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69 lines
2.5 KiB
Plaintext
69 lines
2.5 KiB
Plaintext
1| |#![allow(unused_assignments, unused_variables, while_true)]
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2| |
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3| |// This test confirms that (1) unexecuted infinite loops are handled correctly by the
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4| |// InstrumentCoverage MIR pass; and (2) Counter Expressions that subtract from zero can be dropped.
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5| |
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6| |struct DebugTest;
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7| |
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8| |impl std::fmt::Debug for DebugTest {
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9| 1| fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
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10| 1| if true {
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11| 1| if false {
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12| 0| while true {
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13| 0| }
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14| 1| }
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15| 1| write!(f, "cool")?;
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^0
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16| 0| } else {
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17| 0| }
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18| |
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19| 11| for i in 0..10 {
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^10
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20| 10| if true {
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21| 10| if false {
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22| 0| while true {}
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23| 10| }
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24| 10| write!(f, "cool")?;
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^0
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25| 0| } else {
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26| 0| }
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27| | }
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28| 1| Ok(())
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29| 1| }
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30| |}
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31| |
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32| |struct DisplayTest;
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33| |
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34| |impl std::fmt::Display for DisplayTest {
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35| 1| fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
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36| 1| if false {
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37| 0| } else {
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38| 1| if false {
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39| 0| while true {}
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40| 1| }
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41| 1| write!(f, "cool")?;
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^0
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42| | }
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43| 11| for i in 0..10 {
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^10
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44| 10| if false {
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45| 0| } else {
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46| 10| if false {
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47| 0| while true {}
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48| 10| }
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49| 10| write!(f, "cool")?;
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^0
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50| | }
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51| | }
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52| 1| Ok(())
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53| 1| }
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54| |}
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55| |
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56| 1|fn main() {
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57| 1| let debug_test = DebugTest;
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58| 1| println!("{:?}", debug_test);
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59| 1| let display_test = DisplayTest;
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60| 1| println!("{}", display_test);
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61| 1|}
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