initial code suggestion support for vyper and circom

[STetsing]

Introducing code suggestion for Vyper and circom

How to test

Follow the steps below, simply delete some variables and trigger the code suggestion.

-> Vyper

• create a test.vy file in the file explorer
• paste this sample code in the editor

#pragma version >0.3.10

# Open Auction

# Auction params
# Beneficiary receives money from the highest bidder
beneficiary: public(address)
auctionStart: public(uint256)
auctionEnd: public(uint256)

# Current state of auction
highestBidder: public(address)
highestBid: public(uint256)

# Set to true at the end, disallows any change
ended: public(bool)

# Keep track of refunded bids so we can follow the withdraw pattern
pendingReturns: public(HashMap[address, uint256])

# Create a simple auction with `_auction_start` and
# `_bidding_time` seconds bidding time on behalf of the
# beneficiary address `_beneficiary`.
@deploy
def __init__(_beneficiary: address, _auction_start: uint256, _bidding_time: uint256):
    self.beneficiary = _beneficiary
    self.auctionStart = _auction_start  # auction start time can be in the past, present or future
    self.auctionEnd = self.auctionStart + _bidding_time
    assert block.timestamp < self.auctionEnd # auction end time should be in the future

-> Circom

• create a test.circom file in the file explorer
• paste this sample code in the editor

pragma circom 2.0.0;

/*This circuit template checks that c is the multiplication of a and b.*/  

template Multiplier2 () {  

   // Declaration of signals.  
   signal input a;  
   signal input b;  
   signal output c;  

   // Constraints.  
   c <== a * b;  
}

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[joeizang]

vyper is a lot like python "with types". so some of the symbols might not be required.