make histogram metrics standard

batcher/Cargo.toml

@@ -1,5 +1,5 @@
 [package]
-name = "emit-batcher"
+name = "emit_batcher"
 version = "0.0.0"
 edition = "2021"
 

benchmark/Cargo.toml

@@ -28,7 +28,7 @@ full = ["emit/std", "emit/rng", "emit/serde", "emit/sval"]
 [dependencies.emit]
 path = "../"
 
-[dependencies.emit-batcher]
+[dependencies.emit_batcher]
 path = "../batcher"
 
 [dependencies.criterion]

core/Cargo.toml

@@ -4,9 +4,9 @@ version = "0.0.0"
 edition = "2021"
 
 [features]
-std = ["alloc", "value-bag/error"]
-alloc = ["value-bag/alloc", "value-bag/owned"]
-sval = ["value-bag/sval", "dep:sval", "dep:sval_ref"]
+std = ["alloc", "value-bag/error", "sval_nested?/std", "sval?/std", "serde?/std"]
+alloc = ["value-bag/alloc", "value-bag/owned", "sval_nested?/alloc", "sval?/alloc", "serde?/alloc"]
+sval = ["value-bag/sval", "dep:sval", "dep:sval_ref", "dep:sval_nested"]
 serde = ["value-bag/serde", "dep:serde"]
 
 [dependencies.value-bag]
@@ -22,6 +22,11 @@ version = "2"
 optional = true
 default-features = false
 
+[dependencies.sval_nested]
+version = "2"
+optional = true
+default-features = false
+
 [dependencies.serde]
 version = "1"
 optional = true

core/src/key.rs

@@ -1,5 +1,8 @@
 use core::{borrow::Borrow, fmt, hash, marker::PhantomData};
 
+#[cfg(feature = "alloc")]
+use alloc::boxed::Box;
+
 pub struct Key<'k> {
     value: *const str,
     value_static: Option<&'static str>,
@@ -244,7 +247,7 @@ impl<'k> serde::Serialize for Key<'k> {
 
 #[cfg(feature = "alloc")]
 mod alloc_support {
-    use alloc::borrow::Cow;
+    use alloc::borrow::{Cow, ToOwned};
 
     use super::*;
 
@@ -286,6 +289,3 @@ mod alloc_support {
 }
 
 use crate::value::{ToValue, Value};
-
-#[cfg(feature = "alloc")]
-pub use self::alloc_support::*;

core/src/metrics.rs

@@ -90,6 +90,6 @@ mod tests {
 
         assert_eq!("metric", well_known.name());
         assert_eq!("sum", well_known.kind());
-        assert_eq!(1, well_known.value().to_usize().unwrap());
+        assert_eq!(1.0, well_known.value().to_f64().unwrap());
     }
 }

core/src/template.rs

@@ -1,5 +1,8 @@
 use core::fmt;
 
+#[cfg(feature = "alloc")]
+use alloc::boxed::Box;
+
 use crate::{
     empty::Empty,
     key::Key,
@@ -424,6 +427,8 @@ enum PartKind<'a> {
 mod alloc_support {
     use super::*;
 
+    use alloc::vec::Vec;
+
     impl Template<'static> {
         pub fn new_owned(parts: impl Into<Box<[Part<'static>]>>) -> Self {
             let parts = parts.into();
@@ -482,6 +487,3 @@ mod alloc_support {
         }
     }
 }
-
-#[cfg(feature = "alloc")]
-pub use self::alloc_support::*;