{"header":{"message":"Eliminate backtrace_if_absent in Error::context\n\nThis avoids stepping through the list of causes when adding context to\nthe anyhow::Error type which is known to already hold a backtrace.\n\nReduces the release-mode time of the following loop from 4 seconds to 4\nmilliseconds.\n\n let mut err = anyhow!(\"...\");\n for _ in 0..25000 {\n err = err.context(\"...\");\n }\n","description":null,"timestamp":"2019-10-27T23:02:50Z","authors":[{"email":"dtolnay@gmail.com","name":"David Tolnay"}]},"hash":"BA4YE6QGRTYONATHUP347OFUBUCWXQPNZ6Q5DIQ2DLJLRZJ6AC4AC","authors":[],"deps":{"hashes":[["BA4YE6QGRTYONATHUP347OFUBUCWXQPNZ6Q5DIQ2DLJLRZJ6AC4AC","Eliminate backtrace_if_absent in Error::context\n\nThis avoids stepping through the list of causes when adding context to\nthe anyhow::Error type which is known to already hold a backtrace.\n\nReduces the release-mode time of the following loop from 4 seconds to 4\nmilliseconds.\n\n let mut err = anyhow!(\"...\");\n for _ in 0..25000 {\n err = err.context(\"...\");\n }\n"],["AA",null],["UB53AXKRDBNRMOXEAJISW7G4IZLBBWIDW2GPHNGQVRBMFLVKWUTQC","Swap ContextError type parameters to match type name\n"],["CITEDKPB6MKVZUEYEDE5ZKTNVY35HCOAXKDPYG7YLLEOVFNMSRXQC","Import implementation from fehler 1.0.0-alpha.1\n"],["RQSDP2B2OVRFRJ33OZCVB4TYCQMSR3JZYG7FNA6TQ3HFABTGOGMQC","Add context method to Error\n"],["GMOFRJTUHSZVX2U7Z7PVQDY45MQJQ7LTUIHCKHTCJJX2P6UH76ZAC","Explain the purpose of Error::context\n"],["OTLOFVIUXGUQQKEFKNJXUP7NRMAMJV2YOTECX5MBN5CKP4QWRVVQC","Change Error::from calls to Error::new to cut one level of noise from backtraces\n"],["ZRCBNUBSB3NEPBPRIRZTRPEKFNAFIRH2AXG2CLXRIYASUXA2QH6AC","Remove as_dyn_error methods from Error\n\nThe underlying `dyn StdError + Send + Sync + 'static` is still available\nthrough Deref and DerefMut.\n"],["FI5C6CUHWX54GBVTIVMOO2E6KS4SMKMAZJULXGGVNST5QFZFHSMAC","Link to Context trait from Error::context method\n"]],"deps":["UB53AXKRDBNRMOXEAJISW7G4IZLBBWIDW2GPHNGQVRBMFLVKWUTQC"],"known":["CITEDKPB6MKVZUEYEDE5ZKTNVY35HCOAXKDPYG7YLLEOVFNMSRXQC","RQSDP2B2OVRFRJ33OZCVB4TYCQMSR3JZYG7FNA6TQ3HFABTGOGMQC","ZRCBNUBSB3NEPBPRIRZTRPEKFNAFIRH2AXG2CLXRIYASUXA2QH6AC","FI5C6CUHWX54GBVTIVMOO2E6KS4SMKMAZJULXGGVNST5QFZFHSMAC","GMOFRJTUHSZVX2U7Z7PVQDY45MQJQ7LTUIHCKHTCJJX2P6UH76ZAC","OTLOFVIUXGUQQKEFKNJXUP7NRMAMJV2YOTECX5MBN5CKP4QWRVVQC"]},"hunks":[{"Replacement":{"inode":{"change":3,"pos":3238},"path":"src/error.rs","line":170,"ins":{"up_context":[{"change":3,"pos":559}],"down_context":[{"change":3,"pos":619}],"flag":"BLOCK","start":0,"end":35,"inode":{"change":3,"pos":3238}},"del":{"edges":[{"previous":"BLOCK","flag":"BLOCK | DELETED","from":{"change":3,"pos":559},"to":{"change":3,"start":114,"end":148},"introduced_by":3}],"inode":{"change":3,"pos":3238}},"ins_contents":[{"Add":" let error = ContextError {"}],"del_contents":[{"Del":" Error::new(ContextError {\n"}]}},{"Replacement":{"inode":{"change":3,"pos":3238},"path":"src/error.rs","line":173,"ins":{"up_context":[{"change":2,"pos":331}],"down_context":[{"change":3,"pos":5336}],"flag":"BLOCK","start":36,"end":724,"inode":{"change":3,"pos":3238}},"del":{"edges":[{"previous":"","flag":"DELETED","from":{"change":2,"pos":331},"to":{"change":3,"start":640,"end":651},"introduced_by":2},{"previous":"BLOCK","flag":"BLOCK | DELETED","from":{"change":3,"pos":640},"to":{"change":3,"start":640,"end":651},"introduced_by":3}],"inode":{"change":3,"pos":3238}},"ins_contents":[{"Add":" };"},{"Add":""},{"Add":" let vtable = &ErrorVTable {"},{"Add":" object_drop: object_drop::>,"},{"Add":" object_drop_front: object_drop_front::>,"},{"Add":" object_ref: object_ref::>,"},{"Add":" object_mut: object_mut::>,"},{"Add":" object_boxed: object_boxed::>,"},{"Add":" object_is: object_is::>,"},{"Add":" };"},{"Add":""},{"Add":" // As the cause is anyhow::Error, we already have a backtrace for it."},{"Add":" let backtrace = None;"},{"Add":""},{"Add":" // Safety: passing vtable that operates on the right type."},{"Add":" unsafe { Error::construct(error, vtable, backtrace) }"}],"del_contents":[{"Del":" })\n"}]}}],"owner":"yaahc","repo":"eyre","token":"mHOPlbTQjFW1DxjugjvNeSNMVVN5LIqb69fxpNcteVU=","login":null}

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