internal Print(PrintStatement stmt)
: this() {
if (stmt.Destination != null)
_dest = Convert(stmt.Destination);
_values = PythonOps.MakeEmptyList(stmt.Expressions.Count);
foreach (Compiler.Ast.Expression expr in stmt.Expressions)
_values.Add(Convert(expr));
_nl = !stmt.TrailingComma;
}
//print_stmt: 'print' ( [ expression (',' expression)* [','] ] | '>>' expression [ (',' expression)+ [','] ] )
private PrintStatement ParsePrintStmt() {
Eat(TokenKind.KeywordPrint);
var start = GetStart();
Expression dest = null;
PrintStatement ret;
bool needNonEmptyTestList = false;
if (MaybeEat(TokenKind.RightShift)) {
dest = ParseExpression();
if (MaybeEat(TokenKind.Comma)) {
needNonEmptyTestList = true;
} else {
ret = new PrintStatement(dest, new Expression[0], false);
ret.SetLoc(_globalParent, start, GetEnd());
return ret;
}
}
bool trailingComma;
List<Expression> l = ParseExpressionList(out trailingComma);
if (needNonEmptyTestList && l.Count == 0) {
ReportSyntaxError(_lookahead);
}
Expression[] exprs = l.ToArray();
ret = new PrintStatement(dest, exprs, trailingComma);
ret.SetLoc(_globalParent, start, GetEnd());
return ret;
}
public override void PostWalk(PrintStatement node)
{
List<string> statements = new List<string>();
for (int i = 0; i < node.Expressions.Count; i++)
{
statements.Add(Content());
}
statements.Reverse();
Content("print([{0}])", String.Join(", ", statements));
CommonPostWalk(node);
}
public override bool Walk(PrintStatement node)
{
node.Parent = _currentScope;
return base.Walk(node);
}
// PrintStatement
public bool Walk(PrintStatement node)
{
return Process(node);
}
public override bool Walk(PrintStatement node)
{
CommonWalk(node);
return true;
}
// PrintStatement
public override bool Walk(PrintStatement node)
{
node.Parent = _currentScope;
return(base.Walk(node));
}
public void PostWalk(PrintStatement node)
{
PostProcess(node);
}
public override bool Walk(PrintStatement node)
{
Emit(node); return false;
}
public virtual void PostWalk(PrintStatement node)
{
}
// PrintStatement
public virtual bool Walk(PrintStatement node)
{
return true;
}
public void Visit(PyAst.PrintStatement node) => throw CreateNotImplementedEx();
public override bool Walk(PrintStatement node)
{
writer.WriteLine("PrintStatement");
return base.Walk(node);
}