public void BasicTest()
{
var ast1 = new IdListNode(1, new IdNode(1, "x"), new IdNode(1, "y"));
var ast2 = new IdListNode(1, new IdNode(1, "X"), new IdNode(1, "y"));
Assert.That(ast1.Substitute(new IdNode(2, "x"), new IdNode(2, "X")), Is.EqualTo(ast2));
}
public void SubstituteKeepsOriginalTest()
{
ASTNode ast1 = new IdListNode(1, new IdNode(1, "x"), new IdNode(1, "y"));
ASTNode ast2 = new IdListNode(1, new IdNode(1, "X"), new IdNode(1, "y"));
Assert.That(ast1.Substitute(new IdNode(2, "x"), new IdNode(2, "X")), Is.EqualTo(ast2));
Assert.That(ast1, Is.EqualTo(new IdListNode(1, new IdNode(1, "x"), new IdNode(1, "y"))));
}
public void Visit(IdListNode node)
{
if (!isFirstEncounter)
{
foreach (var subnode in node)
{
var variableName = subnode.AnchorToken.Lexeme;
if (localScopeSymbolTable.Contains(variableName))
{
throw new SemanticError("Duplicated variable declaration: " + variableName, node[0].AnchorToken);
}
else
{
localScopeSymbolTable.Add(variableName);
}
foreach (var subnode_of_subnode /* owo */ in subnode)
{
Visit((dynamic)subnode_of_subnode);
}
}
}
}
public Node IdList()
{
var node = new IdListNode();
if (CurrentToken == TokenCategory.PARENTHESIS_CLOSE)
{
return(node);
}
node.Add(new IdentifierNode()
{
AnchorToken = Expect(TokenCategory.IDENTIFIER)
});
while (CurrentToken == TokenCategory.COMMA)
{
Expect(TokenCategory.COMMA);
node.Add(new IdentifierNode()
{
AnchorToken = Expect(TokenCategory.IDENTIFIER)
});
}
return(node);
}
public virtual TResult Visit(IdListNode node) => this.VisitChildren(node);
public override void CollectDataFromChildren() => IdListNode = FindFirstChildNodeByType <IdListNode>();
