[−][src]Crate call_trace
Example
use call_trace::{trace_with, CallContext, Trace}; struct My; impl My { #[inline] #[trace_with(self)] /// test fn foo(&mut self) { self.bar(); } #[trace_with(self)] fn bar(&mut self) { let x = self.baz(); let y = self.baz(); println!("x + y = {}", x + y); } #[trace_with(self)] fn baz(&mut self) -> i32 { 15 } } impl Trace for My { fn on_pre(&mut self, ctx: &CallContext) { println!("> {:?}", ctx); } fn on_post(&mut self, ctx: &CallContext) { println!("< {:?}", ctx); } } fn main() { My.foo(); }
Output
> CallContext { file: "main.rs", line: 13, fn_name: "bar" }
> CallContext { file: "main.rs", line: 20, fn_name: "baz" }
< CallContext { file: "main.rs", line: 20, fn_name: "baz" }
> CallContext { file: "main.rs", line: 20, fn_name: "baz" }
< CallContext { file: "main.rs", line: 20, fn_name: "baz" }
x + y = 30
< CallContext { file: "main.rs", line: 13, fn_name: "bar" }
< CallContext { file: "main.rs", line: 7, fn_name: "foo" }
Re-exports
pub use call_trace_macro::trace_with; |
Structs
CallContext | Contains information about the current call site. |
Traits
Trace | Tracing interface invoked by |