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| author | Alex Beregszaszi <alex@rtfs.hu> | 2017-07-05 01:50:51 +0800 |
|---|---|---|
| committer | Alex Beregszaszi <alex@rtfs.hu> | 2018-11-21 23:37:11 +0800 |
| commit | dcfa5f4ea02f785a0354f145a78f039da25ca485 (patch) | |
| tree | 41628d59e29ccb15fb88f3377d44fa3a3fc47ee8 | |
| parent | 2c6e1888ebf5d4b7369d3c0a350218583ae1ada5 (diff) | |
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LLL: add UNSET to remove a variable
| -rw-r--r-- | liblll/CodeFragment.cpp | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/liblll/CodeFragment.cpp b/liblll/CodeFragment.cpp index f37cb8b9..c6ab86f5 100644 --- a/liblll/CodeFragment.cpp +++ b/liblll/CodeFragment.cpp @@ -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) |