Terminal and file stuff

1 files changed, 73 insertions, 0 deletions

diff --git a/crates/sloth_vm/src/sloth_std/file.rs b/crates/sloth_vm/src/sloth_std/file.rs
new file mode 100644
index 0000000..b6c8adf
--- /dev/null
+++ b/crates/sloth_vm/src/sloth_std/file.rs
@@ -0,0 +1,73 @@
+use std::fs;
+
+use crate::native::{self, NativeFunction, NativeFunctionResult};
+use crate::value::{Object, ObjectType, Primitive};
+use crate::VM;
+
+fn file_read(vm: &mut VM, args: &[Primitive]) -> NativeFunctionResult {
+    let Some(Primitive::Object(ptr)) = args.get(0).cloned() else {
+        return Err(native::Error::InvalidArgument);
+    };
+
+    let object = vm
+        .objects()
+        .get(ptr as usize)
+        .ok_or(native::Error::InvalidArgument)?;
+
+    let ObjectType::String(str) = &object.typ else {
+        return Err(native::Error::InvalidArgument);
+    };
+
+    let contents = fs::read_to_string(str).expect("IO Error: Failed to read file!");
+
+    let object = Object::new(ObjectType::String(contents));
+    let ptr = vm.objects_mut().allocate(object);
+
+    Ok(Primitive::Object(ptr as u32))
+}
+
+pub const FILE_READ: NativeFunction = NativeFunction {
+    name: "file$read",
+    function: file_read,
+    arity: 1,
+    returns_value: true,
+};
+
+fn file_write(vm: &mut VM, args: &[Primitive]) -> NativeFunctionResult {
+    let Some(Primitive::Object(path_ptr)) = args.get(0).cloned() else {
+        return Err(native::Error::InvalidArgument);
+    };
+
+    let path_object = vm
+        .objects()
+        .get(path_ptr as usize)
+        .ok_or(native::Error::InvalidArgument)?;
+
+    let ObjectType::String(path) = &path_object.typ else {
+        return Err(native::Error::InvalidArgument);
+    };
+
+    let Some(Primitive::Object(content_ptr)) = args.get(1).cloned() else {
+        return Err(native::Error::InvalidArgument);
+    };
+
+    let content_object = vm
+        .objects()
+        .get(content_ptr as usize)
+        .ok_or(native::Error::InvalidArgument)?;
+
+    let ObjectType::String(content) = &content_object.typ else {
+        return Err(native::Error::InvalidArgument);
+    };
+
+    let _ = fs::write(path, content);
+
+    Ok(Primitive::Empty)
+}
+
+pub const FILE_WRITE: NativeFunction = NativeFunction {
+    name: "file$write",
+    function: file_write,
+    arity: 2,
+    returns_value: false,
+};