private SymbolTable GetScope(ICodeUnit ast)
{
var scanner = new ScopeScanner();
ast.Accept(scanner);
return(scanner.SymbolTable);
}
private static void Assert(ICodeUnit ast, int expectedRefCount)
{
var sut = new ReferenceScanner();
ast.Accept(sut);
sut.References.Count.Should().Be(expectedRefCount);
}
public void AssignNames(ICodeUnit unit)
{
var scanner = new ReferenceScanner();
unit.Accept(scanner);
var references = scanner.References.Distinct();
AssignIdentifiersToImplicityReferences(references);
}
public IEnumerable <IntermediateCode> Generate(ICodeUnit codeUnit)
{
implicitReferenceCount = 0;
labelCount = 0;
var codeGeneratingVisitor = new CodeUnitGeneratingVisitor();
codeUnit.Accept(codeGeneratingVisitor);
var code = codeGeneratingVisitor.Code;
AssignNames(code.ToList());
return(codeGeneratingVisitor.Code);
}
private static void AssertScope(ICodeUnit expressionNode, SymbolTable expectedScope)
{
var sut = new ScopeScanner();
var nameAssigner = new ImplicitReferenceNameAssigner();
nameAssigner.AssignNames(expressionNode);
expressionNode.Accept(sut);
var actual = sut.SymbolTable;
actual.WithDeepEqual(expectedScope)
.IgnoreProperty(r => r.Name == "Parent")
.Assert();
}