Vyper language features

Here we briefly enumerate the features of Vyper language.

Contract members:

• functions
• global variables
• events
• contract interfaces

Types:

• int128
• uint256
• decimal
• bytes32
• address
• bool
• unit types
• bytes[n] - variable-size byte arrays
• list
• struct
• tuple
• map

Statements:

• variable declaration: a: int128 or a: int128 = e
• assignment: a = e
• augmented assignment: a += e
• if
• for in range: for i in in range(rounds) or for i in in range(start, end)
• for in list: `for elem in [1, 2, 3]'
• break
• continue
• return
• assert
• throw
• log - event logging
• del - deleting elements from a map
• function calls
• external contract calls

Binary operators: + - * / % **

Unary operators: ! -

Boolean operators: and or

Comparison operators: < <= > >= == != in

Reserved expressions:

• balance
• codesize
• is_contract
• msg.sender
• msg.value
• msg.gas
• block.difficulty
• block.timestamp
• block.coinbase
• block.number
• block.prevhash

Functions:

• floor
• ceil
• decimal
• as_unitless_number
• convert
• slice
• len
• concat
• keccak256
• method_id
• ``
• ``
• ``
• ``
• ``
• ``
• ``
• ``
• ``
• ``
• ``
• ``
• ``