From 9061547538ee493a3640b4962589a5c573dbf8d5 Mon Sep 17 00:00:00 2001
From: Yingchi Long <i@lyc.dev>
Date: Sun, 17 Sep 2023 14:57:55 +0800
Subject: [PATCH] nixd/Syntax: actions for attrpath & attrs

---
 nixd/include/nixd/Syntax/Nodes.inc |  3 ++-
 nixd/lib/Syntax/Parser/Parser.y    | 40 ++++++++++++++++++++++++------
 2 files changed, 35 insertions(+), 8 deletions(-)

diff --git a/nixd/include/nixd/Syntax/Nodes.inc b/nixd/include/nixd/Syntax/Nodes.inc
index 040f3d670..3e3a0cb9a 100644
--- a/nixd/include/nixd/Syntax/Nodes.inc
+++ b/nixd/include/nixd/Syntax/Nodes.inc
@@ -50,7 +50,8 @@ NODE(Call, {
   Node *Fn;
   std::vector<Node *> Args;
 })
-NODE(AttrPath, {})
+NODE(AttrPath, { std::vector<Node *> Names; })
+NODE(Attrs, { std::vector<Node *> Names; })
 NODE(Select, {
   Node *Body;
 
diff --git a/nixd/lib/Syntax/Parser/Parser.y b/nixd/lib/Syntax/Parser/Parser.y
index 5e8dd20c9..a99dd867f 100644
--- a/nixd/lib/Syntax/Parser/Parser.y
+++ b/nixd/lib/Syntax/Parser/Parser.y
@@ -32,6 +32,7 @@
     nixd::syntax::IndStringParts *IndStringParts;
     nixd::syntax::SPath *SPath;
     nixd::syntax::URI *Uri;
+    nixd::syntax::Attrs *Attrs;
 
     // Tokens
     nixd::syntax::StringToken STR;
@@ -55,6 +56,7 @@
 %type <Formal> formal
 %type <Binds> binds
 %type <AttrPath> attrpath
+%type <Attrs> attrs
 %type <Call> expr_app
 %type <Node> path_start
 %type <SPath> spath
@@ -381,16 +383,40 @@ binds
 
 
 attrs
-  : attrs attr
-  | attrs string_attr
-  |
+  : attrs attr {
+    $$->Names.emplace_back($1);
+    $$->Range = mkRange(yylloc, *Data);
+  }
+  | attrs string_attr {
+    $$->Names.emplace_back($1);
+    $$->Range = mkRange(yylloc, *Data);
+  }
+  | {
+    $$ = decorateNode(new AttrPath {
+      .Names = {$1}
+    }, yylloc, *Data);
+  }
 
 
 attrpath
-  : attrpath '.' attr
-  | attrpath '.' string_attr
-  | attr
-  | string_attr
+  : attrpath '.' attr {
+    $$->Names.emplace_back($3);
+    $$->Range = mkRange(yylloc, *Data);
+  }
+  | attrpath '.' string_attr {
+    $$->Names.emplace_back($3);
+    $$->Range = mkRange(yylloc, *Data);
+  }
+  | attr {
+    $$ = decorateNode(new AttrPath {
+      .Names = {$1}
+    }, yylloc, *Data);
+  }
+  | string_attr {
+    $$ = decorateNode(new AttrPath {
+      .Names = {$1}
+    }, yylloc, *Data);
+  }
 
 
 attr