feat: implement M1 Ferro frontend

fec/std/core.fe

@@ -0,0 +1,5 @@
+unit core;
+
+pub error Error { Invalid = 1, Io = 2, }
+pub fn panic(msg: str, file: str, line: u32) { }
+pub fn assert(ok: bool) { }

fec/std/fmt.fe

@@ -0,0 +1,4 @@
+unit fmt;
+pub fn write_str(w: &mut io.Writer, s: str) -> !void;
+pub fn write_int_i32(w: &mut io.Writer, v: i32) -> !void;
+pub fn write_bool(w: &mut io.Writer, v: bool) -> !void;

fec/std/io.fe

@@ -0,0 +1,9 @@
+unit io;
+pub struct Writer {
+    ctx: *void,
+    write_fn: fn(*void, []u8) -> !usize,
+}
+pub struct File {
+    handle: u16,
+    pub fn close(self: &mut Self) { }
+}

fec/std/list.fe

@@ -0,0 +1,6 @@
+unit list;
+pub struct List(T) {
+    items: ^[]T,
+    len: usize,
+    pub fn at(self: &Self, i: usize) -> &T;
+}

fec/std/map.fe

@@ -0,0 +1,4 @@
+unit map;
+pub struct Map(K, V) {
+    len: usize,
+}

fec/std/mem.fe

@@ -0,0 +1,11 @@
+unit mem;
+
+pub fn create(T: type) -> !^T;
+pub fn destroy(p: *void);
+pub fn copy(dst: []u8, src: []u8);
+pub struct Arena {
+    ptr: *void,
+    pub fn init() -> Arena { return Arena{ ptr: null }; }
+    pub fn reset(self: &mut Self) { }
+    pub fn drop(self: &mut Self) { }
+}

fec/std/str.fe

@@ -0,0 +1,3 @@
+unit str;
+pub fn eq(a: str, b: str) -> bool;
+pub fn trim(s: str) -> str;

fec/std/sys.fe

@@ -0,0 +1,2 @@
+unit sys;
+pub fn exit(code: u16);