(FIX) Change encoder::encode_metadata to return a [u8] (which will become an LLVM string)

Author: killerswan

src/comp/metadata/encoder.rs

@@ -662,7 +662,7 @@ fn encode_hash(ebml_w: ebml::writer, hash: str) {
     ebml::end_tag(ebml_w);
 }
 
-fn encode_metadata(cx: @crate_ctxt, crate: @crate) -> str {
+fn encode_metadata(cx: @crate_ctxt, crate: @crate) -> [u8] {
 
     let abbrevs = ty::new_ty_hash();
     let ecx = @{ccx: cx, type_abbrevs: abbrevs};
@@ -695,7 +695,7 @@ fn encode_metadata(cx: @crate_ctxt, crate: @crate) -> str {
     // Pad this, since something (LLVM, presumably) is cutting off the
     // remaining % 4 bytes.
     buf_w.write([0u8, 0u8, 0u8, 0u8]);
-    io::mem_buffer_str(buf)
+    io::mem_buffer_buf(buf)
 }
 
 // Get the encoded string for a type

src/comp/middle/trans.rs

@@ -5419,7 +5419,7 @@ fn fill_crate_map(ccx: @crate_ctxt, map: ValueRef) {
 
 fn write_metadata(cx: @crate_ctxt, crate: @ast::crate) {
     if !cx.sess.building_library { ret; }
-    let llmeta = C_postr(metadata::encoder::encode_metadata(cx, crate));
+    let llmeta = C_bytes(metadata::encoder::encode_metadata(cx, crate));
     let llconst = trans_common::C_struct([llmeta]);
     let llglobal =
         str::as_buf("rust_metadata",