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add verify_errors_as_warnings #1525

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add verify_errors_as_warnings #1525

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8 changes: 6 additions & 2 deletions prusti-interface/src/prusti_error.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -70,10 +70,14 @@ impl PrustiError {
/// Report a verification error of the verified Rust code
pub fn verification<S: ToString>(message: S, span: MultiSpan) -> Self {
check_message(message.to_string());
PrustiError::new(
let mut error = PrustiError::new(
format!("[Prusti: verification error] {}", message.to_string()),
span,
)
);
if config::verify_errors_as_warnings() {
error.set_warning();
}
error
}

pub fn disabled_verification<S: ToString>(message: S, span: MultiSpan) -> Self {
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7 changes: 7 additions & 0 deletions prusti-utils/src/config.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -106,6 +106,7 @@ lazy_static::lazy_static! {
settings.set_default("use_more_complete_exhale", true).unwrap();
settings.set_default("skip_unsupported_features", false).unwrap();
settings.set_default("internal_errors_as_warnings", false).unwrap();
settings.set_default("verify_errors_as_warnings", false).unwrap();
settings.set_default("allow_unreachable_unsupported_code", false).unwrap();
settings.set_default("no_verify", false).unwrap();
settings.set_default("no_verify_deps", false).unwrap();
Expand Down Expand Up @@ -972,6 +973,12 @@ pub fn internal_errors_as_warnings() -> bool {
read_setting("internal_errors_as_warnings")
}

/// When enabled, verify errors are reported as warnings instead of errors.
/// Used for testing.
pub fn verify_errors_as_warnings() -> bool {
read_setting("verify_errors_as_warnings")
}

/// When enabled, unsupported code is encoded as `assert false`. This way error
/// messages are reported only for unsupported code that is actually reachable.
pub fn allow_unreachable_unsupported_code() -> bool {
Expand Down