better deduce function name

src/eval.js

@@ -159,7 +159,7 @@ const codegen = (node, cxt, parent) => {
           return el.value
         } else if(el.type == 'key_value_pair') {
           return '[' + do_codegen(el.key.type == 'computed_property' ? el.key.expr : el.key) + ']' 
-            + ': (' + do_codegen(el.value) + ')'
+            + ': (' + do_codegen(el.value, el) + ')'
         } else {
           throw new Error('unknown node type ' + el.type)
         }
@@ -169,12 +169,18 @@ const codegen = (node, cxt, parent) => {
   } else if(node.type == 'function_call'){
     return codegen_function_call(node, cxt)
   } else if(node.type == 'function_expr'){
-    const name = parent != null && parent.type == 'const'
+    let name
     // TODO here we deduce fn name from left-side of assignment
     // TODO name inference is much more sophisticated, for example
     // `{foo: () => {...}}` infers name `foo`
-        ? parent.name
+    if(parent?.type == 'const') {
-        : 'anonymous'
+      name = parent.name
+    } else if(parent?.type == 'key_value_pair') {
+      // unwrap quotes with JSON.parse
+      name = JSON.parse(parent.key.value)
+    } else {
+      name = 'anonymous'
+    }
     return codegen_function_expr(node, cxt, name)
   } else if(node.type == 'ternary'){
     return ''

test/test.js

@@ -459,6 +459,14 @@ export const tests = [
     )
   }),
 
+  test('function name from object literal', () => {
+    const i = test_initial_state(`
+      const fns = {x: () => 1}
+      fns.x()
+    `)
+    assert_equal(root_calltree_node(i).children[0].fn.name, 'x')
+  }),
+
   test('function name', () => {
     // TODO
     /*