +322,7 @@ mentioned above.
|
|||
|
||||
\item Download the Ikarus source distribution. The source is
|
||||
distributed as a \texttt{gzip}-compressed \texttt{tar} file
|
||||
(\texttt{ikarus-pre-0-nnn.tar.gz} where \texttt{nnn} is a 3-digit
|
||||
(\texttt{ikarus-scheme-n.n.n.tar.gz} where \texttt{n.n.n} is a 3-digit
|
||||
number indicating the current revision). The latest revision can be
|
||||
downloaded from the following URL:\\
|
||||
\url{http://www.cs.indiana.edu/~aghuloum/ikarus/}
|
||||
|
|
@ -315,15 +330,16 @@ downloaded from the following URL:\\
|
|||
\item Unpack the source distribution package. From your shell
|
||||
command, type:
|
||||
\begin{verbatim}
|
||||
$ tar -zxf ikarus-pre-0-nnn.tar.gz
|
||||
$ tar -zxf ikarus-scheme-n.n.n.tar.gz
|
||||
$
|
||||
\end{verbatim}
|
||||
This creates the base directory \texttt{ikarus-pre-0-nnn}.
|
||||
This creates the base directory \texttt{ikarus-scheme-n.n.n}.
|
||||
|
||||
\item Configure the build system by running the \texttt{configure}
|
||||
script located in the base directory. To do this, type the
|
||||
following commands:
|
||||
\begin{verbatim}
|
||||
$ cd ikarus-pre-0-nnn
|
||||
$ cd ikarus-scheme-n.n.n
|
||||
$ ./configure
|
||||
checking build system type... i386-apple-darwin8.10.1
|
||||
checking host system type... i386-apple-darwin8.10.1
|
||||
|
|
@ -346,6 +362,7 @@ follows:
|
|||
|
||||
\begin{verbatim}
|
||||
$ ./configure --prefix=/path/to/installation/location
|
||||
$
|
||||
\end{verbatim}
|
||||
|
||||
The \texttt{configure} script will fail if it cannot locate the
|
||||
|
|
@ -357,11 +374,13 @@ two paths in the \texttt{CFLAGS} and \texttt{LDFLAGS} arguments:
|
|||
|
||||
\begin{verbatim}
|
||||
$ ./configure CFLAGS=-I/path/to/include LDFLAGS=-L/path/to/lib
|
||||
$
|
||||
\end{verbatim}
|
||||
|
||||
\item Build the system by running:
|
||||
\begin{verbatim}
|
||||
$ make
|
||||
$
|
||||
\end{verbatim}
|
||||
This performs two
|
||||
tasks. First, it builds the \texttt{ikarus} executable from the C
|
||||
|
|
@ -374,6 +393,7 @@ file \texttt{ikarus.boot} from the Scheme sources located in the
|
|||
\item Install Ikarus by typing:
|
||||
\begin{verbatim}
|
||||
$ make install
|
||||
$
|
||||
\end{verbatim}
|
||||
If you are installing Ikarus in a system-wide location, you might
|
||||
need to have administrator privileges (use the \texttt{sudo} or
|
||||
|
|
@ -392,7 +412,7 @@ your system. You may need to update the \texttt{PATH} variable in
|
|||
your environment to contain the directory in which the
|
||||
\texttt{ikarus} executable was installed.
|
||||
|
||||
Do not delete the \texttt{ikarus-pre-0-nnn} directory from which you
|
||||
Do not delete the \texttt{ikarus-scheme-n.n.n} directory from which you
|
||||
configured, built, and installed Ikarus. It will be needed if you
|
||||
decide at a later time to uninstall Ikarus.
|
||||
|
||||
|
|
@ -405,6 +425,7 @@ To uninstall Ikarus, use the following steps:
|
|||
\begin{verbatim}
|
||||
$ cd path/to/ikarus-pre-0-nnn
|
||||
$ make uninstall
|
||||
$
|
||||
\end{verbatim}
|
||||
|
||||
\newpage
|
||||
|
|
@ -579,6 +600,7 @@ procedure bound to it.
|
|||
(define greeting
|
||||
(lambda ()
|
||||
(display "Hello World!\n")))
|
||||
|
||||
(greeting)
|
||||
\end{CodeInline}
|
||||
|
||||
|
|
@ -590,9 +612,11 @@ the script displays \texttt{Hello World} 3 times.
|
|||
|
||||
\begin{CodeInline}
|
||||
(import (rnrs))
|
||||
|
||||
(define greeting
|
||||
(lambda ()
|
||||
(display "Hello World!\n")))
|
||||
|
||||
(define-syntax do-times
|
||||
(syntax-rules ()
|
||||
[(_ n exprs ...)
|
||||
|
|
@ -600,6 +624,7 @@ the script displays \texttt{Hello World} 3 times.
|
|||
(unless (zero? i)
|
||||
exprs ...
|
||||
(f (- i 1))))]))
|
||||
|
||||
(do-times 3 (greeting))
|
||||
\end{CodeInline}
|
||||
|
||||
|
|
@ -646,6 +671,7 @@ The \texttt{(iteration)} library may be written as follows:
|
|||
(library (iteration)
|
||||
(export do-times)
|
||||
(import (rnrs))
|
||||
|
||||
(define-syntax do-times
|
||||
(syntax-rules ()
|
||||
[(_ n exprs ...)
|
||||
|
|
@ -662,9 +688,11 @@ makes all of \texttt{(iteration)}'s exported identifiers, e.g.
|
|||
|
||||
\begin{CodeInline}
|
||||
(import (rnrs) (iteration))
|
||||
|
||||
(define greeting
|
||||
(lambda ()
|
||||
(display "Hello World!\n")))
|
||||
|
||||
(do-times 3 (greeting))
|
||||
\end{CodeInline}
|
||||
|
||||
|
|
@ -684,63 +712,138 @@ makes all of \texttt{(iteration)}'s exported identifiers, e.g.
|
|||
% (do-times-proc (- n 1) proc)))))
|
||||
% \end{CodeInline}
|
||||
|
||||
\section{Defining new record types}
|
||||
|
||||
\rnrs{6} provides ways for users to define new types, called record
|
||||
types. A record is a fixed-size data structure with a unique type
|
||||
(called a record type). A record may have any finite number of
|
||||
fields that hold arbitrary values. This section briefly describes
|
||||
what we expect to be the most commonly used features of the record
|
||||
system. Full details are in the \rnrs{6} Standard Libraries
|
||||
document\cite{r6rs:lib}.
|
||||
|
||||
To define a new record type, use the \texttt{define-record-type}
|
||||
form. For example, suppose we want to define a new record type for
|
||||
describing points, where a point is a data structure that has two
|
||||
fields to hold the point's $x$ and $y$ coordinates. The following
|
||||
definition achieves just that:
|
||||
|
||||
\begin{CodeInline}
|
||||
(define-record-type point
|
||||
(fields x y))
|
||||
\end{CodeInline}
|
||||
|
||||
The above use of \texttt{define-record-type} defines the following
|
||||
procedures automatically for you:
|
||||
\begin{itemize}
|
||||
\item The constructor \texttt{make-point} that takes two arguments,
|
||||
\texttt{x} and \texttt{y} and returns a new record whose type is
|
||||
point.
|
||||
\item The predicate \texttt{point?} that takes an arbitrary value
|
||||
and returns \texttt{\#t} if that value is a point, \texttt{\#f}
|
||||
otherwise.
|
||||
\item The accessors \texttt{point-x} and \texttt{point-y} that,
|
||||
given a record of type point, return the value stored in the
|
||||
\texttt{x} and \texttt{y} fields.
|
||||
\end{itemize}
|
||||
|
||||
Both the \texttt{x} and \texttt{y} fields of the \texttt{point}
|
||||
record type are \emph{immutable}, meaning that once a record is
|
||||
created with specific \texttt{x} and \texttt{y} values, they cannot
|
||||
be changed later. If you want the fields to be \emph{mutable}, then
|
||||
you need to specify that explicitly as in the following example.
|
||||
\newpage
|
||||
|
||||
\begin{CodeInline}
|
||||
(define-record-type point
|
||||
(fields (mutable x) (mutable y)))
|
||||
\end{CodeInline}
|
||||
|
||||
This definition gives us, in addition to the constructor, predicate,
|
||||
and accessors, two additional procedures:
|
||||
\begin{itemize}
|
||||
\item The mutators \texttt{set-point-x!} and \texttt{set-point-y!} that,
|
||||
given a record of type point, and a new value, sets the value stored in the
|
||||
\texttt{x} field or \texttt{y} field to the new value.
|
||||
\end{itemize}
|
||||
|
||||
|
||||
\BoxedText{Note:}{Records in Ikarus have a printable representation
|
||||
in order to enable debugging programs that use records. Records are
|
||||
printed in the \texttt{\#[type-name field-values ...]} notation.
|
||||
For example, \texttt{(write (make-point 1 2))} produces
|
||||
\texttt{\#[point 1 2]}.}
|
||||
|
||||
\section{Extending existing record types}
|
||||
|
||||
A record type may be extended by defining new variants of a record
|
||||
with additional fields. In our running example, suppose we want
|
||||
to define a \texttt{colored-point} record type that, in addition to
|
||||
being a \texttt{point}, it has an additional field: a \emph{color}.
|
||||
A simple way of achieving that is by using the following definition:
|
||||
\begin{CodeInline}
|
||||
(define-record-type color-point
|
||||
(parent point)
|
||||
(fields color))
|
||||
\end{CodeInline}
|
||||
|
||||
|
||||
|
||||
\chapter{\rnrs{6} Standard Libraries}
|
||||
\newpage
|
||||
|
||||
|
||||
\section{\texttt{(rnrs)}}
|
||||
\newpage
|
||||
|
||||
\section{\texttt{(rnrs base)}}
|
||||
\newpage
|
||||
|
||||
\section{\texttt{(rnrs arithmetic bitwise)}}
|
||||
\newpage
|
||||
|
||||
\section{\texttt{(rnrs arithmetic fixnums)}}
|
||||
\newpage
|
||||
|
||||
\section{\texttt{(rnrs arithmetic flonums)}}
|
||||
\newpage
|
||||
|
||||
\section{\texttt{(rnrs bytevectors)}}
|
||||
\newpage
|
||||
|
||||
\section{\texttt{(rnrs conditions)}}
|
||||
\newpage
|
||||
|
||||
\section{\texttt{(rnrs control)}}
|
||||
\newpage
|
||||
|
||||
\section{\texttt{(rnrs enums)}}
|
||||
\newpage
|
||||
|
||||
\section{\texttt{(rnrs exceptions)}}
|
||||
\newpage
|
||||
|
||||
\section{\texttt{(rnrs files)}}
|
||||
\newpage
|
||||
|
||||
\section{\texttt{(rnrs hashtables)}}
|
||||
\cite{ghuloum07hashtables}
|
||||
\newpage
|
||||
|
||||
|
||||
\section{\texttt{(rnrs io ports)}}
|
||||
\newpage
|
||||
|
||||
\section{\texttt{(rnrs io simple)}}
|
||||
\newpage
|
||||
|
||||
\section{\texttt{(rnrs lists)}}
|
||||
\newpage
|
||||
|
||||
\section{\texttt{(rnrs mutable-pairs)}}
|
||||
\newpage
|
||||
|
||||
\section{\texttt{(rnrs mutable-strings)}}
|
||||
\newpage
|
||||
|
||||
\section{\texttt{(rnrs programs)}}
|
||||
\newpage
|
||||
|
||||
\section{\texttt{(rnrs r5rs)}}
|
||||
\newpage
|
||||
|
||||
\section{\texttt{(rnrs records inspection)}}
|
||||
\newpage
|
||||
|
||||
\section{\texttt{(rnrs records procedural)}}
|
||||
\newpage
|
||||
|
||||
\section{\texttt{(rnrs records syntactic)}}
|
||||
\newpage
|
||||
|
||||
\section{\texttt{(rnrs sorting)}}
|
||||
\newpage
|
||||
|
||||
\section{\texttt{(rnrs syntax-case)}}
|
||||
\newpage
|
||||
|
||||
\section{\texttt{(rnrs unicode)}}
|
||||
\newpage
|
||||
|
||||
|
||||
|
||||
|
||||
|
|
@ -751,34 +854,34 @@ makes all of \texttt{(iteration)}'s exported identifiers, e.g.
|
|||
|
||||
* explain each of the exports.
|
||||
|
||||
\newpage
|
||||
|
||||
\section{\label{lib:ikarus}\texttt{(ikarus)}}
|
||||
\newpage
|
||||
|
||||
\section{\texttt{(ikarus files)}}
|
||||
\newpage
|
||||
|
||||
\section{\texttt{(ikarus parameters)}}
|
||||
\newpage
|
||||
|
||||
\section{\texttt{(ikarus posix)}}
|
||||
\newpage
|
||||
|
||||
\section{\texttt{(ikarus printing)}}
|
||||
\newpage
|
||||
|
||||
\section{\texttt{(ikarus symbols)}}
|
||||
\newpage
|
||||
|
||||
\section{\texttt{(ikarus timers)}}
|
||||
\newpage
|
||||
|
||||
\section{\texttt{(ikarus tracing)}}
|
||||
\newpage
|
||||
|
||||
\section{\texttt{(ikarus unicode)}}
|
||||
\newpage
|
||||
|
||||
\section{\texttt{(ikarus guardians)}}
|
||||
\cite{dybvig93guardians}
|
||||
\newpage
|
||||
|
||||
\section{\texttt{(ikarus weak-pairs)}}
|
||||
\newpage
|
||||
|
||||
\section{\texttt{(ikarus modules)}}
|
||||
\newpage
|
||||
|
||||
\section{\texttt{(ikarus library-manager)}}
|
||||
\newpage
|
||||
|
||||
|
||||
|
||||
% \chapter{Using \rnrs{6} Libraries Effectively}
|
||||
|
|
|
|||
Binary file not shown.
|
|
@ -243,6 +243,17 @@
|
|||
|
||||
(define (record-constructor rcd)
|
||||
(define who 'record-constructor)
|
||||
|
||||
(define (split all-fields n)
|
||||
(let f ([ls all-fields] [n n])
|
||||
(if (zero? n)
|
||||
(values '() ls)
|
||||
(if (pair? ls)
|
||||
(let-values ([(m p) (f (cdr ls) (- n 1))])
|
||||
(values (cons (car ls) m) p))
|
||||
(error 'record-condtructor "insufficient arguments"
|
||||
all-fields)))))
|
||||
|
||||
(define (constructor main-rtd size prcd proto)
|
||||
(if (not prcd) ;;; base
|
||||
(lambda (f*)
|
||||
|
|
@ -250,7 +261,7 @@
|
|||
(let ([n (rtd-size main-rtd)])
|
||||
(unless (= (length flds) size)
|
||||
(error 'record-constructor
|
||||
"expecting args, got" n flds))
|
||||
"main expecting args, got" n flds))
|
||||
(let ([r ($make-struct main-rtd n)])
|
||||
(let f ([i 0] [r r] [flds flds] [f* f*])
|
||||
(cond
|
||||
|
|
@ -265,21 +276,24 @@
|
|||
(let ([pprcd (rcd-prcd prcd)]
|
||||
[sz (rtd-size (rcd-rtd prcd))])
|
||||
(let ([p (constructor main-rtd sz pprcd (rcd-proc prcd))]
|
||||
[n (- size sz)])
|
||||
(lambda (f*)
|
||||
[n (- size sz)]
|
||||
[proto
|
||||
(if proto
|
||||
proto
|
||||
(lambda (new)
|
||||
(lambda all-fields
|
||||
(let-values ([(parent-fields myfields)
|
||||
(split all-fields
|
||||
(- (length all-fields) (- size sz)))])
|
||||
(apply (apply new parent-fields) myfields)))))])
|
||||
(lambda (f*)
|
||||
(proto
|
||||
(lambda fmls
|
||||
(lambda flds
|
||||
(unless (= (length flds) n)
|
||||
(error 'record-constructor
|
||||
"expecting args, got" n flds))
|
||||
(apply (p (cons flds f*)) fmls))))
|
||||
(lambda flds
|
||||
(unless (= (length flds) n)
|
||||
(error 'record-constructor
|
||||
"expecting args, got" n flds))
|
||||
((p (cons flds f*))))))))))
|
||||
(apply (p (cons flds f*)) fmls)))))))))
|
||||
(unless (rcd? rcd)
|
||||
(error who "not a record constructor descriptor" rcd))
|
||||
(let ([rtd (rcd-rtd rcd)]
|
||||
|
|
|
|||
Loading…
Reference in New Issue