Merge pull request #350 from github/vea_problem_3_core_implementation

Vea problem 3 core implementation

Author: BekaValentine

languages/tree-sitter-stack-graphs-javascript/rust/npm_package.rs

@@ -111,27 +111,21 @@ impl FileAnalyzer for NpmPackageAnalyzer {
             );
             add_edge(graph, pkg_name_pop, module_guard, 0);
 
-            // reach main exports directly via package name (with precedence)
-            //
-            //     [pop pkg_name] -1-> [pop "GUARD:EXPORTS"] -> [push "GUARD:EXPORTS"] -> [push main]* -> [push "GUARD:MODULE"] -> [push pkg_internal_name]
-            //
-            let exports_guard_pop = add_pop(
-                graph,
-                file,
-                pkg_name_pop,
-                EXPORTS_GUARD,
-                "exports_guard_pop",
-            );
+            // Common main
             let main = Some(npm_pkg.main)
                 .filter(|main| !main.is_empty())
                 .and_then(|main| NormalizedRelativePath::from_str(&main))
                 .map(|p| p.into_path_buf())
                 .unwrap_or(PathBuf::from("index"))
                 .with_extension("");
+
             let main_push = add_module_pushes(graph, file, &main, module_guard, "main_push");
-            let exports_guard_push =
-                add_push(graph, file, main_push, EXPORTS_GUARD, "exports_guard_push");
-            add_edge(graph, exports_guard_pop, exports_guard_push, 0);
+
+            // reach main directly via package name (with precedence)
+            //
+            //     [pop pkg_name] -1-> [push main]* -> [push pkg_internal_name]
+            //
+            add_edge(graph, pkg_name_pop, main_push, 0);
         }
 
         // reach dependencies via package internal name

languages/tree-sitter-stack-graphs-javascript/rust/util.rs

@@ -14,7 +14,6 @@ use stack_graphs::arena::Handle;
 use stack_graphs::graph::File;
 use stack_graphs::graph::StackGraph;
 
-pub const EXPORTS_GUARD: &str = "GUARD:EXPORTS";
 pub const MODULE_GUARD: &str = "GUARD:MODULE";
 pub const PKG_GUARD: &str = "GUARD:PKG";
 pub const PKG_INTERNAL_GUARD: &str = "GUARD:PKG_INTERNAL";

languages/tree-sitter-stack-graphs-javascript/src/stack-graphs.tsg

@@ -326,6 +326,7 @@ inherit .return_or_yield
       "([^/]+)$" {
         attr (module_pop_end) symbol_definition = $1, source_node = @prog
         attr (module_pop_end) empty_source_span
+        attr (module_pop_end) definiens_node = @prog
       }
     }