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.github/FUNDING.yml
vendored
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.github/FUNDING.yml
vendored
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|
|||
# These are supported funding model platforms
|
||||
|
||||
github: [edg-l]
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1
.gitignore
vendored
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1
.gitignore
vendored
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|
|||
/target
|
1018
Cargo.lock
generated
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1018
Cargo.lock
generated
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26
Cargo.toml
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Cargo.toml
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|
|||
[package]
|
||||
name = "edlang"
|
||||
version = "0.1.0"
|
||||
authors = ["Edgar Luque <edgar@edgarluque.com>"]
|
||||
description = "A experimental language using LLVM."
|
||||
edition = "2021"
|
||||
readme = "README.md"
|
||||
keywords = ["llvm", "compiler"]
|
||||
license = "AGPL-3.0-only"
|
||||
categories = ["compilers"]
|
||||
|
||||
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
|
||||
|
||||
[dependencies]
|
||||
clap = { version = "4.1.13", features = ["derive"] }
|
||||
color-eyre = "0.6.2"
|
||||
itertools = "0.10.5"
|
||||
lalrpop-util = { version = "0.19.9", features = ["lexer"] }
|
||||
regex = "1.7.3"
|
||||
tracing = "0.1.37"
|
||||
tracing-subscriber = { version = "0.3.16", features = ["env-filter"] }
|
||||
inkwell = { version = "0.1.1", features = ["llvm15-0"] }
|
||||
annotate-snippets = { version = "0.9.1", features = ["color"] }
|
||||
|
||||
[build-dependencies]
|
||||
lalrpop = "0.19.9"
|
661
LICENSE
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661
LICENSE
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|
@ -0,0 +1,661 @@
|
|||
GNU AFFERO GENERAL PUBLIC LICENSE
|
||||
Version 3, 19 November 2007
|
||||
|
||||
Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/>
|
||||
Everyone is permitted to copy and distribute verbatim copies
|
||||
of this license document, but changing it is not allowed.
|
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|
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Preamble
|
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The GNU Affero General Public License is a free, copyleft license for
|
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The licenses for most software and other practical works are designed
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|
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When we speak of free software, we are referring to freedom, not
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The precise terms and conditions for copying, distribution and
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||||
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|
||||
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|
||||
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|
||||
|
||||
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|
||||
|
||||
You may not propagate or modify a covered work except as expressly
|
||||
provided under this License. Any attempt otherwise to propagate or
|
||||
modify it is void, and will automatically terminate your rights under
|
||||
this License (including any patent licenses granted under the third
|
||||
paragraph of section 11).
|
||||
|
||||
However, if you cease all violation of this License, then your
|
||||
license from a particular copyright holder is reinstated (a)
|
||||
provisionally, unless and until the copyright holder explicitly and
|
||||
finally terminates your license, and (b) permanently, if the copyright
|
||||
holder fails to notify you of the violation by some reasonable means
|
||||
prior to 60 days after the cessation.
|
||||
|
||||
Moreover, your license from a particular copyright holder is
|
||||
reinstated permanently if the copyright holder notifies you of the
|
||||
violation by some reasonable means, this is the first time you have
|
||||
received notice of violation of this License (for any work) from that
|
||||
copyright holder, and you cure the violation prior to 30 days after
|
||||
your receipt of the notice.
|
||||
|
||||
Termination of your rights under this section does not terminate the
|
||||
licenses of parties who have received copies or rights from you under
|
||||
this License. If your rights have been terminated and not permanently
|
||||
reinstated, you do not qualify to receive new licenses for the same
|
||||
material under section 10.
|
||||
|
||||
9. Acceptance Not Required for Having Copies.
|
||||
|
||||
You are not required to accept this License in order to receive or
|
||||
run a copy of the Program. Ancillary propagation of a covered work
|
||||
occurring solely as a consequence of using peer-to-peer transmission
|
||||
to receive a copy likewise does not require acceptance. However,
|
||||
nothing other than this License grants you permission to propagate or
|
||||
modify any covered work. These actions infringe copyright if you do
|
||||
not accept this License. Therefore, by modifying or propagating a
|
||||
covered work, you indicate your acceptance of this License to do so.
|
||||
|
||||
10. Automatic Licensing of Downstream Recipients.
|
||||
|
||||
Each time you convey a covered work, the recipient automatically
|
||||
receives a license from the original licensors, to run, modify and
|
||||
propagate that work, subject to this License. You are not responsible
|
||||
for enforcing compliance by third parties with this License.
|
||||
|
||||
An "entity transaction" is a transaction transferring control of an
|
||||
organization, or substantially all assets of one, or subdividing an
|
||||
organization, or merging organizations. If propagation of a covered
|
||||
work results from an entity transaction, each party to that
|
||||
transaction who receives a copy of the work also receives whatever
|
||||
licenses to the work the party's predecessor in interest had or could
|
||||
give under the previous paragraph, plus a right to possession of the
|
||||
Corresponding Source of the work from the predecessor in interest, if
|
||||
the predecessor has it or can get it with reasonable efforts.
|
||||
|
||||
You may not impose any further restrictions on the exercise of the
|
||||
rights granted or affirmed under this License. For example, you may
|
||||
not impose a license fee, royalty, or other charge for exercise of
|
||||
rights granted under this License, and you may not initiate litigation
|
||||
(including a cross-claim or counterclaim in a lawsuit) alleging that
|
||||
any patent claim is infringed by making, using, selling, offering for
|
||||
sale, or importing the Program or any portion of it.
|
||||
|
||||
11. Patents.
|
||||
|
||||
A "contributor" is a copyright holder who authorizes use under this
|
||||
License of the Program or a work on which the Program is based. The
|
||||
work thus licensed is called the contributor's "contributor version".
|
||||
|
||||
A contributor's "essential patent claims" are all patent claims
|
||||
owned or controlled by the contributor, whether already acquired or
|
||||
hereafter acquired, that would be infringed by some manner, permitted
|
||||
by this License, of making, using, or selling its contributor version,
|
||||
but do not include claims that would be infringed only as a
|
||||
consequence of further modification of the contributor version. For
|
||||
purposes of this definition, "control" includes the right to grant
|
||||
patent sublicenses in a manner consistent with the requirements of
|
||||
this License.
|
||||
|
||||
Each contributor grants you a non-exclusive, worldwide, royalty-free
|
||||
patent license under the contributor's essential patent claims, to
|
||||
make, use, sell, offer for sale, import and otherwise run, modify and
|
||||
propagate the contents of its contributor version.
|
||||
|
||||
In the following three paragraphs, a "patent license" is any express
|
||||
agreement or commitment, however denominated, not to enforce a patent
|
||||
(such as an express permission to practice a patent or covenant not to
|
||||
sue for patent infringement). To "grant" such a patent license to a
|
||||
party means to make such an agreement or commitment not to enforce a
|
||||
patent against the party.
|
||||
|
||||
If you convey a covered work, knowingly relying on a patent license,
|
||||
and the Corresponding Source of the work is not available for anyone
|
||||
to copy, free of charge and under the terms of this License, through a
|
||||
publicly available network server or other readily accessible means,
|
||||
then you must either (1) cause the Corresponding Source to be so
|
||||
available, or (2) arrange to deprive yourself of the benefit of the
|
||||
patent license for this particular work, or (3) arrange, in a manner
|
||||
consistent with the requirements of this License, to extend the patent
|
||||
license to downstream recipients. "Knowingly relying" means you have
|
||||
actual knowledge that, but for the patent license, your conveying the
|
||||
covered work in a country, or your recipient's use of the covered work
|
||||
in a country, would infringe one or more identifiable patents in that
|
||||
country that you have reason to believe are valid.
|
||||
|
||||
If, pursuant to or in connection with a single transaction or
|
||||
arrangement, you convey, or propagate by procuring conveyance of, a
|
||||
covered work, and grant a patent license to some of the parties
|
||||
receiving the covered work authorizing them to use, propagate, modify
|
||||
or convey a specific copy of the covered work, then the patent license
|
||||
you grant is automatically extended to all recipients of the covered
|
||||
work and works based on it.
|
||||
|
||||
A patent license is "discriminatory" if it does not include within
|
||||
the scope of its coverage, prohibits the exercise of, or is
|
||||
conditioned on the non-exercise of one or more of the rights that are
|
||||
specifically granted under this License. You may not convey a covered
|
||||
work if you are a party to an arrangement with a third party that is
|
||||
in the business of distributing software, under which you make payment
|
||||
to the third party based on the extent of your activity of conveying
|
||||
the work, and under which the third party grants, to any of the
|
||||
parties who would receive the covered work from you, a discriminatory
|
||||
patent license (a) in connection with copies of the covered work
|
||||
conveyed by you (or copies made from those copies), or (b) primarily
|
||||
for and in connection with specific products or compilations that
|
||||
contain the covered work, unless you entered into that arrangement,
|
||||
or that patent license was granted, prior to 28 March 2007.
|
||||
|
||||
Nothing in this License shall be construed as excluding or limiting
|
||||
any implied license or other defenses to infringement that may
|
||||
otherwise be available to you under applicable patent law.
|
||||
|
||||
12. No Surrender of Others' Freedom.
|
||||
|
||||
If conditions are imposed on you (whether by court order, agreement or
|
||||
otherwise) that contradict the conditions of this License, they do not
|
||||
excuse you from the conditions of this License. If you cannot convey a
|
||||
covered work so as to satisfy simultaneously your obligations under this
|
||||
License and any other pertinent obligations, then as a consequence you may
|
||||
not convey it at all. For example, if you agree to terms that obligate you
|
||||
to collect a royalty for further conveying from those to whom you convey
|
||||
the Program, the only way you could satisfy both those terms and this
|
||||
License would be to refrain entirely from conveying the Program.
|
||||
|
||||
13. Remote Network Interaction; Use with the GNU General Public License.
|
||||
|
||||
Notwithstanding any other provision of this License, if you modify the
|
||||
Program, your modified version must prominently offer all users
|
||||
interacting with it remotely through a computer network (if your version
|
||||
supports such interaction) an opportunity to receive the Corresponding
|
||||
Source of your version by providing access to the Corresponding Source
|
||||
from a network server at no charge, through some standard or customary
|
||||
means of facilitating copying of software. This Corresponding Source
|
||||
shall include the Corresponding Source for any work covered by version 3
|
||||
of the GNU General Public License that is incorporated pursuant to the
|
||||
following paragraph.
|
||||
|
||||
Notwithstanding any other provision of this License, you have
|
||||
permission to link or combine any covered work with a work licensed
|
||||
under version 3 of the GNU General Public License into a single
|
||||
combined work, and to convey the resulting work. The terms of this
|
||||
License will continue to apply to the part which is the covered work,
|
||||
but the work with which it is combined will remain governed by version
|
||||
3 of the GNU General Public License.
|
||||
|
||||
14. Revised Versions of this License.
|
||||
|
||||
The Free Software Foundation may publish revised and/or new versions of
|
||||
the GNU Affero General Public License from time to time. Such new versions
|
||||
will be similar in spirit to the present version, but may differ in detail to
|
||||
address new problems or concerns.
|
||||
|
||||
Each version is given a distinguishing version number. If the
|
||||
Program specifies that a certain numbered version of the GNU Affero General
|
||||
Public License "or any later version" applies to it, you have the
|
||||
option of following the terms and conditions either of that numbered
|
||||
version or of any later version published by the Free Software
|
||||
Foundation. If the Program does not specify a version number of the
|
||||
GNU Affero General Public License, you may choose any version ever published
|
||||
by the Free Software Foundation.
|
||||
|
||||
If the Program specifies that a proxy can decide which future
|
||||
versions of the GNU Affero General Public License can be used, that proxy's
|
||||
public statement of acceptance of a version permanently authorizes you
|
||||
to choose that version for the Program.
|
||||
|
||||
Later license versions may give you additional or different
|
||||
permissions. However, no additional obligations are imposed on any
|
||||
author or copyright holder as a result of your choosing to follow a
|
||||
later version.
|
||||
|
||||
15. Disclaimer of Warranty.
|
||||
|
||||
THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
|
||||
APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
|
||||
HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
|
||||
OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
|
||||
THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
||||
PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
|
||||
IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
|
||||
ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
|
||||
|
||||
16. Limitation of Liability.
|
||||
|
||||
IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
|
||||
WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
|
||||
THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
|
||||
GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
|
||||
USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
|
||||
DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
|
||||
PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
|
||||
EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
|
||||
SUCH DAMAGES.
|
||||
|
||||
17. Interpretation of Sections 15 and 16.
|
||||
|
||||
If the disclaimer of warranty and limitation of liability provided
|
||||
above cannot be given local legal effect according to their terms,
|
||||
reviewing courts shall apply local law that most closely approximates
|
||||
an absolute waiver of all civil liability in connection with the
|
||||
Program, unless a warranty or assumption of liability accompanies a
|
||||
copy of the Program in return for a fee.
|
||||
|
||||
END OF TERMS AND CONDITIONS
|
||||
|
||||
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
|
||||
to attach them to the start of each source file to most effectively
|
||||
state the exclusion of warranty; and each file should have at least
|
||||
the "copyright" line and a pointer to where the full notice is found.
|
||||
|
||||
A edlang programming language compiler.
|
||||
Copyright (C) 2023 Edgar Luque
|
||||
|
||||
This program is free software: you can redistribute it and/or modify
|
||||
it under the terms of the GNU Affero General Public License as published
|
||||
by the Free Software Foundation, either version 3 of the License, or
|
||||
(at your option) any later version.
|
||||
|
||||
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 Affero General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU Affero General Public License
|
||||
along with this program. If not, see <https://www.gnu.org/licenses/>.
|
||||
|
||||
Also add information on how to contact you by electronic and paper mail.
|
||||
|
||||
If your software can interact with users remotely through a computer
|
||||
network, you should also make sure that it provides a way for users to
|
||||
get its source. For example, if your program is a web application, its
|
||||
interface could display a "Source" link that leads users to an archive
|
||||
of the code. There are many ways you could offer source, and different
|
||||
solutions will be better for different programs; see section 13 for the
|
||||
specific requirements.
|
||||
|
||||
You should also get your employer (if you work as a programmer) or school,
|
||||
if any, to sign a "copyright disclaimer" for the program, if necessary.
|
||||
For more information on this, and how to apply and follow the GNU AGPL, see
|
||||
<https://www.gnu.org/licenses/>.
|
16
README.md
Normal file
16
README.md
Normal file
|
@ -0,0 +1,16 @@
|
|||
# edlang
|
||||
|
||||
A toy language I'm making to learn LLVM and compilers.
|
||||
|
||||
Syntax is subject to change any time right now. It has a rusty style for now.
|
||||
|
||||
```
|
||||
fn add(a: i64, b: i64) -> i64 {
|
||||
return a + b;
|
||||
}
|
||||
|
||||
fn main() {
|
||||
let x = 2 + 3;
|
||||
let y = add(x, 4);
|
||||
}
|
||||
```
|
9
example.ed
Normal file
9
example.ed
Normal file
|
@ -0,0 +1,9 @@
|
|||
let x = 2;
|
||||
fn add(a: i64, b: i64) -> i64 {
|
||||
return a + b;
|
||||
}
|
||||
|
||||
fn main() {
|
||||
let x = 2 + 3;
|
||||
let y = add(x, 4);
|
||||
}
|
37
src/ast/function.rs
Normal file
37
src/ast/function.rs
Normal file
|
@ -0,0 +1,37 @@
|
|||
use super::{Identifier, SpanValue, Statement};
|
||||
|
||||
#[derive(Debug, Clone, PartialEq, Eq, PartialOrd, Ord, Hash)]
|
||||
pub struct Parameter {
|
||||
pub ident: Identifier,
|
||||
pub type_name: Identifier,
|
||||
}
|
||||
|
||||
impl Parameter {
|
||||
pub fn new(ident: Identifier, type_name: Identifier) -> Self {
|
||||
Self { ident, type_name }
|
||||
}
|
||||
}
|
||||
|
||||
#[derive(Debug, Clone, PartialEq, Eq, PartialOrd, Ord, Hash)]
|
||||
pub struct Function {
|
||||
pub ident: Identifier,
|
||||
pub params: Vec<Parameter>,
|
||||
pub body: Vec<SpanValue<Statement>>,
|
||||
pub return_type: Option<Identifier>,
|
||||
}
|
||||
|
||||
impl Function {
|
||||
pub fn new(
|
||||
ident: Identifier,
|
||||
params: Vec<Parameter>,
|
||||
body: Vec<SpanValue<Statement>>,
|
||||
return_type: Option<Identifier>,
|
||||
) -> Self {
|
||||
Self {
|
||||
ident,
|
||||
params,
|
||||
body,
|
||||
return_type,
|
||||
}
|
||||
}
|
||||
}
|
68
src/ast/mod.rs
Normal file
68
src/ast/mod.rs
Normal file
|
@ -0,0 +1,68 @@
|
|||
pub mod function;
|
||||
pub mod span;
|
||||
pub mod statement;
|
||||
|
||||
pub use function::*;
|
||||
pub use span::*;
|
||||
pub use statement::*;
|
||||
|
||||
#[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash)]
|
||||
pub enum OpCode {
|
||||
Add,
|
||||
Sub,
|
||||
Mul,
|
||||
Div,
|
||||
Rem,
|
||||
}
|
||||
|
||||
impl OpCode {
|
||||
pub fn to_str(&self) -> &'static str {
|
||||
match self {
|
||||
OpCode::Add => "addi",
|
||||
OpCode::Sub => "subi",
|
||||
OpCode::Mul => "muli",
|
||||
OpCode::Div => "divi",
|
||||
OpCode::Rem => "remi",
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
#[derive(Debug, Clone, PartialEq, Eq, PartialOrd, Ord, Hash)]
|
||||
pub struct Identifier(pub SpanValue<String>);
|
||||
|
||||
#[derive(Debug, Clone, PartialEq, Eq, PartialOrd, Ord, Hash)]
|
||||
pub struct Number(pub SpanValue<i64>);
|
||||
|
||||
#[derive(Debug, Clone, PartialEq, Eq, PartialOrd, Ord, Hash)]
|
||||
pub enum Term {
|
||||
Identifier(Identifier),
|
||||
Number(Number),
|
||||
}
|
||||
|
||||
#[derive(Debug, Clone, PartialEq, Eq, PartialOrd, Ord, Hash)]
|
||||
pub enum Expr {
|
||||
Term(Term),
|
||||
Call(Identifier, Vec<SpanValue<Box<Self>>>),
|
||||
Op(SpanValue<Box<Self>>, OpCode, SpanValue<Box<Self>>),
|
||||
}
|
||||
|
||||
impl Expr {
|
||||
pub fn new_ident(value: Identifier) -> Self {
|
||||
Self::Term(Term::Identifier(value))
|
||||
}
|
||||
|
||||
pub fn new_number(value: Number) -> Self {
|
||||
Self::Term(Term::Number(value))
|
||||
}
|
||||
}
|
||||
|
||||
#[derive(Debug, Clone)]
|
||||
pub struct Program {
|
||||
pub statements: Vec<SpanValue<Statement>>,
|
||||
}
|
||||
|
||||
impl Program {
|
||||
pub fn new(statements: Vec<SpanValue<Statement>>) -> Self {
|
||||
Self { statements }
|
||||
}
|
||||
}
|
32
src/ast/span.rs
Normal file
32
src/ast/span.rs
Normal file
|
@ -0,0 +1,32 @@
|
|||
#[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash)]
|
||||
pub struct Span {
|
||||
pub from: usize,
|
||||
pub to: usize,
|
||||
}
|
||||
|
||||
impl Span {
|
||||
pub fn new(from: usize, to: usize) -> Self {
|
||||
Self { from, to }
|
||||
}
|
||||
}
|
||||
|
||||
#[derive(Debug, Clone, PartialEq, Eq, PartialOrd, Ord, Hash)]
|
||||
pub struct SpanValue<T> {
|
||||
pub span: Span,
|
||||
pub value: T,
|
||||
}
|
||||
|
||||
impl<T> SpanValue<T> {
|
||||
pub fn new(l: usize, value: T, r: usize) -> Self {
|
||||
Self {
|
||||
span: Span::new(l, r),
|
||||
value,
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
impl From<Span> for (usize, usize) {
|
||||
fn from(value: Span) -> Self {
|
||||
(value.from, value.to)
|
||||
}
|
||||
}
|
29
src/ast/statement.rs
Normal file
29
src/ast/statement.rs
Normal file
|
@ -0,0 +1,29 @@
|
|||
use super::{Expr, Function, Identifier, SpanValue};
|
||||
|
||||
#[derive(Debug, Clone, PartialEq, Eq, PartialOrd, Ord, Hash)]
|
||||
pub struct StatementBody {
|
||||
pub ident: Identifier,
|
||||
pub expr: SpanValue<Box<Expr>>,
|
||||
}
|
||||
|
||||
#[derive(Debug, Clone, PartialEq, Eq, PartialOrd, Ord, Hash)]
|
||||
pub enum Statement {
|
||||
Assignment(StatementBody),
|
||||
Definition(StatementBody),
|
||||
Return(SpanValue<Box<Expr>>),
|
||||
Function(Function),
|
||||
}
|
||||
|
||||
impl Statement {
|
||||
pub fn new_assignment(ident: Identifier, expr: SpanValue<Box<Expr>>) -> Self {
|
||||
Self::Assignment(StatementBody { ident, expr })
|
||||
}
|
||||
|
||||
pub fn new_definition(ident: Identifier, expr: SpanValue<Box<Expr>>) -> Self {
|
||||
Self::Definition(StatementBody { ident, expr })
|
||||
}
|
||||
|
||||
pub fn new_function(func: Function) -> Self {
|
||||
Self::Function(func)
|
||||
}
|
||||
}
|
60
src/check.rs
Normal file
60
src/check.rs
Normal file
|
@ -0,0 +1,60 @@
|
|||
use crate::{
|
||||
ast::{self, Statement},
|
||||
codegen::ProgramData,
|
||||
};
|
||||
use annotate_snippets::{
|
||||
display_list::{DisplayList, FormatOptions},
|
||||
snippet::{Annotation, AnnotationType, Slice, Snippet, SourceAnnotation},
|
||||
};
|
||||
|
||||
#[derive(Debug)]
|
||||
pub enum Check<'a> {
|
||||
Warning(DisplayList<'a>),
|
||||
Error(DisplayList<'a>),
|
||||
}
|
||||
|
||||
/// Checks this is a valid edlang program.
|
||||
pub fn check<'a>(data: &'a ProgramData, ast: &ast::Program) -> Vec<Check<'a>> {
|
||||
let mut errors = vec![];
|
||||
|
||||
for statement in &ast.statements {
|
||||
match &statement.value {
|
||||
Statement::Assignment(_x) => {
|
||||
// can't have a top level assignment yet.
|
||||
let snippet = Snippet {
|
||||
title: Some(Annotation {
|
||||
id: None,
|
||||
label: Some("unexpected assignment at top level"),
|
||||
annotation_type: AnnotationType::Error,
|
||||
}),
|
||||
footer: vec![],
|
||||
slices: vec![Slice {
|
||||
source: &data.source,
|
||||
line_start: 1,
|
||||
fold: true,
|
||||
origin: Some(&data.filename),
|
||||
annotations: vec![
|
||||
SourceAnnotation {
|
||||
label: "unexpected statement",
|
||||
annotation_type: AnnotationType::Error,
|
||||
range: statement.span.into(),
|
||||
},
|
||||
],
|
||||
}],
|
||||
opt: FormatOptions {
|
||||
color: true,
|
||||
..Default::default()
|
||||
},
|
||||
};
|
||||
|
||||
let dl = DisplayList::from(snippet);
|
||||
errors.push(Check::Error(dl));
|
||||
}
|
||||
Statement::Definition(_) => todo!(),
|
||||
Statement::Return(_) => unreachable!(),
|
||||
Statement::Function(_function) => {}
|
||||
}
|
||||
}
|
||||
|
||||
errors
|
||||
}
|
277
src/codegen.rs
Normal file
277
src/codegen.rs
Normal file
|
@ -0,0 +1,277 @@
|
|||
use std::collections::HashMap;
|
||||
|
||||
use color_eyre::Result;
|
||||
use inkwell::{
|
||||
basic_block::BasicBlock,
|
||||
builder::Builder,
|
||||
context::Context,
|
||||
module::Module,
|
||||
types::{BasicMetadataTypeEnum, BasicType, BasicTypeEnum},
|
||||
values::{BasicMetadataValueEnum, BasicValue, BasicValueEnum},
|
||||
};
|
||||
use itertools::{Either, Itertools};
|
||||
|
||||
use statement::Statement;
|
||||
|
||||
use crate::ast::{self, statement, Expr, Function, Identifier, OpCode, SpanValue, Term};
|
||||
|
||||
#[derive(Debug, Clone)]
|
||||
pub struct ProgramData {
|
||||
pub filename: String,
|
||||
pub source: String,
|
||||
}
|
||||
|
||||
impl ProgramData {
|
||||
pub fn new(filename: &str, source: &str) -> Self {
|
||||
Self {
|
||||
filename: filename.to_string(),
|
||||
source: source.to_string(),
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
pub struct CodeGen<'ctx> {
|
||||
context: &'ctx Context,
|
||||
pub module: Module<'ctx>,
|
||||
builder: Builder<'ctx>,
|
||||
_program: ProgramData,
|
||||
ast: ast::Program,
|
||||
}
|
||||
|
||||
impl<'ctx> CodeGen<'ctx> {
|
||||
pub fn new(
|
||||
context: &'ctx Context,
|
||||
module_name: &str,
|
||||
_program: ProgramData,
|
||||
ast: ast::Program,
|
||||
) -> Result<Self> {
|
||||
let module = context.create_module(module_name);
|
||||
|
||||
let codegen = CodeGen {
|
||||
context,
|
||||
module,
|
||||
builder: context.create_builder(),
|
||||
_program,
|
||||
ast,
|
||||
};
|
||||
|
||||
Ok(codegen)
|
||||
}
|
||||
|
||||
pub fn compile_ast(&self) -> Result<()> {
|
||||
let mut functions = vec![];
|
||||
|
||||
// todo fix the grammar so top level statements are only functions and static vars.
|
||||
|
||||
// create the llvm functions first.
|
||||
for statement in &self.ast.statements {
|
||||
match &statement.value {
|
||||
Statement::Assignment(_) => unreachable!(),
|
||||
Statement::Definition(_) => todo!(),
|
||||
Statement::Return(_) => unreachable!(),
|
||||
Statement::Function(function) => {
|
||||
functions.push(function);
|
||||
self.compile_function_signature(function)?;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// implement them.
|
||||
for function in functions {
|
||||
self.compile_function(function)?;
|
||||
}
|
||||
|
||||
Ok(())
|
||||
}
|
||||
|
||||
pub fn generated_code(&self) -> String {
|
||||
if let Err(err) = self.module.verify() {
|
||||
eprintln!("error:\n{}", err);
|
||||
}
|
||||
self.module.print_to_string().to_str().unwrap().to_string()
|
||||
}
|
||||
|
||||
fn get_llvm_type(&self, id: &str) -> Result<BasicTypeEnum<'ctx>> {
|
||||
Ok(match id {
|
||||
"i64" => self.context.i64_type().as_basic_type_enum(),
|
||||
"i32" => self.context.i32_type().as_basic_type_enum(),
|
||||
"i8" => self.context.i8_type().as_basic_type_enum(),
|
||||
"u8" => self.context.i8_type().as_basic_type_enum(),
|
||||
_ => todo!(),
|
||||
})
|
||||
}
|
||||
|
||||
/// creates the llvm function without the body, so other function bodies can call it.
|
||||
fn compile_function_signature(&self, function: &Function) -> Result<()> {
|
||||
let args_types: Vec<BasicTypeEnum<'ctx>> = function
|
||||
.params
|
||||
.iter()
|
||||
.map(|param| param.type_name.0.value.as_str())
|
||||
.map(|t| self.get_llvm_type(t))
|
||||
.try_collect()?;
|
||||
|
||||
let args_types: Vec<BasicMetadataTypeEnum<'ctx>> =
|
||||
args_types.into_iter().map(|t| t.into()).collect_vec();
|
||||
|
||||
let fn_type = match &function.return_type {
|
||||
Some(id) => self.get_llvm_type(&id.0.value)?.fn_type(&args_types, false),
|
||||
None => self.context.void_type().fn_type(&args_types, false),
|
||||
};
|
||||
|
||||
self.module
|
||||
.add_function(&function.ident.0.value, fn_type, None);
|
||||
|
||||
Ok(())
|
||||
}
|
||||
|
||||
fn compile_function(&self, function: &Function) -> Result<()> {
|
||||
let func = self.module.get_function(&function.ident.0.value).unwrap();
|
||||
let entry_block = self.context.append_basic_block(func, "entry");
|
||||
|
||||
self.builder.position_at_end(entry_block);
|
||||
|
||||
let mut variables: HashMap<String, BasicValueEnum<'ctx>> = HashMap::new();
|
||||
|
||||
for (i, param) in function.params.iter().enumerate() {
|
||||
let id = param.ident.clone();
|
||||
variables.insert(
|
||||
id.0.value.clone(),
|
||||
func.get_nth_param(i.try_into().unwrap())
|
||||
.expect("parameter"),
|
||||
);
|
||||
}
|
||||
|
||||
// todo: check function has return?
|
||||
for statement in &function.body {
|
||||
self.compile_statement(&entry_block, statement, &mut variables)?;
|
||||
}
|
||||
|
||||
if function.return_type.is_none() {
|
||||
self.builder.build_return(None);
|
||||
}
|
||||
|
||||
Ok(())
|
||||
}
|
||||
|
||||
fn compile_statement(
|
||||
&self,
|
||||
block: &BasicBlock,
|
||||
statement: &SpanValue<Statement>,
|
||||
variables: &mut HashMap<String, BasicValueEnum<'ctx>>,
|
||||
) -> Result<()> {
|
||||
match &statement.value {
|
||||
// Variable assignment
|
||||
Statement::Assignment(body) => {
|
||||
let result = self
|
||||
.compile_expression(block, &body.expr, variables)?
|
||||
.expect("should have result");
|
||||
|
||||
variables.insert(body.ident.0.value.clone(), result);
|
||||
}
|
||||
Statement::Definition(body) => {
|
||||
let result = self
|
||||
.compile_expression(block, &body.expr, variables)?
|
||||
.expect("should have result");
|
||||
|
||||
variables.insert(body.ident.0.value.clone(), result);
|
||||
}
|
||||
Statement::Return(ret) => {
|
||||
let result = self
|
||||
.compile_expression(block, ret, variables)?
|
||||
.expect("should have result");
|
||||
self.builder.build_return(Some(&result));
|
||||
}
|
||||
Statement::Function(_function) => unreachable!(),
|
||||
};
|
||||
|
||||
Ok(())
|
||||
}
|
||||
|
||||
pub fn compile_expression(
|
||||
&self,
|
||||
block: &BasicBlock,
|
||||
expr: &SpanValue<Box<Expr>>,
|
||||
variables: &mut HashMap<String, BasicValueEnum<'ctx>>,
|
||||
) -> Result<Option<BasicValueEnum<'ctx>>> {
|
||||
Ok(match &*expr.value {
|
||||
Expr::Term(term) => Some(self.compile_term(term, variables)?),
|
||||
Expr::Call(func_id, args) => self.compile_call(block, func_id, args, variables)?,
|
||||
Expr::Op(lhs, op, rhs) => Some(self.compile_op(block, lhs, op, rhs, variables)?),
|
||||
})
|
||||
}
|
||||
|
||||
pub fn compile_call(
|
||||
&self,
|
||||
block: &BasicBlock,
|
||||
func_id: &Identifier,
|
||||
args: &[SpanValue<Box<Expr>>],
|
||||
variables: &mut HashMap<String, BasicValueEnum<'ctx>>,
|
||||
) -> Result<Option<BasicValueEnum<'ctx>>> {
|
||||
let func_name = &func_id.0.value;
|
||||
let function = self.module.get_function(func_name).expect("should exist");
|
||||
|
||||
let mut value_args: Vec<BasicMetadataValueEnum> = Vec::with_capacity(args.len());
|
||||
|
||||
for arg in args {
|
||||
let res = self
|
||||
.compile_expression(block, arg, variables)?
|
||||
.expect("should have result");
|
||||
value_args.push(res.into());
|
||||
}
|
||||
|
||||
let result = self
|
||||
.builder
|
||||
.build_call(function, &value_args, &format!("{func_name}_call"))
|
||||
.try_as_basic_value();
|
||||
|
||||
Ok(match result {
|
||||
Either::Left(val) => Some(val),
|
||||
Either::Right(_) => None,
|
||||
})
|
||||
}
|
||||
|
||||
pub fn compile_op(
|
||||
&self,
|
||||
block: &BasicBlock,
|
||||
lhs: &SpanValue<Box<Expr>>,
|
||||
op: &OpCode,
|
||||
rhs: &SpanValue<Box<Expr>>,
|
||||
variables: &mut HashMap<String, BasicValueEnum<'ctx>>,
|
||||
) -> Result<BasicValueEnum<'ctx>> {
|
||||
let lhs = self
|
||||
.compile_expression(block, lhs, variables)?
|
||||
.expect("should have result")
|
||||
.into_int_value();
|
||||
let rhs = self
|
||||
.compile_expression(block, rhs, variables)?
|
||||
.expect("should have result")
|
||||
.into_int_value();
|
||||
|
||||
let result = match op {
|
||||
OpCode::Add => self.builder.build_int_add(lhs, rhs, "add"),
|
||||
OpCode::Sub => self.builder.build_int_sub(lhs, rhs, "sub"),
|
||||
OpCode::Mul => self.builder.build_int_mul(lhs, rhs, "mul"),
|
||||
OpCode::Div => self.builder.build_int_signed_div(lhs, rhs, "div"),
|
||||
OpCode::Rem => self.builder.build_int_signed_rem(lhs, rhs, "rem"),
|
||||
};
|
||||
|
||||
Ok(result.as_basic_value_enum())
|
||||
}
|
||||
|
||||
pub fn compile_term(
|
||||
&self,
|
||||
term: &Term,
|
||||
variables: &mut HashMap<String, BasicValueEnum<'ctx>>,
|
||||
) -> Result<BasicValueEnum<'ctx>> {
|
||||
let value = match term {
|
||||
Term::Identifier(ident) => *variables.get(&ident.0.value).expect("value"),
|
||||
Term::Number(num) => self
|
||||
.context
|
||||
.i64_type()
|
||||
.const_int(num.0.value.try_into()?, true)
|
||||
.as_basic_value_enum(),
|
||||
};
|
||||
|
||||
Ok(value)
|
||||
}
|
||||
}
|
86
src/grammar.lalrpop
Normal file
86
src/grammar.lalrpop
Normal file
|
@ -0,0 +1,86 @@
|
|||
use std::str::FromStr;
|
||||
use crate::ast::*;
|
||||
|
||||
grammar;
|
||||
|
||||
Comma<T>: Vec<T> = {
|
||||
<mut v:(<T> ",")*> <e:T?> => match e {
|
||||
None => v,
|
||||
Some(e) => {
|
||||
v.push(e);
|
||||
v
|
||||
}
|
||||
}
|
||||
};
|
||||
|
||||
ExprOp: OpCode = {
|
||||
"+" => OpCode::Add,
|
||||
"-" => OpCode::Sub,
|
||||
};
|
||||
|
||||
FactorOp: OpCode = {
|
||||
"*" => OpCode::Mul,
|
||||
"/" => OpCode::Div,
|
||||
"%" => OpCode::Rem,
|
||||
}
|
||||
|
||||
Tier<Op,NextTier>: SpanValue<Box<Expr>> = {
|
||||
<l:@L> <t:Tier<Op,NextTier>> <o:Op> <n:NextTier> <r:@R> => SpanValue::new(l, Box::new(Expr::Op(t, o, n)), r),
|
||||
NextTier
|
||||
};
|
||||
|
||||
Expr = Tier<ExprOp, Factor>;
|
||||
Factor = Tier<FactorOp, Term>;
|
||||
|
||||
// Terms: variables, literals, calls
|
||||
Term: SpanValue<Box<Expr>> = {
|
||||
<l:@L> <i:Identifier> <r:@R> => SpanValue::new(l, Box::new(Expr::new_ident(i)), r),
|
||||
<l:@L> <n:Num> <r:@R> => SpanValue::new(l, Box::new(Expr::new_number(n)), r),
|
||||
<l:@L> <i:Identifier> "(" <values:Comma<Term>> ")" <r:@R> => SpanValue::new(l, Box::new(Expr::Call(i, values)), r),
|
||||
"(" <Term> ")"
|
||||
};
|
||||
|
||||
Identifier: Identifier = {
|
||||
<l:@L> <i:r"[a-zA-Z][\w]*"> <r:@R> => Identifier(SpanValue::new(l, i.to_owned(), r)),
|
||||
};
|
||||
|
||||
Num: Number = <l:@L> <n:r"[0-9]+"> <r:@R> => Number(SpanValue::new(l, i64::from_str(n).unwrap(), r));
|
||||
|
||||
// Function handling
|
||||
Param: Parameter = {
|
||||
<Identifier> ":" <Identifier> => Parameter::new(<>)
|
||||
};
|
||||
|
||||
Params = Comma<Param>;
|
||||
|
||||
FunctionReturn: Identifier = {
|
||||
"->" <i:Identifier> => i,
|
||||
}
|
||||
|
||||
Function: Function = {
|
||||
"fn" <i:Identifier> "(" <a:Params> ")" <r:FunctionReturn?> "{" <s:Statements> "}" => Function::new(i, a, s, r)
|
||||
}
|
||||
|
||||
// statements not including function definitions
|
||||
BasicStatement: SpanValue<Statement> = {
|
||||
<l:@L> "let" <i:Identifier> "=" <e:Expr> ";" <r:@R> => SpanValue::new(l, Statement::new_assignment(i, e), r),
|
||||
<l:@L> <i:Identifier> "=" <e:Expr> ";" <r:@R> => SpanValue::new(l, Statement::new_definition(i, e), r),
|
||||
<l:@L> "return" <e:Expr> ";" <r:@R> => SpanValue::new(l, Statement::Return(e), r),
|
||||
};
|
||||
|
||||
Statement: SpanValue<Statement> = {
|
||||
BasicStatement,
|
||||
<l:@L> <f:Function> <r:@R> => SpanValue::new(l, Statement::new_function(f), r),
|
||||
};
|
||||
|
||||
Statements: Vec<SpanValue<Statement>> = {
|
||||
Statement => vec![<>],
|
||||
<mut s:Statements> <n:Statement> => {
|
||||
s.push(n);
|
||||
s
|
||||
},
|
||||
};
|
||||
|
||||
pub Program: Program = {
|
||||
Statements => Program::new(<>)
|
||||
}
|
155
src/main.rs
Normal file
155
src/main.rs
Normal file
|
@ -0,0 +1,155 @@
|
|||
#![allow(clippy::too_many_arguments)]
|
||||
|
||||
use check::Check;
|
||||
use clap::{Parser, Subcommand};
|
||||
use color_eyre::Result;
|
||||
use inkwell::{context::Context, execution_engine::JitFunction, OptimizationLevel};
|
||||
use lalrpop_util::lalrpop_mod;
|
||||
use std::{fs, path::PathBuf};
|
||||
|
||||
use crate::codegen::ProgramData;
|
||||
|
||||
pub mod ast;
|
||||
pub mod check;
|
||||
pub mod codegen;
|
||||
|
||||
lalrpop_mod!(pub grammar);
|
||||
|
||||
#[derive(Parser)]
|
||||
#[command(
|
||||
author,
|
||||
version,
|
||||
about,
|
||||
long_about = r#"A experimental language using LLVM."#
|
||||
)]
|
||||
struct Args {
|
||||
#[command(subcommand)]
|
||||
command: Commands,
|
||||
}
|
||||
|
||||
#[derive(Subcommand)]
|
||||
enum Commands {
|
||||
/// Check if the code is valid.
|
||||
Check {
|
||||
/// The input file.
|
||||
input: PathBuf,
|
||||
},
|
||||
/// Compile the edlang source file.
|
||||
Compile {
|
||||
/// The input file.
|
||||
input: PathBuf,
|
||||
|
||||
/// Output optimized llvm ir.
|
||||
#[arg(short, long)]
|
||||
optimize: bool,
|
||||
|
||||
/// The output file. If not specified its output will be stdout.
|
||||
#[arg(short, long)]
|
||||
output: Option<PathBuf>,
|
||||
|
||||
/// Turn on debug info.
|
||||
#[arg(short, long)]
|
||||
debug: bool,
|
||||
},
|
||||
/// Compile and run a program. Main needs to return nothing.
|
||||
Run {
|
||||
/// The input file.
|
||||
input: PathBuf,
|
||||
},
|
||||
}
|
||||
|
||||
fn check_program(program: &ProgramData, ast: &ast::Program) -> bool {
|
||||
let errors = check::check(program, ast);
|
||||
|
||||
let mut error_count = 0;
|
||||
let mut warn_count = 0;
|
||||
for error in errors {
|
||||
match error {
|
||||
Check::Warning(x) => {
|
||||
warn_count += 1;
|
||||
println!("{}", x)
|
||||
}
|
||||
Check::Error(x) => {
|
||||
error_count += 1;
|
||||
println!("{}", x)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
println!("Warnings: {warn_count}");
|
||||
println!("Errors: {error_count}");
|
||||
|
||||
error_count == 0
|
||||
}
|
||||
|
||||
fn main() -> Result<()> {
|
||||
color_eyre::install()?;
|
||||
tracing_subscriber::fmt::init();
|
||||
let args = Args::parse();
|
||||
|
||||
match args.command {
|
||||
Commands::Check { input } => {
|
||||
let code = fs::read_to_string(&input)?;
|
||||
|
||||
let parser = grammar::ProgramParser::new();
|
||||
let ast = parser.parse(&code).unwrap();
|
||||
|
||||
let str_path = input.to_string_lossy();
|
||||
let program = ProgramData::new(&str_path, &code);
|
||||
check_program(&program, &ast);
|
||||
}
|
||||
Commands::Compile { input, output, debug: _, optimize: _ } => {
|
||||
let code = fs::read_to_string(&input)?;
|
||||
|
||||
let parser = grammar::ProgramParser::new();
|
||||
let ast = parser.parse(&code).unwrap();
|
||||
|
||||
let str_path = input.to_string_lossy();
|
||||
let program = ProgramData::new(&str_path, &code);
|
||||
|
||||
let file_name = input.file_name().unwrap().to_string_lossy();
|
||||
|
||||
if !check_program(&program, &ast) {
|
||||
return Ok(());
|
||||
}
|
||||
|
||||
let context = Context::create();
|
||||
let codegen = codegen::CodeGen::new(&context, &file_name, program, ast)?;
|
||||
codegen.compile_ast()?;
|
||||
let generated_llvm_ir = codegen.generated_code();
|
||||
|
||||
if let Some(output) = output {
|
||||
fs::write(output, generated_llvm_ir)?;
|
||||
} else {
|
||||
println!("{generated_llvm_ir}");
|
||||
}
|
||||
}
|
||||
Commands::Run { input } => {
|
||||
let code = fs::read_to_string(&input)?;
|
||||
|
||||
let parser = grammar::ProgramParser::new();
|
||||
let ast = parser.parse(&code).unwrap();
|
||||
|
||||
let str_path = input.to_string_lossy();
|
||||
let program = ProgramData::new(&str_path, &code);
|
||||
|
||||
let file_name = input.file_name().unwrap().to_string_lossy();
|
||||
|
||||
let context = Context::create();
|
||||
let codegen = codegen::CodeGen::new(&context, &file_name, program, ast)?;
|
||||
codegen.compile_ast()?;
|
||||
let execution_engine = codegen
|
||||
.module
|
||||
.create_jit_execution_engine(OptimizationLevel::Aggressive)
|
||||
.unwrap();
|
||||
|
||||
unsafe {
|
||||
let main: JitFunction<unsafe extern "C" fn() -> ()> =
|
||||
execution_engine.get_function("main")?;
|
||||
main.call();
|
||||
};
|
||||
}
|
||||
}
|
||||
|
||||
Ok(())
|
||||
}
|
Loading…
Reference in a new issue