* Fix big endian serialization
Big endian serialization was broken because:
- it partially relied on `WORDS_ENDIAN` (unconditionally undef'd in cutils.h)
- endianness was not handled at all in the bc reader.
- `bc_tag_str` was missing the `"RegExp"` string
- `lre_byte_swap()` was broken for `REOP_range` and `REOP_range32`
Modifications:
- remove `WORDS_ENDIAN`
- use `bc_put_u32()` / `bc_put_u64()` in `JS_WriteBigInt()`
- use `bc_get_u32()` / `bc_get_u64()` in `JS_ReadBigInt()`
- handle host endianness in `bc_get_u16()`, `bc_get_u32()`, `bc_get_u64()` and
`JS_ReadFunctionBytecode()`
- handle optional littleEndian argument as specified in
`js_dataview_getValue()` and `js_dataview_setValue()`
- fix `bc_tag_str` and `lre_byte_swap()`
- fix the conversions for integers and exact fractions
- approximate approach for other cases.
- bypass floating point conversions for JS_TAG_INT values
- avoid divisions for base 10 integer conversions
Fixes: https://github.com/quickjs-ng/quickjs/issues/242
I have a use case where a user can hand me many different kinds of
types, array buffer, uint8array, or a string, and I need to be able to
distingush between them.
Signed-off-by: Tyler Rockwood <rockwood@redpanda.com>
* Add method to GetClassID
If you want to extend a built-in class you need it's class ID and there
is no robust way to get that without this accessor.
Signed-off-by: Tyler Rockwood <rockwood@redpanda.com>
* introduce constant for invalid class ID
Signed-off-by: Tyler Rockwood <rockwood@redpanda.com>
---------
Signed-off-by: Tyler Rockwood <rockwood@redpanda.com>
`ToString(object)` can fail when there is a pending exception. Add a
special case for exception objects to help debugging. Getting an empty
string when the real error was "InternalError: stack overflow" is rage
inducing.
Fixes: https://github.com/quickjs-ng/quickjs/issues/273
This commit merges JS_SetPropertyGeneric into JS_SetPropertyInternal2
and obsoletes commit b51b510 and partially obsoletes commit 8baafc4;
detachment and negative zero handling now fall out naturally.
`ta["-0"] = 42` is a thing and not just any thing but a decidedly weird
thing: it completes successful, sets no property, but still evaluates
the value for side effects.
`a[42] = 1` where a is a detached typed array should not throw but
`Object.defineProperty()` still should. Add a check and a flag that
distinguishes between the two cases.
And:
- display them in stack traces
- expose them as Function.prototype.columnNumber
OP_line_num is renamed to OP_source_loc and the pc2line data structure
is extended with the column number in zigzag encoding.
The bytecode version number BC_VERSION is incremented because pc2line
data is read and written by JS_ReadObject() and JS_WriteObject() when
it is present.
Fixes: https://github.com/quickjs-ng/quickjs/issues/149
Per spec: detaching the TA mid-iteration is allowed and should not
not throw an exception.
In the case of TypedArray.prototype.set, because iteration over the
source array is observable, we cannot bail out early when the TA is
first detached.
