public string Transpile(CompilerContext context)
{
StringBuilder code = new StringBuilder();
code.AppendLine($"if({Condition.Transpile(context)}) {{ ");
code.AppendLine(ThenStmt.Transpile(context));
code.AppendLine("}");
if (ElseStmt != null)
{
code.AppendLine("else {");
code.AppendLine(ElseStmt.Transpile(context));
code.AppendLine("}");
}
return(code.ToString());
}
public Emit <Func <int> > EmitByteCode(CompilerContext context, Emit <Func <int> > emiter)
{
var thenLabel = emiter.DefineLabel();
var elseLabel = emiter.DefineLabel();
var endLabel = emiter.DefineLabel();
Condition.EmitByteCode(context, emiter);
emiter.BranchIfTrue(thenLabel);
emiter.Branch(elseLabel);
emiter.MarkLabel(thenLabel);
ThenStmt.EmitByteCode(context, emiter);
emiter.Branch(endLabel);
emiter.MarkLabel(elseLabel);
ElseStmt.EmitByteCode(context, emiter);
emiter.Branch(endLabel);
emiter.MarkLabel(endLabel);
return(emiter);
}
public string Dump(string tab)
{
StringBuilder dmp = new StringBuilder();
dmp.AppendLine($"{tab}(IF");
dmp.AppendLine($"{tab+"\t"}(COND");
dmp.AppendLine(Condition.Dump("\t\t" + tab));
dmp.AppendLine($"{tab + "\t"})");
dmp.AppendLine($"{tab + "\t"}(THEN");
dmp.AppendLine(ThenStmt.Dump("\t\t" + tab));
dmp.AppendLine($"{tab})");
dmp.AppendLine($"{tab + "\t"}(ELSE");
dmp.AppendLine(ElseStmt.Dump("\t\t" + tab));
dmp.AppendLine($"{tab + "\t"})");
dmp.AppendLine($"{tab})");
return(dmp.ToString());
}
