metro-source-map - npm Package Compare versions

Comparing version 0.76.6 to 0.76.7

package.json

 {
   "name": "metro-source-map",
-  "version": "0.76.6",
+  "version": "0.76.7",
   "description": "🚇 Source map generator for Metro.",
@@ -18,5 +18,5 @@ "main": "src/source-map.js",
     "invariant": "^2.2.4",
-    "metro-symbolicate": "0.76.6",
+    "metro-symbolicate": "0.76.7",
     "nullthrows": "^1.1.1",
-    "ob1": "0.76.6",
+    "ob1": "0.76.7",
     "source-map": "^0.5.6",
@@ -23,0 +23,0 @@ "vlq": "^1.0.0"

src/generateFunctionMap.js

@@ -21,2 +21,3 @@ /**
 const t = require("@babel/types");
+const invariant = require("invariant");
 const nullthrows = require("nullthrows");
@@ -51,8 +52,47 @@ const fsPath = require("path");
 }
+function functionMapBabelPlugin() {
+  return {
+    // Eagerly traverse the tree on `pre`, before any visitors have run, so
+    // that regardless of plugin order we're dealing with the AST before any
+    // mutations.
+    visitor: {},
+    pre: ({ path, metadata, opts }) => {
+      const { filename } = nullthrows(opts);
+      const encoder = new MappingEncoder();
+      const visitor = getFunctionMapVisitor(
+        {
+          filename,
+        },
+        (mapping) => encoder.push(mapping)
+      );
+      invariant(
+        path && t.isProgram(path.node),
+        "path missing or not a program node"
+      );
+      // $FlowFixMe[prop-missing] checked above
+      // $FlowFixMe[incompatible-type-arg] checked above
+      const programPath = path;
+      visitor.enter(programPath);
+      programPath.traverse({
+        Function: visitor,
+        Class: visitor,
+      });
+      visitor.exit(programPath);
 
-/**
- * Traverses a Babel AST and calls the supplied callback with function name
- * mappings, one at a time.
- */
-function forEachMapping(ast, context, pushMapping) {
+      // $FlowFixMe[prop-missing] Babel `File` is not generically typed
+      const metroMetadata = metadata;
+      const functionMap = encoder.getResult();
+
+      // Set the result on a metadata property
+      if (!metroMetadata.metro) {
+        metroMetadata.metro = {
+          functionMap,
+        };
+      } else {
+        metroMetadata.metro.functionMap = functionMap;
+      }
+    },
+  };
+}
+function getFunctionMapVisitor(context, pushMapping) {
   const nameStack = [];
@@ -101,3 +141,3 @@ let tailPos = {
     : null;
-  const visitor = {
+  return {
     enter(path) {
@@ -114,3 +154,11 @@ let name = getNameForPath(path);
   };
+}
 
+/**
+ * Traverses a Babel AST and calls the supplied callback with function name
+ * mappings, one at a time.
+ */
+function forEachMapping(ast, context, pushMapping) {
+  const visitor = getFunctionMapVisitor(context, pushMapping);
+
   // Traversing populates/pollutes the path cache (`traverse.cache.path`) with
@@ -447,4 +495,5 @@ // values missing the `hub` property needed by Babel transformation, so we
 module.exports = {
+  functionMapBabelPlugin,
   generateFunctionMap,
   generateFunctionMappingsArray,
 };

src/source-map.js

@@ -19,3 +19,6 @@ /**
 const normalizeSourcePath = require("./Consumer/normalizeSourcePath");
-const { generateFunctionMap } = require("./generateFunctionMap");
+const {
+  functionMapBabelPlugin,
+  generateFunctionMap,
+} = require("./generateFunctionMap");
 const Generator = require("./Generator");
@@ -186,2 +189,3 @@ // $FlowFixMe[untyped-import] - source-map
   fromRawMappingsNonBlocking,
+  functionMapBabelPlugin,
   normalizeSourcePath,
@@ -188,0 +192,0 @@ toBabelSegments,

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Found 1 instance in 1 package

Fixed alerts

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Found 1 instance in 1 package

Improved metrics

Total package byte prevSize

126208

increased by2.71%

Lines of code

1953

increased by2.68%

Dependency changes

• + Addedmetro-symbolicate@0.76.7(transitive)

• + Addedob1@0.76.7(transitive)

• - Removedmetro-symbolicate@0.76.6(transitive)

• - Removedob1@0.76.6(transitive)

• Updatedmetro-symbolicate@0.76.7

• Updatedob1@0.76.7