lua: table constructors (array/hash/computed/mixed/nested) +20 tests

lib/lua/test.sh

@@ -482,6 +482,63 @@ cat > "$TMPFILE" << 'EPOCHS'
 (epoch 579)
 (eval "(lua-eval-ast \"local a = 0 local b = 0 local function m() return 7, 11 end a, b = m() return a + b\")")
 
+;; ── Phase 3: table constructors ────────────────────────────────
+;; Array part
+(epoch 600)
+(eval "(lua-eval-ast \"local t = {10, 20, 30} return t[1]\")")
+(epoch 601)
+(eval "(lua-eval-ast \"local t = {10, 20, 30} return t[3]\")")
+(epoch 602)
+(eval "(lua-eval-ast \"local t = {10, 20, 30} if t[4] == nil then return 1 else return 0 end\")")
+
+;; Hash part
+(epoch 610)
+(eval "(lua-eval-ast \"local t = {x = 1, y = 2} return t.x + t.y\")")
+(epoch 611)
+(eval "(lua-eval-ast \"local t = {name = \\\"bob\\\", age = 30} return t.name\")")
+(epoch 612)
+(eval "(lua-eval-ast \"local t = {name = \\\"bob\\\", age = 30} return t.age\")")
+
+;; Computed keys
+(epoch 620)
+(eval "(lua-eval-ast \"local k = \\\"answer\\\" local t = {[k] = 42} return t.answer\")")
+(epoch 621)
+(eval "(lua-eval-ast \"local t = {[1+1] = \\\"two\\\"} return t[2]\")")
+(epoch 622)
+(eval "(lua-eval-ast \"local t = {[\\\"a\\\" .. \\\"b\\\"] = 99} return t.ab\")")
+(epoch 623)
+(eval "(lua-eval-ast \"local t = {[true] = \\\"yes\\\", [false] = \\\"no\\\"} return t[true]\")")
+
+;; Mixed array + hash
+(epoch 630)
+(eval "(lua-eval-ast \"local t = {1, 2, 3, key = \\\"v\\\"} return t[2]\")")
+(epoch 631)
+(eval "(lua-eval-ast \"local t = {1, 2, 3, key = \\\"v\\\"} return t.key\")")
+
+;; Separators
+(epoch 640)
+(eval "(lua-eval-ast \"local t = {1, 2, 3,} return t[3]\")")
+(epoch 641)
+(eval "(lua-eval-ast \"local t = {1; 2; 3} return t[2]\")")
+(epoch 642)
+(eval "(lua-eval-ast \"local t = {1, 2; 3, 4} return t[4]\")")
+
+;; Nested
+(epoch 650)
+(eval "(lua-eval-ast \"local t = {{1, 2}, {3, 4}} return t[2][1]\")")
+(epoch 651)
+(eval "(lua-eval-ast \"local t = {inner = {a = 1, b = 2}} return t.inner.b\")")
+
+;; Dynamic values
+(epoch 660)
+(eval "(lua-eval-ast \"local x = 7 local t = {x, x * 2, x * 3} return t[2]\")")
+(epoch 661)
+(eval "(lua-eval-ast \"local function f(n) return n + 1 end local t = {f(1), f(2), f(3)} return t[3]\")")
+
+;; Functions as values
+(epoch 670)
+(eval "(lua-eval-ast \"local t = {fn = function(x) return x * 2 end} return t.fn(5)\")")
+
 EPOCHS
 
 OUTPUT=$(timeout 60 "$SX_SERVER" < "$TMPFILE" 2>/dev/null)
@@ -744,6 +801,28 @@ check 577 "single-assign truncates to 1st"  '5'
 check 578 "empty return → all nil"          '99'
 check 579 "multi-assign (non-local)"        '18'
 
+# ── Phase 3: table constructors ────────────────────────────────
+check 600 "array t[1]"                      '10'
+check 601 "array t[3]"                      '30'
+check 602 "array out-of-range is nil"       '1'
+check 610 "hash t.x+t.y"                    '3'
+check 611 "hash name lookup"                '"bob"'
+check 612 "hash age lookup"                 '30'
+check 620 "computed [k]=v"                  '42'
+check 621 "computed [1+1]"                  '"two"'
+check 622 "computed [concat]"               '99'
+check 623 "boolean key [true]"              '"yes"'
+check 630 "mixed array part"                '2'
+check 631 "mixed hash part"                 '"v"'
+check 640 "trailing comma"                  '3'
+check 641 "semicolon separators"            '2'
+check 642 "mixed separators"                '4'
+check 650 "nested array"                    '3'
+check 651 "nested hash"                     '2'
+check 660 "dynamic pos values"              '14'
+check 661 "function calls as values"        '4'
+check 670 "function-valued field + call"    '10'
+
 TOTAL=$((PASS + FAIL))
 if [ $FAIL -eq 0 ]; then
   echo "ok $PASS/$TOTAL Lua-on-SX tests passed"

plans/lua-on-sx.md

@@ -53,7 +53,7 @@ Each item: implement → tests → tick box → update progress log.
 ### Phase 3 — tables + functions + first PUC-Rio slice
 - [x] `function` (anon, local, top-level), closures
 - [x] Multi-return: return as list, unpack at call sites
-- [ ] Table constructors (array + hash + computed keys)
+- [x] Table constructors (array + hash + computed keys)
 - [ ] Raw table access `t.k` / `t[k]` (no metatables yet)
 - [ ] Vendor PUC-Rio 5.1.5 suite to `lib/lua/lua-tests/` (just `.lua` files)
 - [ ] `lib/lua/conformance.sh` + Python runner (model on `lib/js/test262-runner.py`)
@@ -82,6 +82,7 @@ Each item: implement → tests → tick box → update progress log.
 
 _Newest first. Agent appends on every commit._
 
+- 2026-04-24: lua: phase 3 — table constructors verified (array, hash, computed keys, mixed, nested, dynamic values, fn values, sep variants). 205 total tests.
 - 2026-04-24: lua: multi-return — `lua-multi` tagged value, `lua-first`/`lua-nth-ret`/`lua-pack-return` runtime, tail-position spread in return/local/assign. 185 total tests.
 - 2026-04-24: lua: phase 3 — functions (anon/local/top-level) + closures verified (lexical capture, mutation-through-closure, recursion, HOFs). 175 total tests.
 - 2026-04-24: lua: phase 2 transpile — arithmetic, comparison, short-circuit logical, `..` concat, if/while/repeat/for-num/local/assign. 157 total tests green.