Add debug variable locations tracking#17
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djolertrk wants to merge 6 commits into0xMiden:nextfrom
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Please note that this has some commits that I will remove from the PR (like the ones that point to the local miden-vm, and some commits for porting it to miden-vm v20 needed for the assert debugging feature -- those are just leftovers from local). But, when using https://github.com/walnuthq/miden-vm/tree/feature/debug-variable-locations-v0.19.1 and 0xMiden/compiler#820, it is able to print real values during debugging session! Test the |
This was referenced Jan 19, 2026
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Part of it ready for review at: #18 |
Replace the old VmStateIterator/VmState/Process API with the new FastProcessor + ResumeContext stepping API. Key changes: - Rewrite DebugExecutor to use FastProcessor::step() with noop-waker polling, so we avoid tokio runtime conflict in TUI - Rewrite DebuggerHost to implement the unified Host trait - Replace MemoryChiplet with direct Memory type from processor - Update Felt API - Update StackInputs::new() to take &[Felt] slice - Remove AssemblyOp::cycle_idx() usage
Implement debug variable inspection by querying the MAST forest directly at each step: - Add DebugVarTracker that records variables from forest.debug_vars_for_operation() - Add resolve_variable_value() for Stack/Memory/Const/Local/Expression locations - Add format_variables() with FMP-based local variable resolution - Add :vars/:variables/:locals commands to TUI - Add REPL mode (--repl flag) with rustyline for interactive debugging - Add REPL commands: step, next, continue, finish, break, stack, vars, etc.
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it depends on #30. |
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This enables us to use
:varsin the debugger and it will print variables values.