Module rpc_trace 

Conversion from geth callTracer output into a CallTraceArena.

This lets traces fetched over RPC (via debug_traceCall / debug_traceTransaction with the callTracer) be decoded and rendered with the same machinery used for locally executed traces. callTracer does not record opcode-level steps, so CallTrace::steps is left empty; everything the call-tree view needs (calls, value, gas, logs, revert reasons) is preserved.

Also hosts the shared classification of the RPC rejections a debug_trace* request can hit, so cast call --debug-trace-call and cast run --debug-trace-transaction surface the same actionable hints.

Functions

call_frame_to_arena

Builds a CallTraceArena from a geth callTracer [CallFrame] tree, overriding the root frame’s address with root_address when the tracer omitted it.

call_kind 🔒

Maps a callTracer call type string to a CallKind, ignoring case: geth reports DELEGATECALL, ZKsync delegateCall.

call_log 🔒

Maps a geth callTracer log frame to a CallLog.

call_tracer_config

Returns the callTracer config for remote traces: every nested call, with its logs.

is_method_not_found_error

Returns whether an RPC transport error reports JSON-RPC method-not-found.

is_missing_state_error

Returns true if err looks like a missing-historical-state rejection, hit whenever a debug_trace* request targets a block whose state a full node has pruned.

is_missing_state_message

Returns true if message reads like a node rejecting a request for state it has pruned.

push_frame 🔒

Pushes frame and all of its children into nodes, returning the index of the pushed node.

status_from_frame 🔒

Maps a callTracer frame to the InstructionResult used for the rendered [status] label.