Find parameter list of the inject function

findInjectParameterList.java

  @Nullable
  private JSParameterList findInjectParameterList(PsiFile file) {
    // Recursively find all the call expressions in the file.
    Collection<JSCallExpression> callExpressions =
        PsiTreeUtil.findChildrenOfType(file, JSCallExpression.class);
    for (JSCallExpression jsCallExpression : callExpressions) {
      // Find the inject() element.
      if (jsCallExpression.getText().startsWith("inject")) {
        // Get the parameter list. Should be a child of the call expression.
        return PsiTreeUtil.findChildOfType(jsCallExpression, JSParameterList.class);
      }
    }
    return null;
  }