public static void ParseEnd(ToffeeGenerator generator, string[] args)
{
// Could we even be in an if block?
if (generator.Stack.Count < 2)
{
throw new ToffeeGeneratorException("Encountered 'endif' command without being inside an if block.");
}
// Are we in an if block?
if (generator.Stack.Peek().Name != "if")
{
throw new ToffeeGeneratorException("Encountered 'endif' command instead of 'endpattern'");
}
// Get the last stack handle (The If block)
ToffeeGeneratorStackFrame handle = generator.Stack.Pop();
// Get the If command
IfCommand command = (IfCommand)handle.State;
// Was this IfCommand created via an ElseIf?
// Then, we need to end the Else that was before this If
if (command.WasElseIf)
{
ParseEnd(generator, null);
}
generator.Log("Exit If Block (Condition: {0}, TrueSize: {1}, FalseSize: {2})",
command.Define, command.TrueCode.Count, command.FalseCode.Count);
}
public static void ParseElse(ToffeeGenerator generator, string[] args)
{
// Could we even be in an if block?
if (generator.Stack.Count < 2)
{
throw new ToffeeGeneratorException("Encountered 'else' command without being inside an if block.");
}
// Are we in an if block?
if (generator.Stack.Peek().Name != "if")
{
throw new ToffeeGeneratorException("Encountered 'else' command instead of 'endpattern'");
}
// Get the last stack handle (The If block)
ToffeeGeneratorStackFrame handle = generator.Stack.Pop();
// Create an else handle (This will be the Else block)
ToffeeGeneratorStackFrame elseHandle = new ToffeeGeneratorStackFrame("if");
// Set the state of the Else handle to the same state as the If handle
// (They are both part of the same IfCommand)
elseHandle.State = handle.State;
// Get the original If command, and set the ConditionFalse to the Else handle's commands
((IfCommand)elseHandle.State).FalseCode = elseHandle.Commands;
// Push the else handle onto the stack
generator.Stack.Push(elseHandle);
generator.Log("Exit If, Enter Else Block (Condition: {0})", ((IfCommand)handle.State).Define);
}
public static void ParseEnd(ToffeeGenerator generator, string[] args)
{
if (generator.Stack.Count < 2)
{
throw new ToffeeGeneratorException("Encountered 'endpattern' command without being inside a pattern.");
}
if (generator.Stack.Peek().Name == "if")
{
throw new ToffeeGeneratorException("Encountered 'endpattern' command instead of 'endif'");
}
ToffeeGeneratorStackFrame handle = generator.Stack.Pop();
generator.Log("Exit Pattern Block (Name: {0})", handle.Name);
generator.AddPattern(handle.Name, handle.Commands);
}
public static void ParseNot(ToffeeGenerator generator, string[] args)
{
// Do we have the correct arguments?
if (args.Length != 1)
{
throw new ToffeeGeneratorException("Invalid number of arguments for 'if' command.");
}
IfCommand command = new IfCommand(args[0], true);
ToffeeGeneratorStackFrame handle = new ToffeeGeneratorStackFrame("if");
handle.State = command;
command.TrueCode = handle.Commands;
generator.AddCommand(command);
generator.Stack.Push(handle);
generator.Log("Enter If Block (Condition: {0})", args[0]);
}
public static void ParseElseIf(ToffeeGenerator generator, string[] args)
{
// Do we have the correct arguments?
if (args.Length != 1)
{
throw new ToffeeGeneratorException("Invalid number of arguments for 'elseif' command.");
}
// Could we even be in an if block?
if (generator.Stack.Count < 2)
{
throw new ToffeeGeneratorException("Encountered 'elseif' command without being inside an if block.");
}
// Are we in an if block?
if (generator.Stack.Peek().Name != "if")
{
throw new ToffeeGeneratorException("Encountered 'elseif' command instead of 'endpattern'");
}
// Get the last stack handle (The If block)
ToffeeGeneratorStackFrame handle = generator.Stack.Pop();
// Create an else handle (This will be the ElseIf block)
ToffeeGeneratorStackFrame elseHandle = new ToffeeGeneratorStackFrame("if");
// Set the state of the Else handle to the same state as the If handle
// (They are both part of the same IfCommand)
elseHandle.State = handle.State;
// Get the original If command, and set the ConditionFalse to the Else handle's commands
IfCommand command = (IfCommand)handle.State;
command.FalseCode = elseHandle.Commands;
// Push the else handle onto the stack
generator.Stack.Push(elseHandle);
generator.Log("Exit If, Enter Else Block (Condition: {0})", ((IfCommand)handle.State).Define);
// Parse the "elseif" as if it was an "if"
// The IfCommand will be placed into the Else block for this If, creating an Else If
Parse(generator, args);
// The IfCommand that was just added onto the stack has created via ElseIf
((IfCommand)generator.Stack.Peek().State).WasElseIf = true;
}
