https://github.com/thaliaarchi/kaleidoscope-inkwell
https://github.com/thaliaarchi/kaleidoscope-inkwell
Last synced: 3 months ago
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- Host: GitHub
- URL: https://github.com/thaliaarchi/kaleidoscope-inkwell
- Owner: thaliaarchi
- License: apache-2.0
- Created: 2022-02-10T23:22:36.000Z (over 3 years ago)
- Default Branch: main
- Last Pushed: 2022-03-10T19:19:29.000Z (over 3 years ago)
- Last Synced: 2025-01-25T10:08:44.279Z (5 months ago)
- Language: Rust
- Size: 55.7 KB
- Stars: 0
- Watchers: 1
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE
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README
# Kaleidoscope
This example shows how one can implement the [Kaleidoscope programming language](https://llvm.org/docs/tutorial/index.html) using Inkwell.
It implements every feature up to the [7th chapter](https://llvm.org/docs/tutorial/LangImpl07.html).
When running this example (using the `cargo run` command), a prompt will be displayed; for example:
```
?> 1 + 1
=> 2
?> var a = 5, b = 10 in a * b
=> 50
?> def fib(n) if n < 2 then n else fib(n - 1) + fib(n - 2)
?> fib(40)
=> 102334155
?>
```
Additional arguments can be passed to the produced executable:
- `--dc`: **D**isplay **C**ompiler output
- `--dp`: **D**isplay **P**arser output
- `--dl`: **D**isplay **L**exer output
For example, running with all three switches may lead to the following output:
```
?> 1 + 2 * 2
-> Attempting to parse lexed input:
[Number(1), Op('+'), Number(2), Op('*'), Number(2)]
-> Expression parsed:
Binary { op: '+', left: Number(1), right: Binary { op: '*', left: Number(2), right: Number(2) } }
-> Expression compiled to IR:
define double @anonymous() {
entry:
ret double 5.000000e+00
}
=> 5
```
Finally, the prompt can be exited by entering "exit" or "quit".