config: workspace display order

toml-config/src/config/parsers/workspace_display_order.rs

@@ -0,0 +1,32 @@
+use {
+    crate::{
+        config::parser::{DataType, ParseResult, Parser, UnexpectedDataType},
+        toml::toml_span::{Span, SpannedExt},
+    },
+    jay_config::workspace::WorkspaceDisplayOrder,
+    thiserror::Error,
+};
+
+#[derive(Debug, Error)]
+pub enum WorkspaceDisplayOrderParserError {
+    #[error(transparent)]
+    Expected(#[from] UnexpectedDataType),
+    #[error("Unknown workspace display order {0}")]
+    Unknown(String),
+}
+
+pub struct WorkspaceDisplayOrderParser;
+
+impl Parser for WorkspaceDisplayOrderParser {
+    type Value = WorkspaceDisplayOrder;
+    type Error = WorkspaceDisplayOrderParserError;
+    const EXPECTED: &'static [DataType] = &[DataType::String];
+
+    fn parse_string(&mut self, span: Span, string: &str) -> ParseResult<Self> {
+        match string {
+            "manual" => Ok(WorkspaceDisplayOrder::Manual),
+            "sorted" => Ok(WorkspaceDisplayOrder::Sorted),
+            _ => Err(WorkspaceDisplayOrderParserError::Unknown(string.to_string()).spanned(span)),
+        }
+    }
+}