public override void CodeGen(OutputContext output)
{
output.Print("if");
output.Space();
Condition.Print(output, true);
output.Space();
if (Alternative != null)
{
// The squeezer replaces "block"-s that contain only a single
// statement with the statement itself; technically, the AST
// is correct, but this can create problems when we output an
// IF having an ELSE clause where the THEN clause ends in an
// IF *without* an ELSE block (then the outer ELSE would refer
// to the inner IF). This function checks for this case and
// adds the block braces if needed.
if (output.Options.Braces)
{
output.MakeBlock(Body);
}
else if (Body == null)
{
output.ForceSemicolon();
}
else
{
var b = Body;
while (true)
{
if (b is AstIf nestedIf)
{
if (nestedIf.Alternative == null)
{
output.MakeBlock(Body);
break;
}
b = nestedIf.Alternative;
}
else if (b is AstStatementWithBody statementWithBody)
{
b = statementWithBody.Body;
}
else
{
output.ForceStatement(Body);
break;
}
}
}
output.Space();
output.Print("else");
output.Space();
if (Alternative is AstIf)
{
Alternative.Print(output);
}
else
{
output.ForceStatement(Alternative);
}
}
else
{
output.PrintBody(Body);
}
}
public override void CodeGen(OutputContext output)
{
Body.Print(output);
output.Semicolon();
}
