SOLL 0.0.5 Release

0.0.5 (2020-01-18)

Language Features:

• Common:
  • Support big number literal (> uint64)
• Solidity:
  • Support built-in units:
    • ether, finney, szabo, wei
    • weeks, days, hours, minutes, seconds
  • Replace keccak256 and sha256 with sha3 for EVM backend.
  • Implement exponentiation operator.
  • Support this to access member functions in the same contract.
• Yul:
  • Support switch statement.
  • Support function definition.
  • Implement scoping logic and delay identifier lookup
  • Support alias operators:
    • slt -> lts256
    • sgt -> gts256
    • sdiv -> divs256
  • Handle memory relative mechanism:
    • Use global variable to record memory size.
    • Use __heap_size as memory offset.
    • Add helper functions to increase memory usage.
  • Implement built-in functions:
    • calldataload
    • mload, mstore, mstore8, msize
    • exp
• Diagnostic Tool:
  • Throw error messages for unimplemented features:
    • Constructor doesn’t support parameters. SOLL only accept constructor without any parameters.
    • SOLL doesn’t support array.push, array.pop
  • Terminate codegen when error occurs

Bugfixes:

• Hex number literal:
  • Support hex number literal (0x...)
• <address>.balance should return uint256 instead of uint128.
• Reduce some useless endian transformation.
• Fix mismatch EEI functions:
  • <address>.balance, <address>.send, blockhash