tracing: add index API for Field

0xPoe · 0xPoe · commit 395b6841c8c7 · 2023-11-29T20:34:46.000+08:00
Signed-off-by: hi-rustin &lt;rustin.liu@gmail.com&gt;
diff --git a/tracing-core/src/field.rs b/tracing-core/src/field.rs
@@ -648,6 +648,11 @@ impl Field {
     pub fn name(&self) -> &'static str {
         self.fields.names[self.i]
     }
+
+    /// Returns the index of this field in its [`FieldSet`].
+    pub fn index(&self) -> usize {
+        self.i
+    }
 }
 
 impl fmt::Display for Field {

Original file line number	Diff line number	Diff line change
`@@ -648,6 +648,11 @@ impl Field {`
`648`	`648`	`pub fn name(&self) -> &'static str {`
`649`	`649`	`self.fields.names[self.i]`
`650`	`650`	`}`
	`651`	`+`
	`652`	+ /// Returns the index of this field in its [`FieldSet`].
	`653`	`+ pub fn index(&self) -> usize {`
	`654`	`+ self.i`
	`655`	`+ }`
`651`	`656`	`}`
`652`	`657`
`653`	`658`	`impl fmt::Display for Field {`