8424ddbb3e
This PR improves the “expected type mismatch” error message by omitting the type's types when they are defeq, and putting them into separate lines when not. I found it rather tediuos to parse the error message when the expected type is long, because I had to find the `:` in the middle of a large expression somewhere. Also, when both are of sort `Prop` or `Type` it doesn't add much value to print the sort (and it’s only one hover away anyways).
38 lines
987 B
Text
38 lines
987 B
Text
doErrorMsg.lean:3:2-3:13: error: type mismatch
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IO.getStdin
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has type
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BaseIO IO.FS.Stream
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but is expected to have type
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IO PUnit
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doErrorMsg.lean:15:19-15:21: error: type mismatch
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f1
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has type
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ExceptT String (StateT Nat Id) Nat
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but is expected to have type
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ExceptT String (StateT Nat Id) String
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doErrorMsg.lean:19:19-19:24: error: type mismatch
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f2 10
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has type
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ExceptT String (StateT Nat Id) Nat
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but is expected to have type
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ExceptT String (StateT Nat Id) String
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doErrorMsg.lean:23:10-23:12: error: type mismatch
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f2
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has type
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Nat → ExceptT String (StateT Nat Id) Nat
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but is expected to have type
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ExceptT String (StateT Nat Id) ?m
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doErrorMsg.lean:24:2-24:4: error: type mismatch
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f1
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has type
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ExceptT String (StateT Nat Id) Nat
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but is expected to have type
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ExceptT String (StateT Nat Id) String
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doErrorMsg.lean:28:13-28:18: error: Application type mismatch: In the application
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Prod.mk false
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the argument
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false
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has type
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Bool
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but is expected to have type
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Nat
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