feat(value,entry): i128 for integers, autoformat safe KdlEntryFormat (#91)

Author: rcgoodfellow

src/entry.rs

@@ -163,7 +163,17 @@ impl KdlEntry {
 
     /// Auto-formats this entry.
     pub fn autoformat(&mut self) {
-        self.format = None;
+        // TODO once MSRV allows:
+        //self.format.take_if(|f| !f.autoformat_keep);
+        if !self
+            .format
+            .as_ref()
+            .map(|f| f.autoformat_keep)
+            .unwrap_or(false)
+        {
+            self.format = None
+        }
+
         if let Some(name) = &mut self.name {
             name.autoformat();
         }
@@ -265,6 +275,8 @@ pub struct KdlEntryFormat {
     pub after_key: String,
     /// Whitespace and comments between an entry's equals sign and its value.
     pub after_eq: String,
+    /// Do not clobber this format during autoformat
+    pub autoformat_keep: bool,
 }
 
 #[cfg(test)]
@@ -378,6 +390,7 @@ mod test {
                     after_ty: "".into(),
                     after_key: "".into(),
                     after_eq: "".into(),
+                    autoformat_keep: false
                 }),
                 ty: Some("\"m\\\"eh\"".parse()?),
                 value: KdlValue::Integer(0xdeadbeef),

src/v2_parser.rs

@@ -1295,7 +1295,7 @@ fn integer_test() {
 }
 
 /// `integer := digit (digit | '_')*`
-fn integer_base(input: &mut Input<'_>) -> PResult<i64> {
+fn integer_base(input: &mut Input<'_>) -> PResult<i128> {
     (
         digit1,
         cut_err(repeat(
@@ -1321,7 +1321,7 @@ fn hex(input: &mut Input<'_>) -> PResult<KdlValue> {
         ),
     ))
     .try_map(|(l, r): (&str, Vec<&str>)| {
-        i64::from_str_radix(&format!("{l}{}", str::replace(&r.join(""), "_", "")), 16)
+        i128::from_str_radix(&format!("{l}{}", str::replace(&r.join(""), "_", "")), 16)
             .map(|x| x * mult)
             .map(KdlValue::Integer)
     })
@@ -1345,8 +1345,9 @@ fn test_hex() {
         KdlValue::Integer(0xdeadbeef123)
     );
     assert!(
-        hex.parse(new_input("0xABCDEF0123456789abcdef")).is_err(),
-        "i64 overflow"
+        hex.parse(new_input("0xABCDEF0123456789abcdef0123456789"))
+            .is_err(),
+        "i128 overflow"
     );
     assert!(hex.parse(new_input("0x_deadbeef123")).is_err());
 
@@ -1365,7 +1366,7 @@ fn octal(input: &mut Input<'_>) -> PResult<KdlValue> {
         ),
     ))
     .try_map(|(l, r): (&str, Vec<&str>)| {
-        i64::from_str_radix(&format!("{l}{}", str::replace(&r.join(""), "_", "")), 8)
+        i128::from_str_radix(&format!("{l}{}", str::replace(&r.join(""), "_", "")), 8)
             .map(|x| x * mult)
             .map(KdlValue::Integer)
     })
@@ -1395,7 +1396,7 @@ fn binary(input: &mut Input<'_>) -> PResult<KdlValue> {
     cut_err(
         (alt(("0", "1")), repeat(0.., alt(("0", "1", "_")))).try_map(
             move |(x, xs): (&str, Vec<&str>)| {
-                i64::from_str_radix(&format!("{x}{}", str::replace(&xs.join(""), "_", "")), 2)
+                i128::from_str_radix(&format!("{x}{}", str::replace(&xs.join(""), "_", "")), 2)
                     .map(|x| x * mult)
                     .map(KdlValue::Integer)
             },
@@ -1426,7 +1427,7 @@ fn test_binary() {
     assert!(binary.parse(new_input("123")).is_err());
 }
 
-fn sign(input: &mut Input<'_>) -> PResult<i64> {
+fn sign(input: &mut Input<'_>) -> PResult<i128> {
     let sign = opt(alt(('+', '-'))).parse_next(input)?;
     let mult = if let Some(sign) = sign {
         if sign == '+' {

src/value.rs

@@ -8,7 +8,7 @@ pub enum KdlValue {
 
     /// A non-float [KDL
     /// Number](https://github.com/kdl-org/kdl/blob/main/SPEC.md#number)
-    Integer(i64),
+    Integer(i128),
 
     /// A floating point [KDL
     /// Number](https://github.com/kdl-org/kdl/blob/main/SPEC.md#number)
@@ -76,8 +76,8 @@ impl std::hash::Hash for KdlValue {
                     *val
                 };
                 // Good enough to be close-ish for our purposes.
-                (val.trunc() as i64).hash(state);
-                (val.fract() as i64).hash(state);
+                (val.trunc() as i128).hash(state);
+                (val.fract() as i128).hash(state);
             }
             KdlValue::Bool(val) => val.hash(state),
             KdlValue::Null => core::mem::discriminant(self).hash(state),
@@ -121,9 +121,9 @@ impl KdlValue {
         }
     }
 
-    /// Returns `Some(i64)` if the `KdlValue` is a [`KdlValue::Integer`],
+    /// Returns `Some(i128)` if the `KdlValue` is a [`KdlValue::Integer`],
     /// otherwise returns `None`.
-    pub fn as_integer(&self) -> Option<i64> {
+    pub fn as_integer(&self) -> Option<i128> {
         use KdlValue::*;
         match self {
             Integer(i) => Some(*i),
@@ -219,8 +219,8 @@ impl KdlValue {
     }
 }
 
-impl From<i64> for KdlValue {
-    fn from(value: i64) -> Self {
+impl From<i128> for KdlValue {
+    fn from(value: i128) -> Self {
         KdlValue::Integer(value)
     }
 }