refactor(domain): share AST property name reader

src/domain/javascriptAstFingerprint.ts

@@ -2,6 +2,8 @@ import { createHash } from "node:crypto";
 
 import * as t from "@babel/types";
 
+import { propertyName } from "./javascriptAstValues.js";
+
 /** Static CommonJS export names. */
 export interface StaticExports {
   readonly values: readonly string[];
@@ -121,13 +123,6 @@ const memberPath = (node: t.Node | null | undefined): string => {
   return "";
 };
 
-const propertyName = (node: t.Node): string => {
-  if (t.isIdentifier(node)) return node.name;
-  if (t.isStringLiteral(node) || t.isNumericLiteral(node))
-    return String(node.value);
-  return "";
-};
-
 const stringValue = (node: t.Node | null | undefined): string | undefined =>
   t.isStringLiteral(node) ? node.value : undefined;
 

src/domain/javascriptAstValues.ts

@@ -0,0 +1,9 @@
+import * as t from "@babel/types";
+
+/** Read an identifier or literal property name without evaluating syntax. */
+export const propertyName = (node: t.Node): string => {
+  if (t.isIdentifier(node)) return node.name;
+  if (t.isStringLiteral(node) || t.isNumericLiteral(node))
+    return String(node.value);
+  return "";
+};

src/domain/javascriptStaticAnalysisHelpers.ts

@@ -10,6 +10,9 @@ import type {
   JavaScriptStaticPathContext,
   JavaScriptStaticStorage,
 } from "./javascriptStaticAnalysisTypes.js";
+import { propertyName } from "./javascriptAstValues.js";
+
+export { propertyName } from "./javascriptAstValues.js";
 
 /** Explicit result for source text that Babel cannot parse. */
 export const failedJavaScriptStaticAnalysis = (): JavaScriptStaticAnalysis => ({
@@ -299,14 +302,6 @@ const calleeNameAt = (node: t.Node): string => {
   return "";
 };
 
-/** Read a literal property name without evaluating computed syntax. */
-export const propertyName = (node: t.Node): string => {
-  if (t.isIdentifier(node)) return node.name;
-  if (t.isStringLiteral(node) || t.isNumericLiteral(node))
-    return String(node.value);
-  return "";
-};
-
 /** Return a string literal value without evaluating an expression. */
 export const stringValue = (
   node: t.Node | null | undefined,