bjoernager/rust
bjoernager/rust
1
Fork 0
Code Issues Pull requests Activity

Make std::istr::push_byte efficient

Browse source 
It used to allocate two (!) heap values per pushed byte. It now goes through
a runtime function that simply grows the istr and writes the byte.
This commit is contained in:
Marijn Haverbeke 2011-08-29 22:46:25 +02:00
parent 14567c5eb0
commit b099b1e3f7
4 changed files with 17 additions and 4 deletions
Download patch file Download diff file Expand all files Collapse all files

9
src/rt/rust_builtin.cpp
View file

@ -243,6 +243,15 @@ vec_from_buf_shared(rust_task *task, type_desc *ty,
return v;
}
extern "C" CDECL void
rust_istr_push(rust_task* task, rust_vec** sp, uint8_t byte) {
size_t fill = (*sp)->fill;
reserve_vec(task, sp, fill + 1);
(*sp)->data[fill-1] = byte;
(*sp)->data[fill] = 0;
(*sp)->fill = fill + 1;
}
extern "C" CDECL rust_str *
str_from_cstr(rust_task *task, char *sbuf)
{