diff options
| -rw-r--r-- | lib/internal/util/inspect.js | 7 | ||||
| -rw-r--r-- | test/parallel/test-util-inspect-proxy.js | 3 |
2 files changed, 10 insertions, 0 deletions
diff --git a/lib/internal/util/inspect.js b/lib/internal/util/inspect.js index 4e6f967c6a..a4a9a05ece 100644 --- a/lib/internal/util/inspect.js +++ b/lib/internal/util/inspect.js @@ -1648,6 +1648,13 @@ function reduceToSingleString( } function hasBuiltInToString(value) { + // Prevent triggering proxy traps. + const getFullProxy = false; + const proxyTarget = getProxyDetails(value, getFullProxy); + if (proxyTarget !== undefined) { + value = proxyTarget; + } + // Count objects that have no `toString` function as built-in. if (typeof value.toString !== 'function') { return true; diff --git a/test/parallel/test-util-inspect-proxy.js b/test/parallel/test-util-inspect-proxy.js index c684026b19..505503d579 100644 --- a/test/parallel/test-util-inspect-proxy.js +++ b/test/parallel/test-util-inspect-proxy.js @@ -41,6 +41,9 @@ proxyObj = new Proxy(target, handler); // Inspecting the proxy should not actually walk it's properties util.inspect(proxyObj, opts); +// Make sure inspecting object does not trigger any proxy traps. +util.format('%s', proxyObj); + // getProxyDetails is an internal method, not intended for public use. // This is here to test that the internals are working correctly. let details = processUtil.getProxyDetails(proxyObj, true); |