adjust auto_serialize to generate fns named serialize_T()

We used to generate a module T with a serialize() and deserialize() fn,
but this was suboptimal for a number of reasons:

- it required moving serialization into core so that uint etc worked
- it was harder to override the serialization behavior locally
  (this is now trivial)

src/libstd/serialization.rs

@@ -1,12 +1,122 @@
-#[doc = "Support code for serialization.
-
-Deprecated in favor of core::serialization."];
+#[doc = "Support code for serialization."];
 
 use core;
-import list::list;
-import ebml::writer;
 
-import core::serialization::{serializer,deserializer};
+/*
+Core serialization interfaces.
+*/
 
-export serializer;
-export deserializer;
+iface serializer {
+    // Primitive types:
+    fn emit_nil();
+    fn emit_uint(v: uint);
+    fn emit_u64(v: u64);
+    fn emit_u32(v: u32);
+    fn emit_u16(v: u16);
+    fn emit_u8(v: u8);
+    fn emit_int(v: int);
+    fn emit_i64(v: i64);
+    fn emit_i32(v: i32);
+    fn emit_i16(v: i16);
+    fn emit_i8(v: i8);
+    fn emit_bool(v: bool);
+    fn emit_float(v: float);
+    fn emit_f64(v: f64);
+    fn emit_f32(v: f32);
+    fn emit_str(v: str);
+
+    // Compound types:
+    fn emit_enum(name: str, f: fn());
+    fn emit_enum_variant(v_name: str, v_id: uint, sz: uint, f: fn());
+    fn emit_enum_variant_arg(idx: uint, f: fn());
+    fn emit_vec(len: uint, f: fn());
+    fn emit_vec_elt(idx: uint, f: fn());
+    fn emit_box(f: fn());
+    fn emit_uniq(f: fn());
+    fn emit_rec(f: fn());
+    fn emit_rec_field(f_name: str, f_idx: uint, f: fn());
+    fn emit_tup(sz: uint, f: fn());
+    fn emit_tup_elt(idx: uint, f: fn());
+}
+
+iface deserializer {
+    // Primitive types:
+    fn read_nil() -> ();
+
+    fn read_uint() -> uint;
+    fn read_u64() -> u64;
+    fn read_u32() -> u32;
+    fn read_u16() -> u16;
+    fn read_u8() -> u8;
+
+    fn read_int() -> int;
+    fn read_i64() -> i64;
+    fn read_i32() -> i32;
+    fn read_i16() -> i16;
+    fn read_i8() -> i8;
+
+
+    fn read_bool() -> bool;
+
+    fn read_str() -> str;
+
+    fn read_f64() -> f64;
+    fn read_f32() -> f32;
+    fn read_float() -> float;
+
+    // Compound types:
+    fn read_enum<T:copy>(name: str, f: fn() -> T) -> T;
+    fn read_enum_variant<T:copy>(f: fn(uint) -> T) -> T;
+    fn read_enum_variant_arg<T:copy>(idx: uint, f: fn() -> T) -> T;
+    fn read_vec<T:copy>(f: fn(uint) -> T) -> T;
+    fn read_vec_elt<T:copy>(idx: uint, f: fn() -> T) -> T;
+    fn read_box<T:copy>(f: fn() -> T) -> T;
+    fn read_uniq<T:copy>(f: fn() -> T) -> T;
+    fn read_rec<T:copy>(f: fn() -> T) -> T;
+    fn read_rec_field<T:copy>(f_name: str, f_idx: uint, f: fn() -> T) -> T;
+    fn read_tup<T:copy>(sz: uint, f: fn() -> T) -> T;
+    fn read_tup_elt<T:copy>(idx: uint, f: fn() -> T) -> T;
+}
+
+// ___________________________________________________________________________
+// Helper routines
+//
+// In some cases, these should eventually be coded as traits.
+
+fn emit_from_vec<S: serializer, T>(s: S, v: [T], f: fn(T)) {
+    s.emit_vec(vec::len(v)) {||
+        vec::iteri(v) {|i,e|
+            s.emit_vec_elt(i) {||
+                f(e)
+            }
+        }
+    }
+}
+
+fn read_to_vec<D: deserializer, T>(d: D, f: fn() -> T) -> [T] {
+    d.read_vec {|len|
+        vec::from_fn(len) {|i|
+            d.read_vec_elt(i) {|| f() }
+        }
+    }
+}
+
+impl serializer_helpers<S: serializer> for S {
+    fn emit_from_vec<T>(v: [T], f: fn(T)) {
+        emit_from_vec(self, v, f)
+    }
+}
+
+impl deserializer_helpers<D: deserializer> for D {
+    fn read_to_vec<T>(f: fn() -> T) -> [T] {
+        read_to_vec(self, f)
+    }
+}
+
+fn serialize_uint<S: serializer>(s: S, v: uint) {
+    s.emit_uint(v);
+}
+
+fn deserialize_uint<D: deserializer>(d: D) -> uint {
+    d.read_uint()
+}