public static void EmitIf(IfStatement ifst, List<ILInstuction> il)
{
ILDummy end = new ILDummy();
end.Line = GetLabel();
foreach (var ic in ifst.Clauses)
{
ILBranch branch = new ILBranch();
ILDummy blockBegin = new ILDummy();
ILDummy blockEnd = new ILDummy();
branch.Line = GetLabel();
blockBegin.Line = GetLabel();
blockEnd.Line = GetLabel();
ILGoto gotoEnd = new ILGoto(end.Line);
gotoEnd.Line = GetLabel();
branch.SuccessJump = blockBegin.Line;
branch.FailJump = blockEnd.Line;
branch.Condition = ConstructILExpression(ic.Condition);
il.Add(branch);
il.Add(blockBegin);
EmitStatementList(ic.Statements, il);
il.Add(gotoEnd);
il.Add(blockEnd);
}
if (ifst.AlternativeStatements != null)
{
EmitStatementList(ifst.AlternativeStatements, il);
}
il.Add(end);
}
public static void _EmitIf(IfStatement ifst, List<ILInstuction> il)
{
ILDummy end = new ILDummy();
end.Line = GetLabel();
foreach (var ic in ifst.Clauses)
{
ILBranch branch = new ILBranch();
ILDummy blockBegin = new ILDummy();
ILDummy blockEnd = new ILDummy();
branch.Line = GetLabel();
blockBegin.Line = GetLabel();
blockEnd.Line = GetLabel();
ILGoto gotoEnd = new ILGoto(end.Line);
gotoEnd.Line = GetLabel();
branch.SuccessJump = blockBegin.Line;
branch.FailJump = blockEnd.Line;
var ifConditionVariable = _EmitExpression(ic.Condition, il);
CurrentFunction.AddLocal(ifConditionVariable, ic.Condition.ResultType);
branch.Condition = _constructVariableAccess(ifConditionVariable);
il.Add(branch);
il.Add(blockBegin);
_EmitStatementList(ic.Statements, il);
il.Add(gotoEnd);
il.Add(blockEnd);
}
if (ifst.AlternativeStatements != null)
{
_EmitStatementList(ifst.AlternativeStatements, il);
}
il.Add(end);
}
