void Output::operator()(Supports_Block* f)
{
if (f->is_invisible()) return;
Supports_Condition* c = f->condition();
Block* b = f->block();
// Filter out feature blocks that aren't printable (process its children though)
if (!Util::isPrintable(f, output_style())) {
for (size_t i = 0, L = b->length(); i < L; ++i) {
Statement* stm = (*b)[i];
if (dynamic_cast<Has_Block*>(stm)) {
stm->perform(this);
}
}
return;
}
if (output_style() == NESTED) indentation += f->tabs();
append_indentation();
append_token("@supports", f);
append_mandatory_space();
c->perform(this);
append_scope_opener();
if (b->has_non_hoistable()) {
// JMA - hoisted, output the non-hoistable in a nested block, followed by the hoistable
append_scope_opener();
for (size_t i = 0, L = b->length(); i < L; ++i) {
Statement* stm = (*b)[i];
if (!stm->is_hoistable()) {
stm->perform(this);
}
}
append_scope_closer();
for (size_t i = 0, L = b->length(); i < L; ++i) {
Statement* stm = (*b)[i];
if (stm->is_hoistable()) {
stm->perform(this);
}
}
}
else {
// JMA - not hoisted, just output in order
for (size_t i = 0, L = b->length(); i < L; ++i) {
Statement* stm = (*b)[i];
stm->perform(this);
if (i < L - 1) append_special_linefeed();
}
}
if (output_style() == NESTED) indentation -= f->tabs();
append_scope_closer();
}
void Output::operator()(Media_Block* m)
{
if (m->is_invisible()) return;
List* q = m->media_queries();
Block* b = m->block();
// Filter out media blocks that aren't printable (process its children though)
if (!Util::isPrintable(m, output_style())) {
for (size_t i = 0, L = b->length(); i < L; ++i) {
Statement* stm = (*b)[i];
if (dynamic_cast<Has_Block*>(stm)) {
stm->perform(this);
}
}
return;
}
if (output_style() == NESTED) indentation += m->tabs();
append_indentation();
append_token("@media", m);
append_mandatory_space();
in_media_block = true;
q->perform(this);
in_media_block = false;
append_scope_opener();
for (size_t i = 0, L = b->length(); i < L; ++i) {
if ((*b)[i]) (*b)[i]->perform(this);
if (i < L - 1) append_special_linefeed();
}
if (output_style() == NESTED) indentation -= m->tabs();
append_scope_closer();
}
void Output::operator()(Keyframe_Rule* r)
{
Block* b = r->block();
Selector* v = r->selector();
if (v) {
v->perform(this);
}
if (!b) {
append_colon_separator();
return;
}
append_scope_opener();
for (size_t i = 0, L = b->length(); i < L; ++i) {
Statement* stm = (*b)[i];
if (!stm->is_hoistable()) {
stm->perform(this);
if (i < L - 1) append_special_linefeed();
}
}
for (size_t i = 0, L = b->length(); i < L; ++i) {
Statement* stm = (*b)[i];
if (stm->is_hoistable()) {
stm->perform(this);
}
}
append_scope_closer();
}
void Inspect::operator()(Bubble* bubble)
{
append_indentation();
append_token("::BUBBLE", bubble);
append_scope_opener();
bubble->node()->perform(this);
append_scope_closer();
}
void Output::operator()(Directive* a)
{
std::string kwd = a->keyword();
Selector* s = a->selector();
Expression* v = a->value();
Block* b = a->block();
append_indentation();
append_token(kwd, a);
if (s) {
append_mandatory_space();
in_wrapped = true;
s->perform(this);
in_wrapped = false;
}
if (v) {
append_mandatory_space();
// ruby sass bug? should use options?
append_token(v->to_string(/* opt */), v);
}
if (!b) {
append_delimiter();
return;
}
if (b->is_invisible() || b->length() == 0) {
append_optional_space();
return append_string("{}");
}
append_scope_opener();
bool format = kwd != "@font-face";;
for (size_t i = 0, L = b->length(); i < L; ++i) {
Statement* stm = (*b)[i];
if (!stm->is_hoistable()) {
stm->perform(this);
if (i < L - 1 && format) append_special_linefeed();
}
}
for (size_t i = 0, L = b->length(); i < L; ++i) {
Statement* stm = (*b)[i];
if (stm->is_hoistable()) {
stm->perform(this);
if (i < L - 1 && format) append_special_linefeed();
}
}
append_scope_closer();
}
// statements
void Inspect::operator()(Block* block)
{
if (!block->is_root()) {
add_open_mapping(block);
append_scope_opener();
}
if (output_style() == NESTED) indentation += block->tabs();
for (size_t i = 0, L = block->length(); i < L; ++i) {
(*block)[i]->perform(this);
}
if (output_style() == NESTED) indentation -= block->tabs();
if (!block->is_root()) {
append_scope_closer();
add_close_mapping(block);
}
}
void Output::operator()(Ruleset* r)
{
Selector* s = r->selector();
Block* b = r->block();
bool decls = false;
// Filter out rulesets that aren't printable (process its children though)
if (!Util::isPrintable(r, output_style())) {
for (size_t i = 0, L = b->length(); i < L; ++i) {
Statement* stm = (*b)[i];
if (dynamic_cast<Has_Block*>(stm)) {
stm->perform(this);
}
}
return;
}
if (b->has_non_hoistable()) {
decls = true;
if (output_style() == NESTED) indentation += r->tabs();
if (opt.source_comments) {
std::stringstream ss;
append_indentation();
ss << "/* line " << r->pstate().line + 1 << ", " << r->pstate().path << " */";
append_string(ss.str());
append_optional_linefeed();
}
s->perform(this);
append_scope_opener(b);
for (size_t i = 0, L = b->length(); i < L; ++i) {
Statement* stm = (*b)[i];
bool bPrintExpression = true;
// Check print conditions
if (typeid(*stm) == typeid(Declaration)) {
Declaration* dec = static_cast<Declaration*>(stm);
if (dec->value()->concrete_type() == Expression::STRING) {
String_Constant* valConst = static_cast<String_Constant*>(dec->value());
std::string val(valConst->value());
if (auto qstr = dynamic_cast<String_Quoted*>(valConst)) {
if (!qstr->quote_mark() && val.empty()) {
bPrintExpression = false;
}
}
}
else if (dec->value()->concrete_type() == Expression::LIST) {
List* list = static_cast<List*>(dec->value());
bool all_invisible = true;
for (size_t list_i = 0, list_L = list->length(); list_i < list_L; ++list_i) {
Expression* item = (*list)[list_i];
if (!item->is_invisible()) all_invisible = false;
}
if (all_invisible) bPrintExpression = false;
}
}
// Print if OK
if (!stm->is_hoistable() && bPrintExpression) {
stm->perform(this);
}
}
if (output_style() == NESTED) indentation -= r->tabs();
append_scope_closer(b);
}
if (b->has_hoistable()) {
if (decls) ++indentation;
for (size_t i = 0, L = b->length(); i < L; ++i) {
Statement* stm = (*b)[i];
if (stm->is_hoistable()) {
stm->perform(this);
}
}
if (decls) --indentation;
}
}