Add --disable-safety-check option #235
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This option allows variables that are not constrained.
StefanosChaliasos
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katat
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Nov 18, 2024
| ErrorKind::PrivateInputNotUsed, | ||
| private_cell_var.span, | ||
| ))? | ||
| if !disable_safety_check { |
| private_cell_var.span, | ||
| ); | ||
| Err(err)?; | ||
| if !disable_safety_check { |
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Maybe checking this flag at the root block is cleaner :)
if !written_vars.contains(&var) && !disable_safety_check {
katat
reviewed
Nov 18, 2024
| @@ -71,6 +71,10 @@ pub struct CmdBuild { | |||
| /// Run in server mode to help debug and understand the compiler passes. | |||
| #[clap(long)] | |||
| server_mode: bool, | |||
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| /// Do not check that every variable is in a constraint | |||
| #[arg(long = "disable-safety-check", global = true)] | |||
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Maybe adding a doc on why this is necessary in certain cases, and it should not be recommended by default.
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This option allows variables that are not constrained.
Right now, it's a bit ugly how this parameter has to be passed. I will explain the workflow below, but I guess in the future, we can have a struct to capture parameters and pass them around so we can have access to user-defined configs.
We need to add some ifs for this particular feature when we validate that variables have been used. This is happening in the
finalize_circuitfunction inside circuit_writer instead of in the type checking and semantic checks. To pass the parameter from the UI based on which we are going to return an error or not, we do the following:cli/cmd_build_and_check.rsandcli/cmd_prove_and_verify.rsdisable_safety_check) incompiler.rs::compilefunctionCircuitWriter::generate_circuitfunctionfinalize_circuitfunction (In all backends)Furthermore, in the tests, we always set that option to false.