diff options
| -rw-r--r-- | compiler/rustc_query_system/src/dep_graph/serialized.rs | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/compiler/rustc_query_system/src/dep_graph/serialized.rs b/compiler/rustc_query_system/src/dep_graph/serialized.rs index 0d4913e798d..d2bcde14383 100644 --- a/compiler/rustc_query_system/src/dep_graph/serialized.rs +++ b/compiler/rustc_query_system/src/dep_graph/serialized.rs @@ -225,7 +225,11 @@ impl SerializedDepGraph { let index = node_header.index(); - nodes[index] = node_header.node(); + let node = &mut nodes[index]; + // Make sure there's no duplicate indices in the dep graph. + assert!(node_header.node().kind != D::DEP_KIND_NULL && node.kind == D::DEP_KIND_NULL); + *node = node_header.node(); + fingerprints[index] = node_header.fingerprint(); // If the length of this node's edge list is small, the length is stored in the header. |