repl.c
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repl.c
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	#include <stdio.h>
	#include <stdlib.h>
	#include <string.h>
	#include <ctype.h>

	#include "ant.h"
	#include "repl.h"
	#include "readline.h"
	#include "reactor.h"
	#include "runtime.h"
	#include "internal.h"
	#include "descriptors.h"

	#include "silver/ast.h"
	#include "silver/engine.h"

	#include <crprintf.h>
	#include "modules/io.h"
	#include "highlight.h"
	#include "highlight/regex.h"

	typedef ant_history_t history_t;

	typedef enum {
	CMD_OK,
	CMD_EXIT,
	CMD_NOT_FOUND
	} cmd_result_t;

	typedef struct {
	const char *name;
	const char *description;
	bool has_arg;
	cmd_result_t (handler)(ant_t js, history_t history, const char arg);
	} repl_command_t;

	typedef struct {
	char *name;
	size_t len;
	} repl_decl_name_t;

	typedef struct {
	repl_decl_name_t *items;
	size_t count;
	size_t cap;
	} repl_decl_registry_t;

	typedef struct {
	const char **names;
	uint32_t *lens;
	size_t count;
	size_t cap;
	} repl_decl_pending_t;

	static repl_decl_registry_t *g_repl_decl_registry = NULL;

	static inline void repl_clear_exception_state(ant_t *js) {
	js->thrown_exists = false;
	js->thrown_value = js_mkundef();
	}

	static void repl_decl_registry_free(repl_decl_registry_t *reg) {
	if (!reg) return;
	for (size_t i = 0; i < reg->count; i++)
	free(reg->items[i].name);
	free(reg->items);
	reg->items = NULL;
	reg->count = 0;
	reg->cap = 0;
	}

	static bool repl_decl_registry_contains(
	const repl_decl_registry_t *reg,
	const char *name, uint32_t len
	) {
	if (!reg \|\| !name) return false;
	for (size_t i = 0; i < reg->count; i++) {
	if (
	reg->items[i].len == (size_t)len
	&& memcmp(reg->items[i].name, name, (size_t)len) == 0
	) return true;
	}
	return false;
	}

	static bool repl_decl_registry_add(
	ant_t js, repl_decl_registry_t reg,
	const char *name, uint32_t len
	) {
	if (!reg \|\| !name) return true;
	if (repl_decl_registry_contains(reg, name, len)) return true;

	if (reg->count >= reg->cap) {
	size_t new_cap = reg->cap ? reg->cap * 2 : 32;
	repl_decl_name_t ni = realloc(reg->items, new_cap sizeof(*ni));
	if (!ni) {
	js_mkerr_typed(js, JS_ERR_INTERNAL \| JS_ERR_NO_STACK, "out of memory");
	return false;
	}
	reg->items = ni;
	reg->cap = new_cap;
	}

	char *copy = malloc((size_t)len + 1);
	if (!copy) {
	js_mkerr_typed(js, JS_ERR_INTERNAL \| JS_ERR_NO_STACK, "out of memory");
	return false;
	}

	memcpy(copy, name, (size_t)len);
	copy[len] = '\0';
	reg->items[reg->count++] = (repl_decl_name_t){ .name = copy, .len = (size_t)len };

	return true;
	}

	static void repl_decl_pending_free(repl_decl_pending_t *p) {
	if (!p) return;
	free(p->names);
	free(p->lens);
	p->names = NULL;
	p->lens = NULL;
	p->count = 0;
	p->cap = 0;
	}

	static bool repl_decl_pending_contains(
	const repl_decl_pending_t *p,
	const char *name, uint32_t len
	) {
	if (!p \|\| !name) return false;
	for (size_t i = 0; i < p->count; i++)
	if (p->lens[i] == len && memcmp(p->names[i], name, (size_t)len) == 0) return true;
	return false;
	}

	static bool repl_decl_pending_push(
	ant_t js, repl_decl_pending_t p,
	const char *name, uint32_t len
	) {
	if (!p \|\| !name \|\| len == 0) return true;
	if (repl_decl_pending_contains(p, name, len)) return true;
	if (p->count >= p->cap) {
	size_t new_cap = p->cap ? p->cap * 2 : 16;
	const char *nn = realloc(p->names, new_cap sizeof(*nn));
	if (!nn) {
	js_mkerr_typed(js, JS_ERR_INTERNAL \| JS_ERR_NO_STACK, "out of memory");
	return false;
	}
	uint32_t nl = realloc(p->lens, new_cap sizeof(*nl));
	if (!nl) {
	p->names = nn;
	js_mkerr_typed(js, JS_ERR_INTERNAL \| JS_ERR_NO_STACK, "out of memory");
	return false;
	}
	p->names = nn;
	p->lens = nl;
	p->cap = new_cap;
	}
	p->names[p->count] = name;
	p->lens[p->count] = len;
	p->count++;
	return true;
	}

	static bool repl_collect_pattern_names(ant_t js, sv_ast_t pat, repl_decl_pending_t *p) {
	if (!pat) return true;
	switch (pat->type) {
	case N_IDENT:
	return repl_decl_pending_push(js, p, pat->str, pat->len);
	case N_ASSIGN_PAT:
	case N_ASSIGN:
	return repl_collect_pattern_names(js, pat->left, p);
	case N_REST:
	case N_SPREAD:
	return repl_collect_pattern_names(js, pat->right, p);
	case N_ARRAY:
	case N_ARRAY_PAT:
	for (int i = 0; i < pat->args.count; i++) {
	if (!repl_collect_pattern_names(js, pat->args.items[i], p)) return false;
	}
	return true;
	case N_OBJECT:
	case N_OBJECT_PAT:
	for (int i = 0; i < pat->args.count; i++) {
	sv_ast_t *prop = pat->args.items[i];
	if (!prop) continue;
	if (prop->type == N_PROPERTY) {
	if (!repl_collect_pattern_names(js, prop->right, p)) return false;
	} else if (prop->type == N_REST \|\| prop->type == N_SPREAD) {
	if (!repl_collect_pattern_names(js, prop->right, p)) return false;
	}
	}
	return true;
	default: return true;
	}
	}

	static bool repl_collect_top_level_decls(ant_t js, sv_ast_t stmt, repl_decl_pending_t *p) {
	if (!stmt) return true;
	sv_ast_t *node = (stmt->type == N_EXPORT) ? stmt->left : stmt;
	if (!node) return true;

	if (node->type == N_VAR && node->var_kind != SV_VAR_VAR) {
	for (int i = 0; i < node->args.count; i++) {
	sv_ast_t *decl = node->args.items[i];
	if (!decl \|\| decl->type != N_VARDECL \|\| !decl->left) continue;
	if (!repl_collect_pattern_names(js, decl->left, p)) return false;
	}
	return true;
	}

	if (node->type == N_CLASS && node->str && node->len > 0)
	return repl_decl_pending_push(js, p, node->str, node->len);

	if (node->type == N_IMPORT_DECL) {
	for (int i = 0; i < node->args.count; i++) {
	sv_ast_t *spec = node->args.items[i];
	if (!spec \|\| spec->type != N_IMPORT_SPEC \|\| !spec->right) continue;
	if (spec->right->type != N_IDENT) continue;
	if (!repl_decl_pending_push(js, p, spec->right->str, spec->right->len)) return false;
	}
	}

	return true;
	}

	static bool repl_precheck_and_commit_lexicals(
	ant_t js, repl_decl_registry_t reg,
	const char *code, size_t len
	) {
	if (!js \|\| !reg \|\| !code \|\| len == 0) return true;

	code_arena_mark_t mark = code_arena_mark();
	repl_decl_pending_t pending = {0};
	bool ok = true;

	repl_clear_exception_state(js);
	sv_ast_t *program = sv_parse(js, code, (ant_offset_t)len, false);

	if (!program \|\| js->thrown_exists) {
	ok = true;
	goto done;
	}

	for (int i = 0; i < program->args.count; i++) {
	if (
	!repl_collect_top_level_decls(
	js, program->args.items[i], &pending)
	) { ok = false; goto done; }
	}

	for (size_t i = 0; i < pending.count; i++) {
	if (repl_decl_registry_contains(reg, pending.names[i], pending.lens[i])) {
	js_mkerr_typed(
	js, JS_ERR_SYNTAX, "Identifier '%.*s' has already been declared",
	(int)pending.lens[i], pending.names[i]
	);
	ok = false; goto done;
	}
	}

	for (size_t i = 0; i < pending.count; i++) {
	if (
	!repl_decl_registry_add(
	js, reg, pending.names[i], pending.lens[i])
	) { ok = false; goto done; }
	}

	done:
	code_arena_rewind(mark);
	repl_decl_pending_free(&pending);

	if (ok && js->thrown_exists)
	repl_clear_exception_state(js);

	return ok;
	}

	typedef enum {
	REPL_PRINT_INTERACTIVE,
	REPL_PRINT_LOAD,
	} repl_print_mode_t;

	static void repl_eval_chunk(
	ant_t js, repl_decl_registry_t decl_registry,
	const char *code, size_t len,
	repl_print_mode_t print_mode
	) {
	if (!repl_precheck_and_commit_lexicals(js, decl_registry, code, len)) {
	if (js->thrown_exists) js_set(js, js_glob(js), "_error", js->thrown_value);
	print_uncaught_throw(js);
	return;
	}

	repl_clear_exception_state(js);
	ant_value_t result = js_eval_bytecode_repl(js, code, len);
	js_run_event_loop(js);

	if (js->thrown_exists) {
	js_set(js, js_glob(js), "_error", js->thrown_value);
	if (print_uncaught_throw(js)) return;
	}

	if (print_mode == REPL_PRINT_INTERACTIVE) {
	js_set(js, js_glob(js), "_", result);
	print_repl_value(js, result, stdout);
	return;
	}

	if (vtype(result) == T_ERR) fprintf(stderr, "%s\n", js_str(js, result));
	else if (vtype(result) != T_UNDEF) printf("%s\n", js_str(js, result));
	}

	static cmd_result_t cmd_help(ant_t js, history_t history, const char *arg);
	static cmd_result_t cmd_exit(ant_t js, history_t history, const char *arg);
	static cmd_result_t cmd_load(ant_t js, history_t history, const char *arg);
	static cmd_result_t cmd_save(ant_t js, history_t history, const char *arg);
	static cmd_result_t cmd_stats(ant_t js, history_t history, const char *arg);
	static cmd_result_t cmd_copy(ant_t js, history_t history, const char *arg);
	static cmd_result_t cmd_clear(ant_t js, history_t history, const char *arg);
	static cmd_result_t cmd_history(ant_t js, history_t history, const char *arg);

	static const repl_command_t commands[] = {
	{ "help", "Show this help message", false, cmd_help },
	{ "exit", "Exit the REPL", false, cmd_exit },
	{ "clear", "Clear the screen", false, cmd_clear },
	{ "history", "Show command history", false, cmd_history },
	{ "load", "Load JS from a file into the REPL session", true, cmd_load },
	{ "save", "Save all evaluated commands in this REPL session to a file", true, cmd_save },
	{ "stats", "Show memory statistics", false, cmd_stats },
	{ "copy", "Evaluate expression and copy its value", true, cmd_copy },
	{ NULL, NULL, false, NULL }
	};

	static const char repl_command_usage(const repl_command_t cmd) {
	if (!cmd \|\| !cmd->name) return "";
	if (strcmp(cmd->name, "copy") == 0) return ".copy [expr]";
	if (strcmp(cmd->name, "load") == 0) return ".load <file>";
	if (strcmp(cmd->name, "save") == 0) return ".save <file>";
	if (strcmp(cmd->name, "history") == 0) return ".history";
	if (strcmp(cmd->name, "clear") == 0) return ".clear";
	if (strcmp(cmd->name, "stats") == 0) return ".stats";
	if (strcmp(cmd->name, "exit") == 0) return ".exit";
	if (strcmp(cmd->name, "help") == 0) return ".help";
	return cmd->name;
	}

	static cmd_result_t cmd_help(ant_t js, history_t history, const char *arg) {
	printf("\n%sREPL Commands:%s\n", C_BOLD, C_RESET);
	for (const repl_command_t *cmd = commands; cmd->name; cmd++) {
	const char *usage = repl_command_usage(cmd);
	printf(" %s%-12s%s %s\n", C_CYAN, usage, C_RESET, cmd->description);
	}
	printf("\n%sKeybindings:%s\n", C_BOLD, C_RESET);
	printf(" Ctrl+C Abort current expression (press twice to exit)\n");
	printf(" Left/Right Move backward/forward one character\n");
	printf(" Home/End Jump to start/end of line\n");
	printf(" Up/Down Navigate history\n");
	printf(" Backspace Delete character backward\n");
	printf(" Delete Delete character under cursor\n");
	printf(" Enter Submit input\n");
	printf("\n%sSpecial Variables:%s\n", C_BOLD, C_RESET);
	printf(" %s_%s Last expression result\n", C_CYAN, C_RESET);
	printf(" %s_error%s Last error\n\n", C_CYAN, C_RESET);
	return CMD_OK;
	}

	static cmd_result_t cmd_exit(ant_t js, history_t history, const char *arg) {
	return CMD_EXIT;
	}

	static cmd_result_t cmd_load(ant_t js, history_t history, const char *arg) {
	(void)history;
	if (!arg \|\| *arg == '\0') {
	fprintf(stderr, "Usage: .load <filename>\n");
	return CMD_OK;
	}

	FILE *fp = fopen(arg, "r");
	if (fp == NULL) {
	fprintf(stderr, "Failed to open file: %s\n", arg);
	return CMD_OK;
	}

	fseek(fp, 0, SEEK_END);
	long file_size = ftell(fp);
	fseek(fp, 0, SEEK_SET);

	char *file_buffer = malloc(file_size + 1);
	if (file_buffer) {
	size_t len = fread(file_buffer, 1, file_size, fp);
	file_buffer[len] = '\0';
	repl_eval_chunk(
	js, g_repl_decl_registry,
	file_buffer, len, REPL_PRINT_LOAD
	);
	free(file_buffer);
	}
	fclose(fp);
	return CMD_OK;
	}

	static cmd_result_t cmd_save(ant_t js, history_t history, const char *arg) {
	if (!arg \|\| *arg == '\0') {
	fprintf(stderr, "Usage: .save <filename>\n");
	return CMD_OK;
	}

	FILE *fp = fopen(arg, "w");
	if (fp == NULL) {
	fprintf(stderr, "Failed to open file for writing: %s\n", arg);
	return CMD_OK;
	}

	for (int i = 0; i < history->count; i++) {
	fprintf(fp, "%s\n", history->lines[i]);
	}
	fclose(fp);
	printf("Session saved to %s\n", arg);
	return CMD_OK;
	}

	static cmd_result_t cmd_stats(ant_t js, history_t history, const char *arg) {
	ant_value_t stats_fn = js_get(js, rt->ant_obj, "stats");
	ant_value_t result = sv_vm_call(js->vm, js, stats_fn, js_mkundef(), NULL, 0, NULL, false);
	console_emit(js, false, NULL, &result, 1);
	return CMD_OK;
	}

	static cmd_result_t cmd_clear(ant_t js, history_t history, const char *arg) {
	fputs("\033[2J\033[H", stdout);
	fflush(stdout);
	return CMD_OK;
	}

	static cmd_result_t cmd_history(ant_t js, history_t history, const char *arg) {
	for (int i = 0; i < history->count; i++) {
	printf("%4d %s\n", i + 1, history->lines[i]);
	}
	return CMD_OK;
	}

	#ifdef _WIN32
	static bool repl_copy_with_command(const char *data, size_t len) {
	FILE *pipe = _popen("clip", "wb");
	if (!pipe) return false;

	size_t written = fwrite(data, 1, len, pipe);
	int close_rc = _pclose(pipe);
	return written == len && close_rc == 0;
	}
	#else
	static bool repl_copy_with_single_command(const char cmd, const char data, size_t len) {
	FILE *pipe = popen(cmd, "w");
	if (!pipe) return false;

	size_t written = fwrite(data, 1, len, pipe);
	int close_rc = pclose(pipe);
	return written == len && close_rc == 0;
	}

	static bool repl_copy_with_command(const char *data, size_t len) {
	static const char *cmds[] = {
	"pbcopy",
	"wl-copy",
	"xclip -selection clipboard",
	"xsel --clipboard --input",
	};
	for (size_t i = 0; i < sizeof(cmds) / sizeof(cmds[0]); i++) {
	if (repl_copy_with_single_command(cmds[i], data, len)) return true;
	}
	return false;
	}
	#endif

	static cmd_result_t cmd_copy(ant_t js, history_t history, const char *arg) {
	(void)history;
	if (!arg \|\| *arg == '\0') {
	fprintf(stderr, "Usage: .copy <expression>\n");
	return CMD_OK;
	}

	repl_clear_exception_state(js);
	ant_value_t result = js_eval_bytecode_repl(js, arg, strlen(arg));

	js_run_event_loop(js);
	if (js->thrown_exists) {
	js_set(js, js_glob(js), "_error", js->thrown_value);
	if (print_uncaught_throw(js)) return CMD_OK;
	}

	js_set(js, js_glob(js), "_", result);

	char cbuf[512];
	js_cstr_t cstr = js_to_cstr(js, result, cbuf, sizeof(cbuf));

	bool copied_command = repl_copy_with_command(cstr.ptr, cstr.len);
	if (cstr.needs_free) free((void *)cstr.ptr);

	if (!copied_command) {
	fprintf(stderr, "Failed to copy to clipboard (no clipboard command available).\n");
	return CMD_OK;
	}

	printf("Copied to clipboard.\n");
	return CMD_OK;
	}

	static cmd_result_t execute_command(ant_t js, history_t history, const char *line) {
	const char *cmd_start = line + 1;

	for (const repl_command_t *cmd = commands; cmd->name; cmd++) {
	size_t n = strlen(cmd->name);
	if (strncmp(cmd_start, cmd->name, n) != 0) continue;

	char next = cmd_start[n];
	if (cmd->has_arg && (next == ' ' \|\| next == '\0')) {
	const char *arg = cmd_start + n;
	while (*arg == ' ') arg++;
	return cmd->handler(js, history, arg);
	}
	if (!cmd->has_arg && next == '\0') return cmd->handler(js, history, NULL);
	}

	return CMD_NOT_FOUND;
	}

	typedef struct {
	int paren, bracket, brace;
	int *templates;
	int template_count, template_cap;
	char string_char;
	bool in_string, escaped;
	} parse_state_t;

	static void push_template(parse_state_t *s) {
	if (s->template_count >= s->template_cap) {
	s->template_cap = s->template_cap ? s->template_cap * 2 : 8;
	int new_templates = realloc(s->templates, s->template_cap sizeof(int));
	if (!new_templates) { return; } s->templates = new_templates;
	}
	s->templates[s->template_count++] = s->brace;
	}

	static bool in_template_text(parse_state_t *s) {
	return s->template_count > 0 && s->brace == s->templates[s->template_count - 1];
	}

	static bool is_incomplete_input(const char *code, size_t len) {
	parse_state_t s = {0};

	for (size_t i = 0; i < len; i++) {
	char c = code[i];

	if (s.escaped) { s.escaped = false; continue; }
	if (c == '\\' && (s.in_string \|\| s.template_count > 0)) { s.escaped = true; continue; }
	if (s.in_string) { if (c == s.string_char) s.in_string = false; continue; }

	if (in_template_text(&s)) {
	if (c == '`') s.template_count--;
	else if (c == '$' && i + 1 < len && code[i + 1] == '{') { s.brace++; i++; }
	continue;
	}

	if (c == '/' && i + 1 < len) {
	if (code[i + 1] == '/') { while (i < len && code[i] != '\n') i++; continue; }
	if (code[i + 1] == '*') {
	for (i += 2; i + 1 < len && !(code[i] == '*' && code[i + 1] == '/'); i++);
	if (i + 1 >= len) { free(s.templates); return true; }
	i++; continue;
	}
	if (js_regex_can_start(code, i)) {
	size_t regex_end = 0;
	if (!js_scan_regex_literal(code, len, i, &regex_end)) { free(s.templates); return true; }
	i = regex_end - 1;
	continue;
	}
	}

	switch (c) {
	case '"': case '\'': s.in_string = true; s.string_char = c; break;
	case '`': push_template(&s); break;
	case '(': s.paren++; break; case ')': s.paren--; break;
	case '[': s.bracket++; break; case ']': s.bracket--; break;
	case '{': s.brace++; break; case '}': s.brace--; break;
	}
	}

	bool incomplete = s.in_string \|\| s.template_count > 0 \|\| s.paren > 0 \|\| s.bracket > 0 \|\| s.brace > 0;
	free(s.templates);
	return incomplete;
	}

	void ant_repl_run() {
	ant_t *js = rt->js;
	ant_readline_install_signal_handler();

	js_set_filename(js, "[repl]");
	js_setup_import_meta(js, "[repl]");

	crprintf(
	"Welcome to <red+bold>Ant JavaScript</> v%s\n"
	"Type <cyan>.copy [code]</cyan> to copy, <cyan>.help</cyan> for more information.\n\n",
	ANT_VERSION
	);

	history_t history;
	ant_history_init(&history, 512);
	ant_history_load(&history);

	repl_decl_registry_t decl_registry = {0};
	g_repl_decl_registry = &decl_registry;

	js_set(js, js_glob(js), "__dirname", js_mkstr(js, ".", 1));
	js_set(js, js_glob(js), "__filename", js_mkstr(js, "[repl]", 6));

	js_set(js, js_glob(js), "_", js_mkundef());
	js_set(js, js_glob(js), "_error", js_mkundef());

	js_set_descriptor(js, js_as_obj(js_glob(js)), "_", 1, JS_DESC_W \| JS_DESC_C);
	js_set_descriptor(js, js_as_obj(js_glob(js)), "_error", 6, JS_DESC_W \| JS_DESC_C);

	int prev_ctrl_c_count = 0;
	char *multiline_buf = NULL;
	size_t multiline_len = 0;
	size_t multiline_cap = 0;

	while (1) {
	const char *prompt = multiline_buf ? "\x1b[2m\|\x1b[0m " : "\x1b[2m❯\x1b[0m ";
	highlight_state prefix_state = HL_STATE_INIT;
	if (multiline_buf && multiline_len > 0) {
	char scratch[8192];
	ant_highlight_stateful(multiline_buf, multiline_len, scratch, sizeof(scratch), &prefix_state);
	}

	fputs(prompt, stdout);
	fflush(stdout);

	char *line = NULL;
	ant_readline_result_t readline_status =
	ant_readline(&history, prompt, prefix_state, &line);

	if (readline_status == ANT_READLINE_INTERRUPT) {
	if (multiline_buf) {
	free(multiline_buf);
	multiline_buf = NULL;
	multiline_len = 0;
	multiline_cap = 0;
	prev_ctrl_c_count = 0;
	if (line) free(line);
	continue;
	}
	if (prev_ctrl_c_count > 0) {
	if (line) free(line);
	break;
	}
	printf("(To exit, press Ctrl+C again or type .exit)\n");
	prev_ctrl_c_count++;
	if (line) free(line);
	continue;
	}

	if (readline_status == ANT_READLINE_EOF \|\| line == NULL) {
	if (multiline_buf) {
	free(multiline_buf);
	multiline_buf = NULL;
	multiline_len = 0;
	multiline_cap = 0;
	continue;
	}
	break;
	}

	prev_ctrl_c_count = 0;
	size_t line_len = strlen(line);

	if (line_len == 0 && multiline_buf) {
	if (multiline_len + 1 >= multiline_cap) {
	multiline_cap = multiline_cap ? multiline_cap * 2 : 256;
	multiline_buf = realloc(multiline_buf, multiline_cap);
	}
	multiline_buf[multiline_len++] = '\n';
	multiline_buf[multiline_len] = '\0';
	free(line);
	continue;
	}

	if (line_len == 0) {
	free(line);
	continue;
	}

	if (!multiline_buf && line[0] == '.') {
	cmd_result_t result = execute_command(js, &history, line);
	if (result == CMD_EXIT) {
	free(line);
	break;
	} else if (result == CMD_NOT_FOUND) {
	printf("Unknown command: %s\n", line);
	printf("Type \".help\" for more information.\n");
	}
	free(line);
	continue;
	}

	size_t new_len = multiline_len + line_len + 1;
	if (new_len >= multiline_cap \|\| !multiline_buf) {
	multiline_cap = multiline_cap ? multiline_cap * 2 : 256;
	if (multiline_cap < new_len + 1) multiline_cap = new_len + 1;
	multiline_buf = realloc(multiline_buf, multiline_cap);
	}

	if (multiline_len > 0) {
	multiline_buf[multiline_len++] = '\n';
	}
	memcpy(multiline_buf + multiline_len, line, line_len);
	multiline_len += line_len;
	multiline_buf[multiline_len] = '\0';
	free(line);

	if (is_incomplete_input(multiline_buf, multiline_len)) continue;
	ant_history_add(&history, multiline_buf);

	repl_eval_chunk(
	js, &decl_registry, multiline_buf,
	multiline_len, REPL_PRINT_INTERACTIVE
	);

	free(multiline_buf);
	multiline_buf = NULL;
	multiline_len = 0;
	multiline_cap = 0;
	}

	if (multiline_buf) free(multiline_buf);
	ant_readline_shutdown();

	repl_decl_registry_free(&decl_registry);
	g_repl_decl_registry = NULL;

	ant_history_save(&history);
	ant_history_free(&history);
	}

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