Use include_bytes! instead of incbin.

This is the second attempt at this patch. The first version was reverted
in 2ffd78daf9956a24098d1f959f21882e350e9d37

The problem, I suspect, was that the snapshot was represented as a
source_set, which inserted a node into the dependency tree.
include_bytes does properly insert the snapshot into rustc's depfile but
the use of source_set confused gn. Now the that the deno executable has
the create_deno_snapshot as a direct dependency, changes will be
propagated.

1 files changed, 16 insertions, 2 deletions

diff --git a/src/snapshot.rs b/src/snapshot.rs
index 52c8df47d..4774ba43f 100644
--- a/src/snapshot.rs
+++ b/src/snapshot.rs
@@ -1,5 +1,19 @@
 // Copyright 2018 the Deno authors. All rights reserved. MIT license.
 use libdeno::deno_buf;
-extern "C" {
-  pub static deno_snapshot: deno_buf;
+use std;
+
+pub fn deno_snapshot() -> deno_buf {
+  let data =
+    include_bytes!(concat!(env!("GN_OUT_DIR"), "/gen/snapshot_deno.bin"));
+  let ptr = data.as_ptr();
+  // TODO The cast is not necessary here. deno_buf specifies mutable
+  // pointers when it doesn't necessarally need mutable. So maybe the deno_buf
+  // type should be broken into a mutable and non-mutable version?
+  let ptr_mut = ptr as *mut u8;
+  deno_buf {
+    alloc_ptr: std::ptr::null_mut(),
+    alloc_len: 0,
+    data_ptr: ptr_mut,
+    data_len: data.len(),
+  }
 }