Orkuncakilkaya
7e7f3ab297
registry NAME of RECORD [as PREFIX] is a global table; def NAME key { ... } in
any file is one entry, collected in source order and filled before any code
runs. Each entry gets an index constant (PREFIX_KEY), the table PREFIX_COUNT,
and a record with a key field gets it filled and a NAME_find(key). A record
literal naming a field its record lacks is now an error everywhere; a global's
initializer is lowered as its own file's code (its errors, and what its module
may see, were whichever statement came last).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
99 lines
2.5 KiB
Text
99 lines
2.5 KiB
Text
# registry_finish.ludic — L8: when the program is read, each registry gets its entries.
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function registries_finish() -> void {
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var d = 0
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while d < len(g_df_reg) {
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if reg_find(g_df_reg[d]) < 0 {
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g_err_file = g_df_rec[d].file
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g_err_line = g_df_rec[d].line
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g_parsing = false
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perr(`def {g_df_reg[d]} {g_df_key[d]}: there is no registry {g_df_reg[d]}`)
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}
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d += 1
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}
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var r = 0
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while r < len(g_rg_name) {
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reg_fill(r)
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r += 1
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}
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}
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function reg_fill(r: int) -> void {
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let v = g_rg_var[r]
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let t = g_rg_type[r]
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let comp = find_comp(t)
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let keyed = comp != null and field_index(comp, "key") >= 0
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let lst = node(E_LIST)
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lst.file = v.file
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lst.line = v.line
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let seen = new []pointer
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var n = 0
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var d = 0
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while d < len(g_df_reg) {
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if (g_df_reg[d] == g_rg_name[r]) {
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let key = g_df_key[d]
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let rec = g_df_rec[d]
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var j = 0
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while j < len(seen) {
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if (seen[j] == key) {
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g_err_file = rec.file
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g_err_line = rec.line
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g_parsing = false
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perr(`def {g_rg_name[r]} {key} is declared twice`)
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}
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j += 1
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}
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push(seen, key)
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if keyed and not reg_rec_has(rec, "key") {
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let fi = node(E_FINIT)
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fi.s = "key"
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let ks = node(E_STR)
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ks.s = key
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fi.a = ks
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push(rec.kids, fi)
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}
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let nw = node(E_NEW)
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nw.s = t
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nw.a = rec
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nw.file = rec.file
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nw.line = rec.line
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push(lst.kids, nw)
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reg_const(v, `{g_rg_prefix[r]}_{reg_upper(key)}`, n)
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n += 1
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}
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d += 1
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}
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reg_const(v, `{g_rg_prefix[r]}_COUNT`, n)
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if n == 0 {
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let empty = node(E_NEW)
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empty.s = v.ty
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empty.file = v.file
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v.a = empty
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} else {
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v.a = lst
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}
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if keyed { reg_find_fn(v) }
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}
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# NAME_find(key) -> int: the entry's index, or -1 - written as Ludic and read like the rest
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function reg_find_fn(v: Node) -> void {
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let fname = `{reg_lower(v.s)}_find`
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let src = `function {fname}(key: string) -> int {{\n var i = 0\n while i < len({v.s}) {{\n if {v.s}[i].key == key {{ return i }}\n i += 1\n }}\n return -1\n}}\n`
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let saved_toks = toks
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let saved_pi = pi
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let saved_file = g_parse_file
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let saved_parsing = g_parsing
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g_parse_file = v.file
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g_parsing = true
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lex_at(src, v.line)
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pi = 0
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let at = len(prog)
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skipnl()
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parse_one_decl()
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var k = at
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while k < len(prog) {
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prog[k].vis = v.vis
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k += 1
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}
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toks = saved_toks
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pi = saved_pi
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g_parse_file = saved_file
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g_parsing = saved_parsing
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}
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