public void BeforeCompile(BeforeCompileContext context)
{
context.Diagnostics.Add(
Diagnostic.Create(
new DiagnosticDescriptor("TEST", "TEST", "Hello meta programming world!", "TEST", DiagnosticSeverity.Info, true),
Location.None));
context.Compilation = context.Compilation.AddSyntaxTrees(
SyntaxFactory.ParseSyntaxTree(@"
namespace Test.Module
{
public static class Extensions
{
public static T Dump<T>(this T i)
{
if (i != null)
{
System.Console.WriteLine(i);
}
return i;
}
}
}
"));
}
public void BeforeCompile(BeforeCompileContext context)
{
// NOTE: in case you need to debug your compilation module do:
// System.Diagnostics.Debugger.Launch();
foreach (var syntaxTree in context.Compilation.SyntaxTrees)
{
var model = context.Compilation.GetSemanticModel(syntaxTree);
var rewriter = new StringBuilderInterpolationOptimizer(model);
var rootNode = syntaxTree.GetRoot();
var rewritten = rewriter.Visit(rootNode);
if (rootNode != rewritten)
{
context.Compilation = context.Compilation.ReplaceSyntaxTree(
syntaxTree,
syntaxTree.WithRootAndOptions(rewritten, syntaxTree.Options));
}
}
}
public void Before(BeforeCompileContext context)
{
Apply(context, x => BeforeCompileContext = x, m => m.BeforeCompile);
}
public void BeforeCompile(BeforeCompileContext context)
{
foreach (var module in modules)
module.BeforeCompile(context);
}