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|
LL| |#![allow(unused_assignments, unused_variables, while_true)]
LL| |
LL| |// This test confirms that (1) unexecuted infinite loops are handled correctly by the
LL| |// InstrumentCoverage MIR pass; and (2) Counter Expressions that subtract from zero can be dropped.
LL| |
LL| |struct DebugTest;
LL| |
LL| |impl std::fmt::Debug for DebugTest {
LL| 1| fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
LL| 1| if true {
LL| 1| if false {
LL| 0| while true {
LL| 0| }
LL| 1| }
LL| 1| write!(f, "cool")?;
^0
LL| 0| } else {
LL| 0| }
LL| |
LL| 11| for i in 0..10 {
^10
LL| 10| if true {
LL| 10| if false {
LL| 0| while true {}
LL| 10| }
LL| 10| write!(f, "cool")?;
^0
LL| 0| } else {
LL| 0| }
LL| | }
LL| 1| Ok(())
LL| 1| }
LL| |}
LL| |
LL| |struct DisplayTest;
LL| |
LL| |impl std::fmt::Display for DisplayTest {
LL| 1| fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
LL| 1| if false {
LL| 0| } else {
LL| 1| if false {
LL| 0| while true {}
LL| 1| }
LL| 1| write!(f, "cool")?;
^0
LL| | }
LL| 11| for i in 0..10 {
^10
LL| 10| if false {
LL| 0| } else {
LL| 10| if false {
LL| 0| while true {}
LL| 10| }
LL| 10| write!(f, "cool")?;
^0
LL| | }
LL| | }
LL| 1| Ok(())
LL| 1| }
LL| |}
LL| |
LL| 1|fn main() {
LL| 1| let debug_test = DebugTest;
LL| 1| println!("{:?}", debug_test);
LL| 1| let display_test = DisplayTest;
LL| 1| println!("{}", display_test);
LL| 1|}
|
