public static TryFlowResult Analyze(Statement statement)
{
if (statement == null)
{
return(new TryFlowResult());
}
else
{
// find it now.
TryFlowAnalyzer tfa = new TryFlowAnalyzer();
tfa.WalkNode(statement);
Debug.Assert(tfa._nesting == 0);
Debug.Assert(tfa._switch == 0);
return(tfa._result);
}
}
public override void Emit(CodeGen cg)
{
// Codegen is affected by presence/absence of loop control statements
// (break/continue) or return/yield statement in finally clause
TryFlowResult flow = TryFlowAnalyzer.Analyze(FinallyStatement);
//cg.EmitPosition(Start, _header);
// If there's a yield anywhere, go for a complex codegen
if (YieldInBlock(_tryYields) || _yieldInCatch || YieldInBlock(_finallyYields))
{
EmitGeneratorTry(cg, flow);
}
else
{
EmitSimpleTry(cg, flow);
}
}
public static TryFlowResult Analyze(Statement statement)
{
if (statement == null) {
return new TryFlowResult();
} else {
// find it now.
TryFlowAnalyzer tfa = new TryFlowAnalyzer();
tfa.WalkNode(statement);
Debug.Assert(tfa._nesting == 0);
Debug.Assert(tfa._switch == 0);
return tfa._result;
}
}