Skip to content

🧹 Extract standard library Sys registry closures into functions #224

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
github-actions merged 1 commit into from
Oct 6, 2026
Merged

🧹 Extract standard library Sys registry closures into functions #224

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
153 changes: 81 additions & 72 deletions stdlib/src/sys.rs
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -1,14 +1,87 @@
use crate::{StdFunction, StdlibModule, StdlibRegistry};
use indexmap::IndexMap;
use std::cell::RefCell;
use std::collections::HashMap;
use std::rc::Rc;
use techscript_runtime::{
context::Capability,
context::{Capability, RuntimeContext},
error::{RuntimeError, RuntimeErrorKind},
value::RuntimeValue,
};

fn check_fs_capability(ctx: &RuntimeContext) -> Result<(), RuntimeError> {
if !ctx.config.capabilities.contains(&Capability::FileSystem) {
return Err(RuntimeError::new(
RuntimeErrorKind::InvalidOperation(
"Security policy violation: FileSystem capability is denied".to_string(),
),
None,
None,
));
}
Ok(())
}

fn sys_read_file(
ctx: &mut RuntimeContext,
args: Vec<RuntimeValue>,
) -> Result<RuntimeValue, RuntimeError> {
check_fs_capability(ctx)?;
let path = args[0].try_into_string()?;
let content = std::fs::read_to_string(path).map_err(|e| {
RuntimeError::new(
RuntimeErrorKind::InvalidOperation(format!("IO error: {}", e)),
None,
None,
)
})?;
Ok(RuntimeValue::Str(content))
}

fn sys_write_file(
ctx: &mut RuntimeContext,
args: Vec<RuntimeValue>,
) -> Result<RuntimeValue, RuntimeError> {
check_fs_capability(ctx)?;
let path = args[0].try_into_string()?;
let content = args[1].try_into_string()?;
std::fs::write(path, content).map_err(|e| {
RuntimeError::new(
RuntimeErrorKind::InvalidOperation(format!("IO error: {}", e)),
None,
None,
)
})?;
Ok(RuntimeValue::Null)
}

fn sys_exists(
ctx: &mut RuntimeContext,
args: Vec<RuntimeValue>,
) -> Result<RuntimeValue, RuntimeError> {
check_fs_capability(ctx)?;
let path = args[0].try_into_string()?;
Ok(RuntimeValue::Bool(std::path::Path::new(&path).exists()))
}

fn sys_now(
_ctx: &mut RuntimeContext,
_args: Vec<RuntimeValue>,
) -> Result<RuntimeValue, RuntimeError> {
let start = std::time::SystemTime::now();
let since_the_epoch = start
.duration_since(std::time::UNIX_EPOCH)
.unwrap_or_default();
Ok(RuntimeValue::Float(since_the_epoch.as_secs_f64()))
}

fn sys_sleep(
_ctx: &mut RuntimeContext,
args: Vec<RuntimeValue>,
) -> Result<RuntimeValue, RuntimeError> {
let ms = args[0].try_into_int()?;
std::thread::sleep(std::time::Duration::from_millis(ms as u64));
Ok(RuntimeValue::Null)
}

impl StdlibRegistry {
pub fn register_sys(&mut self) {
let mut exports: HashMap<String, Rc<dyn techscript_runtime::function::Callable>> =
Expand All @@ -19,27 +92,7 @@ impl StdlibRegistry {
Rc::new(StdFunction {
name: "read_file".to_string(),
arity: 1,
callback: |ctx, args| {
if !ctx.config.capabilities.contains(&Capability::FileSystem) {
return Err(RuntimeError::new(
RuntimeErrorKind::InvalidOperation(
"Security policy violation: FileSystem capability is denied"
.to_string(),
),
None,
None,
));
}
let path = args[0].try_into_string()?;
let content = std::fs::read_to_string(path).map_err(|e| {
RuntimeError::new(
RuntimeErrorKind::InvalidOperation(format!("IO error: {}", e)),
None,
None,
)
})?;
Ok(RuntimeValue::Str(content))
},
callback: sys_read_file,
}),
);

Expand All @@ -48,28 +101,7 @@ impl StdlibRegistry {
Rc::new(StdFunction {
name: "write_file".to_string(),
arity: 2,
callback: |ctx, args| {
if !ctx.config.capabilities.contains(&Capability::FileSystem) {
return Err(RuntimeError::new(
RuntimeErrorKind::InvalidOperation(
"Security policy violation: FileSystem capability is denied"
.to_string(),
),
None,
None,
));
}
let path = args[0].try_into_string()?;
let content = args[1].try_into_string()?;
std::fs::write(path, content).map_err(|e| {
RuntimeError::new(
RuntimeErrorKind::InvalidOperation(format!("IO error: {}", e)),
None,
None,
)
})?;
Ok(RuntimeValue::Null)
},
callback: sys_write_file,
}),
);

Expand All @@ -78,20 +110,7 @@ impl StdlibRegistry {
Rc::new(StdFunction {
name: "exists".to_string(),
arity: 1,
callback: |ctx, args| {
if !ctx.config.capabilities.contains(&Capability::FileSystem) {
return Err(RuntimeError::new(
RuntimeErrorKind::InvalidOperation(
"Security policy violation: FileSystem capability is denied"
.to_string(),
),
None,
None,
));
}
let path = args[0].try_into_string()?;
Ok(RuntimeValue::Bool(std::path::Path::new(&path).exists()))
},
callback: sys_exists,
}),
);

Expand All @@ -112,13 +131,7 @@ impl StdlibRegistry {
Rc::new(StdFunction {
name: "now".to_string(),
arity: 0,
callback: |_ctx, _args| {
let start = std::time::SystemTime::now();
let since_the_epoch = start
.duration_since(std::time::UNIX_EPOCH)
.unwrap_or_default();
Ok(RuntimeValue::Float(since_the_epoch.as_secs_f64()))
},
callback: sys_now,
}),
);

Expand All @@ -127,11 +140,7 @@ impl StdlibRegistry {
Rc::new(StdFunction {
name: "sleep".to_string(),
arity: 1,
callback: |_ctx, args| {
let ms = args[0].try_into_int()?;
std::thread::sleep(std::time::Duration::from_millis(ms as u64));
Ok(RuntimeValue::Null)
},
callback: sys_sleep,
}),
);

Expand Down
Loading
Loading