Official Go implementation of the Ethereum protocol

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Felix Lange 693d9ccbfb trie: more node iterator improvements (#14615) ... * ethdb: remove Set Set deadlocks immediately and isn't part of the Database interface. * trie: add Err to Iterator This is useful for testing because the underlying NodeIterator doesn't need to be kept in a separate variable just to get the error. * trie: add LeafKey to iterator, panic when not at leaf LeafKey is useful for callers that can't interpret Path. * trie: retry failed seek/peek in iterator Next Instead of failing iteration irrecoverably, make it so Next retries the pending seek or peek every time. Smaller changes in this commit make this easier to test: * The iterator previously returned from Next on encountering a hash node. This caused it to visit the same path twice. * Path returned nibbles with terminator symbol for valueNode attached to fullNode, but removed it for valueNode attached to shortNode. Now the terminator is always present. This makes Path unique to each node and simplifies Leaf. * trie: add Path to MissingNodeError The light client trie iterator needs to know the path of the node that's missing so it can retrieve a proof for it. NodeIterator.Path is not sufficient because it is updated when the node is resolved and actually visited by the iterator. Also remove unused fields. They were added a long time ago before we knew which fields would be needed for the light client.		7 years ago
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.gitignore	The great merge	11 years ago
database.go	Logger updates 3 (#3730)	8 years ago
database_test.go	cmd, eth, ethdb, node: prioritise chaindata for resources, bump cache	9 years ago
interface.go	ethdb: remove Flush	9 years ago
memory_database.go	trie: more node iterator improvements (#14615)	7 years ago