//[TestMethod]
public void RegionsAlgorithm1()
{
string programText = @"
i = 1;
j = 4;
a = 2;
while i < 20
{
i = i + 1;
j = j + 1;
if i > a
a = a + 5;
i = i + 1;
}
";
SyntaxNode root = ParserWrap.Parse(programText);
var threeAddressCode = ThreeAddressCodeGenerator.CreateAndVisit(root).Program;
Trace.WriteLine(threeAddressCode);
var basicBlocks = BasicBlocksGenerator.CreateBasicBlocks(threeAddressCode);
Trace.WriteLine(Environment.NewLine + "Базовые блоки");
Trace.WriteLine(basicBlocks);
Trace.WriteLine(Environment.NewLine + "Управляющий граф программы");
Graph g = new Graph(basicBlocks);
Trace.WriteLine(g);
Trace.WriteLine(Environment.NewLine + "Достигающие определения");
var reachingDefs = RegionsAlgorithm.Apply(g, new ExplicitTransferFunction(g));
var outDefs = reachingDefs.Out.Select(
pair => $"{pair.Key}: {string.Join(", ", pair.Value.Select(ex => ex.ToString()))}");
foreach (var outInfo in outDefs)
{
Trace.WriteLine(outInfo);
}
int startIndex = reachingDefs.Out.Keys.Min();
Assert.IsTrue(reachingDefs.Out[startIndex]
.SetEquals(
new SortedSet <CommandNumber>(new CommandNumber[]
{
new CommandNumber(startIndex, 0),
new CommandNumber(startIndex, 1),
new CommandNumber(startIndex, 2),
new CommandNumber(startIndex, 3)
})));
Assert.IsTrue(reachingDefs.Out[startIndex + 1]
.SetEquals(
new SortedSet <CommandNumber>(new CommandNumber[]
{
new CommandNumber(startIndex, 0),
new CommandNumber(startIndex, 1),
new CommandNumber(startIndex, 2),
new CommandNumber(startIndex, 3),
new CommandNumber(startIndex + 2, 0),
new CommandNumber(startIndex + 2, 2),
new CommandNumber(startIndex + 2, 3),
new CommandNumber(startIndex + 2, 4),
new CommandNumber(startIndex + 3, 0),
new CommandNumber(startIndex + 3, 1),
new CommandNumber(startIndex + 4, 1),
new CommandNumber(startIndex + 4, 2)
})));
Assert.IsTrue(reachingDefs.Out[startIndex + 2]
.SetEquals(
new SortedSet <CommandNumber>(new CommandNumber[]
{
new CommandNumber(startIndex, 2),
new CommandNumber(startIndex, 3),
new CommandNumber(startIndex + 2, 0),
new CommandNumber(startIndex + 2, 1),
new CommandNumber(startIndex + 2, 2),
new CommandNumber(startIndex + 2, 3),
new CommandNumber(startIndex + 2, 4),
new CommandNumber(startIndex + 3, 0),
new CommandNumber(startIndex + 3, 1),
new CommandNumber(startIndex + 4, 1)
})));
Assert.IsTrue(reachingDefs.Out[startIndex + 3]
.SetEquals(
new SortedSet <CommandNumber>(new CommandNumber[]
{
new CommandNumber(startIndex, 3),
new CommandNumber(startIndex + 2, 0),
new CommandNumber(startIndex + 2, 1),
new CommandNumber(startIndex + 2, 2),
new CommandNumber(startIndex + 2, 3),
new CommandNumber(startIndex + 2, 4),
new CommandNumber(startIndex + 3, 0),
new CommandNumber(startIndex + 3, 1),
new CommandNumber(startIndex + 4, 1)
})));
Assert.IsTrue(reachingDefs.Out[startIndex + 4]
.SetEquals(
new SortedSet <CommandNumber>(new CommandNumber[]
{
new CommandNumber(startIndex, 2),
new CommandNumber(startIndex, 3),
new CommandNumber(startIndex + 2, 0),
new CommandNumber(startIndex + 2, 2),
new CommandNumber(startIndex + 2, 3),
new CommandNumber(startIndex + 2, 4),
new CommandNumber(startIndex + 3, 0),
new CommandNumber(startIndex + 3, 1),
new CommandNumber(startIndex + 4, 1),
new CommandNumber(startIndex + 4, 2)
})));
Assert.IsTrue(reachingDefs.Out[startIndex + 5]
.SetEquals(
new SortedSet <CommandNumber>(new CommandNumber[]
{
new CommandNumber(startIndex, 0),
new CommandNumber(startIndex, 1),
new CommandNumber(startIndex, 2),
new CommandNumber(startIndex, 3),
new CommandNumber(startIndex + 2, 0),
new CommandNumber(startIndex + 2, 2),
new CommandNumber(startIndex + 2, 3),
new CommandNumber(startIndex + 2, 4),
new CommandNumber(startIndex + 3, 0),
new CommandNumber(startIndex + 3, 1),
new CommandNumber(startIndex + 4, 1),
new CommandNumber(startIndex + 4, 2)
})));
}
static void Main(string[] args)
{
/*string FileName = @"../../../a.txt";
* try
* {
* string text = File.ReadAllText(FileName);
* SyntaxNode root = ParserWrap.Parse(text);
* Console.WriteLine(root == null ? "Ошибка" : "Программа распознана");
* if (root != null)
* {
* var prettyPrintedProgram = PrettyPrinter.CreateAndVisit(root).FormattedCode;
* Console.WriteLine(prettyPrintedProgram);
* }
* }
* catch (FileNotFoundException)
* {
* Console.WriteLine("Файл {0} не найден", FileName);
* }
* catch (LexException e)
* {
* Console.WriteLine("Лексическая ошибка. " + e.Message);
* }
* catch (SyntaxException e)
* {
* Console.WriteLine("Синтаксическая ошибка. " + e.Message);
* }*/
string programText = @"
i = 1;
j = 4;
a = 2;
while i < 20
{
i = i + 1;
j = j + 1;
if i > a
a = a + 5;
i = i + 1;
}
";
SyntaxNode root = ParserWrap.Parse(programText);
var threeAddressCode = ThreeAddressCodeGenerator.CreateAndVisit(root).Program;
Console.WriteLine(threeAddressCode);
var basicBlocks = BasicBlocksGenerator.CreateBasicBlocks(threeAddressCode);
Console.WriteLine(Environment.NewLine + "Базовые блоки");
Console.WriteLine(basicBlocks);
Console.WriteLine(Environment.NewLine + "Управляющий граф программы");
Graph g = new Graph(basicBlocks);
Console.WriteLine(g);
Console.WriteLine(Environment.NewLine + "Достигающие определения");
var reachingDefs = RegionsAlgorithm.Apply(g, new ExplicitTransferFunction(g));
var outDefs = reachingDefs.Out.Select(
pair => $"{pair.Key}: {string.Join(", ", pair.Value.Select(ex => ex.ToString()))}");
foreach (var outInfo in outDefs)
{
Console.WriteLine(outInfo);
}
Console.ReadKey();
}
