1 files changed, 52 insertions, 0 deletions
diff --git a/build_extra/deno.gni b/build_extra/deno.gni
new file mode 100644
index 000000000..a8804e9f9
--- /dev/null
+++ b/build_extra/deno.gni
@@ -0,0 +1,52 @@
+template("run_node") {
+  action(target_name) {
+    forward_variables_from(invoker, "*")
+    script = "//js/run_node.py"
+  }
+}
+
+# Template to generate different V8 snapshots based on different runtime flags.
+# Can be invoked with run_mksnapshot(<name>). The target will resolve to
+# run_mksnapshot_<name>. If <name> is "default", no file suffixes will be used.
+# Otherwise files are suffixed, e.g. embedded_<name>.cc and
+# snapshot_blob_<name>.bin.
+#
+# The template exposes the variables:
+#   args: additional flags for mksnapshots
+#   embedded_suffix: a camel case suffix for method names in the embedded
+#       snapshot.
+template("create_snapshot") {
+  name = target_name
+  suffix = "_$name"
+  action("create_snapshot_" + name) {
+    forward_variables_from(invoker,
+                           [
+                             "testonly",
+                             "deps",
+                           ])
+    visibility = [ ":*" ]  # Only targets in this file can depend on this.
+    deps += [ ":snapshot_creator" ]
+    script = "//third_party/v8/tools/run.py"
+    data = []
+    exe = rebase_path(get_label_info(":snapshot_creator", "root_out_dir") +
+                      "/snapshot_creator")
+    snapshot_out_cc = "$target_gen_dir/snapshot${suffix}.cc"
+    sources = [
+      invoker.js,
+    ]
+    outputs = [
+      snapshot_out_cc,
+    ]
+    args = [
+      exe,
+      rebase_path(invoker.js, root_build_dir),
+      rebase_path(snapshot_out_cc, root_build_dir),
+    ]
+
+    # To debug snapshotting problems:
+    #  args += ["--trace-serializer"]
+    data = [
+      invoker.js,
+    ]
+  }
+}