public void BlockSurroundedIf()
{
const int COUNT = 7;
Parser parser = new Parser(Path.Combine(AppDomain.CurrentDomain.BaseDirectory, @"Data\BlockSurroundedIf.gngr"));
parser.parse();
ASTVisitor astv = new ASTVisitor(parser.ast);
TestVisitor tv = new TestVisitor(astv.cfg);
// create new instance to fool compiler
CFGEntry entry = new CFGEntry();
CFGBasicBlock b1 = new CFGBasicBlock();
CFGBasicBlock b2 = new CFGBasicBlock();
CFGBasicBlock b3 = new CFGBasicBlock();
CFGBasicBlock b4 = new CFGBasicBlock();
CFGBasicBlock b5 = new CFGBasicBlock();
for (int i = 0; i < COUNT; i++)
{
switch (i)
{
case 0:
entry = (CFGEntry)tv.visitedNodes[i];
Assert.IsInstanceOfType(entry, typeof(CFGEntry), $"{i}/1");
break;
case 1:
b1 = (CFGBasicBlock)tv.visitedNodes[i];
Assert.IsInstanceOfType(b1, typeof(CFGBasicBlock), $"{i}/1");
Assert.AreEqual(entry, b1.parents[0], $"{i}/1");
break;
case 2:
b2 = (CFGBasicBlock)tv.visitedNodes[i];
Assert.IsInstanceOfType(b2, typeof(CFGBasicBlock), $"{i}/1");
Assert.AreEqual(b1, b2.parents[0], $"{i}/2");
break;
case 3:
b3 = (CFGBasicBlock)tv.visitedNodes[i];
Assert.IsInstanceOfType(b3, typeof(CFGBasicBlock), $"{i}/1");
Assert.AreEqual(b2, b3.parents[0], $"{i}/2");
break;
case 4:
b4 = (CFGBasicBlock)tv.visitedNodes[i];
Assert.IsInstanceOfType(b4, typeof(CFGBasicBlock), $"{i}/1");
Assert.AreEqual(b3, b4.parents[0], $"{i}/2");
Assert.AreEqual(b2, b4.parents[1], $"{i}/3");
break;
case 5:
b5 = (CFGBasicBlock)tv.visitedNodes[i];
Assert.IsInstanceOfType(b5, typeof(CFGBasicBlock), $"{i}/1");
Assert.AreEqual(b4, b5.parents[0], $"{i}/2");
Assert.AreEqual(b1, b5.parents[1], $"{i}/3");
break;
case 6:
CFGExit exit = (CFGExit)tv.visitedNodes[i];
Assert.IsInstanceOfType(exit, typeof(CFGExit), $"{i}/1");
Assert.AreEqual(b5, exit.parents[0], $"{i}/2");
break;
}
}
}
public ASTVisitor(StatementList ast)
{
this.linkNodes = new List <Node>();
this._cfg = new CFGEntry();
this.currentNode = this._cfg;
ast.accept(this);
CFGExit exit = new CFGExit();
if (this.linkNodes.Count > 0)
{
this.currentNode = new CFGExit();
linkParentNodes();
}
else
{
this.currentNode.add(exit);
}
}
public void visitEntry(CFGEntry s)
{
visitCollection(s);
}
public TestVisitor(CFGEntry cfg)
{
this.visitedNodes = new List<Node>();
cfg.accept(this);
}