affine/flesh
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

refmt

Browse source
This commit is contained in:
Aidan Hahn 2022-01-16 22:02:40 -08:00
parent f805290a4b
commit be73b0b828
No known key found for this signature in database
GPG key ID: 327711E983899316
17 changed files with 588 additions and 675 deletions
Download patch file Download diff file Expand all files Collapse all files

86
src/vars.rs
View file

@ -15,13 +15,13 @@
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
use crate::eval::eval;
use crate::func::{Args, FTable, Function, Operation};
use crate::segment::{ast_to_string, Ast, Ctr};
use std::cell::RefCell;
use std::rc::Rc;
use std::collections::HashMap;
use std::env;
use crate::segment::{Ctr, Ast, ast_to_string};
use crate::eval::eval;
use crate::func::{Function, Operation, Args, FTable};
use std::rc::Rc;
/* Mapping between a string token and a tree of Segments
* The string token can be found in any Ctr::Symbol value
* it is expected that the trees stored are already evaluated
@ -29,11 +29,7 @@ use crate::func::{Function, Operation, Args, FTable};
pub type VTable = HashMap<String, Rc<Ctr>>;
// WARNING: make sure var_tree is properly evaluated before storing
pub fn define(
vt: Rc<RefCell<VTable>>,
identifier: String,
var_tree: Rc<Ctr>
) {
pub fn define(vt: Rc<RefCell<VTable>>, identifier: String, var_tree: Rc<Ctr>) {
if let Some(rc_segment) = vt.borrow_mut().insert(identifier, var_tree) {
drop(rc_segment);
}
@ -43,58 +39,58 @@ pub fn get_export(env_cfg: bool) -> Function {
// This is the most hilarious way to work around the lifetime of env_cfg
// TODO: figure out the RUSTEY way of doing this
if env_cfg {
return Function{
return Function {
name: String::from("export"),
loose_syms: true,
eval_lazy: true,
args: Args::Lazy(2),
function: Operation::Internal(Box::new(|a: Ast, b: Rc<RefCell<VTable>>, c: Rc<RefCell<FTable>>| -> Ctr {
export_callback(true, a, b, c)
})),
function: Operation::Internal(Box::new(
|a: Ast, b: Rc<RefCell<VTable>>, c: Rc<RefCell<FTable>>| -> Ctr {
export_callback(true, a, b, c)
},
)),
};
} else {
return Function{
return Function {
name: String::from("export"),
loose_syms: true,
eval_lazy: true,
args: Args::Lazy(2),
function: Operation::Internal(Box::new(|a: Ast, b: Rc<RefCell<VTable>>, c: Rc<RefCell<FTable>>| -> Ctr {
export_callback(false, a, b, c)
})),
function: Operation::Internal(Box::new(
|a: Ast, b: Rc<RefCell<VTable>>, c: Rc<RefCell<FTable>>| -> Ctr {
export_callback(false, a, b, c)
},
)),
};
}
}
fn export_callback(env_cfg: bool, a: Ast, b: Rc<RefCell<VTable>>, c: Rc<RefCell<FTable>>) -> Ctr{
fn export_callback(env_cfg: bool, a: Ast, b: Rc<RefCell<VTable>>, c: Rc<RefCell<FTable>>) -> Ctr {
let inner = a.borrow_mut();
match &inner.car {
Ctr::Symbol(identifier) => {
match &inner.cdr {
Ctr::Seg(tree) => {
match eval(tree.clone(), b.clone(), c.clone(), false) {
Ok(seg) => {
match seg {
Ctr::Seg(val) => {
define(b, identifier.to_string(), Rc::new(val.borrow().clone().car));
if env_cfg {
match val.borrow().clone().car {
Ctr::Symbol(s) => env::set_var(identifier, s),
Ctr::String(s) => env::set_var(identifier, s),
Ctr::Integer(i) => env::set_var(identifier, format!("{}", i)),
Ctr::Float(f) => env::set_var(identifier, format!("{}", f)),
Ctr::Bool(b) => env::set_var(identifier, format!("{}", b)),
Ctr::Seg(c) => env::set_var(identifier, ast_to_string(c)),
Ctr::None => ()
}
}
},
_ => eprintln!("impossible args to export")
Ctr::Seg(tree) => match eval(tree.clone(), b.clone(), c.clone(), false) {
Ok(seg) => match seg {
Ctr::Seg(val) => {
define(b, identifier.to_string(), Rc::new(val.borrow().clone().car));
if env_cfg {
match val.borrow().clone().car {
Ctr::Symbol(s) => env::set_var(identifier, s),
Ctr::String(s) => env::set_var(identifier, s),
Ctr::Integer(i) => env::set_var(identifier, format!("{}", i)),
Ctr::Float(f) => env::set_var(identifier, format!("{}", f)),
Ctr::Bool(b) => env::set_var(identifier, format!("{}", b)),
Ctr::Seg(c) => env::set_var(identifier, ast_to_string(c)),
Ctr::None => (),
}
}
},
}
Err(e) => eprintln!("couldnt eval symbol: {}", e)
}
_ => eprintln!("impossible args to export"),
},
Err(e) => eprintln!("couldnt eval symbol: {}", e),
},
Ctr::None => {
@ -102,13 +98,13 @@ fn export_callback(env_cfg: bool, a: Ast, b: Rc<RefCell<VTable>>, c: Rc<RefCell<
if env_cfg {
// TODO: unset variable
}
},
}
_ => eprintln!("args not in standard form")
_ => eprintln!("args not in standard form"),
}
},
}
_ => eprintln!("first argument to export must be a symbol")
_ => eprintln!("first argument to export must be a symbol"),
}
return Ctr::None;