Merge pull request #5 from slothlang/standard-library

Standard Library

1 files changed, 41 insertions, 0 deletions

diff --git a/crates/sloth_vm/src/sloth_std/term.rs b/crates/sloth_vm/src/sloth_std/term.rs
new file mode 100644
index 0000000..f61321c
--- /dev/null
+++ b/crates/sloth_vm/src/sloth_std/term.rs
@@ -0,0 +1,41 @@
+use crate::native::{self, NativeFunction, NativeFunctionResult};
+use crate::value::Primitive;
+use crate::value::Primitive::Integer;
+use crate::VM;
+
+pub const TERM_CLEAR: NativeFunction = NativeFunction {
+    name: "term$clear",
+    function: |_vm, _args| {
+        print!("\x1b[2J\x1b[H");
+        Ok(Primitive::Empty)
+    },
+    arity: 0,
+    returns_value: false,
+    doc: Some(
+        "NativeFunction term$clear: \n\tdesc: Clears the terminal\n\tExample: `term$clear(); # \
+         Clears the terminal`",
+    ),
+};
+
+fn term_setpos(_vm: &mut VM, args: &[Primitive]) -> NativeFunctionResult {
+    let x = args.get(0).cloned();
+    let y = args.get(1).cloned();
+
+    let (Some(Integer(x)), Some(Integer(y))) = (x, y) else {
+        return Err(native::Error::InvalidArgument);
+    };
+    print!("\x1b[{x};{y}H");
+    Ok(Primitive::Empty)
+}
+
+pub const TERM_SETPOS: NativeFunction = NativeFunction {
+    name: "term$setpos",
+    function: term_setpos,
+    arity: 2,
+    returns_value: false,
+    doc: Some(
+        "NativeFunction term$setpos: \n\targs: x (int), y (int)\n\tdesc: Sets the cursors \
+         position to (<x>, <y>)\n\tExample: `term$setpos(5, 17); # Sets the position of the \
+         cursor to (5, 17)`",
+    ),
+};