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casts, typecheck struct field access

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This commit is contained in:
Antoni Piasecki
2026-03-17 15:25:28 +01:00
parent 13fa93c611
commit 5846f7e730
5 changed files with 184 additions and 29 deletions
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14
src/std/std.zr
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@@ -47,7 +47,7 @@ func mem._align[x: i64] : i64
func mem._split_block[blk: mem.Block, needed: i64] : void
if blk->size >= needed + MEM_BLOCK_SIZE + 8
let new_blk: mem.Block = blk + MEM_BLOCK_SIZE + needed
let new_blk: mem.Block = (blk as ptr + MEM_BLOCK_SIZE + needed) as mem.Block
new_blk->size = blk->size - needed - MEM_BLOCK_SIZE
new_blk->free = true
new_blk->next = blk->next
@@ -70,17 +70,19 @@ func mem._request_space?[size: i64] : mem.Block
// PROT_READ | PROT_WRITE = 3
// MAP_PRIVATE | MAP_ANONYMOUS = 34
// fd = -1, offset = 0
let blk: mem.Block = _builtin_syscall(SYS_mmap, 0, alloc_size, 3, 34, -1, 0)
if blk == -1
let blk_ptr: ptr = _builtin_syscall(SYS_mmap, 0, alloc_size, 3, 34, -1, 0) as ptr
if blk_ptr == -1
err.set(ERR_ALLOC_FAILED, "mem._request_space: mmap failed")
return 0
let blk: mem.Block = blk_ptr as mem.Block
blk->size = alloc_size - MEM_BLOCK_SIZE
blk->free = false
blk->next = 0
blk->prev = 0
blk->next = 0 as mem.Block
blk->prev = 0 as mem.Block
let tail: mem.Block = mem.read64(_builtin_heap_tail())
let tail: mem.Block = mem.read64(_builtin_heap_tail()) as mem.Block
if tail
tail->next = blk
blk->prev = tail