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#ifndef SOURCE_CC
#define SOURCE_CC
#include "array.cc"
#include "common.cc"
#include "memory.cc"
typedef u32 Source_Id;
struct Span {
Source_Id id;
usize start, end;
Span(Source_Id id, usize start, usize end) : id(id), start(start), end(end) {}
};
struct Buffer {
String file;
String content;
Link link;
const Allocator* allocator;
};
bool buffer_init(const Allocator* allocator,
const String* content_in, const String* file_in, Buffer** out) {
assert_neq(allocator, nullptr);
assert_neq(content_in, nullptr);
assert_neq(file_in, nullptr);
assert_neq(out, nullptr);
Buffer* buffer = allocate<Buffer>(allocator, 1);
if(buffer == nullptr) return false;
String content, file;
bool ret = slice_copy(allocator, content_in, &content);
if (unlikely(!ret)) {
deallocate(allocator, (u8*)buffer);
return false;
}
ret = slice_copy(allocator, file_in, &file);
if (unlikely(!ret)) {
slice_deallocate(allocator, &content);
deallocate(allocator, (u8*)buffer);
return false;
}
buffer->file = file;
buffer->content = content;
buffer->allocator = allocator;
buffer->link = {};
*out = buffer;
return true;
}
void buffer_deinit(Buffer* buffer) {
assert_neq(buffer, nullptr);
const Allocator* allocator = buffer->allocator;
if(allocator == nullptr) return;
slice_deallocate(buffer->allocator, &buffer->file);
slice_deallocate(buffer->allocator, &buffer->content);
memset(buffer, 0, sizeof(*buffer));
deallocate(buffer->allocator, (u8*)buffer);
}
struct Buffer_Manager {
Link* stack;
Array<Buffer*> buffers;
};
#define buffer_manager_init(allocator) \
Buffer_Manager { nullptr, array_init(Buffer*, allocator) }
bool buffer_manager_push(Buffer_Manager* manager, Buffer* b) {
assert_neq(manager, nullptr);
assert_neq(b, nullptr);
bool ret = array_push(&manager->buffers, b);
if (!ret) return false;
b = *array_last(&manager->buffers);
if (manager->stack != nullptr) link_after(manager->stack, &b->link);
manager->stack = &b->link;
return true;
}
bool buffer_manager_pop(Buffer_Manager* manager, Buffer** b) {
assert_neq(manager, nullptr);
assert_neq(b, nullptr);
Link* link = manager->stack;
if (link == nullptr) return false;
Link* next = link->prev;
link_remove(link);
manager->stack = next;
Buffer* buffer = containerof(Buffer, link, link);
*b = buffer;
return true;
}
void buffer_manager_deinit(Buffer_Manager* manager) {
assert_neq(manager, nullptr);
array_deinit(&manager->buffers);
}
#endif
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