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Merge pull request #1294 from zigguratt/lll-until-support

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LLL: Add support for 'until', the inverse of 'while'.
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chriseth 2016-10-26 16:18:25 +02:00 committed by GitHub
commit 410275354e
1 changed files with 3 additions and 2 deletions
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5
liblll/CodeFragment.cpp
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@ -472,14 +472,15 @@ void CodeFragment::constructOperation(sp::utree const& _t, CompilerState& _s)
m_asm << end.tag();
m_asm.donePaths();
}
else if (us == "WHILE")
else if (us == "WHILE" || us == "UNTIL")
{
requireSize(2);
requireDeposit(0, 1);
auto begin = m_asm.append();
m_asm.append(code[0].m_asm);
m_asm.append(Instruction::ISZERO);
if (us == "WHILE")
m_asm.append(Instruction::ISZERO);
auto end = m_asm.appendJumpI();
m_asm.append(code[1].m_asm, 0);
m_asm.appendJump(begin);