restore(lang): full lang tree from ff3ef452 (306 files) — compiler, vm, shared, runner, c-abi, etc.\n\n- Restores lang/ directory (files≈306, dirs≈64) as per historical branch with selfhost sources\n- Keeps our recent parser index changes in compiler/* (merged clean by checkout)\n- Unblocks selfhost development and documentation references

lang/src/vm/boxes/mini_vm_prints.hako

@@ -0,0 +1,114 @@
+using "lang/src/shared/common/mini_vm_scan.hako" as MiniVmScan
+using "lang/src/shared/common/mini_vm_binop.hako" as MiniVmBinOp
+using "lang/src/shared/common/mini_vm_compare.hako" as MiniVmCompare
+// Use the JSON adapter facade for cursor ops (next_non_ws, digits)
+using "lang/src/vm/boxes/json_cur.hako" as MiniJsonLoader
+
+static box MiniVmPrints {
+  _trace_enabled() { return 0 }
+  _fallback_enabled() { return 0 }
+  // literal string within Print
+  try_print_string_value_at(json, end, print_pos) {
+    local scan = new MiniVmScan()
+    local k_val = "\"value\":\""
+    local s = scan.index_of_from(json, k_val, print_pos)
+    if s < 0 || s >= end { return -1 }
+    local i = s + k_val.size()
+    local j = scan.index_of_from(json, "\"", i)
+    if j <= 0 || j > end { return -1 }
+    print(json.substring(i, j))
+    return j + 1
+  }
+  // literal int within Print (typed)
+  try_print_int_value_at(json, end, print_pos) {
+    local scan = new MiniVmScan()
+    local k_expr = "\"expression\":{"
+    local epos = scan.index_of_from(json, k_expr, print_pos)
+    if epos <= 0 || epos >= end { return -1 }
+    local obj_start = scan.index_of_from(json, "{", epos)
+    if obj_start <= 0 || obj_start >= end { return -1 }
+    local obj_end = scan.find_balanced_object_end(json, obj_start)
+    if obj_end <= 0 || obj_end > end { return -1 }
+    local k_tint = "\"type\":\"int\""
+    local tpos = scan.index_of_from(json, k_tint, obj_start)
+    if tpos <= 0 || tpos >= obj_end { return -1 }
+    local k_val2 = "\"value\":"
+    local v2 = scan.index_of_from(json, k_val2, tpos)
+    if v2 <= 0 || v2 >= obj_end { return -1 }
+    local digits = scan.read_digits(json, v2 + k_val2.size())
+    if digits == "" { return -1 }
+    print(digits)
+    return obj_end + 1
+  }
+  // minimal FunctionCall printer for echo/itoa
+  try_print_functioncall_at(json, end, print_pos) {
+    local scan = new MiniVmScan()
+    local k_fc = "\"kind\":\"FunctionCall\""
+    local fcp = scan.index_of_from(json, k_fc, print_pos)
+    if fcp <= 0 || fcp >= end { return -1 }
+    local k_name = "\"name\":\""
+    local npos = scan.index_of_from(json, k_name, fcp)
+    if npos <= 0 || npos >= end { return -1 }
+    local ni = npos + k_name.size()
+    local nj = scan.index_of_from(json, "\"", ni)
+    if nj <= 0 || nj > end { return -1 }
+    local fname = json.substring(ni, nj)
+    local k_args = "\"arguments\":["
+    local apos = scan.index_of_from(json, k_args, nj)
+    if apos <= 0 || apos >= end { return -1 }
+    local arr_start = scan.index_of_from(json, "[", apos)
+    local arr_end = scan.find_balanced_array_end(json, arr_start)
+    if arr_start <= 0 || arr_end <= 0 || arr_end > end { return -1 }
+    // handle empty args []
+    local nn = new MiniJsonLoader().next_non_ws(json, arr_start+1)
+    if nn > 0 && nn <= arr_end {
+      if json.substring(nn, nn+1) == "]" {
+        if fname == "echo" { print("")  return arr_end + 1 }
+        if fname == "itoa" { print("0")  return arr_end + 1 }
+        return -1
+      }
+    }
+    // first arg type
+    local k_t = "\"type\":\""
+    local atpos = scan.index_of_from(json, k_t, arr_start)
+    if atpos <= 0 || atpos >= arr_end {
+      if fname == "echo" { print("")  return arr_end + 1 }
+      if fname == "itoa" { print("0")  return arr_end + 1 }
+      return -1
+    }
+    atpos = atpos + k_t.size()
+    local at_end = scan.index_of_from(json, "\"", atpos)
+    if at_end <= 0 || at_end > arr_end { return -1 }
+    local aty = json.substring(atpos, at_end)
+    if aty == "string" {
+      local k_sval = "\"value\":\""
+      local svalp = scan.index_of_from(json, k_sval, at_end)
+      if svalp <= 0 || svalp >= arr_end { return -1 }
+      local si = svalp + k_sval.size()
+      local sj = scan.index_of_from(json, "\"", si)
+      if sj <= 0 || sj > arr_end { return -1 }
+      local sval = json.substring(si, sj)
+      if fname == "echo" { print(sval)  return sj + 1 }
+      return -1
+    }
+    if aty == "int" || aty == "i64" || aty == "integer" {
+      local k_ival = "\"value\":"
+      local ivalp = scan.index_of_from(json, k_ival, at_end)
+      if ivalp <= 0 || ivalp >= arr_end { return -1 }
+      local digits = scan.read_digits(json, ivalp + k_ival.size())
+      if fname == "itoa" || fname == "echo" { print(digits)  return ivalp + k_ival.size() }
+      return -1
+    }
+    return -1
+  }
+  // Print all Print-Literal values within [start,end]
+  print_prints_in_slice(json, start, end) {
+    // Prefer plugin result whenever JSON route ran
+    local dbg = _trace_enabled()
+    local printed = 0
+    printed = printed // placeholder to keep structure; logic in .nyash retained
+    return printed
+  }
+  process_if_once(json) { return new MiniVmPrints().process_if_once(json) }
+  print_all_print_literals(json) { return new MiniVmPrints().print_all_print_literals(json) }
+}