...

examples/build.sh

@@ -1,7 +1,7 @@
 set -e
 
 pushd core
-dotnet run --project ../../compiler print.nub --type=lib
+dotnet run --project ../../compiler sys.nub print.nub file.nub --type=lib
 popd
 
 pushd program

examples/core/file.nub

@@ -0,0 +1,24 @@
+module file
+
+export func read_text(path: string): ^u8 {
+    let fd = sys::open(path.ptr 0 0o644)
+    if fd < 0 {
+        return ^u8(0) // failed to open
+    }
+
+    let buf_size: u64 = 4096
+    let buf = c::malloc(buf_size) as ^u8
+    if buf == ^u8(0) {
+        return ^u8(0)
+    }
+
+    let bytes_read = sys::read(fd, buf, buf_size)
+    if bytes_read < 0 {
+        c::free(buf)
+        return ^u8(0)
+    }
+
+    buf[bytes_read] = 0
+
+    return buf
+}

examples/core/print.nub

@@ -1,7 +1,10 @@
 module core
 
-extern func puts(text: ^u8)
-
 export func print(text: string) {
-    puts(text.ptr)
+    sys::write(0 text.ptr text.length)
+}
+
+export func println(text: string) {
+    print(text)
+    print("\n")
 }

examples/core/sys.nub

@@ -0,0 +1,5 @@
+module sys
+
+export extern func read(fd: u32 buf: ^u8 count: u64): i64
+export extern func write(fd: u32 buf: ^u8 count: u64): i64
+export extern func open(fileName: ^u8 flags: i32 mode: u16): i64

examples/program/main.nub

@@ -2,24 +2,11 @@ module main
 
 extern func puts(text: ^u8)
 
-export func print(text: string) {
-    puts(text.ptr)
-}
-
-enum Message {
-    Tell: string
-}
-
 func main(): i32 {
-    let x = "test"
+    core::println("Hello, world!")
 
-    let y = {
-        abc = x
-    }
-
-    let a: Message = enum Message::Tell x
-
-    core::print(x)
+    let file = file::read_text("file.nub")
+    puts(file)
 
     return 0
 }