Implement rpc protocol changes

Author: Veykril

Cargo.lock

@@ -24,10 +24,14 @@ indexmap.workspace = true
 paths = { workspace = true, features = ["serde1"] }
 tt.workspace = true
 stdx.workspace = true
+proc-macro-srv = {workspace = true, optional = true}
 # span = {workspace = true, default-features = false} does not work
 span = { path = "../span", version = "0.0.0", default-features = false}
 
 intern.workspace = true
 
+[features]
+sysroot-abi = ["proc-macro-srv", "proc-macro-srv/sysroot-abi"]
+
 [lints]
 workspace = true

crates/proc-macro-api/Cargo.toml

@@ -95,9 +95,10 @@ pub(crate) fn expand(
     let mixed_site = span_data_table.insert_full(mixed_site).0;
     let task = ExpandMacro {
         data: ExpandMacroData {
-            macro_body: FlatTree::new(subtree, version, &mut span_data_table),
+            macro_body: FlatTree::from_subtree(subtree, version, &mut span_data_table),
             macro_name: proc_macro.name.to_string(),
-            attributes: attr.map(|subtree| FlatTree::new(subtree, version, &mut span_data_table)),
+            attributes: attr
+                .map(|subtree| FlatTree::from_subtree(subtree, version, &mut span_data_table)),
             has_global_spans: ExpnGlobals {
                 serialize: version >= version::HAS_GLOBAL_SPANS,
                 def_site,

crates/proc-macro-api/src/legacy_protocol.rs

@@ -297,7 +297,7 @@ mod tests {
             let mut span_data_table = Default::default();
             let task = ExpandMacro {
                 data: ExpandMacroData {
-                    macro_body: FlatTree::new(tt.view(), v, &mut span_data_table),
+                    macro_body: FlatTree::from_subtree(tt.view(), v, &mut span_data_table),
                     macro_name: Default::default(),
                     attributes: None,
                     has_global_spans: ExpnGlobals {