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
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nyash-codex
191
lang/src/vm/hakorune-vm/boxcall_handler.hako
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191
lang/src/vm/hakorune-vm/boxcall_handler.hako
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// BoxCallHandlerBox - Handle boxcall instruction (Box method calls)
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// Single Responsibility: Dispatch dynamic Box method calls
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using "lang/src/vm/boxes/result_box.hako" as Result
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using "lang/src/shared/common/string_ops.hako" as StringOps
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using "lang/src/shared/common/string_helpers.hako" as StringHelpers
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using "lang/src/vm/hakorune-vm/json_field_extractor.hako" as JsonFieldExtractor
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using "lang/src/vm/hakorune-vm/args_extractor.hako" as ArgsExtractorBox
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using "lang/src/vm/hakorune-vm/args_guard.hako" as ArgsGuardBox
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using "lang/src/vm/hakorune-vm/value_manager.hako" as ValueManagerBox
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using "lang/src/vm/hakorune-vm/receiver_guard.hako" as ReceiverGuardBox
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static box BoxCallHandlerBox {
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// Handle boxcall instruction
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// inst_json: {"op":"boxcall","box":X,"method":"name","args":[...],"dst":Y}
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// regs: register MapBox
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// Returns: Result.Ok(0) or Result.Err(message)
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handle(inst_json, regs) {
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// Extract box (receiver) ValueId
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local box_id = JsonFieldExtractor.extract_int(inst_json, "box")
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if box_id == null {
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return Result.Err("boxcall: box field not found")
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}
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// Extract method name
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local method_name = JsonFieldExtractor.extract_string(inst_json, "method")
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if method_name == null {
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return Result.Err("boxcall: method field not found")
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}
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// Extract arguments (construct fake mir_call JSON for ArgsExtractorBox)
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// We need to extract args array from inst_json
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local args_array = me._extract_args(inst_json, regs)
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// Special-case: methodRef — tolerate missing/empty arity by defaulting to 0 and return early
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if method_name == "methodRef" {
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local name = args_array.get(0)
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local arity = args_array.get(1)
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if arity == null { arity = 0 }
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local dst_reg = JsonFieldExtractor.extract_int(inst_json, "dst")
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// Load receiver early for direct dispatch
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local receiver = ValueManagerBox.get(regs, box_id)
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if receiver == null {
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return Result.Err("boxcall: receiver v%" + StringHelpers.int_to_str(box_id) + " is unset (method=methodRef)")
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}
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local result_val = receiver.methodRef(name, arity)
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if dst_reg != null { ValueManagerBox.set(regs, dst_reg, result_val) }
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return Result.Ok(0)
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}
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// Guard arguments (no nulls)
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local _g = ArgsGuardBox.ensure_no_nulls(args_array, method_name + "/" + args_array.size())
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if _g.is_Err() { return _g }
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// Extract destination register
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local dst_reg = JsonFieldExtractor.extract_int(inst_json, "dst")
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// Load receiver object
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local receiver = ValueManagerBox.get(regs, box_id)
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if receiver == null {
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return Result.Err("boxcall: receiver v%" + StringHelpers.int_to_str(box_id) + " is unset (method=" + method_name + ")")
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}
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// Prepare method signature for dispatch
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local arg_count = args_array.size()
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local method_sig = method_name + "/" + arg_count
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// Known methods dispatch table
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local result_val = null
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// StringBox methods (using Rust VM available methods)
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if method_sig == "upper/0" {
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result_val = receiver.to_upper()
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} else if method_sig == "lower/0" {
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result_val = receiver.to_lower()
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} else if method_sig == "size/0" {
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result_val = receiver.size()
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} else if method_sig == "length/0" {
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result_val = receiver.size()
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} else if method_sig == "isEmpty/0" {
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result_val = receiver.isEmpty()
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} else if method_sig == "substring/2" {
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result_val = receiver.substring(args_array.get(0), args_array.get(1))
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} else if method_sig == "charAt/1" {
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result_val = receiver.charAt(args_array.get(0))
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} else if method_sig == "indexOf/1" {
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result_val = receiver.indexOf(args_array.get(0))
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}
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// ArrayBox methods
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else if method_sig == "push/1" {
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result_val = receiver.push(args_array.get(0))
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} else if method_sig == "get/1" {
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result_val = receiver.get(args_array.get(0))
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} else if method_sig == "set/2" {
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result_val = receiver.set(args_array.get(0), args_array.get(1))
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} else if method_sig == "length/0" {
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result_val = receiver.size()
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} else if method_sig == "size/0" {
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result_val = receiver.size()
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} else if method_sig == "isEmpty/0" {
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result_val = receiver.isEmpty()
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}
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// MapBox methods
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else if method_sig == "get/1" {
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result_val = receiver.get(args_array.get(0))
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} else if method_sig == "set/2" {
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result_val = receiver.set(args_array.get(0), args_array.get(1))
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} else if method_sig == "has/1" {
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result_val = receiver.has(args_array.get(0))
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} else if method_sig == "size/0" {
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result_val = receiver.size()
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} else if method_sig == "isEmpty/0" {
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result_val = receiver.isEmpty()
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} else if method_sig == "delete/1" {
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result_val = receiver.delete(args_array.get(0))
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} else if method_sig == "keys/0" {
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result_val = receiver.keys()
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} else if method_sig == "values/0" {
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result_val = receiver.values()
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} else if method_sig == "methodRef/2" {
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// slot 113: Array.methodRef(method_name, arity) -> CallableBox
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result_val = receiver.methodRef(args_array.get(0), args_array.get(1))
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} else if method_sig == "call/1" {
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// slot 501: CallableBox.call(args_array) -> any
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// Flatten: pass args_array.get(0) (the actual args ArrayBox) to CallableBox.call
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// CallableBox.call will flatten the ArrayBox into individual arguments
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result_val = receiver.call(args_array.get(0))
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} else if method_sig == "arity/0" {
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// slot 500: CallableBox.arity() -> Integer
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result_val = receiver.arity()
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} else if method_sig == "call/2" {
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// slot 210: Map.call(key, args_array) -> any
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result_val = receiver.call(args_array.get(0), args_array.get(1))
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} else if method_sig == "callAsync/2" {
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// slot 211: Map.callAsync(key, args_array) -> FutureBox
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result_val = receiver.callAsync(args_array.get(0), args_array.get(1))
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} else if method_sig == "callAsync/1" {
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// slot 502: CallableBox.callAsync(args_array) -> FutureBox
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// Flatten: pass args_array.get(0) (the actual args ArrayBox) to CallableBox.callAsync
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// CallableBox.callAsync will flatten the ArrayBox into individual arguments
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result_val = receiver.callAsync(args_array.get(0))
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}
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// Fallback: unknown method
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// Note: Method resolution depends on Rust VM's plugin switching mechanism
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// (NYASH_VM_DISABLE_STRING_HANDLERS, NYASH_USE_PLUGIN_BUILTINS, etc.)
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// Future: Add Selfhost VM's own plugin resolution here
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else {
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return Result.Err("boxcall: unknown method: " + method_sig)
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}
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// Store result in destination register
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if dst_reg != null {
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ValueManagerBox.set(regs, dst_reg, result_val)
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}
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return Result.Ok(0)
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}
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// Extract args array from boxcall inst_json
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// inst_json: {"op":"boxcall","args":[...],...}
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// Returns: ArrayBox of argument values
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_extract_args(inst_json, regs) {
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// Find "args" field
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local args_key = "\"args\":["
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local args_start = inst_json.indexOf(args_key)
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if args_start < 0 {
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// No args field, return empty array
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return new ArrayBox()
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}
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args_start = args_start + args_key.size()
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// Find array end
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local args_end = StringOps.index_of_from(inst_json, "]", args_start)
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if args_end < 0 {
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return new ArrayBox()
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}
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// Extract args array content
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local args_content = inst_json.substring(args_start, args_end)
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// Create fake mir_call JSON for ArgsExtractorBox
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local fake_mir_call = "{\"args\":[" + args_content + "]}"
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// Use ArgsExtractorBox to parse and load args
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return ArgsExtractorBox.extract_and_load(fake_mir_call, regs)
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}
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}
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