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io.c
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io.c
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#include <compat.h> // IWYU pragma: keep
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdbool.h>
#include <ctype.h>
#include <inttypes.h>
#include <uv.h>
#include "common.h"
#include "errors.h"
#include "internal.h"
#include "runtime.h"
#include "silver/engine.h"
#include "modules/io.h"
#include "modules/symbol.h"
bool io_no_color = false;
#define JSON_KEY "\x1b[0m"
#define JSON_STRING "\x1b[32m"
#define JSON_NUMBER "\x1b[33m"
#define JSON_BOOL "\x1b[35m"
#define JSON_NULL "\x1b[90m"
#define JSON_BRACE "\x1b[37m"
#define JSON_FUNC "\x1b[36m"
#define JSON_TAG "\x1b[34m"
#define JSON_REF "\x1b[90m"
#define JSON_WHITE "\x1b[97m"
static inline bool io_is_digit_ascii(char c) {
return c >= '0' && c <= '9';
}
static void io_print(const char *str, FILE *stream) {
if (!io_no_color) {
fputs(str, stream);
return;
}
static void *states[] = {&&normal, &&esc, &&csi, &&done};
const char *p = str; char c;
goto *states[0];
normal: {
c = *p++;
if (!c) goto *states[3];
if (c == '\x1b') goto *states[1];
fputc(c, stream);
goto *states[0];
}
esc: {
c = *p++;
if (!c) goto *states[3];
if (c == '[') goto *states[2];
fputc('\x1b', stream);
fputc(c, stream);
goto *states[0];
}
csi: {
c = *p++;
if (!c) goto *states[3];
if ((c >= '0' && c <= '9') || c == ';') goto *states[2];
if (c != 'm') fputc(c, stream);
goto *states[0];
}
done: return;
}
enum char_class {
CC_OTHER, CC_NUL, CC_QUOTE, CC_ESCAPE, CC_LBRACE, CC_RBRACE,
CC_LBRACK, CC_RBRACK, CC_COLON, CC_COMMA, CC_NEWLINE,
CC_DIGIT, CC_MINUS, CC_ALPHA, CC_IDENT, CC_LT, CC_GT
};
static const uint8_t char_class_table[256] = {
[0] = CC_NUL,
['\n'] = CC_NEWLINE, ['"'] = CC_QUOTE, ['\''] = CC_QUOTE, ['\\'] = CC_ESCAPE,
['{'] = CC_LBRACE, ['}'] = CC_RBRACE, ['['] = CC_LBRACK, [']'] = CC_RBRACK,
[':'] = CC_COLON, [','] = CC_COMMA, ['-'] = CC_MINUS, ['<'] = CC_LT, ['>'] = CC_GT,
['_'] = CC_IDENT, ['$'] = CC_IDENT,
['0'] = CC_DIGIT, ['1'] = CC_DIGIT, ['2'] = CC_DIGIT, ['3'] = CC_DIGIT,
['4'] = CC_DIGIT, ['5'] = CC_DIGIT, ['6'] = CC_DIGIT, ['7'] = CC_DIGIT,
['8'] = CC_DIGIT, ['9'] = CC_DIGIT,
['a'] = CC_ALPHA, ['b'] = CC_ALPHA, ['c'] = CC_ALPHA, ['d'] = CC_ALPHA,
['e'] = CC_ALPHA, ['f'] = CC_ALPHA, ['g'] = CC_ALPHA, ['h'] = CC_ALPHA,
['i'] = CC_ALPHA, ['j'] = CC_ALPHA, ['k'] = CC_ALPHA, ['l'] = CC_ALPHA,
['m'] = CC_ALPHA, ['n'] = CC_ALPHA, ['o'] = CC_ALPHA, ['p'] = CC_ALPHA,
['q'] = CC_ALPHA, ['r'] = CC_ALPHA, ['s'] = CC_ALPHA, ['t'] = CC_ALPHA,
['u'] = CC_ALPHA, ['v'] = CC_ALPHA, ['w'] = CC_ALPHA, ['x'] = CC_ALPHA,
['y'] = CC_ALPHA, ['z'] = CC_ALPHA,
['A'] = CC_ALPHA, ['B'] = CC_ALPHA, ['C'] = CC_ALPHA, ['D'] = CC_ALPHA,
['E'] = CC_ALPHA, ['F'] = CC_ALPHA, ['G'] = CC_ALPHA, ['H'] = CC_ALPHA,
['I'] = CC_ALPHA, ['J'] = CC_ALPHA, ['K'] = CC_ALPHA, ['L'] = CC_ALPHA,
['M'] = CC_ALPHA, ['N'] = CC_ALPHA, ['O'] = CC_ALPHA, ['P'] = CC_ALPHA,
['Q'] = CC_ALPHA, ['R'] = CC_ALPHA, ['S'] = CC_ALPHA, ['T'] = CC_ALPHA,
['U'] = CC_ALPHA, ['V'] = CC_ALPHA, ['W'] = CC_ALPHA, ['X'] = CC_ALPHA,
['Y'] = CC_ALPHA, ['Z'] = CC_ALPHA,
};
static int io_iso_utc_token_len(const char *p) {
int i = 0;
if (*p == '+' || *p == '-') {
i++;
for (int d = 0; d < 6; d++, i++) if (!io_is_digit_ascii(p[i])) return 0;
} else for (int d = 0; d < 4; d++, i++) if (!io_is_digit_ascii(p[i])) return 0;
if (p[i++] != '-') return 0;
if (!io_is_digit_ascii(p[i++]) || !io_is_digit_ascii(p[i++])) return 0;
if (p[i++] != '-') return 0;
if (!io_is_digit_ascii(p[i++]) || !io_is_digit_ascii(p[i++])) return 0;
if (p[i++] != 'T') return 0;
if (!io_is_digit_ascii(p[i++]) || !io_is_digit_ascii(p[i++])) return 0;
if (p[i++] != ':') return 0;
if (!io_is_digit_ascii(p[i++]) || !io_is_digit_ascii(p[i++])) return 0;
if (p[i++] != ':') return 0;
if (!io_is_digit_ascii(p[i++]) || !io_is_digit_ascii(p[i++])) return 0;
if (p[i++] != '.') return 0;
if (!io_is_digit_ascii(p[i++]) || !io_is_digit_ascii(p[i++]) || !io_is_digit_ascii(p[i++])) return 0;
if (p[i++] != 'Z') return 0;
char boundary = p[i];
if (
!(boundary == '\0'
|| boundary == ' '
|| boundary == '\t'
|| boundary == '\n'
|| boundary == ','
|| boundary == ']'
|| boundary == '}'
|| boundary == ')'
|| boundary == '>')
) return 0;
return i;
}
#define KEYWORD(kw, color) \
if (memcmp(p, kw, sizeof(kw) - 1) == 0 && !isalnum((unsigned char)p[sizeof(kw) - 1]) && p[sizeof(kw) - 1] != '_') { \
fputs(color, stream); fputs(kw, stream); fputs(C_RESET, stream); \
p += sizeof(kw) - 1; goto next; \
}
#define EMIT_UNTIL(end_char, color) \
fputs(color, stream); \
while (*p && *p != end_char) fputc(*p++, stream); \
if (*p == end_char) fputc(*p++, stream); \
fputs(C_RESET, stream); goto next;
#define EMIT_TYPE(tag, len, color) \
if (!(is_key && brace_depth > 0) && memcmp(p, tag, len) == 0) { \
fputs(color, stream); fputs(tag, stream); fputs(C_RESET, stream); \
p += len; goto next; \
}
void print_value_colored(const char *str, FILE *stream) {
if (io_no_color) { io_print(str, stream); return; }
static void *dispatch[] = {
[CC_NUL] = &&done, [CC_QUOTE] = &&quote, [CC_ESCAPE] = &&other,
[CC_LBRACE] = &&lbrace, [CC_RBRACE] = &&rbrace,
[CC_LBRACK] = &&lbrack, [CC_RBRACK] = &&rbrack,
[CC_COLON] = &&colon, [CC_COMMA] = &&separator, [CC_NEWLINE] = &&separator,
[CC_DIGIT] = &&number, [CC_MINUS] = &&minus,
[CC_ALPHA] = &&alpha, [CC_IDENT] = &&ident, [CC_LT] = &&lt, [CC_GT] = &&gt, [CC_OTHER] = &&other
};
const char *p = str;
char string_char = 0;
int brace_depth = 0, array_depth = 0;
bool is_key = true;
goto next;
next:
goto *dispatch[char_class_table[(unsigned char)*p]];
done:
return;
quote:
string_char = *p;
fputs((is_key && brace_depth > 0) ? JSON_KEY : JSON_STRING, stream);
fputc(*p++, stream);
while (*p) {
if (*p == '\\' && p[1]) { fputc(*p++, stream); fputc(*p++, stream); continue; }
if (*p == string_char) { fputc(*p++, stream); break; }
fputc(*p++, stream);
}
fputs(C_RESET, stream);
goto next;
lbrace:
fputs(JSON_BRACE, stream); fputc(*p++, stream); fputs(C_RESET, stream);
brace_depth++; is_key = true; goto next;
rbrace:
fputs(JSON_BRACE, stream); fputc(*p++, stream); fputs(C_RESET, stream);
brace_depth--; is_key = false; goto next;
lbrack:
switch (p[1]) {
case 'A': if (memcmp(p + 2, "syncFunction", 7) == 0) { EMIT_UNTIL(']', JSON_FUNC) } break;
case 'b': if (memcmp(p + 2, "yte", 3) == 0 || memcmp(p + 2, "uffer]", 6) == 0) { EMIT_UNTIL(']', JSON_STRING) } break;
case 'F': if (memcmp(p + 2, "unction", 7) == 0) { EMIT_UNTIL(']', JSON_FUNC) } break;
case 'n': if (memcmp(p + 2, "ative code", 10) == 0) { EMIT_UNTIL(']', JSON_FUNC) } break;
case 'C': if (memcmp(p + 2, "ircular", 7) == 0) { EMIT_UNTIL(']', JSON_REF) } break;
case 'G': if (memcmp(p + 2, "etter/Setter]", 13) == 0 || memcmp(p + 2, "etter]", 6) == 0) { EMIT_UNTIL(']', JSON_FUNC) } break;
case 'S': if (memcmp(p + 2, "etter]", 6) == 0) { EMIT_UNTIL(']', JSON_FUNC) } break;
case 'O': if (memcmp(p + 2, "bject: null prototype]", 22) == 0) { EMIT_UNTIL(']', JSON_TAG) } break;
case 'M': if (memcmp(p + 2, "odule]", 6) == 0) { EMIT_UNTIL(']', JSON_TAG) } break;
case 'U': if (memcmp(p + 2, "int8Contents]", 13) == 0) { EMIT_UNTIL(']', JSON_FUNC) } break;
case 'P': if (memcmp(p + 2, "romise]", 7) == 0) { EMIT_UNTIL(']', JSON_TAG) } break;
}
fputs(JSON_BRACE, stream); fputc(*p++, stream); fputs(C_RESET, stream);
array_depth++; is_key = false; goto next;
rbrack:
fputs(JSON_BRACE, stream); fputc(*p++, stream); fputs(C_RESET, stream);
array_depth--; is_key = false; goto next;
colon:
fputc(*p++, stream); is_key = false; goto next;
separator:
fputc(*p++, stream);
is_key = (brace_depth > 0 && array_depth == 0);
goto next;
number:
{
int iso_len = io_iso_utc_token_len(p);
if (iso_len > 0) {
fputs(C_MAGENTA, stream);
for (int k = 0; k < iso_len; k++) fputc(*p++, stream);
fputs(C_RESET, stream);
goto next;
}
}
fputs(JSON_NUMBER, stream);
while ((*p >= '0' && *p <= '9') || *p == '.' || *p == 'e' || *p == 'E' || *p == '+' || *p == '-')
fputc(*p++, stream);
fputs(C_RESET, stream);
goto next;
minus:
{
int iso_len = io_iso_utc_token_len(p);
if (iso_len > 0) {
fputs(C_MAGENTA, stream);
for (int k = 0; k < iso_len; k++) fputc(*p++, stream);
fputs(C_RESET, stream);
goto next;
}
}
if (memcmp(p + 1, "Infinity", 8) == 0 && !isalnum((unsigned char)p[9]) && p[9] != '_') {
fputs(JSON_NUMBER, stream); fputs("-Infinity", stream); fputs(C_RESET, stream);
p += 9; goto next;
}
if (p[1] >= '0' && p[1] <= '9') {
fputs(JSON_NUMBER, stream); fputc(*p++, stream);
while ((*p >= '0' && *p <= '9') || *p == '.' || *p == 'e' || *p == 'E' || *p == '+' || *p == '-')
fputc(*p++, stream);
fputs(C_RESET, stream);
goto next;
}
fputc(*p++, stream); goto next;
lt:
if (memcmp(p, "<ref", 4) == 0) { EMIT_UNTIL('>', JSON_REF) }
if (memcmp(p, "<pen", 4) == 0) { is_key = false; EMIT_UNTIL('>', C_CYAN) }
if (memcmp(p, "<rej", 4) == 0) { is_key = false; EMIT_UNTIL('>', C_CYAN) }
if (p[1] == '>' || (isxdigit((unsigned char)p[1]) && isxdigit((unsigned char)p[2]))) {
fputs(JSON_BRACE, stream); fputc(*p++, stream);
fputs(JSON_WHITE, stream);
while (*p && *p != '>') fputc(*p++, stream);
fputs(C_RESET, stream);
if (*p == '>') { fputs(JSON_BRACE, stream); fputc(*p++, stream); fputs(C_RESET, stream); }
goto next;
}
fputs(JSON_BRACE, stream); fputc(*p++, stream); fputs(C_RESET, stream);
goto next;
gt:
fputs(JSON_BRACE, stream); fputc(*p++, stream); fputs(C_RESET, stream);
goto next;
alpha:
if (memcmp(p, "Object [", 8) == 0) { EMIT_UNTIL(']', JSON_TAG) }
if (memcmp(p, "Symbol(", 7) == 0) { EMIT_UNTIL(')', JSON_STRING) }
EMIT_TYPE("Map", 3, JSON_STRING)
EMIT_TYPE("Set", 3, JSON_STRING)
KEYWORD("true", JSON_BOOL)
KEYWORD("false", JSON_BOOL)
KEYWORD("null", JSON_NULL)
KEYWORD("undefined", JSON_NULL)
KEYWORD("Infinity", JSON_NUMBER)
KEYWORD("NaN", JSON_NUMBER)
ident:
if (is_key && brace_depth > 0) {
fputs(JSON_KEY, stream);
while (isalnum((unsigned char)*p) || *p == '_' || *p == '$') fputc(*p++, stream);
fputs(C_RESET, stream);
goto next;
}
fputc(*p++, stream); goto next;
other:
if (*p == '+') {
int iso_len = io_iso_utc_token_len(p);
if (iso_len > 0) {
fputs(C_MAGENTA, stream);
for (int k = 0; k < iso_len; k++) fputc(*p++, stream);
fputs(C_RESET, stream);
goto next;
}
}
fputc(*p++, stream); goto next;
}
#undef KEYWORD
#undef EMIT_UNTIL
void print_repl_value(ant_t *js, jsval_t val, FILE *stream) {
if (vtype(val) == T_STR) {
char *str = js_getstr(js, val, NULL);
fprintf(stream, "%s'%s'%s\n", C(JSON_STRING), str ? str : "", C(C_RESET));
return;
}
char cbuf[512];
js_cstr_t cstr = js_to_cstr(js, val, cbuf, sizeof(cbuf));
if (vtype(val) == T_ERR) fprintf(stderr, "%s\n", cstr.ptr); else {
print_value_colored(cstr.ptr, stream);
fputc('\n', stream);
}
if (cstr.needs_free) free((void *)cstr.ptr);
}
jsval_t console_print(ant_t *js, jsval_t *args, int nargs, const char *color, FILE *stream) {
if (color && !io_no_color) fputs(color, stream);
for (int i = 0; i < nargs; i++) {
if (i) fputc(' ', stream);
if (vtype(args[i]) == T_OBJ) {
const char *stack = get_str_prop(js, args[i], "stack", 5, NULL);
if (stack) { io_print(stack, stream); continue; }
}
char cbuf[512];
js_cstr_t cstr = js_to_cstr(js, args[i], cbuf, sizeof(cbuf));
if (vtype(args[i]) == T_STR) io_print(cstr.ptr, stream); else {
if (color && !io_no_color) fputs(C_RESET, stream);
print_value_colored(cstr.ptr, stream);
if (color && !io_no_color) fputs(color, stream);
}
if (cstr.needs_free) free((void *)cstr.ptr);
}
if (color && !io_no_color) fputs(C_RESET, stream);
fputc('\n', stream);
return js_mkundef();
}
static jsval_t js_console_log(ant_t *js, jsval_t *args, int nargs) {
return console_print(js, args, nargs, NULL, stdout);
}
static jsval_t js_console_error(ant_t *js, jsval_t *args, int nargs) {
return console_print(js, args, nargs, C_RED, stderr);
}
static jsval_t js_console_warn(ant_t *js, jsval_t *args, int nargs) {
return console_print(js, args, nargs, C_YELLOW, stderr);
}
static jsval_t js_console_assert(ant_t *js, jsval_t *args, int nargs) {
if (nargs < 1) return js_mkundef();
bool is_truthy = js_truthy(js, args[0]);
if (is_truthy) return js_mkundef();
fputs("Assertion failed", stderr);
if (nargs > 1) {
fputs(": ", stderr);
console_print(js, args + 1, nargs - 1, NULL, stderr);
return js_mkundef();
}
fputc('\n', stderr);
return js_mkundef();
}
static jsval_t js_console_trace(ant_t *js, jsval_t *args, int nargs) {
fputs("Trace", stderr);
if (nargs > 0) {
fputs(": ", stderr);
console_print(js, args, nargs, NULL, stderr);
} else fputc('\n', stderr);
js_print_stack_trace_vm(js, stderr);
return js_mkundef();
}
static jsval_t js_console_info(ant_t *js, jsval_t *args, int nargs) {
return console_print(js, args, nargs, C_CYAN, stdout);
}
static jsval_t js_console_debug(ant_t *js, jsval_t *args, int nargs) {
return console_print(js, args, nargs, C_MAGENTA, stdout);
}
static jsval_t js_console_clear(ant_t *js, jsval_t *args, int nargs) {
if (!io_no_color) {
fprintf(stdout, "\033[2J\033[H");
fflush(stdout);
}
return js_mkundef();
}
static struct { char *label; double start_time; } console_timers[64];
static int console_timer_count = 0;
static jsval_t js_console_time(ant_t *js, jsval_t *args, int nargs) {
const char *label = "default";
if (nargs > 0 && vtype(args[0]) == T_STR) {
label = js_getstr(js, args[0], NULL);
}
for (int i = 0; i < console_timer_count; i++) {
if (strcmp(console_timers[i].label, label) == 0) {
fprintf(stderr, "Timer '%s' already exists\n", label);
return js_mkundef();
}
}
if (console_timer_count < 64) {
console_timers[console_timer_count].label = strdup(label);
console_timers[console_timer_count].start_time = (double)uv_hrtime() / 1e6;
console_timer_count++;
}
return js_mkundef();
}
static jsval_t js_console_timeEnd(ant_t *js, jsval_t *args, int nargs) {
const char *label = "default";
if (nargs > 0 && vtype(args[0]) == T_STR) {
label = js_getstr(js, args[0], NULL);
}
for (int i = 0; i < console_timer_count; i++) {
if (strcmp(console_timers[i].label, label) == 0) {
double elapsed = ((double)uv_hrtime() / 1e6) - console_timers[i].start_time;
fprintf(stdout, "%s: %.3fms\n", label, elapsed);
free(console_timers[i].label);
for (int j = i; j < console_timer_count - 1; j++) {
console_timers[j] = console_timers[j + 1];
}
console_timer_count--;
return js_mkundef();
}
}
fprintf(stderr, "Timer '%s' does not exist\n", label);
return js_mkundef();
}
static const char *get_slot_name(internal_slot_t slot) {
static const char *slot_names[] = {
[SLOT_NONE] = "NONE",
[SLOT_PID] = "PID",
[SLOT_ASYNC] = "ASYNC",
[SLOT_WITH] = "WITH",
[SLOT_THIS] = "THIS",
[SLOT_NEW_TARGET] = "NEW_TARGET",
[SLOT_BOUND_THIS] = "BOUND_THIS",
[SLOT_BOUND_ARGS] = "BOUND_ARGS",
[SLOT_FIELD_COUNT] = "FIELD_COUNT",
[SLOT_FIELDS] = "FIELDS",
[SLOT_STRICT] = "STRICT",
[SLOT_CODE] = "CODE",
[SLOT_CODE_LEN] = "CODE_LEN",
[SLOT_CFUNC] = "CFUNC",
[SLOT_CORO] = "CORO",
[SLOT_ARROW] = "ARROW",
[SLOT_PROTO] = "PROTO",
[SLOT_FUNC_PROTO] = "FUNC_PROTO",
[SLOT_ASYNC_PROTO] = "ASYNC_PROTO",
[SLOT_FROZEN] = "FROZEN",
[SLOT_SEALED] = "SEALED",
[SLOT_EXTENSIBLE] = "EXTENSIBLE",
[SLOT_BUFFER] = "BUFFER",
[SLOT_TARGET_FUNC] = "TARGET_FUNC",
[SLOT_NAME] = "NAME",
[SLOT_MAP] = "MAP",
[SLOT_SET] = "SET",
[SLOT_PRIMITIVE] = "PRIMITIVE",
[SLOT_PROXY_REF] = "PROXY_REF",
[SLOT_BUILTIN] = "BUILTIN",
[SLOT_DATA] = "DATA",
[SLOT_CTOR] = "CTOR",
[SLOT_SUPER] = "SUPER",
[SLOT_DEFAULT_CTOR] = "DEFAULT_CTOR",
[SLOT_DEFAULT] = "DEFAULT",
[SLOT_ERROR_BRAND] = "ERROR_BRAND",
[SLOT_ERR_TYPE] = "ERR_TYPE",
[SLOT_OBSERVABLE_SUBSCRIBER] = "OBSERVABLE_SUBSCRIBER",
[SLOT_SUBSCRIPTION_OBSERVER] = "SUBSCRIPTION_OBSERVER",
[SLOT_SUBSCRIPTION_CLEANUP] = "SUBSCRIPTION_CLEANUP",
[SLOT_HOISTED_VARS] = "HOISTED_VARS",
[SLOT_HOISTED_VARS_LEN] = "HOISTED_VARS_LEN",
[SLOT_STRICT_ARGS] = "STRICT_ARGS",
[SLOT_NO_FUNC_DECLS] = "NO_FUNC_DECLS",
[SLOT_ITER_STATE] = "ITER_STATE",
[SLOT_ENTRIES] = "ENTRIES",
[SLOT_DENSE_BUF] = "DENSE_BUF",
};
if (slot < sizeof(slot_names) / sizeof(slot_names[0]) && slot_names[slot]) {
return slot_names[slot];
}
return "UNKNOWN";
}
static const char *get_type_name(int type) {
static const char *type_names[] = {
[T_OBJ] = "object",
[T_PROP] = "property",
[T_STR] = "string",
[T_UNDEF] = "undefined",
[T_NULL] = "null",
[T_NUM] = "number",
[T_BOOL] = "boolean",
[T_FUNC] = "function",
[T_CFUNC] = "function",
[T_ERR] = "error",
[T_ARR] = "array",
[T_PROMISE] = "Promise",
[T_TYPEDARRAY] = "TypedArray",
[T_BIGINT] = "bigint",
[T_SYMBOL] = "symbol",
[T_GENERATOR] = "Generator",
[T_FFI] = "ffi"
};
size_t num_types = sizeof(type_names) / sizeof(type_names[0]);
if (type < 0 || (size_t)type >= num_types) return "unknown";
return type_names[type] ? type_names[type] : "unknown";
}
static bool inspect_was_visited(inspect_visited_t *v, jsoff_t off) {
for (int i = 0; i < v->count; i++) if (v->visited[i] == off) return true;
return false;
}
static void inspect_print_indent(FILE *stream, int depth) {
for (int i = 0; i < depth; i++) fprintf(stream, " ");
}
static void inspect_mark_visited(inspect_visited_t *v, jsoff_t off) {
if (v->count >= v->capacity) {
v->capacity = v->capacity ? v->capacity * 2 : 32;
v->visited = realloc(v->visited, v->capacity * sizeof(jsoff_t));
}
v->visited[v->count++] = off;
}
void inspect_value(ant_t *js, jsval_t val, FILE *stream, int depth, inspect_visited_t *visited) {
int t = vtype(val);
if (t == T_UNDEF) { fprintf(stream, "undefined"); return; }
if (t == T_NULL) { fprintf(stream, "null"); return; }
if (t == T_BOOL) { fprintf(stream, val == js_true ? "true" : "false"); return; }
if (t == T_NUM) { fprintf(stream, "%g", js_getnum(val)); return; }
if (t == T_ERR) { fprintf(stream, "[Error]"); return; }
if (t == T_STR) {
size_t len;
char *str = js_getstr(js, val, &len);
fprintf(stream, "\"%.*s\"", (int)len, str ? str : "");
return;
}
if (t == T_SYMBOL) {
const char *desc = js_sym_desc(js, val);
fprintf(stream, "Symbol(%s)", desc ? desc : "");
return;
}
if (t == T_OBJ || t == T_FUNC || t == T_PROMISE || t == T_ARR) {
if (depth > 10) fprintf(stream, "<%s @%" PRIu64 " ...>", get_type_name(t), (uint64_t)vdata(js_as_obj(val)));
else inspect_object(js, val, stream, depth, visited);
return;
}
if (t == T_CFUNC) {
fprintf(stream, "<native function 0x%" PRIx64 ">", (uint64_t)vdata(val));
return;
}
fprintf(stream, "<%s rawtype=%d data=%" PRIu64 ">", get_type_name(t), vtype(val), (uint64_t)vdata(val));
}
void inspect_object(ant_t *js, jsval_t obj, FILE *stream, int depth, inspect_visited_t *visited) {
int type = vtype(obj);
obj = js_as_obj(obj);
jsoff_t obj_off = (jsoff_t)vdata(obj);
if (inspect_was_visited(visited, obj_off)) {
fprintf(stream, "[Circular *%llu]", (u64)obj_off);
return;
}
inspect_mark_visited(visited, obj_off);
fprintf(stream, "<%s @%llu> {\n", type == T_FUNC ? "Function" : (type == T_PROMISE ? "Promise" : "Object"), (u64)obj_off);
int inner_depth = depth + 1;
inspect_print_indent(stream, inner_depth);
fprintf(stream, "[[Slots]]: {\n");
for (int slot = SLOT_NONE + 1; slot < SLOT_MAX; slot++) {
jsval_t slot_val = js_get_slot(js, obj, (internal_slot_t)slot);
int t = vtype(slot_val);
if (t == T_UNDEF) continue;
inspect_print_indent(stream, inner_depth + 1);
fprintf(stream, "[[%s]]: ", get_slot_name((internal_slot_t)slot));
switch (slot) {
case SLOT_CODE:
case SLOT_CFUNC:
case SLOT_HOISTED_VARS:
fprintf(stream, "<native ptr 0x%" PRIx64 ">", (uint64_t)vdata(slot_val));
break;
case SLOT_CODE_LEN:
case SLOT_HOISTED_VARS_LEN:
fprintf(stream, "%.0f", js_getnum(slot_val));
break;
default:
if ((t == T_OBJ || t == T_FUNC || t == T_PROMISE) && inspect_was_visited(visited, (jsoff_t)vdata(js_as_obj(slot_val))))
fprintf(stream, "[Circular *%llu]", (u64)vdata(js_as_obj(slot_val)));
else if (t == T_OBJ || t == T_FUNC || t == T_PROMISE)
fprintf(stream, "<%s @%llu>", get_type_name(t), (u64)vdata(js_as_obj(slot_val)));
else
inspect_value(js, slot_val, stream, inner_depth + 1, visited);
break;
}
fprintf(stream, "\n");
}
inspect_print_indent(stream, inner_depth);
fprintf(stream, "}\n");
inspect_print_indent(stream, inner_depth);
fprintf(stream, "[[Properties]]: {\n");
ant_iter_t iter = js_prop_iter_begin(js, obj);
const char *key;
size_t key_len;
jsval_t value;
while (js_prop_iter_next(&iter, &key, &key_len, &value)) {
inspect_print_indent(stream, inner_depth + 1);
fprintf(stream, "\"%.*s\": ", (int)key_len, key);
inspect_value(js, value, stream, inner_depth + 1, visited);
fprintf(stream, "\n");
}
js_prop_iter_end(&iter);
inspect_print_indent(stream, inner_depth);
fprintf(stream, "}\n");
jsval_t proto = js_get_proto(js, obj);
inspect_print_indent(stream, inner_depth);
fprintf(stream, "[[Prototype]]: ");
if (vtype(proto) == T_NULL) {
fprintf(stream, "null\n");
} else {
fprintf(stream, "\n");
inspect_print_indent(stream, inner_depth);
inspect_value(js, proto, stream, inner_depth, visited);
fprintf(stream, "\n");
}
inspect_print_indent(stream, depth);
fprintf(stream, "}");
}
static jsval_t js_console_inspect(ant_t *js, jsval_t *args, int nargs) {
FILE *stream = stdout;
inspect_visited_t visited = {0};
for (int i = 0; i < nargs; i++) {
if (i > 0) fprintf(stream, " ");
inspect_value(js, args[i], stream, 0, &visited);
}
fprintf(stream, "\n");
if (visited.visited) free(visited.visited);
return js_mkundef();
}
void init_console_module() {
ant_t *js = rt->js;
jsval_t console_obj = js_mkobj(js);
js_set(js, console_obj, "log", js_mkfun(js_console_log));
js_set(js, console_obj, "error", js_mkfun(js_console_error));
js_set(js, console_obj, "warn", js_mkfun(js_console_warn));
js_set(js, console_obj, "info", js_mkfun(js_console_info));
js_set(js, console_obj, "debug", js_mkfun(js_console_debug));
js_set(js, console_obj, "assert", js_mkfun(js_console_assert));
js_set(js, console_obj, "trace", js_mkfun(js_console_trace));
js_set(js, console_obj, "time", js_mkfun(js_console_time));
js_set(js, console_obj, "timeEnd", js_mkfun(js_console_timeEnd));
js_set(js, console_obj, "clear", js_mkfun(js_console_clear));
js_set(js, console_obj, "inspect", js_mkfun(js_console_inspect));
js_set_sym(js, console_obj, get_toStringTag_sym(), js_mkstr(js, "console", 7));
js_set(js, js_glob(js), "console", console_obj);
}

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