thp-lang.org/md/learn/index.md
2023-06-30 20:00:17 -05:00

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# Welcome
Welcome to the documentation of the THP programming languague.
THP is a new programming language that compiles to PHP.
## Goals
- Bring static typing to PHP: Not just type hints, not use `mixed` for everything
that isn't a primitive type.
- Avoid automatic type conversion.
- Remove the inconsistencies in the language.
- Organize the stdlib.
- Differentiate between Arrays, Tuples, Maps and Sets.
- Create a **consistent** language.
- Create typings for popular libraries (like TS's `.d.ts`).
- Have a simple instalation and configuration (requiring just Composer).
- Ship a fast, native binary (not written in PHP).
- Sub 10ms watch mode.
- Support in-place compilation.
- Emit readable PHP code (but not meant to be edited).
- Implement a LSP server.
## Not goals
These are **not** aspects that THP looks to solve or implement.
- Be what TypeScript is for JavaScript.
- Use PHP syntax/conventions.
-
## Philosophy
## Compared to PHP
### Differences
### Runtime similarities
## Improvements
```misti
use PDO
use Globals::Env
val (Some(dbUri) Some(dbUser) Some(dbPassword)) = (
Env::get("DB_URI")
Env::get("DB_USERNAME")
Env::get("DB_PASSWORD")
)
else {
die("All 3 db environment variables must be set.")
}
match PDO(dbUri dbUser dbPassword) {
Ok(connection) -> { /* db operations */ }
Err(pdoException) -> { /* handle exception */ }
}
```