* Removed jerry_string_t and jerry_object_t
* Updated function names
* Updated return values
* Updated function descriptions
* Added new functions
* Added new unittests
JerryScript-DCO-1.0-Signed-off-by: László Langó [email protected]
Allocate a single memory block for strings, rather than a separate string header
and string characters block. In the past strings were split into 8 byte chunks,
and large amount of legacy code is designed for that representation. However the
current allocator allows block allocation so we don't need those complicated
algorithms anymore. This patch is a cleanup rather than an optimization.
JerryScript-DCO-1.0-Signed-off-by: Zoltan Herczeg [email protected]
Short summary of the changes:
- The ecma_reference_t is removed, and its helper functions are deleted.
- The delete operation does not depend on ecma_reference_t anymore.
- A new resolve function is added which returns the current value
of a named binding in the context chain.
- The vm_op_set_value does not perform type conversions when its arguments
has the appropriate types.
JerryScript-DCO-1.0-Signed-off-by: Zoltan Herczeg [email protected]
Signed left shift operations are undefined in C. Add constants for the minimum/maximum integer value which are already shifted. Technically, the constant for the shifted maximum value is not required, adding it for consistency/increased readability.
The bug was detected by -Wshift-negative-value both with GCC 6.x and Clang.
This fixes#1174.
JerryScript-DCO-1.0-Signed-off-by: Tilmann Scheller [email protected]
The new literal storage keeps ecma strings rather than having a
custom string implementation which duplicates the string management
routines. Conversions between string implementations are eliminated
which improved the performance by 4%.
JerryScript-DCO-1.0-Signed-off-by: Zoltan Herczeg [email protected]
Several internal properties are removed and directly stored as
part of the object. Faster built-in and JS function processing.
JerryScript-DCO-1.0-Signed-off-by: Zoltan Herczeg [email protected]
There is no need for putting `LIT_CHAR_*` constants in const
scalars or arrays, they can be used directly. (There is especially
no need for arrays of 10 elements if only 2 of them are used.)
JerryScript-DCO-1.0-Signed-off-by: Akos Kiss [email protected]
* Make constants static in `ecma_number_to_utf8_string`.
* Make `ecma_number_to_utf8_string` use early returns, and rewrite
its self-recursion in case of negative numbers.
* Make the stringification of decimal exponent in
`ecma_number_to_utf8_string` use `ecma_uint32_to_utf8_string`.
* Changed ERROL0 dtoa implementation to use the `double` type
instead of `ecma_number_t`. Thus, even is `ecma_number_t` is 32
bit wide, the algorithm works the same.
* Changed `ecma_number_to_decimal` to use the ERROL0 dtoa algorithm
for 32-bit floats as well.
* Changed `ecma_number_to_decimal` to generate the decimal string
representation of the mantissa instead of an `uint64_t` number.
* Changed `ecma_number_to_utf8_string` to make use of the already
available string representation of the mantissa, generated now by
`ecma_number_to_decimal`.
* Changed `ecma_number_to_utf8_string` not to use static arrays and
variables for digit, "e", etc. generation.
* Changed all `Number.prototype.toXXX` implementations and the
`ecma_builtin_number_prototype_helper_round` helper to make use
of the already available string representation of the mantissa,
generated now by `ecma_number_to_decimal`.
* Factored out the common stringification parts of all
`Number.prototype.toXXX` implementations into a new helper
`ecma_builtin_number_prototype_helper_to_string`.
JerryScript-DCO-1.0-Signed-off-by: Akos Kiss [email protected]
Changed 'ecma_copy_or_ref_ecma_string' to 'ecma_ref_ecma_string'. It does
not copy the string if the maximum number of reference counter is reached,
but bails out with an error like the 'ecma_ref_object' function does.
JerryScript-DCO-1.0-Signed-off-by: László Langó [email protected]
When `val` is DBL_MAX, we get +inf from `ECMA_NEXT_FLOAT (val)`.
It is necessary to handle this case specially.
Related issue: #1054
JerryScript-DCO-1.0-Signed-off-by: Hanjoung Lee [email protected]
Correct behaviour of step 8, 15.9.3.1, ECMA-262 v5.1.
- Change ToInt32(y) to ToInteger(y).
- If ToInteger(y) is not between 0 and 99 then yr = y
Related issue: #1071
JerryScript-DCO-1.0-Signed-off-by: Hanjoung Lee [email protected]
JerryScript-DCO-1.0-Signed-off-by: Hanjoung Lee [email protected]
Parts:
* Rename ecma_string_to_utf8_string() to ecma_string_copy_to_utf8_buffer.
* Introduce ecma_string_to_utf8_bytes(), which wraps the usual 'function call-assertion' pair,
and check strict equality of size of the string and the buffer.
JerryScript-DCO-1.0-Signed-off-by: Zsolt Borbély [email protected]
* Rename 'jerry_api_' prefix to 'jerry_'
* Fix minor style issues
* Group the API functions and add comment to each group
* Move engine behaviour related funtions to 'jerry.h'
JerryScript-DCO-1.0-Signed-off-by: László Langó [email protected]
The implementation is simplified and optimized
resulting the removal a large amount of code.
JerryScript-DCO-1.0-Signed-off-by: Zoltan Herczeg [email protected]
The cache stores only real properties now, because storing NULLs has
little benefit according to tests. Since only real properties are
stored now, there is no need to create real references to objects
and property names, which reduces the keeping of dead objects after
garbage collection.
JerryScript-DCO-1.0-Signed-off-by: Zoltan Herczeg [email protected]
The ecma_op_to_boolean return value is changed to bool for faster
evaluation, and no need to swap operandos of relational compare.
JerryScript-DCO-1.0-Signed-off-by: Zoltan Herczeg [email protected]
the three boolean arguments of ecma_create_named_data_property and the
two boolean arguments of ecma_create_named_accessor_property are combined
into one uint8_t argument. On ARM-32 it is preferred to have less than
four arguments, since these arguments can be passed in registers.
JerryScript-DCO-1.0-Signed-off-by: Zoltan Herczeg [email protected]
function is removed and incorporated into ecma_op_general_object_put. Also most
properties are directly created / updated instead of using ecma_builtin_helper_def_prop.
JerryScript-DCO-1.0-Signed-off-by: Zoltan Herczeg [email protected]
counter is one, dereferencing the value frees its allocated memory.
In this case we return early.
JerryScript-DCO-1.0-Signed-off-by: Zoltan Herczeg [email protected]
The 'mem_' prefix is too general, so it might clash with
symbols in other libraries. Renamed the directory, file,
funtion and type names.
Related issue: #1052
JerryScript-DCO-1.0-Signed-off-by: László Langó [email protected]
String, Boolean) to use ecma-values. When the value of a Number object is
a small integer number, this change reduces the memory consumption, since no
double is allocated.
JerryScript-DCO-1.0-Signed-off-by: Zoltan Herczeg [email protected]
This modificiation affects those conditions which check that
a value can be represented with a smaller type.
JerryScript-DCO-1.0-Signed-off-by: Robert Sipka [email protected]
Separate the utf-8 and ascii strings.
In case of ascii strings the size is equal to the length, so we able to store this information
in the string descriptor instead of using the string header to store it.
JerryScript-DCO-1.0-Signed-off-by: Robert Sipka [email protected]
László Langó