Replace the F ing Rust implmentation with the boilerplate project in Go

This commit is contained in:
Sameer Rahmani 2020-11-10 21:37:30 +00:00
parent cff76ac5a5
commit 67cf700ff6
29 changed files with 562 additions and 2463 deletions

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The source code for a work means the preferred form of the work for
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END OF TERMS AND CONDITIONS
If distribution of executable or object code is made by offering
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access to copy the source code from the same place counts as
distribution of the source code, even though third parties are not
compelled to copy the source along with the object code.
APPENDIX: How to apply the Apache License to your work.
4. You may not copy, modify, sublicense, or distribute the Program
except as expressly provided under this License. Any attempt
otherwise to copy, modify, sublicense or distribute the Program is
void, and will automatically terminate your rights under this License.
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this License will not have their licenses terminated so long as such
parties remain in full compliance.
To apply the Apache License to your work, attach the following
boilerplate notice, with the fields enclosed by brackets "[]"
replaced with your own identifying information. (Don't include
the brackets!) The text should be enclosed in the appropriate
comment syntax for the file format. We also recommend that a
file or class name and description of purpose be included on the
same "printed page" as the copyright notice for easier
identification within third-party archives.
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signed it. However, nothing else grants you permission to modify or
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prohibited by law if you do not accept this License. Therefore, by
modifying or distributing the Program (or any work based on the
Program), you indicate your acceptance of this License to do so, and
all its terms and conditions for copying, distributing or modifying
the Program or works based on it.
Copyright [yyyy] [name of copyright owner]
6. Each time you redistribute the Program (or any work based on the
Program), the recipient automatically receives a license from the
original licensor to copy, distribute or modify the Program subject to
these terms and conditions. You may not impose any further
restrictions on the recipients' exercise of the rights granted herein.
You are not responsible for enforcing compliance by third parties to
this License.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
7. If, as a consequence of a court judgment or allegation of patent
infringement or for any other reason (not limited to patent issues),
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license would not permit royalty-free redistribution of the Program by
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the only way you could satisfy both it and this License would be to
refrain entirely from distribution of the Program.
http://www.apache.org/licenses/LICENSE-2.0
If any portion of this section is held invalid or unenforceable under
any particular circumstance, the balance of the section is intended to
apply and the section as a whole is intended to apply in other
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It is not the purpose of this section to induce you to infringe any
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implemented by public license practices. Many people have made
generous contributions to the wide range of software distributed
through that system in reliance on consistent application of that
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This section is intended to make thoroughly clear what is believed to
be a consequence of the rest of this License.
8. If the distribution and/or use of the Program is restricted in
certain countries either by patents or by copyrighted interfaces, the
original copyright holder who places the Program under this License
may add an explicit geographical distribution limitation excluding
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9. The Free Software Foundation may publish revised and/or new versions
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How to Apply These Terms to Your New Programs
If you develop a new program, and you want it to be of the greatest
possible use to the public, the best way to achieve this is to make it
free software which everyone can redistribute and change under these terms.
To do so, attach the following notices to the program. It is safest
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convey the exclusion of warranty; and each file should have at least
the "copyright" line and a pointer to where the full notice is found.
<one line to give the program's name and a brief idea of what it does.>
Copyright (C) <year> <name of author>
This program is free software; you can redistribute it and/or modify
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Also add information on how to contact you by electronic and paper mail.
If the program is interactive, make it output a short notice like this
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Gnomovision version 69, Copyright (C) year name of author
Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
This is free software, and you are welcome to redistribute it
under certain conditions; type `show c' for details.
The hypothetical commands `show w' and `show c' should show the appropriate
parts of the General Public License. Of course, the commands you use may
be called something other than `show w' and `show c'; they could even be
mouse-clicks or menu items--whatever suits your program.
You should also get your employer (if you work as a programmer) or your
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necessary. Here is a sample; alter the names:
Yoyodyne, Inc., hereby disclaims all copyright interest in the program
`Gnomovision' (which makes passes at compilers) written by James Hacker.
<signature of Ty Coon>, 1 April 1989
Ty Coon, President of Vice
This General Public License does not permit incorporating your program into
proprietary programs. If your program is a subroutine library, you may
consider it more useful to permit linking proprietary applications with the
library. If this is what you want to do, use the GNU Lesser General
Public License instead of this License.
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.

59
bootstrap/cmd/root.go Normal file
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@ -0,0 +1,59 @@
/*
Serene --- Yet an other Lisp
Copyright (c) 2020 Sameer Rahmani <lxsameer@gnu.org>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 2 of the License.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package cmd
import (
"fmt"
"os"
"github.com/spf13/cobra"
)
var cfgFile string
// rootCmd represents the base command when called without any subcommands
var rootCmd = &cobra.Command{
Use: "Serene",
Short: "The bootstrap version",
Long: `Serene's bootstrap interpreter V0.1.0
Serene's bootstrap interpreter is used to
bootstrap the Serene's compiler.'
It comes with ABSOLUTELY NO WARRANTY;
This is free software, and you are welcome
to redistribute it under certain conditions;
for details take a look at the LICENSE file.
`,
Run: func(cmd *cobra.Command, args []string) {
fmt.Println("BOOOOOOOOOOOOO")
},
}
// Execute adds all child commands to the root command and sets flags appropriately.
// This is called by main.main(). It only needs to happen once to the rootCmd.
func Execute() {
if err := rootCmd.Execute(); err != nil {
fmt.Println(err)
os.Exit(1)
}
}
func init() {
cobra.OnInitialize()
}

9
bootstrap/go.mod Normal file
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@ -0,0 +1,9 @@
module serene-lang.org/bootstrap
go 1.15
require (
github.com/mitchellh/go-homedir v1.1.0
github.com/spf13/cobra v1.1.1
github.com/spf13/viper v1.7.1
)

301
bootstrap/go.sum Normal file
View File

@ -0,0 +1,301 @@
cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
cloud.google.com/go v0.34.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
cloud.google.com/go v0.38.0/go.mod h1:990N+gfupTy94rShfmMCWGDn0LpTmnzTp2qbd1dvSRU=
cloud.google.com/go v0.44.1/go.mod h1:iSa0KzasP4Uvy3f1mN/7PiObzGgflwredwwASm/v6AU=
cloud.google.com/go v0.44.2/go.mod h1:60680Gw3Yr4ikxnPRS/oxxkBccT6SA1yMk63TGekxKY=
cloud.google.com/go v0.45.1/go.mod h1:RpBamKRgapWJb87xiFSdk4g1CME7QZg3uwTez+TSTjc=
cloud.google.com/go v0.46.3/go.mod h1:a6bKKbmY7er1mI7TEI4lsAkts/mkhTSZK8w33B4RAg0=
cloud.google.com/go/bigquery v1.0.1/go.mod h1:i/xbL2UlR5RvWAURpBYZTtm/cXjCha9lbfbpx4poX+o=
cloud.google.com/go/datastore v1.0.0/go.mod h1:LXYbyblFSglQ5pkeyhO+Qmw7ukd3C+pD7TKLgZqpHYE=
cloud.google.com/go/firestore v1.1.0/go.mod h1:ulACoGHTpvq5r8rxGJ4ddJZBZqakUQqClKRT5SZwBmk=
cloud.google.com/go/pubsub v1.0.1/go.mod h1:R0Gpsv3s54REJCy4fxDixWD93lHJMoZTyQ2kNxGRt3I=
cloud.google.com/go/storage v1.0.0/go.mod h1:IhtSnM/ZTZV8YYJWCY8RULGVqBDmpoyjwiyrjsg+URw=
dmitri.shuralyov.com/gpu/mtl v0.0.0-20190408044501-666a987793e9/go.mod h1:H6x//7gZCb22OMCxBHrMx7a5I7Hp++hsVxbQ4BYO7hU=
github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
github.com/BurntSushi/xgb v0.0.0-20160522181843-27f122750802/go.mod h1:IVnqGOEym/WlBOVXweHU+Q+/VP0lqqI8lqeDx9IjBqo=
github.com/OneOfOne/xxhash v1.2.2/go.mod h1:HSdplMjZKSmBqAxg5vPj2TmRDmfkzw+cTzAElWljhcU=
github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
github.com/alecthomas/units v0.0.0-20151022065526-2efee857e7cf/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0=
github.com/armon/circbuf v0.0.0-20150827004946-bbbad097214e/go.mod h1:3U/XgcO3hCbHZ8TKRvWD2dDTCfh9M9ya+I9JpbB7O8o=
github.com/armon/go-metrics v0.0.0-20180917152333-f0300d1749da/go.mod h1:Q73ZrmVTwzkszR9V5SSuryQ31EELlFMUz1kKyl939pY=
github.com/armon/go-radix v0.0.0-20180808171621-7fddfc383310/go.mod h1:ufUuZ+zHj4x4TnLV4JWEpy2hxWSpsRywHrMgIH9cCH8=
github.com/beorn7/perks v0.0.0-20180321164747-3a771d992973/go.mod h1:Dwedo/Wpr24TaqPxmxbtue+5NUziq4I4S80YR8gNf3Q=
github.com/beorn7/perks v1.0.0/go.mod h1:KWe93zE9D1o94FZ5RNwFwVgaQK1VOXiVxmqh+CedLV8=
github.com/bgentry/speakeasy v0.1.0/go.mod h1:+zsyZBPWlz7T6j88CTgSN5bM796AkVf0kBD4zp0CCIs=
github.com/bketelsen/crypt v0.0.3-0.20200106085610-5cbc8cc4026c/go.mod h1:MKsuJmJgSg28kpZDP6UIiPt0e0Oz0kqKNGyRaWEPv84=
github.com/cespare/xxhash v1.1.0/go.mod h1:XrSqR1VqqWfGrhpAt58auRo0WTKS1nRRg3ghfAqPWnc=
github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw=
github.com/coreos/bbolt v1.3.2/go.mod h1:iRUV2dpdMOn7Bo10OQBFzIJO9kkE559Wcmn+qkEiiKk=
github.com/coreos/etcd v3.3.13+incompatible/go.mod h1:uF7uidLiAD3TWHmW31ZFd/JWoc32PjwdhPthX9715RE=
github.com/coreos/go-semver v0.3.0/go.mod h1:nnelYz7RCh+5ahJtPPxZlU+153eP4D4r3EedlOD2RNk=
github.com/coreos/go-systemd v0.0.0-20190321100706-95778dfbb74e/go.mod h1:F5haX7vjVVG0kc13fIWeqUViNPyEJxv/OmvnBo0Yme4=
github.com/coreos/pkg v0.0.0-20180928190104-399ea9e2e55f/go.mod h1:E3G3o1h8I7cfcXa63jLwjI0eiQQMgzzUDFVpN/nH/eA=
github.com/cpuguy83/go-md2man/v2 v2.0.0/go.mod h1:maD7wRr/U5Z6m/iR4s+kqSMx2CaBsrgA7czyZG/E6dU=
github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
github.com/dgrijalva/jwt-go v3.2.0+incompatible/go.mod h1:E3ru+11k8xSBh+hMPgOLZmtrrCbhqsmaPHjLKYnJCaQ=
github.com/dgryski/go-sip13 v0.0.0-20181026042036-e10d5fee7954/go.mod h1:vAd38F8PWV+bWy6jNmig1y/TA+kYO4g3RSRF0IAv0no=
github.com/fatih/color v1.7.0/go.mod h1:Zm6kSWBoL9eyXnKyktHP6abPY2pDugNf5KwzbycvMj4=
github.com/fsnotify/fsnotify v1.4.7 h1:IXs+QLmnXW2CcXuY+8Mzv/fWEsPGWxqefPtCP5CnV9I=
github.com/fsnotify/fsnotify v1.4.7/go.mod h1:jwhsz4b93w/PPRr/qN1Yymfu8t87LnFCMoQvtojpjFo=
github.com/ghodss/yaml v1.0.0/go.mod h1:4dBDuWmgqj2HViK6kFavaiC9ZROes6MMH2rRYeMEF04=
github.com/go-gl/glfw v0.0.0-20190409004039-e6da0acd62b1/go.mod h1:vR7hzQXu2zJy9AVAgeJqvqgH9Q5CA+iKCZ2gyEVpxRU=
github.com/go-kit/kit v0.8.0/go.mod h1:xBxKIO96dXMWWy0MnWVtmwkA9/13aqxPnvrjFYMA2as=
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github.com/spf13/cobra v1.1.1 h1:KfztREH0tPxJJ+geloSLaAkaPkr4ki2Er5quFV1TDo4=
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github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
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gopkg.in/yaml.v2 v2.0.0-20170812160011-eb3733d160e7/go.mod h1:JAlM8MvJe8wmxCU4Bli9HhUf9+ttbYbLASfIpnQbh74=
gopkg.in/yaml.v2 v2.2.1/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
gopkg.in/yaml.v2 v2.2.4/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
gopkg.in/yaml.v2 v2.2.8 h1:obN1ZagJSUGI0Ek/LBmuj4SNLPfIny3KsKFopxRdj10=
gopkg.in/yaml.v2 v2.2.8/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
honnef.co/go/tools v0.0.0-20190106161140-3f1c8253044a/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
honnef.co/go/tools v0.0.0-20190418001031-e561f6794a2a/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
honnef.co/go/tools v0.0.1-2019.2.3/go.mod h1:a3bituU0lyd329TUQxRnasdCoJDkEUEAqEt0JzvZhAg=
rsc.io/binaryregexp v0.2.0/go.mod h1:qTv7/COck+e2FymRvadv62gMdZztPaShugOCi3I+8D8=

24
bootstrap/main.go Normal file
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@ -0,0 +1,24 @@
/*
Serene --- Yet an other Lisp
Copyright (c) 2020 Sameer Rahmani <lxsameer@gnu.org>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 2 of the License.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package main
import "serene-lang.org/bootstrap/cmd"
func main() {
cmd.Execute()
}

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@ -1,140 +0,0 @@
/* Serene --- Yet an other Lisp
*
* Copyright (c) 2020 Sameer Rahmani <lxsameer@gnu.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
use crate::errors::Error;
use crate::runtime;
use crate::scope::Scope;
use crate::types::collections;
use crate::types::{BuiltinFunction, Number, Symbol};
use std::fmt;
pub type AST = Vec<Expr>;
pub type PossibleExpr = Result<Expr, Error>;
#[derive(Debug, Eq, PartialEq, Clone)]
pub struct Location {
position: i64,
file_path: String,
}
impl fmt::Display for Location {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
write!(f, "'{}:{}'", &self.file_path, &self.position)
}
}
pub trait Node: fmt::Display {
fn location(&self) -> Location {
Location {
position: 0,
file_path: "NotImplemented".to_string(),
}
}
fn get_type_str(&self) -> &str {
"Some type"
}
}
pub trait Callable {
fn apply(&self, rt: &runtime::Runtime, scope: &Scope, args: collections::List) -> Expr;
}
#[derive(Debug, Eq, PartialEq, Clone)]
pub enum Expr {
Sym(Symbol),
Str(String),
//Fn(Function),
BuiltinFn(BuiltinFunction),
Num(Number),
Error(String),
Cons(collections::List),
Nil,
Comment,
NoMatch,
}
impl Expr {
pub fn make_list(elements: &[Expr]) -> Expr {
Expr::Cons(collections::List::new(elements))
}
pub fn list_to_cons(l: collections::List) -> Expr {
Expr::Cons(l)
}
pub fn make_empty_list() -> collections::List {
collections::List::new_empty()
}
pub fn make_symbol(v: String, target_ns: Option<String>) -> Expr {
Expr::Sym(Symbol::new(v, target_ns))
}
pub fn make_string(v: String) -> Expr {
Expr::Str(v)
}
pub fn make_number(n: Number) -> Expr {
Expr::Num(n)
}
pub fn get_node(&self) -> Option<&dyn Node> {
match self {
Self::Num(x) => Some(x),
Self::Sym(x) => Some(x),
Self::Cons(x) => Some(x),
Self::BuiltinFn(x) => Some(x),
//Self::Str(x) => x,
// Self:://Fn(Function),
//Self::Error(String),
_ => None,
}
}
}
impl fmt::Display for Expr {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
match self.get_node() {
Some(n) => n.fmt(f),
_ => match self {
Self::Comment => write!(f, "comment"),
Self::Error(_) => write!(f, "error"),
Self::Nil => write!(f, "nil"),
Self::NoMatch => write!(f, "noMatch"),
_ => write!(f, "Should Not happen"),
},
}
}
}
impl Node for Expr {
fn get_type_str(&self) -> &str {
match self.get_node() {
Some(x) => x.get_type_str(),
None => match self {
Self::Comment => "comment",
Self::Error(_) => "error",
Self::Nil => "nil",
Self::NoMatch => "noMatch",
_ => {
panic!("This shouldn't happen. Checkout `get_node` and `get_type_str` on Expr")
}
},
}
}
}

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@ -1,19 +0,0 @@
/* Serene --- Yet an other Lisp
*
* Copyright (c) 2020 Sameer Rahmani <lxsameer@gnu.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
pub mod def;
//pub use self::def::def;

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@ -1,20 +0,0 @@
/* Serene --- Yet an other Lisp
*
* Copyright (c) 2020 Sameer Rahmani <lxsameer@gnu.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
use crate::ast::Expr;
// pub fn def<'ctx, 'val: 'ctx>(compiler: &'ctx mut Compiler<'val>, args: List) -> ExprResult<'val> {
// }

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@ -1,41 +0,0 @@
name: "Serene's bootstrap interpreter"
version: "0.1.0"
about: |
Serene's bootstrap interpreter is used to
bootstrap the Serene's compiler.'
It comes with ABSOLUTELY NO WARRANTY;
This is free software, and you are welcome
to redistribute it under certain conditions;
for details take a look at the LICENSE file.
author: "Sameer Rahmani <lxsameer@gnu.org>\n"
settings:
- SubcommandRequiredElseHelp
- ColorAlways
- ColoredHelp
subcommands:
- repl:
about: "Executes the local Serene's Repl"
args:
- debug-mode:
short: d
help: print debug information
- run:
about: Serene's bootstrap interpreter
args:
- debug-parser:
long: debug-parser
about: Prints out the AST only.
takes_value: false
- INPUT:
about: Sets the input file to use
required: true
index: 1
- verbose:
short: v
multiple: true
about: Sets the level of verbosity

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@ -1,64 +0,0 @@
/* Serene --- Yet an other Lisp
*
* Copyright (c) 2020 Sameer Rahmani <lxsameer@gnu.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
use crate::namespace::Namespace;
use crate::types::Node;
use std::collections::HashMap;
pub struct Compiler {
//pub fpm: &'a PassManager<FunctionValue<'ctx>>,
current_ns_name: Option<String>,
}
impl Compiler {
pub fn new() -> Compiler {
//let user_ns = Namespace::new(&context, default_ns_name);
//namespaces.insert(default_ns_name, &user_ns);
// let fpm = PassManager::create(&user_ns.module);
// fpm.add_instruction_combining_pass();
// fpm.add_reassociate_pass();
// fpm.add_gvn_pass();
// fpm.add_cfg_simplification_pass();
// fpm.add_basic_alias_analysis_pass();
// fpm.add_promote_memory_to_register_pass();
// fpm.add_instruction_combining_pass();
// fpm.add_reassociate_pass();
// fpm.initialize();
Compiler {
namespaces: HashMap::new(),
current_ns_name: None,
}
}
pub fn create_ns(&mut self, ns_name: String, source_file: Option<&str>) {
self.namespaces
.insert(ns_name.clone(), Namespace::new(ns_name, None));
}
pub fn set_current_ns(&mut self, ns_name: String) {
self.current_ns_name = Some(ns_name);
}
#[inline]
pub fn current_ns(&mut self) -> Option<&mut Namespace> {
match &self.current_ns_name {
Some(ns) => self.namespaces.get_mut(ns).map(|x| x),
_ => None,
}
}
}

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@ -1,125 +0,0 @@
/* Serene --- Yet an other Lisp
*
* Copyright (c) 2020 Sameer Rahmani <lxsameer@gnu.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
use crate::ast::{Callable, Expr, Node, PossibleExpr};
use crate::errors::err;
use crate::namespace;
use crate::reader::read_string;
use crate::runtime;
use crate::scope::Scope;
use crate::types::collections::Seq;
pub fn string_repr(rt: &runtime::Runtime, expr: &Expr) -> String {
match expr {
Expr::Sym(s) => format!(
"#'{}/{}",
namespace::get_name(runtime::current_ns(rt)),
&s.name
),
_ => format!("{}", expr),
}
}
pub fn eval_expr(rt: &runtime::Runtime, scope: &Scope, expr: Expr) -> PossibleExpr {
match &expr {
// ** Number evaluation
Expr::Num(_) => Ok(expr),
// ** Symbol evaluation
Expr::Sym(s) => {
if s.is_ns_qualified() {
return namespace::lookup_external(
runtime::current_ns(rt),
&s.target_ns.clone().unwrap(),
&s.name,
);
}
match scope.lookup(&s.name) {
Some(e) => Ok(e.expr.clone()),
_ => Err(err(format!(
"Undefined binding {} in ns '{}' at {}",
string_repr(rt, &expr),
namespace::get_name(runtime::current_ns(rt)),
s.location()
))),
}
}
// ** List evaluation
Expr::Cons(l) => {
if l.count() == 0 {
return Ok(Expr::Nil);
}
let first = l.first().unwrap();
let rest = l.rest();
match eval_expr(rt, scope, first) {
Ok(e) => match e {
//Expr::Fn(f) => f.apply(rt, scope, rest),
Expr::BuiltinFn(b) => Ok(b.apply(rt, scope, rest)),
_ => Err(err(format!(
"Can't cast '{}' to functions at {}",
e.get_type_str(),
l.location(),
))),
},
Err(e) => Err(e),
}
}
_ => Ok(expr),
}
}
pub fn eval(rt: &runtime::Runtime, scope: &Scope, exprs: Vec<Expr>) -> PossibleExpr {
if exprs.len() == 0 {
return Ok(Expr::NoMatch);
}
let mut ret: PossibleExpr = Ok(Expr::NoMatch);
for expr in exprs.iter() {
ret = eval_expr(rt, scope, expr.clone());
}
ret
}
pub fn read_eval_print(rt: &runtime::Runtime, input: &str) {
match read_string(input) {
Ok(exprs) => {
if runtime::is_debug(rt) {
println!("Read Result: \n{:?}\n", exprs);
}
let result_expr = eval(
rt,
namespace::get_root_scope(&runtime::current_ns(rt)),
exprs,
);
if runtime::is_debug(rt) {
println!("Eval Result: \n{:?}\n", result_expr);
}
match result_expr {
Ok(expr) => println!("{}", string_repr(rt, &expr)),
Err(e) => println!("{}", e),
}
}
Err(e) => println!("Error: {}", e),
}
}

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@ -1,42 +0,0 @@
/* Serene --- Yet an other Lisp
*
* Copyright (c) 2020 Sameer Rahmani <lxsameer@gnu.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
use std::fmt;
pub trait IError {
fn message(&self) -> &str;
}
#[derive(Debug)]
pub struct Error {
msg: String,
}
impl fmt::Display for Error {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
write!(f, "Error: {}", &self.msg)
}
}
impl IError for Error {
fn message(&self) -> &str {
&self.msg
}
}
pub fn err(msg: String) -> Error {
Error { msg }
}

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@ -1,84 +0,0 @@
/* Serene --- Yet an other Lisp
*
* Copyright (c) 2020 Sameer Rahmani <lxsameer@gnu.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#![deny(
missing_docs,
missing_debug_implementations,
missing_copy_implementations,
trivial_casts,
trivial_numeric_casts,
unsafe_code,
unstable_features,
unused_import_braces,
unused_qualifications
)]
use clap::{load_yaml, App, ArgMatches};
use std::io;
pub mod ast;
pub mod builtins;
pub mod core;
pub mod errors;
pub mod namespace;
pub mod reader;
pub mod repl;
pub mod runtime;
pub mod scope;
pub mod types;
fn repl(args: ArgMatches) {
let mut debug = false;
if args.is_present("debug-mode") {
debug = true;
}
let rt = runtime::create_runtime();
runtime::create_ns(&rt, "user".to_string(), None);
runtime::set_current_ns(&rt, "user".to_string());
runtime::set_debug_mode(&rt, debug);
repl::repl(&rt);
}
fn main() -> io::Result<()> {
let yaml = load_yaml!("cli.yml");
let app = App::from(yaml);
match app.get_matches().subcommand() {
Some(("repl", args)) => repl(args.clone()),
Some(("run", args)) => println!("repl, {:?}", args),
_ => {}
}
// if let Some(input) = args.value_of("INPUT") {
// let mut f = File::open(input)?;
// let mut buf = String::new();
// f.read_to_string(&mut buf)?;
// match reader::read_string(&buf) {
// Ok(v) => {
// println!("AST: {:#?}", v);
// }
// Err(e) => println!(">> error {:?}", e),
// }
// } else {
// println!("Input file is missing.")
// }
Ok(())
}

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@ -1,87 +0,0 @@
/* Serene --- Yet an other Lisp
*
* Copyright (c) 2020 Sameer Rahmani <lxsameer@gnu.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
use crate::ast::{Expr, PossibleExpr};
use crate::scope::Scope;
use std::sync::{Arc, RwLock};
#[derive(Debug, Clone)]
pub struct Namespace {
/// Root scope of the namespace
pub name: String,
pub source_file: Option<String>,
pub root_scope: Scope,
}
impl Namespace {
pub fn new(name: String, source_file: Option<String>) -> Namespace {
Namespace {
name,
source_file,
root_scope: Scope::new(None),
}
}
pub fn lookup_external(&self, target: &str, key: &str) -> PossibleExpr {
Ok(Expr::Nil)
}
pub fn define_global(&mut self, name: &str, expr: Expr, public: bool) {
self.root_scope.insert(&name, expr, public);
}
}
pub fn define_global(ns: &RwLock<Namespace>, name: &str, expr: Expr, public: bool) {
match ns.write() {
Ok(mut n) => n.define_global(name, expr, public),
Err(_) => panic!("Poisoned write lock while defining a global: '{:?}'", ns),
}
}
pub fn lookup_external(ns: &RwLock<Namespace>, target: &str, key: &str) -> PossibleExpr {
match ns.read() {
Ok(n) => n.lookup_external(target, key),
Err(_) => panic!("Poisoned write lock while defining a global: '{:?}'", ns),
}
}
pub fn get_name(ns: &RwLock<Namespace>) -> String {
match ns.read() {
Ok(n) => n.name.clone(),
Err(_) => panic!("Poisoned write lock while defining a global: '{:?}'", ns),
}
}
pub fn get_root_scope(ns: &RwLock<Namespace>) -> &Scope {
match ns.read() {
Ok(n) => &n.root_scope,
Err(_) => panic!(
"Poisoned write lock while getting the root scope: '{:?}'",
ns
),
}
}
#[test]
fn test_ns_define_global() {
let mut ns = Namespace::new("ns1".to_string(), None);
assert_eq!(ns.root_scope.lookup("blah").is_none(), true);
ns.define_global("something", Expr::Nil, true);
let result = ns.root_scope.lookup("something").unwrap();
assert_eq!(result.expr, Expr::Nil);
assert_eq!(result.public, true);
}

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@ -1,383 +0,0 @@
/* Serene --- Yet an other Lisp
*
* Copyright (c) 2020 Sameer Rahmani <lxsameer@gnu.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
use crate::ast::Expr;
use crate::types::Number;
use std::io::{BufReader, Read};
pub type ReadResult<'a> = Result<Expr, String>;
pub struct ExprReader {
location: i32,
read_stack: Vec<char>,
}
impl ExprReader {
fn new() -> ExprReader {
ExprReader {
location: 0,
read_stack: vec![],
}
}
/// Retun a single character by reading from the `reader`. ,
///
/// # Arguments:
///
/// * `reader`: The buffer to read from.
/// * `skip_whitespace`: Whether or not to skip whitespace chars. *Bear in mind that
/// if you care about the newline char you should not skip the whitespaces*.
fn get_char<T: Read>(
&mut self,
reader: &mut BufReader<T>,
skip_whitespace: bool,
) -> Option<char> {
loop {
match self.read_stack.pop() {
Some(c) if !c.is_whitespace() || !skip_whitespace => return Some(c),
Some(_) => continue,
None => (),
};
// Rust is weird, it doesn't provide a way to read from a buffer char by char.
let mut single_char_buff = [0];
let bytes_read = reader.read(&mut single_char_buff);
match bytes_read {
Ok(n) if n > 0 => self.location = self.location + 1,
Ok(_) => return None,
Err(_) => return None,
};
let ch = single_char_buff[0] as char;
match ch {
c if !c.is_whitespace() || !skip_whitespace => return Some(c),
_ => (),
};
}
}
fn unget_char(&mut self, c: char) {
self.read_stack.push(c);
}
// Look ahead. AFAIK Rust doesn't provide any unread functoinality like Java input streams which
// sucks.
fn peek_char<T: Read>(
&mut self,
reader: &mut BufReader<T>,
skip_whitespace: bool,
) -> Option<char> {
match self.get_char(reader, skip_whitespace) {
Some(c) => {
self.unget_char(c);
Some(c)
}
None => None,
}
}
fn read_quoted_expr<T: Read>(&mut self, reader: &mut BufReader<T>) -> ReadResult {
let rest = self.read_expr(reader)?;
let elements = vec![Expr::make_symbol("quote".to_string(), None), rest];
Ok(Expr::make_list(&elements))
}
fn read_unquoted_expr<T: Read>(&mut self, reader: &mut BufReader<T>) -> ReadResult {
match self.peek_char(reader, true) {
Some('@') => {
// Move forward in the buffer since we peeked it
let _ = self.get_char(reader, true);
let rest = self.read_expr(reader)?;
let elements = vec![
Expr::make_symbol("unquote-splicing".to_string(), None),
rest,
];
Ok(Expr::make_list(&elements))
}
_ => {
let rest = self.read_expr(reader)?;
let elements = vec![Expr::make_symbol("unquote".to_string(), None), rest];
Ok(Expr::make_list(&elements))
}
}
}
fn read_quasiquoted_expr<T: Read>(&mut self, reader: &mut BufReader<T>) -> ReadResult {
let rest = self.read_expr(reader)?;
let elements = vec![Expr::make_symbol("quasiquote".to_string(), None), rest];
Ok(Expr::make_list(&elements))
}
// TODO: We might want to replace Cons with an actual List struct
fn read_list<T: Read>(&mut self, reader: &mut BufReader<T>) -> ReadResult {
let mut result = Expr::make_empty_list();
match self.read_expr(reader) {
Ok(value) => result.push(value),
Err(e) => match self.get_char(reader, true) {
Some(')') => return Ok(Expr::list_to_cons(result)),
_ => return Err(e),
},
};
loop {
match self.get_char(reader, true) {
Some(')') => return Ok(Expr::list_to_cons(result)),
Some(e) => {
self.unget_char(e);
result.push(self.read_expr(reader)?)
}
None => return Err("Unexpected EOF while parsing a list.".to_string()),
};
}
}
fn is_valid_for_identifier(&self, c: char) -> bool {
match c {
'!'
| '$'
| '%'
| '&'
| '*'
| '+'
| '-'
| '.'
| '~'
| '/'
| ':'
| '<'
| '='
| '>'
| '?'
| '@'
| '^'
| '_'
| 'a'..='z'
| 'A'..='Z'
| '0'..='9' => true,
_ => false,
}
}
fn _read_symbol<T: Read>(&mut self, reader: &mut BufReader<T>) -> ReadResult {
let mut symbol = match self.peek_char(reader, false) {
Some(e) if self.is_valid_for_identifier(e) => {
// Read into string
let ch = self.get_char(reader, false).unwrap();
let mut s = String::new();
s.push(ch);
s
}
Some(e) => {
return Err(format!(
"Unexpected character: got '{}', expected a symbol at {}",
e, self.location
))
}
None => return Err("Unexpected EOF".to_string()),
};
loop {
match self.get_char(reader, false) {
Some(v) if self.is_valid_for_identifier(v) => symbol.push(v),
Some(v) => {
self.unget_char(v);
break;
}
None => break,
}
}
let tmp = &symbol;
let mut parts: Vec<&str> = tmp.split("/").collect();
parts.reverse();
match parts.len() {
1 => Ok(Expr::make_symbol(symbol, None)),
2 => Ok(Expr::make_symbol(
parts[0].to_string(),
parts.last().map(|x| x.to_string()),
)),
_ => Err(format!(
"Multiple NSs won't work: {} at {}",
&symbol, self.location
)),
}
}
fn read_escape_char<T: Read>(&mut self, reader: &mut BufReader<T>) -> Option<char> {
match self.get_char(reader, false) {
Some(e) => match e {
'\"' => Some('\"'),
'\'' => Some('\''),
'\\' => Some('\\'),
'n' => Some('\n'),
'r' => Some('\r'),
't' => Some('\t'),
_ => None,
},
None => None,
}
}
fn read_string<T: Read>(&mut self, reader: &mut BufReader<T>) -> ReadResult {
// Skip the " char
let _ = self.get_char(reader, false);
let mut string = "".to_string();
loop {
match self.get_char(reader, false) {
Some(e) => match e {
'\"' => break,
'\\' => match self.read_escape_char(reader) {
Some(v) => string.push(v),
None => return Err(format!("Unexpected char to escape, got {}", e)),
},
//'\n' => return Err("Unescaped newlines are not allowed in string literals".to_string()),
_ => string.push(e),
},
None => return Err("Unexpected EOF while scanning a string".to_string()),
}
}
Ok(Expr::make_string(string))
}
fn read_number<T: Read>(&mut self, reader: &mut BufReader<T>, neg: bool) -> ReadResult {
let mut is_double = false;
let mut string = (if neg { "-" } else { "" }).to_string();
loop {
match self.get_char(reader, false) {
Some(e) if e == '.' && is_double => {
return Err("A double with more that one '.' ???".to_string())
}
Some(e) if e == '.' => {
is_double = true;
string.push(e);
}
Some(e) if e.is_digit(10) => string.push(e),
Some(e) => {
self.unget_char(e);
break;
}
None => break,
}
}
// TODO: Move this to ast module and use the `new` function on
// Number struct
if is_double {
Ok(Expr::make_number(Number::Float(
string.parse::<f64>().unwrap(),
)))
} else {
Ok(Expr::make_number(Number::Integer(
string.parse::<i64>().unwrap(),
)))
}
}
fn read_symbol<T: Read>(&mut self, reader: &mut BufReader<T>) -> ReadResult {
match self.peek_char(reader, true) {
Some(c) => match c {
'\"' => self.read_string(reader),
c if c.is_digit(10) => self.read_number(reader, false),
// ':' => self.read_keyword(reader),
'-' => {
// Read the '-' char
let _ = self.get_char(reader, true);
match self.peek_char(reader, true) {
Some(ch) => match ch {
ch if ch.is_digit(10) => self.read_number(reader, true),
_ => {
self.unget_char(c);
self._read_symbol(reader)
}
},
None => {
self.unget_char(c);
self._read_symbol(reader)
}
}
}
_ => self._read_symbol(reader),
},
None => Err("Unexpected EOF while scanning atom".to_string()),
}
}
pub fn ignore_comments<T: Read>(&mut self, reader: &mut BufReader<T>) -> ReadResult {
match self.get_char(reader, false) {
Some(c) => match c {
'\n' => Ok(Expr::Comment),
_ => self.ignore_comments(reader),
},
None => Ok(Expr::Comment),
}
}
pub fn read_expr<T: Read>(&mut self, reader: &mut BufReader<T>) -> ReadResult {
match self.get_char(reader, true) {
Some(c) => {
match c {
'\'' => self.read_quoted_expr(reader),
'~' => self.read_unquoted_expr(reader),
'`' => self.read_quasiquoted_expr(reader),
'(' => self.read_list(reader),
';' => self.ignore_comments(reader),
//'[' => self.read_vector(reader),
//'{' => self.read_map(reader),
_ => {
self.unget_char(c);
self.read_symbol(reader)
}
}
}
None => Ok(Expr::NoMatch),
}
}
pub fn read_from_buffer<T: Read>(
&mut self,
reader: &mut BufReader<T>,
) -> Result<Vec<Expr>, String> {
let mut ast = vec![];
loop {
match self.read_expr(reader) {
Ok(Expr::NoMatch) => break,
Err(v) => return Err(v),
Ok(Expr::Comment) => continue,
Ok(v) => ast.push(v),
}
}
Ok(ast)
}
pub fn read(&mut self, string: &str) -> Result<Vec<Expr>, String> {
let reader = BufReader::new(string.as_bytes());
let mut buf_reader = BufReader::new(reader);
self.read_from_buffer(&mut buf_reader)
}
}
pub fn read_string(input: &str) -> Result<Vec<Expr>, String> {
let mut reader = ExprReader::new();
reader.read(input)
}

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@ -1,54 +0,0 @@
/* Serene --- Yet an other Lisp
*
* Copyright (c) 2020 Sameer Rahmani <lxsameer@gnu.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
use crate::core::read_eval_print;
use crate::namespace;
use crate::runtime;
use rustyline::error::ReadlineError;
use rustyline::Editor;
pub fn repl(rt: &runtime::Runtime) {
let mut rl = Editor::<()>::new();
let history = runtime::history_file_path();
if rl.load_history(&history).is_err() && runtime::is_debug(&rt) {
println!("No previous history.");
}
loop {
let prompt = format!("{}> ", namespace::get_name(runtime::current_ns(rt)));
let readline = rl.readline(&prompt);
match readline {
Ok(line) => {
rl.add_history_entry(line.as_str());
read_eval_print(&rt, &line);
}
Err(ReadlineError::Interrupted) => {
println!("CTRL-C");
break;
}
Err(ReadlineError::Eof) => {
println!("CTRL-D");
break;
}
Err(err) => {
println!("Error: {:?}", err);
break;
}
}
}
rl.save_history(&history).unwrap();
}

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@ -1,134 +0,0 @@
/* Serene --- Yet an other Lisp
*
* Copyright (c) 2020 Sameer Rahmani <lxsameer@gnu.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
use crate::ast::Expr;
use crate::namespace::Namespace;
use std::collections::HashMap;
use std::env;
use std::path::Path;
use std::sync::{Arc, RwLock};
const SERENE_HISTORY_FILE: &'static str = ".serene.hitory";
pub type Runtime = Arc<RwLock<RT>>;
pub struct RT {
/// This hashmap contains all the namespaces that has to be compiled and
/// maps two different keys to the same namespace. Since namespace names
/// can not contain `/` char, the keys of this map are the namespace
/// name and the path to the file containing the namespace. For example:
///
/// A let's say we have a namespace `abc.xyz`, this namespace will have
/// two entries in this hashmap. One would be the ns name itself which
/// is `abc.xyz` in this case and the otherone would be
/// `/path/to/abc/xyz.srn` file that contains the ns.
pub namespaces: HashMap<String, RwLock<Namespace>>,
pub current_ns_name: Option<String>,
pub debug: bool,
}
pub fn create_runtime() -> Runtime {
Arc::new(RwLock::new(RT {
namespaces: HashMap::new(),
current_ns_name: None,
debug: false,
}))
}
/// Create a new namespace with the given `ns_name` and add it to the current
/// runtime.
pub fn create_ns(rt: &Runtime, ns_name: String, source_file: Option<String>) {
let mut r = match rt.write() {
Ok(r) => r,
Err(_) => panic!("Poisoned runtime!"),
};
r.namespaces.insert(
ns_name.clone(),
RwLock::new(Namespace::new(ns_name, source_file)),
);
}
/// Set the current ns to the given `ns_name`. The `ns_name` has to be
/// part of the runtime already.
pub fn set_current_ns(rt: &Runtime, ns_name: String) {
let mut r = match rt.write() {
Ok(r) => r,
Err(_) => panic!("Poisoned runtime!"),
};
match r.namespaces.get(&ns_name) {
Some(_) => r.current_ns_name = Some(ns_name),
None => panic!("The given namespace '{}' doesn't exit", ns_name),
}
}
pub fn current_ns(rt: &Runtime) -> &RwLock<Namespace> {
match rt.read() {
Ok(mut r) => {
let ns_name = r.current_ns_name.clone().unwrap();
match r.namespaces.get(&ns_name) {
Some(x) => x,
_ => panic!("No namespace has been set to current."),
}
}
Err(_) => panic!("Poisoned runtime!"),
}
}
#[inline]
pub fn set_debug_mode(rt: &Runtime, v: bool) {
let mut r = match rt.write() {
Ok(r) => r,
Err(_) => panic!("Poisoned runtime!"),
};
r.debug = v;
}
#[inline]
pub fn is_debug(rt: &Runtime) -> bool {
match rt.read() {
Ok(r) => r.debug,
Err(_) => panic!("Poisoned runtime!"),
}
}
// TODO: Move this function to somewhere else
pub fn history_file_path() -> String {
match env::var("HOME") {
Ok(v) => {
let history = Path::new(&v).join(SERENE_HISTORY_FILE).clone();
history.to_str().unwrap().into()
}
Err(_) => SERENE_HISTORY_FILE.into(),
}
}
#[test]
fn test_runtime_ns_mutation() {
let rt = create_runtime();
create_ns(&rt, "user".to_string(), None);
set_current_ns(&rt, "user".to_string());
let ns = current_ns(&rt).read().unwrap();
assert_eq!(ns.root_scope.lookup("blah").is_none(), true);
let ns = current_ns(&rt).write().unwrap();
ns.define_global("something", Expr::Nil, true);
let result = ns.root_scope.lookup("something").unwrap();
assert_eq!(result.expr, Expr::Nil);
assert_eq!(result.public, true);
}

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@ -1,76 +0,0 @@
/* Serene --- Yet an other Lisp
*
* Copyright (c) 2020 Sameer Rahmani <lxsameer@gnu.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
use crate::ast::Expr;
use std::collections::HashMap;
pub type Scope = Arc<RwLock<UnSafeScope>>;
/// This struct describes the values in the scope.
#[derive(Debug, Clone)]
pub struct ScopeElement {
pub expr: Expr,
pub public: bool,
}
/// Scopes in **Serene** are simply represented by hashmaps. Each
/// Scope optionally has a parent scope that lookups fallback to
/// if the lookup key is missing from the current scope.
#[derive(Debug, Clone)]
pub struct UnSafeScope {
parent: Option<Scope>,
symbol_table: HashMap<String, ScopeElement>,
}
impl UnSafeScope {
pub fn new(_parent: Option<Scope>) -> Scope {
let p = match _parent {
Some(x) => Some(Box::new(x)),
None => None,
};
UnSafeScope {
parent: p,
symbol_table: HashMap::new(),
}
}
/// Lookup the given `key` in the scope and if it is not in the current
/// scope look it up in the `parent` scope.
pub fn lookup(&self, key: &str) -> Option<&ScopeElement> {
if self.symbol_table.contains_key(key) {
self.symbol_table.get(key)
} else {
match &self.parent {
Some(x) => x.lookup(key),
None => None,
}
}
}
pub fn insert(&mut self, key: &str, expr: Expr, public: bool) {
let v = ScopeElement { public, expr };
self.symbol_table.insert(key.to_string(), v);
}
}
#[test]
fn test_scope() {
let mut scope = Scope::new(None);
scope.insert("sym1", Expr::Nil, true);
let sym = scope.lookup("sym1").unwrap();
assert_eq!(sym.expr, Expr::Nil);
}

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@ -1,25 +0,0 @@
/* Serene --- Yet an other Lisp
*
* Copyright (c) 2020 Sameer Rahmani <lxsameer@gnu.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
pub mod builtin_function;
pub mod collections;
pub mod number;
pub mod symbol;
pub use self::builtin_function::BuiltinFunction;
pub use self::collections::{List, Seq};
pub use self::number::Number;
pub use self::symbol::Symbol;

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@ -1,67 +0,0 @@
/* Serene --- Yet an other Lisp
*
* Copyright (c) 2020 Sameer Rahmani <lxsameer@gnu.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
use crate::ast::{Callable, Expr, Node};
use crate::runtime;
use crate::scope::Scope;
use crate::types::collections::List;
use std::fmt;
pub type BuiltinHandler = fn(rt: &runtime::Runtime, scope: &Scope, args: List) -> Expr;
#[derive(Clone)]
pub struct BuiltinFunction {
pub name: String,
ns: String,
handler_function: BuiltinHandler,
}
impl PartialEq for BuiltinFunction {
fn eq(&self, other: &Self) -> bool {
(self.name == other.name) && (self.ns == other.ns)
}
}
impl Eq for BuiltinFunction {}
impl Node for BuiltinFunction {
fn get_type_str(&self) -> &str {
"Function"
}
}
impl Callable for BuiltinFunction {
fn apply(&self, rt: &runtime::Runtime, scope: &Scope, args: List) -> Expr {
let f = self.handler_function;
f(rt, scope, args)
}
}
impl fmt::Display for BuiltinFunction {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
write!(f, "{}/{}", &self.ns, &self.name)
}
}
impl fmt::Debug for BuiltinFunction {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
f.debug_struct("BuiltinFunction")
.field("name", &self.name)
.field("ns", &self.ns)
.finish()
}
}

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@ -1,21 +0,0 @@
/* Serene --- Yet an other Lisp
*
* Copyright (c) 2020 Sameer Rahmani <lxsameer@gnu.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
pub mod core;
pub mod list;
pub use self::core::Seq;
pub use self::list::List;

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@ -1,39 +0,0 @@
/* Serene --- Yet an other Lisp
*
* Copyright (c) 2020 Sameer Rahmani <lxsameer@gnu.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/// Seq trait describes a seqable collection. Please note that `first`
/// and `rest` return a copy of the data not the reference!
pub trait Seq<T> {
type Coll;
fn first(&self) -> Option<T>;
fn rest(&self) -> Self::Coll;
}
// pub fn first<'a, T, S: Seq<T>>(coll: impl Into<Option<&'a S>>) -> Option<&'a T>
// where
// S: 'a,
// {
// coll.into().and_then(first)
// }
// pub fn rest<'a, T, S: Seq<T>>(coll: impl Into<Option<&'a S>>) -> S {
// match coll.into() {
// Some(e) => e.rest(),
// None =>
// }
// }

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@ -1,84 +0,0 @@
/* Serene --- Yet an other Lisp
*
* Copyright (c) 2020 Sameer Rahmani <lxsameer@gnu.org>
*
* Exprhis program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License.
*
* Exprhis program is distributed in the hope that it will be useful,
* but WIExprHOUExpr ANY WARRANExprY; without even the implied warranty of
* MERCHANExprABILIExprY or FIExprNESS FOR A PARExprICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
//use crate::builtins::def;
use crate::ast::{Expr, Node};
use crate::types::collections::core::Seq;
use std::fmt;
#[derive(Debug, Eq, PartialEq, Clone)]
pub struct List {
elements: Vec<Expr>,
}
impl List {
pub fn new_empty() -> List {
List { elements: vec![] }
}
pub fn new(elems: &[Expr]) -> List {
List {
elements: elems.to_vec(),
}
}
pub fn push(&mut self, elem: Expr) {
self.elements.push(elem)
}
pub fn count(&self) -> usize {
self.elements.len()
}
}
impl Seq<Expr> for List {
type Coll = Self;
fn first(&self) -> Option<Expr> {
match self.elements.first() {
Some(e) => Some(e.clone()),
None => None,
}
}
fn rest(&self) -> List {
if self.count() > 0 {
List::new(&self.elements[1..])
} else {
List::new_empty()
}
}
}
impl Node for List {
fn get_type_str(&self) -> &str {
"List"
}
}
impl fmt::Display for List {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
let elems: Vec<String> = self
.elements
.clone()
.iter()
.map(|x| format!("{}", x))
.collect();
write!(f, "({})", &elems.join(" "))
}
}

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@ -1,37 +0,0 @@
/* Serene --- Yet an other Lisp
*
* Copyright (c) 2020 Sameer Rahmani <lxsameer@gnu.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
use crate::ast::Node;
use std::fmt;
#[derive(Debug, Clone)]
pub struct Function {
pub name: Option<String>,
}
//impl Eq for Function {}
impl Node for Function {
fn get_type_str(&self) -> &str {
"Function"
}
}
// impl fmt::Display for Function {
// fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
// write!(f, "{}", &self.name)
// }
// }

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@ -1,61 +0,0 @@
/* Serene --- Yet an other Lisp
*
* Copyright (c) 2020 Sameer Rahmani <lxsameer@gnu.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
use crate::ast::Node;
use std::fmt;
// Note: I kept the number implementation simple for now
// but we need to decide on our approach to numbers, are
// we going to only support the 64bit variants? or should
// try to be smart and support 32 and 64 and switch between
// them ?
// What about usize and isize ?
#[derive(Debug, Clone)]
pub enum Number {
Integer(i64),
Float(f64),
}
impl PartialEq for Number {
fn eq(&self, other: &Self) -> bool {
// TODO: Eval other
let comb = (&self, &other);
match comb {
(Number::Integer(x), Number::Integer(y)) => *x == *y,
(Number::Float(x), Number::Float(y)) => *x == *y,
(Number::Integer(x), Number::Float(y)) => *x as f64 == *y,
(Number::Float(x), Number::Integer(y)) => *x == *y as f64,
}
}
}
impl Eq for Number {}
impl Node for Number {
fn get_type_str(&self) -> &str {
"Number"
}
}
impl fmt::Display for Number {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
match self {
Self::Integer(n) => write!(f, "{}", n),
Self::Float(n) => write!(f, "{}", n),
}
}
}

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/* Serene --- Yet an other Lisp
*
* Copyright (c) 2020 Sameer Rahmani <lxsameer@gnu.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
use crate::ast::Node;
use std::fmt;
#[derive(Debug, Clone)]
pub struct Symbol {
pub name: String,
/// This field holds the ns specifier part of the symbol. For example
/// in case of `somens/somesym`, this field will hold `somens`.
pub target_ns: Option<String>,
}
impl Symbol {
pub fn new(name: String, target_ns: Option<String>) -> Symbol {
Symbol { name, target_ns }
}
pub fn is_ns_qualified(&self) -> bool {
!self.target_ns.is_none()
}
pub fn is_def(&self) -> bool {
self.name == "def"
}
}
impl PartialEq for Symbol {
fn eq(&self, other: &Self) -> bool {
self.name == other.name
}
}
impl Eq for Symbol {}
impl Node for Symbol {
fn get_type_str(&self) -> &str {
"Symbol"
}
}
impl fmt::Display for Symbol {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
write!(f, "{}", &self.name)
}
}