public VclCompilerContext Compile(string filename)
{
var compilerContext = new VclCompilerContext();
CompileFile(filename, compilerContext);
return(compilerContext);
}
private void CompileFile(string filename, VclCompilerContext compilerContext)
{
// Track files we compile so we only compile each file once
// All files we bring in via include directive are added to queue
var seenFiles = new List <string>();
var filenameQueue = new Queue <string>();
filenameQueue.Enqueue(filename);
// Walk queue of files until it is empty
while (filenameQueue.Any())
{
// Retrieve next file from the queue and skip if already processed
filename = filenameQueue.Dequeue();
if (seenFiles.Contains(filename))
{
continue;
}
// Add to list of seen files and get file content
seenFiles.Add(filename);
var fileInfo = _fileProvider.GetFileInfo(filename);
using (var fileStream = fileInfo.CreateReadStream())
{
using (var reader = new StreamReader(fileStream))
{
// Read file content from reader
var vclContent = reader.ReadToEnd();
Debug.WriteLine(vclContent);
// Process include directives
var includeDirectiveCompiler = new VclCompileIncludes();
CompileAndVisit(vclContent, includeDirectiveCompiler);
// Queue any include directives we have found
foreach (var include in includeDirectiveCompiler.Files)
{
filenameQueue.Enqueue(include);
}
// Process all other content
CompileFileContent(vclContent, compilerContext);
}
}
}
}
private void CompileFileContent(string vclContent, VclCompilerContext compilerContext)
{
// Compile named probe entries
var probeCompiler = new VclCompileNamedProbeObjects(compilerContext);
CompileAndVisit(vclContent, probeCompiler);
// Ensure we have a default probe in the named probe entries
if (!compilerContext.ProbeReferences.ContainsKey("default"))
{
var fieldName = "default".SafeIdentifier("_probe");
compilerContext.ProbeReferences.Add(
"default", new CodeFieldReferenceExpression(
new CodeThisReferenceExpression(), fieldName));
// Create field and add to handler class
compilerContext.HandlerClass.Members.Add(
new CodeMemberField(typeof(VclProbe), fieldName)
{
Attributes = MemberAttributes.Private,
InitExpression =
new CodeObjectCreateExpression(
typeof(VclProbe),
new CodePrimitiveExpression("default"))
});
}
// Compile named backend entries
var backendCompiler = new VclCompileNamedBackendObjects(compilerContext);
CompileAndVisit(vclContent, backendCompiler);
// Compile named ACL entries
var aclCompiler = new VclCompileNamedAclObjects(compilerContext);
CompileAndVisit(vclContent, aclCompiler);
// TODO: Compile named director entries (if we bother to implement)
// Compile subroutines entries
var subCompiler = new VclCompileNamedSubroutine(compilerContext);
CompileAndVisit(vclContent, subCompiler);
}
public VclCompileNamedAclObjects(VclCompilerContext compilerContext)
: base(compilerContext)
{
}
protected VclBaseExpressionVisitor(VclCompilerContext compilerContext)
{
CompilerContext = compilerContext;
}
public VclCompileNamedBackendObjects(VclCompilerContext compilerContext)
: base(compilerContext)
{
}