Jordan Andrews

Progress on putting ECRecover functionality into contracts

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Ethereum contracts increasingly use the ECRecover opcode which returns the address of the private key that signed a message. This PR introduces that functionality and was just starting to test...

Need to test that it is seamless to enable this in contracts

* Enable auto kicking * Subscriptions in correct order * Check whether it happened in any previous polls * Formatting niceties

[SC] Sct tool should validate parameter types on the spot

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When sending requests via the Sct tool, the string for 'address' is not validated to be correct before being sent. May be applicable for other fields so worth checking when...

[SC] Smart contracts shouldn't compile via the Sct tool if their constructor is private or protected.

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Contracts can't be instantiated if their constructors aren't public, so we need to give users an error if they try to deploy a contract with these characteristics

Currently the `Transaction` class doesn't contain any easy way to access the fees and input amounts, even when it has been calculated or accessed previously. Instead you must call `GetFee()`...