perf: Update TOML (#669)

For more context on the performance improvements, see
https://epage.github.io/blog/2025/07/toml-09/

I held off on switching to `DeTable` (avoiding serde overhead) because
`toml::de::DeInteger` doesn't expose enough of an API

Author: epage

Cargo.lock

@@ -135,13 +135,13 @@ toml = ["dep:toml"]
 serde = "1.0"
 
 async-trait = { version = "0.1", optional = true }
-toml = { version = "0.8", optional = true, default-features = false, features = ["parse"] }
+toml = { version = "0.9", optional = true, default-features = false, features = ["parse", "serde"] }
 serde_json = { version = "1.0", optional = true }
 yaml-rust2 = { version = "0.10", optional = true }
 rust-ini = { version = "0.21", optional = true }
 ron = { version = "0.8", optional = true }
 json5_rs = { version = "0.4", optional = true, package = "json5" }
-indexmap = { version = "2.2", features = ["serde"], optional = true }
+indexmap = { version = "2.10.0", features = ["serde"], optional = true }
 convert_case = { version = "0.6", optional = true }
 pathdiff = "0.2"
 winnow = "0.7.0"

Cargo.toml

@@ -1,6 +1,5 @@
 use std::error::Error;
 
-use crate::format;
 use crate::map::Map;
 use crate::value::Value;
 
@@ -9,28 +8,33 @@ pub(crate) fn parse(
     text: &str,
 ) -> Result<Map<String, Value>, Box<dyn Error + Send + Sync>> {
     // Parse a TOML value from the provided text
-    let value = from_toml_value(uri, &toml::from_str(text)?);
-    format::extract_root_table(uri, value)
+    let table = from_toml_table(uri, toml::from_str(text)?);
+    Ok(table)
 }
 
-fn from_toml_value(uri: Option<&String>, value: &toml::Value) -> Value {
-    match *value {
-        toml::Value::String(ref value) => Value::new(uri, value.clone()),
+fn from_toml_table(uri: Option<&String>, table: toml::Table) -> Map<String, Value> {
+    let mut m = Map::new();
+
+    for (key, value) in table {
+        m.insert(key, from_toml_value(uri, value));
+    }
+
+    m
+}
+
+fn from_toml_value(uri: Option<&String>, value: toml::Value) -> Value {
+    match value {
+        toml::Value::String(value) => Value::new(uri, value),
         toml::Value::Float(value) => Value::new(uri, value),
         toml::Value::Integer(value) => Value::new(uri, value),
         toml::Value::Boolean(value) => Value::new(uri, value),
 
-        toml::Value::Table(ref table) => {
-            let mut m = Map::new();
-
-            for (key, value) in table {
-                m.insert(key.clone(), from_toml_value(uri, value));
-            }
-
+        toml::Value::Table(table) => {
+            let m = from_toml_table(uri, table);
             Value::new(uri, m)
         }
 
-        toml::Value::Array(ref array) => {
+        toml::Value::Array(array) => {
             let mut l = Vec::new();
 
             for value in array {
@@ -40,6 +44,6 @@ fn from_toml_value(uri: Option<&String>, value: &toml::Value) -> Value {
             Value::new(uri, l)
         }
 
-        toml::Value::Datetime(ref datetime) => Value::new(uri, datetime.to_string()),
+        toml::Value::Datetime(datetime) => Value::new(uri, datetime.to_string()),
     }
 }

src/file/format/toml.rs

@@ -161,9 +161,8 @@ error = tru
 TOML parse error at line 3, column 9
   |
 3 | error = tru
-  |         ^
-invalid string
-expected `"`, `'`
+  |         ^^^
+invalid boolean, expected `true`
 
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     );