forked from sass/libsass
/
remove_placeholders.cpp
59 lines (45 loc) · 1.51 KB
/
remove_placeholders.cpp
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#include "remove_placeholders.hpp"
#include "context.hpp"
#include "inspect.hpp"
#include "to_string.hpp"
#include <iostream>
namespace Sass {
Remove_Placeholders::Remove_Placeholders(Context& ctx)
: ctx(ctx)
{ }
template<typename T>
void Remove_Placeholders::clean_selector_list(T r) {
// Create a new selector group without placeholders
Selector_List* sl = static_cast<Selector_List*>(r->selector());
if (sl) {
Selector_List* new_sl = new (ctx.mem) Selector_List(sl->path(), sl->position());
for (size_t i = 0, L = sl->length(); i < L; ++i) {
if (!(*sl)[i]->has_placeholder()) {
*new_sl << (*sl)[i];
}
}
// Set the new placeholder selector list
r->selector(new_sl);
}
// Iterate into child blocks
Block* b = r->block();
for (size_t i = 0, L = b->length(); i < L; ++i) {
Statement* stm = (*b)[i];
stm->perform(this);
}
}
void Remove_Placeholders::operator()(Block* b) {
for (size_t i = 0, L = b->length(); i < L; ++i) {
(*b)[i]->perform(this);
}
}
void Remove_Placeholders::operator()(Ruleset* r) {
clean_selector_list(r);
}
void Remove_Placeholders::operator()(Media_Block* m) {
clean_selector_list(m);
}
void Remove_Placeholders::operator()(At_Rule* a) {
if (a->block()) a->block()->perform(this);
}
}