private Statement ProcessSwitchStatement(SwitchNode node)
{
Expression condition = _expressionBuilder.BuildExpression(node.Condition);
if (condition is MemberExpression) {
condition = _expressionBuilder.TransformMemberExpression((MemberExpression)condition);
}
SwitchStatement statement = new SwitchStatement(condition);
foreach (SwitchSectionNode switchSectionNode in node.Cases) {
SwitchGroup group = new SwitchGroup();
foreach (StatementNode caseNode in switchSectionNode.Labels) {
if (caseNode is CaseLabelNode) {
CaseLabelNode labelNode = (CaseLabelNode)caseNode;
Expression labelValue = _expressionBuilder.BuildExpression(labelNode.Value);
if (labelValue is MemberExpression) {
labelValue = _expressionBuilder.TransformMemberExpression((MemberExpression)labelValue);
}
group.AddCase(labelValue);
}
else {
Debug.Assert(caseNode is DefaultLabelNode);
group.AddDefaultCase();
}
}
foreach (StatementNode statementNode in switchSectionNode.Statements) {
Statement childStatement = BuildStatement(statementNode);
if (childStatement != null) {
group.AddStatement(childStatement);
}
}
statement.AddSwitchGroup(group);
}
return statement;
}
private static void GenerateSwitchStatement(ScriptGenerator generator, MemberSymbol symbol, SwitchStatement statement)
{
ScriptTextWriter writer = generator.Writer;
writer.WriteTrimmed("switch ");
writer.Write("(");
ExpressionGenerator.GenerateExpression(generator, symbol, statement.Condition);
writer.WriteTrimmed(") ");
writer.Write("{");
writer.WriteNewLine();
writer.Indent++;
foreach (SwitchGroup group in statement.Groups) {
if (group.Cases != null) {
foreach (Expression caseExpression in group.Cases) {
writer.Write("case ");
ExpressionGenerator.GenerateExpression(generator, symbol, caseExpression);
writer.Write(":");
writer.WriteNewLine();
}
}
if (group.IncludeDefault) {
writer.Write("default:");
writer.WriteNewLine();
}
writer.Indent++;
foreach (Statement childStatement in group.Statements) {
GenerateStatement(generator, symbol, childStatement);
}
writer.Indent--;
}
writer.Indent--;
writer.Write("}");
writer.WriteNewLine();
}