Add initial Rust project setup

.envrc

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+use flake

.github/workflows/ci.yml

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+---
+name: Rust CI
+
+on: [push, pull_request]
+
+env:
+  CARGO_TERM_COLOR: always
+
+jobs:
+  check:
+    name: Check
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions-rs/toolchain@v1
+        with:
+          profile: minimal
+          toolchain: stable
+          override: true
+      - uses: Swatinem/rust-cache@v2
+      - uses: actions-rs/cargo@v1
+        with:
+          command: check
+          args: --tests --benches
+
+  test:
+    name: Test Suite
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions-rs/toolchain@v1
+        with:
+          profile: minimal
+          toolchain: stable
+          override: true
+      - uses: Swatinem/rust-cache@v2
+      - uses: actions-rs/cargo@v1
+        with:
+          command: test
+
+  fmt:
+    name: Rustfmt
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions-rs/toolchain@v1
+        with:
+          profile: minimal
+          toolchain: stable
+          override: true
+      - run: rustup component add rustfmt
+      - uses: Swatinem/rust-cache@v2
+      - uses: actions-rs/cargo@v1
+        with:
+          command: fmt
+          args: --all -- --check
+
+  clippy:
+    name: Clippy
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions-rs/toolchain@v1
+        with:
+          profile: minimal
+          toolchain: stable
+          override: true
+      - run: rustup component add clippy
+      - uses: Swatinem/rust-cache@v2
+      - uses: actions-rs/cargo@v1
+        with:
+          command: clippy
+          args: --tests --benches -- -D warnings

.github/workflows/lint.yml

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+---
+name: Lint Code Base
+
+on: [push, pull_request]
+
+jobs:
+  build:
+    name: Lint Code Base
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout Code
+        uses: actions/checkout@v3
+        with:
+          fetch-depth: 0
+
+      - name: Lint Code Base
+        uses: github/super-linter/slim@v4
+        env:
+          VALIDATE_ALL_CODEBASE: false
+          DEFAULT_BRANCH: master
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

.gitignore

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+# Rust
+target
+# direnv
+.direnv

Cargo.toml

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+[workspace]
+
+members = [
+    "syntax",
+    "parser",
+    "core",
+    "app",
+]

app/Cargo.toml

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+[package]
+name = "app"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]
+# cli
+clap = { version = "3", features = ["derive"] }
+reedline = "0.10"
+# workspace members
+core = { path = "../core" }
+syntax = { path = "../syntax" }
+parser = { path = "../parser" }

app/src/main.rs

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+fn main() {}

core/Cargo.toml

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+[package]
+name = "core"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]
+# workspace members
+syntax = { path = "../syntax" }
+parser = { path = "../parser" }

core/src/lib.rs

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+

flake.lock

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+{
+  "nodes": {
+    "flake-utils": {
+      "locked": {
+        "lastModified": 1659877975,
+        "narHash": "sha256-zllb8aq3YO3h8B/U0/J1WBgAL8EX5yWf5pMj3G0NAmc=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "c0e246b9b83f637f4681389ecabcb2681b4f3af0",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
+    "naersk": {
+      "inputs": {
+        "nixpkgs": "nixpkgs"
+      },
+      "locked": {
+        "lastModified": 1659610603,
+        "narHash": "sha256-LYgASYSPYo7O71WfeUOaEUzYfzuXm8c8eavJcel+pfI=",
+        "owner": "nix-community",
+        "repo": "naersk",
+        "rev": "c6a45e4277fa58abd524681466d3450f896dc094",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-community",
+        "repo": "naersk",
+        "type": "github"
+      }
+    },
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1661239106,
+        "narHash": "sha256-C5OCLnrv2c4CHs9DMEtYKkjJmGL7ySAZ1PqPkHBonxQ=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "963d27a0767422be9b8686a8493dcade6acee992",
+        "type": "github"
+      },
+      "original": {
+        "id": "nixpkgs",
+        "type": "indirect"
+      }
+    },
+    "nixpkgs_2": {
+      "locked": {
+        "lastModified": 1661239106,
+        "narHash": "sha256-C5OCLnrv2c4CHs9DMEtYKkjJmGL7ySAZ1PqPkHBonxQ=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "963d27a0767422be9b8686a8493dcade6acee992",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixpkgs-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "flake-utils": "flake-utils",
+        "naersk": "naersk",
+        "nixpkgs": "nixpkgs_2"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}

flake.nix

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+{
+  inputs = {
+    flake-utils.url = "github:numtide/flake-utils";
+    naersk.url = "github:nix-community/naersk";
+    nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";
+  };
+
+  outputs = { self, flake-utils, naersk, nixpkgs }:
+    flake-utils.lib.eachDefaultSystem (system:
+      let
+        pkgs = (import nixpkgs) {
+          inherit system;
+        };
+
+        naersk' = pkgs.callPackage naersk {};
+
+      in rec {
+        # For `nix build` & `nix run`:
+        defaultPackage = naersk'.buildPackage {
+          src = ./.;
+        };
+
+        # For `nix develop`:
+        devShell = pkgs.mkShell {
+          nativeBuildInputs = with pkgs; [ rustc cargo rustfmt clippy ];
+          LIBCLANG_PATH = "${pkgs.llvmPackages.libclang.lib}/lib";
+          RUST_SRC_PATH = "${pkgs.rust.packages.stable.rustPlatform.rustLibSrc}";
+        };
+      }
+    );
+}

parser/Cargo.toml

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+[package]
+name = "parser"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]
+lalrpop = "0.19"
+lalrpop-util = "0.19"
+# workspace members
+syntax = { path = "../syntax" }
+
+[build-dependencies.lalrpop]
+version = "0.19"
+features = ["lexer"]

parser/build.rs

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+fn main() {
+    lalrpop::process_root().unwrap();
+}

parser/src/lib.rs

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+

rustfmt.toml

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+use_small_heuristics = "Max"

scripts/git-hooks/pre-commit

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+# Pre-commit hook
+# Place into `.git/hooks` or use `git config core.hooksPath scripts/git-hooks`
+# from the root of the repository
+
+cargo test
+cargo clippy --tests --benches -- -Dwarnings
+cargo fmt -- --check

syntax/Cargo.toml

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+[package]
+name = "syntax"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]
+# serde
+serde = { version = "1", features = ["rc"], optional = true }
+serde_derive = { version = "1", optional = true }
+
+[features]
+default = ["use-serde"]
+use-serde = ["serde", "serde_derive"]

syntax/src/lib.rs

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+