public override BoundNode VisitPatternSwitchStatement(BoundPatternSwitchStatement node)
{
_factory.Syntax = node.Syntax;
var pslr = new PatternSwitchLocalRewriter(this, node);
var expression = VisitExpression(node.Expression);
// EnC: We need to insert a hidden sequence point to handle function remapping in case
// the containing method is edited while methods invoked in the expression are being executed.
if (!node.WasCompilerGenerated && this.Instrument)
{
expression = _instrumenter.InstrumentSwitchStatementExpression(node, expression, _factory);
}
var result = ArrayBuilder <BoundStatement> .GetInstance();
// output the decision tree part
pslr.LowerDecisionTree(expression, node.DecisionTree, result);
// if the endpoint is reachable, we exit the switch
if (!node.DecisionTree.MatchIsComplete)
{
result.Add(_factory.Goto(node.BreakLabel));
}
// at this point the end of result is unreachable.
// output the sections of code
foreach (var section in node.SwitchSections)
{
// Start with the part of the decision tree that is in scope of the section variables.
// Its endpoint is not reachable (it jumps back into the decision tree code).
var sectionBuilder = pslr.SwitchSections[section];
// Add labels corresponding to the labels of the switch section.
foreach (var label in section.SwitchLabels)
{
sectionBuilder.Add(_factory.Label(label.Label));
}
// Add the translated body of the switch section
sectionBuilder.AddRange(VisitList(section.Statements));
sectionBuilder.Add(_factory.Goto(node.BreakLabel));
result.Add(_factory.Block(section.Locals, sectionBuilder.ToImmutableAndFree()));
// at this point the end of result is unreachable.
}
result.Add(_factory.Label(node.BreakLabel));
BoundStatement translatedSwitch = _factory.Block(pslr.DeclaredTemps.ToImmutableArray().Concat(node.InnerLocals), node.InnerLocalFunctions, result.ToImmutableAndFree());
// Only add instrumentation (such as a sequence point) if the node is not compiler-generated.
if (!node.WasCompilerGenerated && this.Instrument)
{
translatedSwitch = _instrumenter.InstrumentPatternSwitchStatement(node, translatedSwitch);
}
return(translatedSwitch);
}
public override BoundNode VisitPatternSwitchStatement(BoundPatternSwitchStatement node)
{
_factory.Syntax = node.Syntax;
var pslr = new PatternSwitchLocalRewriter(this, node);
var expression = VisitExpression(node.Expression);
var result = ArrayBuilder<BoundStatement>.GetInstance();
// output the decision tree part
pslr.LowerDecisionTree(expression, node.DecisionTree, result);
// if the endpoint is reachable, we exit the switch
if (!node.DecisionTree.MatchIsComplete)
{
result.Add(_factory.Goto(node.BreakLabel));
}
// at this point the end of result is unreachable.
// output the sections of code
foreach (var section in node.SwitchSections)
{
// Start with the part of the decision tree that is in scope of the section variables.
// Its endpoint is not reachable (it jumps back into the decision tree code).
var sectionBuilder = pslr.SwitchSections[section];
// Add labels corresponding to the labels of the switch section.
foreach (var label in section.SwitchLabels)
{
sectionBuilder.Add(_factory.Label(label.Label));
}
// Add the translated body of the switch section
sectionBuilder.AddRange(VisitList(section.Statements));
sectionBuilder.Add(_factory.Goto(node.BreakLabel));
result.Add(_factory.Block(section.Locals, sectionBuilder.ToImmutableAndFree()));
// at this point the end of result is unreachable.
}
result.Add(_factory.Label(node.BreakLabel));
BoundStatement translatedSwitch = _factory.Block(pslr.DeclaredTemps.ToImmutableArray().Concat(node.InnerLocals), node.InnerLocalFunctions, result.ToImmutableAndFree());
// Create the sequence point if generating debug info and
// node is not compiler generated
if (this.Instrument && !node.WasCompilerGenerated)
{
translatedSwitch = _instrumenter.InstrumentBoundPatternSwitchStatement(node, translatedSwitch);
}
return translatedSwitch;
}
public override BoundNode VisitPatternSwitchStatement(BoundPatternSwitchStatement node)
{
_factory.Syntax = node.Syntax;
var pslr = new PatternSwitchLocalRewriter(this, node);
var expression = VisitExpression(node.Expression);
var result = ArrayBuilder <BoundStatement> .GetInstance();
// output the decision tree part
pslr.LowerDecisionTree(expression, node.DecisionTree, result);
// if the endpoint is reachable, we exit the switch
if (!node.DecisionTree.MatchIsComplete)
{
result.Add(_factory.Goto(node.BreakLabel));
}
// at this point the end of result is unreachable.
// output the sections of code
foreach (var section in node.SwitchSections)
{
// Start with the part of the decision tree that is in scope of the section variables.
// Its endpoint is not reachable (it jumps back into the decision tree code).
var sectionBuilder = pslr.SwitchSections[section];
// Add labels corresponding to the labels of the switch section.
foreach (var label in section.SwitchLabels)
{
sectionBuilder.Add(_factory.Label(label.Label));
}
// Add the translated body of the switch section
sectionBuilder.AddRange(VisitList(section.Statements));
sectionBuilder.Add(_factory.Goto(node.BreakLabel));
result.Add(_factory.Block(section.Locals, sectionBuilder.ToImmutableAndFree()));
// at this point the end of result is unreachable.
}
result.Add(_factory.Label(node.BreakLabel));
BoundStatement translatedSwitch = _factory.Block(pslr.DeclaredTemps.ToImmutableArray().Concat(node.InnerLocals), node.InnerLocalFunctions, result.ToImmutableAndFree());
// Create the sequence point if generating debug info and
// node is not compiler generated
if (this.Instrument && !node.WasCompilerGenerated)
{
translatedSwitch = _instrumenter.InstrumentBoundPatternSwitchStatement(node, translatedSwitch);
}
return(translatedSwitch);
}