cerc-io/solidity
16
0
Fork 0
mirror of https://github.com/ethereum/solidity synced 2023-10-03 13:03:40 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

LLL: add UNSET to remove a variable

Browse Source
This commit is contained in:
Alex Beregszaszi 2017-07-04 19:50:51 +02:00
parent 2c6e1888eb
commit dcfa5f4ea0
1 changed files with 10 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
liblll/CodeFragment.cpp
View File

@ -259,6 +259,7 @@ void CodeFragment::constructOperation(sp::utree const& _t, CompilerState& _s)
}
else if (us == "SET")
{
// TODO: move this to be a stack variable (and not a memory variable)
if (_t.size() != 3)
error<IncorrectParameterCount>(us);
int c = 0;
@ -268,6 +269,15 @@ void CodeFragment::constructOperation(sp::utree const& _t, CompilerState& _s)
m_asm.append((u256)varAddress(firstAsString(), true));
m_asm.append(Instruction::MSTORE);
}
else if (us == "UNSET")
{
// TODO: this doesn't actually free up anything, since it is a memory variable (see "SET")
if (_t.size() != 2)
error<IncorrectParameterCount>();
auto it = _s.vars.find(firstAsString());
if (it != _s.vars.end())
_s.vars.erase(it);
}
else if (us == "GET")
{
if (_t.size() != 2)