initial

2024-05-21 04:02:06 -05:00 · 2024-05-21 04:02:06 -05:00 · 512f00d53a
commit 512f00d53a
26 changed files with 898 additions and 0 deletions
--- a/.editorconfig
+++ b/.editorconfig
@ -0,0 +1,3 @@
+[*]
+indent_style = space
+indent_size = 2
--- a/.envrc
+++ b/.envrc
@ -0,0 +1,2 @@
+layout python3
+export PATH="$PATH:/Users/michael/Projects/codon/codon-deploy/bin"
--- a/.gitignore
+++ b/.gitignore
@ -0,0 +1,4 @@
+__pycache__
+*.pyc
+*.egg-info
+.direnv
--- a/book/.gitignore
+++ b/book/.gitignore
@ -0,0 +1 @@
+/book
--- a/book/book.toml
+++ b/book/book.toml
@ -0,0 +1,8 @@
+[book]
+authors = ["Michael Zhang"]
+language = "en"
+multilingual = false
+src = "src"
+title = "My Language Book"
+
+[preprocessor.katex]
--- a/book/src/SUMMARY.md
+++ b/book/src/SUMMARY.md
@ -0,0 +1,9 @@
+- [Front](./front.md)
+
+# First Part
+
+- [Parsing](./part1/parsing.md)
+
+# Specification
+
+- [Front](./spec/front.md)
--- a/book/src/front.md
+++ b/book/src/front.md
@ -0,0 +1,40 @@
+# My language
+
+The language we're going to build has the following features:
+
+- Interpreted
+- Dynamically typed
+- First class functions
+
+Later on, we'll start incorporating these features into it:
+
+- Static typing
+- Ahead-of-time compilation
+- Macros
+
+The focus is on promoting _good_ programming language principles, and creating a
+good ecosystem around the programming language to make it easily usable by
+others.
+
+Here's some example code:
+
+```
+from std import (x)
+
+fn main():
+  print "hello world!"
+```
+
+We'll be implementing this language first in Python, to a point of usability.
+However, this means all code written with our language will depend on a Python
+interpreter to exist. To free ourselves from this restriction we will port the
+interpreter into a compiler, written in our own language. This is called _self
+hosting_.[^1]
+
+As a result, the initial implementation of the language will include a subset of
+the features from the rest of the language. I'm going to call this "mylang0",
+with the extension `.my0`.
+
+[^1]: We could optionally also write a custom runtime, but that's essentially
+just re-implementing the existing interpreter in a language that can compile
+into free-standing binaries.
--- a/book/src/part1/parsing.md
+++ b/book/src/part1/parsing.md
@ -0,0 +1,8 @@
+# Parsing
+
+The grammar looks like this:
+
+```
+```
+
+https://bodil.lol/parser-combinators/
--- a/book/src/spec/front.md
+++ b/book/src/spec/front.md
@ -0,0 +1,5 @@
+# Front
+
+This is a specification for the language "mylang". This exists to unify the gap
+between the interpreter and the compiler to ensure they have the same behavior
+(where implemented).
--- a/pyimpl/.gitignore
+++ b/pyimpl/.gitignore
@ -0,0 +1 @@
+.mypy_cache
--- a/pyimpl/examples/hello.my0
+++ b/pyimpl/examples/hello.my0
@ -0,0 +1,2 @@
+fn main():
+  print "hello, world!"
--- a/pyimpl/mylang/init.py
+++ b/pyimpl/mylang/init.py
@ -0,0 +1,23 @@
+import click
+from pathlib import Path
+
+from mylang.parser import mylang0
+
+
+@click.command()
+@click.argument("path", type=click.Path(exists=True))
+def main(path: Path):
+  print(path)
+  print(locate_standard_library())
+
+  with open(path) as f:
+    contents: str = f.read()
+    mylang0.parse(contents)
+
+
+def locate_standard_library():
+  locations: list[Path] = [Path(__file__).parents[1] / "std" / "std.mypkg"]
+  for location in locations:
+    if location.exists():
+      return location
+  return None
--- a/pyimpl/mylang/parser/combinators.py
+++ b/pyimpl/mylang/parser/combinators.py
@ -0,0 +1,27 @@
+from typing import TypeVar, Generic, Callable, Optional, List, Tuple, Union
+
+Result = TypeVar("Result")
+UserData = TypeVar("UserData")
+T = TypeVar("T")
+U = TypeVar("U")
+
+ParserType = Callable[[str], Union[Tuple[str, T], str]]
+
+
+class Parser(Generic[T, UserData]):
+  run: Callable[[str], T]
+
+  def __init__(self, run: Callable[[str], T]) -> None:
+    self.run = run
+
+  def parse(self, input: str) -> T:
+    return self.run(input)
+
+  def and_then(
+    self, and_then_func: Callable[[T], "Parser[U, UserData]"]
+  ) -> "Parser[U, UserData]":
+    return Parser(lambda input: and_then_func(self.run(input)))
+
+
+def many(parser: Parser[T, UserData]) -> Parser[List[T], UserData]:
+  return 1
--- a/pyimpl/mylang/parser/mylang0.py
+++ b/pyimpl/mylang/parser/mylang0.py
@ -0,0 +1,5 @@
+from mylang.parser.combinators import many
+
+
+def parse(input: str):
+  return input
--- a/pyimpl/poetry.lock
+++ b/pyimpl/poetry.lock
@ -0,0 +1,115 @@
+# This file is automatically @generated by Poetry 1.6.1 and should not be changed by hand.
+
+[[package]]
+name = "click"
+version = "8.1.7"
+description = "Composable command line interface toolkit"
+optional = false
+python-versions = ">=3.7"
+files = [
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+]
+
+[package.dependencies]
+colorama = {version = "*", markers = "platform_system == \"Windows\""}
+
+[[package]]
+name = "colorama"
+version = "0.4.6"
+description = "Cross-platform colored terminal text."
+optional = false
+python-versions = "!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*,!=3.4.*,!=3.5.*,!=3.6.*,>=2.7"
+files = [
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+]
+
+[[package]]
+name = "mypy"
+version = "1.10.0"
+description = "Optional static typing for Python"
+optional = false
+python-versions = ">=3.8"
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+]
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+[package.dependencies]
+mypy-extensions = ">=1.0.0"
+typing-extensions = ">=4.1.0"
+
+[package.extras]
+dmypy = ["psutil (>=4.0)"]
+install-types = ["pip"]
+mypyc = ["setuptools (>=50)"]
+reports = ["lxml"]
+
+[[package]]
+name = "mypy-extensions"
+version = "1.0.0"
+description = "Type system extensions for programs checked with the mypy type checker."
+optional = false
+python-versions = ">=3.5"
+files = [
+    {file = "mypy_extensions-1.0.0-py3-none-any.whl", hash = "sha256:4392f6c0eb8a5668a69e23d168ffa70f0be9ccfd32b5cc2d26a34ae5b844552d"},
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+[[package]]
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+version = "69.5.1"
+description = "Easily download, build, install, upgrade, and uninstall Python packages"
+optional = false
+python-versions = ">=3.8"
+files = [
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+[package.extras]
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+testing = ["build[virtualenv]", "filelock (>=3.4.0)", "importlib-metadata", "ini2toml[lite] (>=0.9)", "jaraco.develop (>=7.21)", "jaraco.envs (>=2.2)", "jaraco.path (>=3.2.0)", "mypy (==1.9)", "packaging (>=23.2)", "pip (>=19.1)", "pytest (>=6,!=8.1.1)", "pytest-checkdocs (>=2.4)", "pytest-cov", "pytest-enabler (>=2.2)", "pytest-home (>=0.5)", "pytest-mypy", "pytest-perf", "pytest-ruff (>=0.2.1)", "pytest-timeout", "pytest-xdist (>=3)", "tomli", "tomli-w (>=1.0.0)", "virtualenv (>=13.0.0)", "wheel"]
+testing-integration = ["build[virtualenv] (>=1.0.3)", "filelock (>=3.4.0)", "jaraco.envs (>=2.2)", "jaraco.path (>=3.2.0)", "packaging (>=23.2)", "pytest", "pytest-enabler", "pytest-xdist", "tomli", "virtualenv (>=13.0.0)", "wheel"]
+
+[[package]]
+name = "typing-extensions"
+version = "4.11.0"
+description = "Backported and Experimental Type Hints for Python 3.8+"
+optional = false
+python-versions = ">=3.8"
+files = [
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+]
+
+[metadata]
+lock-version = "2.0"
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--- a/pyimpl/pyproject.toml
+++ b/pyimpl/pyproject.toml
@ -0,0 +1,31 @@
+[project]
+name = "mylang"
+version = "0.1.0"
+
+[project.scripts]
+mylang = "mylang:main"
+
+[build-system]
+requires = ["setuptools"]
+build-backend = "setuptools.build_meta"
+
+[tool.ruff]
+indent-width = 2
+
+[tool.ruff.format]
+quote-style = "double"
+indent-style = "space"
+
+[tool.poetry]
+name = "mylang"
+version = "0.1.0"
+description = "My Language"
+authors = ["Michael Zhang <mail@mzhang.io>"]
+
+[tool.poetry.dependencies]
+python = "^3.11"
+
+[tool.poetry.group.dev.dependencies]
+mypy = "^1.10.0"
+click = "^8.1.7"
+setuptools = "^69.5.1"
--- a/pyimpl/setup.py
+++ b/pyimpl/setup.py
@ -0,0 +1,6 @@
+from setuptools import setup, find_packages
+
+setup(
+  name="mylang",
+  version="0.1.0",
+)
--- a/pyimpl/std/io/stdio.my0
+++ b/pyimpl/std/io/stdio.my0
--- a/pyimpl/std/std.mypkg
+++ b/pyimpl/std/std.mypkg
--- a/rustfmt.toml
+++ b/rustfmt.toml
@ -0,0 +1 @@
+tab_spaces = 2
--- a/rustimpl/.gitignore
+++ b/rustimpl/.gitignore
@ -0,0 +1 @@
+/target
--- a/rustimpl/Cargo.lock
+++ b/rustimpl/Cargo.lock
@ -0,0 +1,583 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 3
+
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@ -0,0 +1,12 @@
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--- a/rustimpl/build.rs
+++ b/rustimpl/build.rs
@ -0,0 +1,3 @@
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+}
--- a/rustimpl/src/grammar.lalrpop
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@ -0,0 +1,5 @@
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+pub Program = Decl*;
+
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--- a/rustimpl/src/main.rs
+++ b/rustimpl/src/main.rs
@ -0,0 +1,3 @@
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+  println!("Hello, world!");
+}