clang-tidy: resolve bugprone-exception-escape

docs/dev/clang-tidy-fixes-2026-04.md

@@ -3,7 +3,7 @@
 1. `bugprone-*`
 
    - [ ] bugprone-easily-swappable-parameters (41)
-   - [ ] bugprone-exception-escape (3)
+   - [x] [bugprone-exception-escape](https://github.com/Framework-R-D/phlex/pull/491) (3)
    - [ ] bugprone-implicit-widening-of-multiplication-result (11)
    - [ ] bugprone-macro-parentheses (398)
    - [ ] bugprone-multi-level-implicit-pointer-conversion (4)

phlex/app/phlex.cpp

@@ -15,6 +15,8 @@ using namespace std::string_literals;
 using namespace boost;
 namespace bpo = boost::program_options;
 
+// NOLINTNEXTLINE(bugprone-exception-escape) -- primary application entry point; exceptions
+// from potentially-throwing calls should be handled internally, not propagated from main
 int main(int argc, char* argv[])
 {
   std::ostringstream descstr;

test/form/form_root_schema_read_test.cpp

@@ -10,7 +10,7 @@
 using namespace form::test;
 
 int main(int const argc, char const** argv)
-{
+try {
   int const technology = getTechnology(argc, argv);
   if (technology < 0)
     return 1;
@@ -21,4 +21,10 @@ int main(int const argc, char const** argv)
     outFile << prod << std::endl;
 
   return 0;
+} catch (std::exception const& e) {
+  std::cerr << "Exception caught in main: " << e.what() << '\n';
+  return 1;
+} catch (...) {
+  std::cerr << "Unknown exception caught in main.\n";
+  return 1;
 }

test/memory-checks/many_events.cpp

@@ -1,14 +1,15 @@
 #include "phlex/core/framework_graph.hpp"
 #include "plugins/layer_generator.hpp"
 
-using namespace phlex;
+#include <iostream>
 
+using namespace phlex;
 namespace {
   unsigned pass_on(unsigned number) { return number; }
 }
 
 int main()
-{
+try {
   // spdlog::flush_on(spdlog::level::trace);
 
   constexpr auto max_events{100'000u};
@@ -24,4 +25,10 @@ int main()
     .input_family(product_query{.creator = "input", .layer = "event", .suffix = "number"})
     .output_product_suffixes("different");
   g.execute();
+} catch (std::exception const& e) {
+  std::cerr << "Exception caught in main: " << e.what() << '\n';
+  return 1;
+} catch (...) {
+  std::cerr << "Unknown exception caught in main.\n";
+  return 1;
 }