CMakeLists.txt          |  1 +
 src/analyze.cpp         | 37 +++++++------
 src/analyze.hpp         |  1 +
 src/ir.cpp              | 54 ++++++++++++++++--
 src/range_set.cpp       | 81 +++++++++++++++++++++++++++
 src/range_set.hpp       | 30 ++++++++++
 test/cases/switch.zig   | 54 +++++++++++++++---
 test/cases/try.zig      |  1 +
 test/compile_errors.zig | 94 +++++++++++++++++++++++++-------
 9 files changed, 304 insertions(+), 49 deletions(-)