feat: Support field_expression special case for C

Author: phanen

lua/debugprint/filetypes.lua

@@ -80,6 +80,21 @@ return {
         right = '\\n");',
         mid_var = '%d\\n", ',
         right_var = ");",
+        find_treesitter_variable = function(node)
+            if node:type() == "field_expression" then
+                return vim.treesitter.get_node_text(node, 0)
+            elseif
+                node:parent()
+                and node:parent():type() == "field_expression"
+                and node:prev_named_sibling()
+            then
+                return vim.treesitter.get_node_text(node:parent(), 0)
+            elseif node:type() == "identifier" then
+                return vim.treesitter.get_node_text(node, 0)
+            else
+                return nil
+            end
+        end,
     },
     ["cmake"] = {
         left = 'message(DEBUG "',

tests/debugprint.lua

@@ -1197,6 +1197,29 @@ describe("can handle treesitter identifiers", function()
         assert.equals(notify_message, nil)
     end)
 
+    it("special case dot expression (c)", function()
+        debugprint.setup()
+
+        init_file({
+            "int main() {",
+            "person.year = 1984;",
+            "}",
+        }, "c", 2, 10)
+
+        feedkeys("g?v")
+
+        check_lines({
+            "int main() {",
+            "person.year = 1984;",
+            'fprintf(stderr, "DEBUGPRINT[1]: 45.c:2: person.year=%d\\n", person.year);',
+            "}",
+        })
+
+        assert.are.same(vim.api.nvim_win_get_cursor(0), { 2, 10 })
+
+        assert.equals(notify_message, nil)
+    end)
+
     it("non-special case variable (python)", function()
         debugprint.setup()