/// <summary>
/// Crea la declaracio del metode 'start'
/// </summary>
/// <param name="machine">La maquina.</param>
/// <returns>La declaracio del metode.</returns>
///
private FunctionDeclaration MakeStartFunction(Machine machine)
{
StatementList bodyStatements = new StatementList();
if (machine.InitializeAction != null)
{
var statements = MakeActionStatements(machine.InitializeAction);
if (statements != null)
{
bodyStatements.AddRange(statements);
}
}
bodyStatements.Add(
new InvokeStatement(
new InvokeExpression(
new IdentifierExpression("initialize"),
new InvokeExpression(
new IdentifierExpression("getStateInstance"),
new IdentifierExpression(
String.Format("StateID::{0}", machine.Start.FullName))))));
return(new FunctionDeclaration(
"start",
AccessSpecifier.Public,
TypeIdentifier.FromName("void"),
null,
bodyStatements));
}
/// <summary>
/// Construeix la funcio de transicio.
/// </summary>
/// <param name="state">El estat.</param>
/// <param name="transitionName">El nom de la transicio.</param>
/// <returns>La funcio.</returns>
///
private FunctionDeclaration MakeOnTransitionFunction(State state, string transitionName, string contextClassName, string ownerClassName)
{
StatementList bodyStatements = new StatementList();
// Intruccio per recuperar el context.
//
bodyStatements.Add(
new InlineStatement(
String.Format("{0}* ctx = static_cast<{0}*>(getContext())", contextClassName)));
bodyStatements.Add(
new InlineStatement(
String.Format("{0}* owner = ctx->getOwner()", ownerClassName)));
foreach (Transition transition in state.Transitions)
{
if (transition.TransitionEvent.Name == transitionName)
{
StatementList trueBodyStatements = new StatementList();
trueBodyStatements.Add(new InvokeStatement(
new InvokeExpression(
new IdentifierExpression("ctx->beginTransition"))));
// Accio de transicio.
//
if (transition.Action != null)
{
trueBodyStatements.AddRange(MakeActionStatements(transition.Action));
}
trueBodyStatements.Add(new InvokeStatement(
new InvokeExpression(
new IdentifierExpression("ctx->endTransition"),
new InvokeExpression(
new IdentifierExpression("ctx->getStateInstance"),
new IdentifierExpression(
String.Format("Context::StateID::{0}", transition.NextState.Name))))));
Expression conditionExpr = new InlineExpression(transition.Guard == null ? "true" : transition.Guard.Expression);
bodyStatements.Add(new IfThenElseStatement(
conditionExpr,
new BlockStatement {
Statements = trueBodyStatements
},
null));
}
}
return(new FunctionDeclaration {
Access = AccessSpecifier.Public,
Implementation = ImplementationSpecifier.Override,
ReturnType = TypeIdentifier.FromName("void"),
Name = String.Format("transition_{0}", transitionName),
Body = new BlockStatement(bodyStatements),
});
}
