Remove ConditionSyntaxError

It's not usefully different from throwing std::runtime_error.

ffi-errors/Cargo.toml

@@ -9,4 +9,3 @@ libloot = { path = ".." }
 
 esplugin.workspace = true
 libloadorder.workspace = true
-loot-condition-interpreter.workspace = true

ffi-errors/src/lci.rs

@@ -1,34 +0,0 @@
-// Unless otherwise noted, these constants and the mapping logic are copied from
-// loot-condition-interpreter-ffi.
-
-use loot_condition_interpreter::Error;
-use std::ffi::c_int;
-
-/// Something went wrong while parsing the condition expression.
-const LCI_ERROR_PARSING_ERROR: c_int = -2;
-
-/// Something went wrong while getting the version of an executable.
-const LCI_ERROR_PE_PARSING_ERROR: c_int = -3;
-
-/// Some sort of I/O error occurred.
-const LCI_ERROR_IO_ERROR: c_int = -4;
-
-/// The library encountered an error that should not have been possible to
-/// encounter.
-const LCI_ERROR_INTERNAL_LOGIC_ERROR: c_int = -8;
-
-// This constant is not copied from loot-condition-interpreter-ffi, but does not
-// conflict with any values defined there.
-pub(crate) const LCI_ERROR_UNKNOWN: c_int = c_int::MAX;
-
-#[must_use]
-pub(crate) fn map_error(err: &Error) -> c_int {
-    match err {
-        Error::ParsingIncomplete(_) | Error::UnconsumedInput(_) | Error::ParsingError(_, _) => {
-            LCI_ERROR_PARSING_ERROR
-        }
-        Error::PeParsingError(_, _) => LCI_ERROR_PE_PARSING_ERROR,
-        Error::IoError(_, _) => LCI_ERROR_IO_ERROR,
-        _ => LCI_ERROR_INTERNAL_LOGIC_ERROR,
-    }
-}

ffi-errors/src/lib.rs

@@ -94,10 +94,9 @@
 )]
 use std::{error::Error, ffi::c_int};
 
-use libloot::error::{ConditionEvaluationError, LoadOrderError, PluginDataError};
+use libloot::error::{LoadOrderError, PluginDataError};
 
 mod esplugin;
-mod lci;
 mod libloadorder;
 
 // It's important for API stability that these variants' values don't change.
@@ -107,7 +106,6 @@ mod libloadorder;
 pub enum SystemErrorCategory {
     Esplugin = 1,
     Libloadorder = 2,
-    LootConditionInterpreter = 3,
 }
 
 impl std::fmt::Display for SystemErrorCategory {
@@ -115,9 +113,6 @@ impl std::fmt::Display for SystemErrorCategory {
         match self {
             SystemErrorCategory::Esplugin => write!(f, "esplugin"),
             SystemErrorCategory::Libloadorder => write!(f, "libloadorder"),
-            SystemErrorCategory::LootConditionInterpreter => {
-                write!(f, "loot-condition-interpreter")
-            }
         }
     }
 }
@@ -190,22 +185,6 @@ impl From<LoadOrderError> for SystemError {
     }
 }
 
-impl From<ConditionEvaluationError> for SystemError {
-    fn from(value: ConditionEvaluationError) -> Self {
-        const LCI_ERROR_UNKNOWN: (i32, &str) = (
-            lci::LCI_ERROR_UNKNOWN,
-            "Could not retrieve loot-condition-interpreter error message",
-        );
-
-        from_error(
-            value,
-            SystemErrorCategory::LootConditionInterpreter,
-            LCI_ERROR_UNKNOWN,
-            crate::lci::map_error,
-        )
-    }
-}
-
 fn from_error<U: Error, V: Error + 'static, F: Fn(&V) -> c_int>(
     error: U,
     category: SystemErrorCategory,