Vyper language features

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Denis Bogdanas edited this page Apr 9, 2018 · 5 revisions

Here we briefly enumerate the features of Vyper language. All of them are fully supported by K Vyper semantics. The semantics is based on the following commit of Vyper compiler: https://github.com/ethereum/vyper/commit/9fb7281cddfdea9174008860edbeedb062c53aa0

For more information please look at the Vyper documentation (currently work in progress):

https://github.com/ethereum/vyper

https://github.com/ethereum/vyper/blob/master/docs/types.rst

https://github.com/ethereum/vyper/blob/master/docs/built-in-functions.rst

Enumeration of Vyper features

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: