By name: debugger description: Use rust-gdb to inspect variables and step through code without modifying it. Prefer this over print debugging when investigating compiler internals or runtime behavior (lldb is unavailable on Claude Code Web).
Debugger
Debug wado compiler with rust-gdb.
Usage
cat > /tmp/gdb_commands.txt << 'EOF'
file ./target/debug/wado
set pagination off
break wado-compiler/src/codegen.rs:5985
run compile -o /tmp/out.wasm example/hello.wado
info locals
print *expr
bt 5
quit
EOF
rust-gdb --batch -x /tmp/gdb_commands.txt
Common commands
| Command | Description |
|---|---|
info locals |
Show local variables |
print *expr |
Dereference and print pointer |
bt 5 |
Backtrace (top 5 frames) |
continue |
Resume execution |
Notes
lldb does not work in Claude Code Web due to ptrace restrictions:
error: Cannot launch '...': personality get failed: Invalid argument
Use rust-gdb instead.