ludic/selfhost/emit_addr.ludic
Orkuncakilkaya effb3f637f refactor(lang): rename the ptr/ptrs types to pointer/pointers
Expand the abbreviated pointer types to full words on the language surface:
  ptr   ->  pointer     (a raw address / FFI handle)
  ptrs  ->  pointers    (a buffer of pointers)

The Ludic type name is distinct from LLVM's own `ptr` spelling: llty() maps
`pointer`/`pointers` to LLVM `ptr`, and the emitted IR keeps `ptr`, so only
the Ludic-level surface changes. Rewrites type annotations across all
sources, the 8 hardcoded pointer type-tags, the `pointers`-buffer indexing
in emit_addr, the grammars/LSP/JetBrains tokens, and the docs
(type-ptr -> type-pointer, type-ptrs -> type-pointers). int/bool keep their
conventional short spelling (like Math).

Reseeded; C-free fixpoint holds; all suites green (45/24/29); site + check.py OK.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-08-30 01:58:54 +03:00

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# emit_addr.ludic — addresses of lvalues (struct fields and slice elements),
# shared by expression loads and assignment stores. Each returns the address
# register; the element/field type is written into g_addr_ty.
var g_addr_ty: pointer # out-param: the type at the computed address
# address of `base.field`
function emit_member_addr(e: Node) -> pointer {
let base = emit_expr(e.a)
let s = layout_node(base.ty)
if (s == null) { perr(`member access on non-aggregate {base.ty}`) }
let fidx = field_index(s, e.s)
if fidx < 0 { perr(`no such field {e.s}`) }
g_addr_ty = field_type(s, e.s)
let r = nreg()
emit(" "); emit(r); emit(" = getelementptr inbounds "); emit(layout_ty(base.ty))
emit(", ptr "); emit(base.code); emit(", i32 0, i32 "); emit(itoa(fidx)); emit("\n")
return r
}
# address of `base[index]` (slices only in this subset)
function emit_index_addr(e: Node) -> pointer {
let base = emit_expr(e.a)
if not is_slice_ty(base.ty) { # a raw pointer: address of element i
let bi = emit_expr(e.b) # (evaluate index first — it may set g_addr_ty)
if (base.ty == "words") { # a `words` buffer: 32-bit int elements
let rw = emit_bind(`getelementptr inbounds i32, ptr {base.code}, i32 {bi.code}`)
g_addr_ty = "int"
return rw
}
if (base.ty == "fixeds") { # a `fixeds` buffer: 32-bit fixed elements
let rf = emit_bind(`getelementptr inbounds i32, ptr {base.code}, i32 {bi.code}`)
g_addr_ty = "fixed"
return rf
}
if (base.ty == "pointers") { # a `pointers` buffer: pointer elements
let rp = emit_bind(`getelementptr inbounds ptr, ptr {base.code}, i32 {bi.code}`)
g_addr_ty = "ptr"
return rp
}
let r = emit_bind(`getelementptr inbounds i8, ptr {base.code}, i32 {bi.code}`) # a ptr/str: bytes
g_addr_ty = "byte" # set last so the caller sees it
return r
}
let el = slice_elem(base.ty)
g_addr_ty = el
# load the data pointer from the slice header (field 0)
let dp = nreg()
emit(" "); emit(dp); emit(" = getelementptr inbounds %LSlice, ptr ")
emit(base.code); emit(", i32 0, i32 0\n")
let data = nreg()
emit(" "); emit(data); emit(" = load ptr, ptr "); emit(dp); emit("\n")
let ix = emit_expr(e.b)
let r = nreg()
emit(" "); emit(r); emit(" = getelementptr inbounds "); emit(llty(el))
emit(", ptr "); emit(data); emit(", i32 "); emit(ix.code); emit("\n")
return r
}