[ruby/prism] Move common flags to top bits

Moves the common flag bits to the top. This lets us eliminate the `COMMON`
constant, and also allows us to group encoding flags on a nibble so we
can more easily mask them.

https://github.com/ruby/prism/commit/895508659e

2 files changed, 2 insertions, 2 deletions

diff --git a/prism/templates/src/prettyprint.c.erb b/prism/templates/src/prettyprint.c.erb
index 0dd8632616..c5d05485b8 100644
--- a/prism/templates/src/prettyprint.c.erb
+++ b/prism/templates/src/prettyprint.c.erb
@@ -80,7 +80,7 @@ prettyprint_node(pm_buffer_t *buffer, pm_parser_t *parser, pm_node_t *node) {
             pm_buffer_append_str(buffer, <%= field.name %>_buffer, strlen(<%= field.name %>_buffer));
             <%- when Prism::FlagsField -%>
             char <%= field.name %>_buffer[12];
-            snprintf(<%= field.name %>_buffer, sizeof(<%= field.name %>_buffer), "+%d", node->flags >> <%= Prism::COMMON_FLAGS %>);
+            snprintf(<%= field.name %>_buffer, sizeof(<%= field.name %>_buffer), "+%d", (uint32_t)(node->flags & ~PM_NODE_FLAG_COMMON_MASK));
             pm_buffer_append_str(buffer, <%= field.name %>_buffer, strlen(<%= field.name %>_buffer));
             <%- else -%>
             <%- raise -%>
diff --git a/prism/templates/src/serialize.c.erb b/prism/templates/src/serialize.c.erb
index cc2d4db7a0..e9ebc31590 100644
--- a/prism/templates/src/serialize.c.erb
+++ b/prism/templates/src/serialize.c.erb
@@ -110,7 +110,7 @@ pm_serialize_node(pm_parser_t *parser, pm_node_t *node, pm_buffer_t *buffer) {
             <%- when Prism::UInt32Field -%>
             pm_buffer_append_u32(buffer, ((pm_<%= node.human %>_t *)node)-><%= field.name %>);
             <%- when Prism::FlagsField -%>
-            pm_buffer_append_u32(buffer, node->flags >> <%= Prism::COMMON_FLAGS %>);
+            pm_buffer_append_u32(buffer, (uint32_t)(node->flags & ~PM_NODE_FLAG_COMMON_MASK));
             <%- else -%>
             <%- raise -%>
             <%- end -%>