static ejsval
_ejs_RegExp_impl (ejsval env, ejsval _this, uint32_t argc, ejsval *args)
{
EJSRegExp *re;
if (EJSVAL_IS_UNDEFINED(_this)) {
// called as a function
_this = _ejs_object_new(_ejs_RegExp_prototype, &_ejs_RegExp_specops);
}
re = (EJSRegExp*)EJSVAL_TO_OBJECT(_this);
re->pattern = _ejs_undefined;
re->flags = _ejs_undefined;
if (argc > 0) re->pattern = args[0];
if (argc > 1) re->flags = args[1];
if (!EJSVAL_IS_STRING(re->pattern))
EJS_NOT_IMPLEMENTED();
EJSPrimString *flat_pattern = _ejs_string_flatten (re->pattern);
jschar* chars = flat_pattern->data.flat;
const unsigned char* pcre16_tables = pcre16_maketables();
const char *pcre_error;
int pcre_erroffset;
re->compiled_pattern = pcre16_compile(chars,
PCRE_UTF16 | PCRE_NO_UTF16_CHECK,
&pcre_error, &pcre_erroffset,
pcre16_tables);
_ejs_object_define_value_property (_this, _ejs_atom_source, re->pattern, EJS_PROP_NOT_ENUMERABLE | EJS_PROP_NOT_CONFIGURABLE | EJS_PROP_NOT_WRITABLE);
if (EJSVAL_IS_STRING(re->flags)) {
EJSPrimString *flat_flags = _ejs_string_flatten(re->flags);
chars = flat_flags->data.flat;
for (int i = 0; i < flat_flags->length; i ++) {
if (chars[i] == 'g' && !re->global) { re->global = EJS_TRUE; continue; }
else if (chars[i] == 'i' && !re->ignoreCase) { re->ignoreCase = EJS_TRUE; continue; }
else if (chars[i] == 'm' && !re->multiline) { re->multiline = EJS_TRUE; continue; }
else if (chars[i] == 'y' && !re->sticky) { re->sticky = EJS_TRUE; continue; }
else if (chars[i] == 'u' && !re->unicode) { re->unicode = EJS_TRUE; continue; }
_ejs_throw_nativeerror_utf8 (EJS_SYNTAX_ERROR, "Invalid flag supplied to RegExp constructor");
}
}
return _this;
}
static ejsval
_ejs_arguments_specop_get (ejsval obj, ejsval propertyName, ejsval receiver)
{
EJSArguments* arguments = EJSVAL_TO_ARGUMENTS(obj);
// check if propertyName is an integer, or a string that we can convert to an int
EJSBool is_index = EJS_FALSE;
ejsval idx_val = ToNumber(propertyName);
int idx;
if (EJSVAL_IS_NUMBER(idx_val)) {
double n = EJSVAL_TO_NUMBER(idx_val);
if (floor(n) == n) {
idx = (int)n;
is_index = EJS_TRUE;
}
}
if (is_index) {
if (idx < 0 || idx > arguments->argc) {
printf ("getprop(%d) on an arguments, returning undefined\n", idx);
return _ejs_undefined;
}
return arguments->args[idx];
}
// we also handle the length getter here
if (EJSVAL_IS_STRING(propertyName) && !ucs2_strcmp (_ejs_ucs2_length, EJSVAL_TO_FLAT_STRING(propertyName))) {
return NUMBER_TO_EJSVAL(arguments->argc);
}
// otherwise we fallback to the object implementation
return _ejs_Object_specops.Get (obj, propertyName, receiver);
}
// returns an EJSPrimString*.
// maybe we could change it to return a char* to match ToDouble? that way string concat wouldn't create
// temporary strings for non-PrimString objects only to throw them away after concatenation?
ejsval ToString(ejsval exp)
{
if (EJSVAL_IS_MAGIC_IMPL(exp)) {
// holes in dense arrays end up here
return _ejs_atom_empty;
}
else if (EJSVAL_IS_NULL(exp))
return _ejs_atom_null;
else if (EJSVAL_IS_UNDEFINED(exp))
return _ejs_atom_undefined;
else if (EJSVAL_IS_BOOLEAN(exp))
return EJSVAL_TO_BOOLEAN(exp) ? _ejs_atom_true : _ejs_atom_false;
else if (EJSVAL_IS_NUMBER(exp))
return NumberToString(EJSVAL_TO_NUMBER(exp));
else if (EJSVAL_IS_STRING(exp))
return exp;
else if (EJSVAL_IS_OBJECT(exp)) {
ejsval toString = _ejs_object_getprop (exp, _ejs_atom_toString);
if (!EJSVAL_IS_FUNCTION(toString)) {
return _ejs_Object_prototype_toString(_ejs_null, exp, 0, NULL);
}
// should we be checking if this returns a string? i'd assume so...
return _ejs_invoke_closure (toString, exp, 0, NULL);
}
else
EJS_NOT_IMPLEMENTED();
}
static ejsval
_ejs_arraybuffer_specop_get (ejsval obj, ejsval propertyName, ejsval receiver)
{
// check if propertyName is an integer, or a string that we can convert to an int
EJSBool is_index = EJS_FALSE;
int idx = 0;
if (EJSVAL_IS_NUMBER(propertyName)) {
double n = EJSVAL_TO_NUMBER(propertyName);
if (floor(n) == n) {
idx = (int)n;
is_index = EJS_TRUE;
}
}
if (is_index) {
if (idx < 0 || idx > EJS_ARRAY_LEN(obj)) {
printf ("getprop(%d) on an array, returning undefined\n", idx);
return _ejs_undefined;
}
return EJS_DENSE_ARRAY_ELEMENTS(obj)[idx];
}
// we also handle the length getter here
if (EJSVAL_IS_STRING(propertyName) && !ucs2_strcmp (_ejs_ucs2_byteLength, EJSVAL_TO_FLAT_STRING(propertyName))) {
return NUMBER_TO_EJSVAL (EJS_ARRAY_BUFFER_BYTE_LEN(obj));
}
// otherwise we fallback to the object implementation
return _ejs_Object_specops.get (obj, propertyName, receiver);
}
static EJS_NATIVE_FUNC(_ejs_Process_chdir) {
ejsval dir = _ejs_undefined;
if (argc > 0)
dir = args[0];
if (!EJSVAL_IS_STRING(dir))
_ejs_throw_nativeerror_utf8 (EJS_TYPE_ERROR, "chdir passed non-string");
char *dir_utf8 = ucs2_to_utf8(EJSVAL_TO_FLAT_STRING(dir));
chdir(dir_utf8);
free(dir_utf8);
return _ejs_undefined;
}
// same as SameValue, except in its treatment of +/- 0
EJSBool
SameValueZero(ejsval x, ejsval y)
{
// 1. ReturnIfAbrupt(x).
// 2. ReturnIfAbrupt(y).
// 3. If Type(x) is different from Type(y), return false.
if (EJSVAL_TO_TAG(x) != EJSVAL_TO_TAG(y)) return EJS_FALSE;
// 4. If Type(x) is Undefined, return true.
if (EJSVAL_IS_UNDEFINED(x)) return EJS_TRUE;
// 5. If Type(x) is Null, return true.
if (EJSVAL_IS_NULL(x)) return EJS_TRUE;
// 6. If Type(x) is Number, then
if (EJSVAL_IS_NUMBER(x)) {
// a. If x is NaN and y is NaN, return true.
if (isnan(EJSVAL_TO_NUMBER(x)) && isnan(EJSVAL_TO_NUMBER(y))) return EJS_TRUE;
// b. If x is +0 and y is -0, return true.
if (EJSVAL_TO_NUMBER(x) == 0.0 && EJSDOUBLE_IS_NEGZERO(EJSVAL_TO_NUMBER(y))) return EJS_TRUE;
// c. If x is -0 and y is +0, return tryue.
if (EJSDOUBLE_IS_NEGZERO(EJSVAL_TO_NUMBER(x)) == 0.0 && EJSVAL_TO_NUMBER(y) == 0) return EJS_TRUE;
// d. If x is the same Number value as y, return true.
if (EJSVAL_TO_NUMBER(x) == EJSVAL_TO_NUMBER(y)) return EJS_TRUE;
// e. Return false.
return EJS_FALSE;
}
// 7. If Type(x) is String, then
if (EJSVAL_IS_STRING(x)) {
// a. If x and y are exactly the same sequence of code units (same length and same code units in corresponding positions) return true;
// otherwise, return false.
if (EJSVAL_TO_STRLEN(x) != EJSVAL_TO_STRLEN(y)) return EJS_FALSE;
// XXX there is doubtless a more efficient way to compare two ropes, but we convert but to flat strings for now.
return ucs2_strcmp (EJSVAL_TO_FLAT_STRING(x), EJSVAL_TO_FLAT_STRING(y)) ? EJS_FALSE : EJS_TRUE;
}
// 8. If Type(x) is Boolean, then
if (EJSVAL_IS_BOOLEAN(x)) {
// a. If x and y are both true or both false, then return true; otherwise, return false.
return EJSVAL_TO_BOOLEAN(x) == EJSVAL_TO_BOOLEAN(y) ? EJS_TRUE : EJS_FALSE;
}
// 9. If Type(x) is Symbol, then
if (EJSVAL_IS_SYMBOL(x)) {
// a. If x and y are both the same Symbol value, then return true; otherwise, return false.
EJS_NOT_IMPLEMENTED();
}
// 10. Return true if x and y are the same Object value. Otherwise, return false.
return EJSVAL_EQ(x, y);
}
EJSBool ToEJSBool(ejsval exp)
{
if (EJSVAL_IS_NULL(exp) || EJSVAL_IS_UNDEFINED(exp))
return EJS_FALSE;
else if (EJSVAL_IS_BOOLEAN(exp))
return EJSVAL_TO_BOOLEAN(exp);
else if (EJSVAL_IS_NUMBER(exp))
return EJSVAL_TO_NUMBER(exp) != 0;
else if (EJSVAL_IS_STRING(exp))
return EJSVAL_TO_STRLEN(exp) != 0;
else if (EJSVAL_IS_OBJECT(exp))
return EJS_TRUE;
else
EJS_NOT_IMPLEMENTED();
}
static ejsval
_ejs_require_impl (ejsval env, ejsval _this, uint32_t argc, ejsval *args)
{
if (argc < 1) {
return _ejs_undefined;
}
ejsval arg = args[0];
if (!EJSVAL_IS_STRING(arg)) {
_ejs_log ("required called with non-string\n");
return _ejs_null;
}
return _ejs_module_get(arg);
}
static ejsval
_ejs_Process_chdir (ejsval env, ejsval _this, uint32_t argc, ejsval* args)
{
ejsval dir = _ejs_undefined;
if (argc > 0)
dir = args[0];
if (!EJSVAL_IS_STRING(dir))
_ejs_throw_nativeerror_utf8 (EJS_TYPE_ERROR, "chdir passed non-string");
char *dir_utf8 = ucs2_to_utf8(EJSVAL_TO_FLAT_STRING(dir));
chdir(dir_utf8);
free(dir_utf8);
return _ejs_undefined;
}
static ejsval
_ejs_path_resolve (ejsval env, ejsval _this, uint32_t argc, ejsval* args)
{
char** paths_utf8 = (char**)calloc(argc + 1, sizeof(char*));
int num_paths = 0;
char cwd[MAXPATHLEN];
getcwd(cwd, MAXPATHLEN);
paths_utf8[num_paths++] = strdup(cwd);
for (int i = 0; i < argc; i ++) {
ejsval arg = args[i];
if (!EJSVAL_IS_STRING(arg)) {
for (int j = 0; j < num_paths; j ++) free(paths_utf8[j]);
free (paths_utf8);
_ejs_throw_nativeerror_utf8 (EJS_TYPE_ERROR, "Arguments to path.resolve must be strings");
}
paths_utf8[num_paths++] = ucs2_to_utf8(EJSVAL_TO_FLAT_STRING(arg));
}
int start_path;
for (start_path = num_paths-1; start_path >= 0; start_path --) {
if (paths_utf8[start_path][0] == '/')
break;
}
// at this point paths_utf8[start_path] is our "root" for
// resolving. it is either the right-most absolute path in the
// argument list, or $cwd if there wasn't an absolute path in the
// args.
char* resolved = resolvev(&paths_utf8[start_path], num_paths - start_path);
ejsval rv = _ejs_string_new_utf8(resolved);
free (resolved);
for (int j = 0; j < num_paths; j ++) free(paths_utf8[j]);
free (paths_utf8);
return rv;
}
// ECMA262 15.3.4.5
static ejsval
_ejs_Function_prototype_bind (ejsval env, ejsval _this, uint32_t argc, ejsval *args)
{
/* 1. Let Target be the this value. */
ejsval Target = _this;
/* 2. If IsCallable(Target) is false, throw a TypeError exception. */
if (!EJSVAL_IS_CALLABLE(Target)) {
_ejs_throw_nativeerror_utf8 (EJS_TYPE_ERROR, "object not a function");
}
ejsval thisArg = _ejs_undefined;
if (argc > 0)
thisArg = args[0];
/* 3. Let A be a new (possibly empty) internal list of all of the argument values provided after thisArg (arg1, arg2 etc), in order. */
int bound_argc = argc > 1 ? argc - 1 : 0;
/* 4. Let F be a new native ECMAScript object . */
ejsval bound_env = EJS_BOUNDFUNC_ENV_NEW(bound_argc);
EJS_BOUNDFUNC_ENV_SET_TARGET(bound_env, Target);
EJS_BOUNDFUNC_ENV_SET_THIS(bound_env, thisArg);
EJS_BOUNDFUNC_ENV_SET_ARGC(bound_env, NUMBER_TO_EJSVAL(bound_argc));
for (int i = 0; i < bound_argc; i ++) {
EJS_BOUNDFUNC_ENV_SET_ARG(bound_env, i, args[i+1]);
}
ejsval target_name = _ejs_object_getprop (Target, _ejs_atom_name);
ejsval bound_name;
if (EJSVAL_IS_STRING(target_name))
bound_name = _ejs_string_concat(_ejs_atom_bound_space, target_name);
else
bound_name = _ejs_atom_bound_space;
ejsval F = _ejs_function_new (bound_env, bound_name, bound_wrapper);
EJSFunction *F_ = (EJSFunction*)EJSVAL_TO_OBJECT(F);
F_->bound = EJS_TRUE;
return F;
}
ejsval ToNumber(ejsval exp)
{
if (EJSVAL_IS_NUMBER(exp))
return exp;
else if (EJSVAL_IS_BOOLEAN(exp))
return EJSVAL_TO_BOOLEAN(exp) ? _ejs_one : _ejs_zero;
else if (EJSVAL_IS_STRING(exp)) {
char* num_utf8 = ucs2_to_utf8(EJSVAL_TO_FLAT_STRING(exp));
char *endptr;
double d = strtod(num_utf8, &endptr);
if (*endptr != '\0')
return _ejs_nan;
ejsval rv = NUMBER_TO_EJSVAL(d); // XXX NaN
free (num_utf8);
return rv;
}
else if (EJSVAL_IS_UNDEFINED(exp))
return _ejs_nan;
else if (EJSVAL_IS_OBJECT(exp)) {
if (EJSVAL_IS_DATE(exp)) {
return NUMBER_TO_EJSVAL(_ejs_date_get_time ((EJSDate*)EJSVAL_TO_OBJECT(exp)));
}
else if (EJSVAL_IS_ARRAY(exp)) {
int len = EJS_ARRAY_LEN(exp);
if (len == 0) return _ejs_zero;
else if (len > 1) return _ejs_nan;
else {
// XXX we need to support sparse arrays here too
EJS_ASSERT (EJSVAL_IS_DENSE_ARRAY(exp));
return ToNumber(EJS_DENSE_ARRAY_ELEMENTS(exp)[0]);
}
}
else
return _ejs_nan;
}
else
EJS_NOT_IMPLEMENTED();
}
ejsval
_ejs_op_mod (ejsval lhs, ejsval rhs)
{
if (EJSVAL_IS_NUMBER(lhs)) {
if (EJSVAL_IS_NUMBER(rhs)) {
return NUMBER_TO_EJSVAL (fmod(EJSVAL_TO_NUMBER(lhs), EJSVAL_TO_NUMBER(rhs)));
}
else {
// need to call valueOf() on the object, or convert the string to a number
EJS_NOT_IMPLEMENTED();
}
}
else if (EJSVAL_IS_STRING(lhs)) {
// string+ with anything we don't implement yet - it will call toString() on objects, and convert a number to a string
EJS_NOT_IMPLEMENTED();
}
else {
// object+... how does js implement this anyway?
EJS_NOT_IMPLEMENTED();
}
return _ejs_nan;
}
ejsval
_ejs_op_typeof (ejsval exp)
{
if (EJSVAL_IS_NULL(exp))
return _ejs_atom_null;
else if (EJSVAL_IS_BOOLEAN(exp))
return _ejs_atom_boolean;
else if (EJSVAL_IS_STRING(exp))
return _ejs_atom_string;
else if (EJSVAL_IS_SYMBOL(exp))
return _ejs_atom_symbol;
else if (EJSVAL_IS_NUMBER(exp))
return _ejs_atom_number;
else if (EJSVAL_IS_UNDEFINED(exp))
return _ejs_atom_undefined;
else if (EJSVAL_IS_OBJECT(exp)) {
if (EJSVAL_IS_FUNCTION(exp))
return _ejs_atom_function;
else
return _ejs_atom_object;
}
else
EJS_NOT_IMPLEMENTED();
}
ejsval ToObject(ejsval exp)
{
if (EJSVAL_IS_BOOLEAN(exp)) {
ejsval new_boolean = _ejs_object_new (_ejs_Boolean_proto, &_ejs_Boolean_specops);
_ejs_invoke_closure (_ejs_Boolean, new_boolean, 1, &exp);
return new_boolean;
}
else if (EJSVAL_IS_NUMBER(exp)) {
ejsval new_number = _ejs_object_new (_ejs_Number_proto, &_ejs_Number_specops);
_ejs_invoke_closure (_ejs_Number, new_number, 1, &exp);
return new_number;
}
else if (EJSVAL_IS_STRING(exp)) {
ejsval new_str = _ejs_object_new (_ejs_String_prototype, &_ejs_String_specops);
_ejs_invoke_closure (_ejs_String, new_str, 1, &exp);
return new_str;
}
else if (EJSVAL_IS_UNDEFINED(exp))
return exp; // XXX
else if (EJSVAL_IS_OBJECT(exp))
return exp;
else
EJS_NOT_IMPLEMENTED();
}
ejsval
_ejs_op_typeof_is_string(ejsval exp)
{
return EJSVAL_IS_STRING(exp) ? _ejs_true : _ejs_false;
}
static ejsval
_ejs_path_relative (ejsval env, ejsval _this, uint32_t argc, ejsval* args)
{
ejsval from = _ejs_undefined;
ejsval to = _ejs_undefined;
if (argc > 0) from = args[0];
if (argc > 1) to = args[1];
if (!EJSVAL_IS_STRING(from) || !EJSVAL_IS_STRING(to))
_ejs_throw_nativeerror_utf8 (EJS_TYPE_ERROR, "Arguments to path.relative must be strings");
char *from_utf8 = ucs2_to_utf8(EJSVAL_TO_FLAT_STRING(from));
char *to_utf8 = ucs2_to_utf8(EJSVAL_TO_FLAT_STRING(to));
if (from_utf8[0] != '/') from_utf8 = make_absolute(from_utf8);
if (to_utf8[0] != '/') to_utf8 = make_absolute(to_utf8);
char* p = to_utf8 + strlen(to_utf8) - 1;
int up = 0;
EJSBool seen_slash = EJS_FALSE;
while (p != to_utf8) {
if (*p == '/') {
if (seen_slash) continue; // skip adjacent slashes
seen_slash = EJS_TRUE;
char* prefix = strndup(to_utf8, p - to_utf8);
if (!strcmp(from_utf8, prefix)) {
up = -1;
free (prefix);
goto done;
}
if (strstr(from_utf8, prefix) == from_utf8) {
free (prefix);
goto done;
}
free (prefix);
up ++;
}
else {
seen_slash = EJS_FALSE;
}
p--;
}
// we made it all the way to the end, fall through to building up our string
done:
{
ejsval dotdotslash = _ejs_string_new_utf8("../");
ejsval rv = _ejs_string_new_utf8(p+1);
while (up >= 0) {
rv = _ejs_string_concat(dotdotslash, rv);
up--;
}
free (from_utf8);
free (to_utf8);
return rv;
}
}
