diff --git a/stdlib.slg b/stdlib.slg
index 3cfd038..c3e922f 100644
--- a/stdlib.slg
+++ b/stdlib.slg
@@ -1,33 +1,54 @@
 
 // stdlib.slg
 
-fn exit(status_code: int) #[builtin(Exit)] {}
+#[builtin(Exit)]
+fn exit(status_code: int) {}
 
-fn print(msg: string) #[builtin(Print)] {}
-fn println(msg: string) { print(msg + "\n") }
+#[builtin(Print)]
+fn print(msg: string) {}
+msg + "\n"
+fn println(msg: string) { print) }
 
-fn int_to_string(number: int) -> string #[builtin(IntToString)] {}
+#[builtin(IntToString)]
+fn int_to_string(number: int) -> string {}
 
-fn string_push_char(str: string, value: int) -> string #[builtin(StringPushChar)] {}
-fn string_char_at(str: string, index: int) -> int #[builtin(StringCharAt)] {}
-fn string_length(str: string) -> int #[builtin(StringLength)] {}
-fn string_to_int(str: string) -> int #[builtin(StringToInt)] {}
+#[builtin(StringPushChar)]
+fn string_push_char(str: string, value: int) -> string {}
+#[builtin(StringCharAt)]
+fn string_char_at(str: string, index: int) -> int {}
+#[builtin(StringLength)]
+fn string_length(str: string) -> int {}
+#[builtin(StringToInt)]
+fn string_to_int(str: string) -> int {}
 
-fn array_new<T>() -> [T] #[builtin(ArrayNew)] {}
-fn array_push<T>(array: [T], value: T) #[builtin(ArrayPush)] {}
-fn array_length<T>(array: [T]) -> int #[builtin(ArrayLength)] {}
-fn array_at<T>(array: [T], index: int) -> T #[builtin(ArrayAt)] {}
+#[builtin(ArrayNew)]
+fn array_new<T>() -> [T] {}
+#[builtin(ArrayPush)]
+fn array_push<T>(array: [T], value: T) {}
+#[builtin(ArrayLength)]
+fn array_length<T>(array: [T]) -> int {}
+#[builtin(ArrayAt)]
+fn array_at<T>(array: [T], index: int) -> T {}
 
-fn file_open(filename: string, mode: string) -> int #[builtin(FileOpen)] {}
-fn file_close(file: int) #[builtin(FileClose)] {}
-fn file_write_string(file: int, content: string) -> int #[builtin(FileWriteString)] {}
-fn file_read_char(file: int) -> int #[builtin(FileReadChar)] {}
-fn file_read_to_string(file: int) -> string #[builtin(FileReadToString)] {}
-fn file_flush(file: int) #[builtin(FileFlush)] {}
-fn file_eof(file: int) -> bool #[builtin(FileEof)] {}
+#[builtin(FileOpen)]
+fn file_open(filename: string, mode: string) -> int {}
+#[builtin(FileClose)]
+fn file_close(file: int) {}
+#[builtin(FileWriteString)]
+fn file_write_string(file: int, content: string) -> int {}
+#[builtin(FileReadChar)]
+fn file_read_char(file: int) -> int {}
+#[builtin(FileReadToString)]
+fn file_read_to_string(file: int) -> string {}
+#[builtin(FileFlush)]
+fn file_flush(file: int) {}
+#[builtin(FileEof)]
+fn file_eof(file: int) -> bool {}
 
-fn itos(number: int) -> string #[builtin(IntToString)] {}
-fn stoi(str: string) -> int #[builtin(StringToInt)] {}
+#[builtin(IntToString)]
+fn itos(number: int) -> string {}
+#[builtin(StringToInt)]
+fn stoi(str: string) -> int {}
 
 fn stdin() -> int { 0 }
 fn stdout() -> int { 1 }