internal VisualScriptCompilerContext(VisualScriptAsset asset, Method method, Logger log)
{
// Create first block
this.asset = asset;
this.method = method;
Log = log;
}
public static VisualScriptCompilerResult Generate(VisualScriptAsset visualScriptAsset, VisualScriptCompilerOptions options)
{
var result = new VisualScriptCompilerResult();
var members = new List <MemberDeclarationSyntax>();
var className = options.Class;
// Generate variables
foreach (var variable in visualScriptAsset.Properties)
{
var variableType = variable.Type;
if (variableType == null)
{
result.Error($"Variable {variable.Name} has no type, using \"object\" instead.");
variableType = "object";
}
var field =
FieldDeclaration(
VariableDeclaration(
ParseTypeName(variableType))
.WithVariables(
SingletonSeparatedList(
VariableDeclarator(
Identifier(variable.Name)))))
.WithModifiers(
TokenList(
Token(SyntaxKind.PublicKeyword)));
members.Add(field);
}
// Process each function
foreach (var method in visualScriptAsset.Methods)
{
var functionStartBlock = method.Blocks.Values.OfType <FunctionStartBlock>().FirstOrDefault();
if (functionStartBlock == null)
{
continue;
}
var context = new VisualScriptCompilerContext(visualScriptAsset, method, result);
context.ProcessEntryBlock(functionStartBlock);
var methodModifiers = new SyntaxTokenList();
methodModifiers = ConvertAccessibility(methodModifiers, method.Accessibility);
methodModifiers = ConvertVirtualModifier(methodModifiers, method.VirtualModifier);
if (method.IsStatic)
{
methodModifiers = methodModifiers.Add(Token(SyntaxKind.StaticKeyword));
}
var parameters = new List <SyntaxNodeOrToken>();
foreach (var parameter in method.Parameters)
{
if (parameters.Count > 0)
{
parameters.Add(Token(SyntaxKind.CommaToken));
}
parameters.Add(
Parameter(Identifier(parameter.Name))
.WithModifiers(ConvertRefKind(parameter.RefKind))
.WithType(ParseTypeName(parameter.Type)));
}
// Generate method
var methodDeclaration =
MethodDeclaration(
method.ReturnType == "void" ? PredefinedType(Token(SyntaxKind.VoidKeyword)) : ParseTypeName(method.ReturnType),
Identifier(method.Name))
.WithModifiers(methodModifiers)
.WithParameterList(ParameterList(
SeparatedList <ParameterSyntax>(parameters)))
.WithBody(
Block(context.Blocks.SelectMany(x => x.Statements)))
.WithAdditionalAnnotations(GenerateAnnotation(method));
members.Add(methodDeclaration);
}
// Generate class
var classModifiers = new SyntaxTokenList();
classModifiers = ConvertAccessibility(classModifiers, visualScriptAsset.Accessibility).Add(Token(SyntaxKind.PartialKeyword));
if (visualScriptAsset.IsStatic)
{
classModifiers = classModifiers.Add(Token(SyntaxKind.StaticKeyword));
}
var @class =
ClassDeclaration(className)
.WithMembers(List(members))
.WithModifiers(classModifiers);
if (visualScriptAsset.BaseType != null)
{
@class = @class.WithBaseList(BaseList(SingletonSeparatedList <BaseTypeSyntax>(SimpleBaseType(IdentifierName(visualScriptAsset.BaseType)))));
}
// Generate namespace around class (if any)
MemberDeclarationSyntax namespaceOrClass = @class;
var @namespace = !string.IsNullOrEmpty(visualScriptAsset.Namespace) ? visualScriptAsset.Namespace : options.DefaultNamespace;
if (@namespace != null)
{
namespaceOrClass =
NamespaceDeclaration(
IdentifierName(@namespace))
.WithMembers(
SingletonList <MemberDeclarationSyntax>(@class));
}
// Generate compilation unit
var compilationUnit =
CompilationUnit()
.WithUsings(
List(visualScriptAsset.UsingDirectives.Select(x =>
UsingDirective(
IdentifierName(x)))))
.WithMembers(
SingletonList(namespaceOrClass))
.NormalizeWhitespace();
// Generate actual source code
result.GeneratedSource = compilationUnit.ToFullString();
result.SyntaxTree = SyntaxTree(compilationUnit, path: options.FilePath ?? string.Empty);
return(result);
}
