JIT precompilated snapshots.

runtime/include/dart_api.h

Index: runtime/include/dart_api.h
diff --git a/runtime/include/dart_api.h b/runtime/include/dart_api.h
index 58356604076879edb68df4650e0e929e14d6660f..773f93b6cd1e23629dd21be538f6a5cc626cdd65 100755
--- a/runtime/include/dart_api.h
+++ b/runtime/include/dart_api.h
@@ -2977,6 +2977,20 @@ DART_EXPORT Dart_Handle Dart_CreatePrecompiledSnapshotBlob(
     intptr_t* rodata_blob_size);
 
 
+DART_EXPORT Dart_Handle Dart_PrecompileJIT();

[Florian Schneider, 2016/05/03 09:20:35]

When would you use this function without Dart_CreatePrecompiledJITSnapshotBlob?

Would one API function (Dart_CreatePrecompiledJITSnapshot) that does both be
enough?

[rmacnak, 2016/05/03 19:54:20]

I expect we'll get to a place with something like

host:
   Dart_PrecompileJIT()  "more conservative tree-shake"
   Dart_CreateSnapshot();
target:
   first launch
   Dart_Initialize(snapshot without code)
   end of first frame
   Dart_CreatePrecompiledJITSnapshot()
   second launch
   Dart_Initialize(snapshot with the code for needed for startup)

+
+
+DART_EXPORT Dart_Handle Dart_CreatePrecompiledJITSnapshotBlob(
+    uint8_t** vm_isolate_snapshot_buffer,
+    intptr_t* vm_isolate_snapshot_size,
+    uint8_t** isolate_snapshot_buffer,
+    intptr_t* isolate_snapshot_size,
+    uint8_t** instructions_blob_buffer,
+    intptr_t* instructions_blob_size,
+    uint8_t** rodata_blob_buffer,
+    intptr_t* rodata_blob_size);
+
+
 DART_EXPORT bool Dart_IsRunningPrecompiledCode();
 
 #endif  /* INCLUDE_DART_API_H_ */  /* NOLINT */