`JERRY_UNREACHABLE`s often signal code structure that could be
improved: they can usually either be rewritten to `JERRY_ASSERT`s
or eliminated by restructuring loops, `if`s or `#if`s. Roughly,
the only valid occurences are in default cases of `switch`es. And
even they can often be merged into non-default cases.
Moreover, it is dangerous to write meaningful code after
`JERRY_UNREACHABLE` because it pretends as if there was a way to
recover from an impossible situation.
This patch rewrites/eliminates `JERRY_UNREACHABLE`s where possible
and removes misleading code from after them.
JerryScript-DCO-1.0-Signed-off-by: Akos Kiss [email protected]
Binary operations are much faster with literal arguments.
The byte immediates are still kept for other cases, e.g. array declarations.
JerryScript-DCO-1.0-Signed-off-by: Zoltan Herczeg [email protected]
In general, public headers should not have compiler-specific
constructs but both the core and the port headers have attributes,
which are non-standard. It's better to factor out such constructs
to a common place (a new header) and hide them behind macros, which
can then be defined on a per-compiler basis.
This patch moves the existing definitions of function attributes and
likely/unlikely builtins to the new header. At the same time, it
unifies the names of these attribute defines and where they are
used. Moreover, it touches on jerry-main and removes the uses of
`__attribute__((unused))` entirely and replaces them with the
elsewhere used `(void) ...` pattern.
JerryScript-DCO-1.0-Signed-off-by: Akos Kiss [email protected]
Add line info data to byte, which allows getting a backtrace info directly
from the engine. Snapshots are not supported.
JerryScript-DCO-1.0-Signed-off-by: Zoltan Herczeg [email protected]
In some cases the debugger catches (reports) the same
exception multiple times. This is confusing since these
not new errors. This patch fixes this behaviour.
JerryScript-DCO-1.0-Signed-off-by: Zoltan Herczeg [email protected]
Aborts are not caught by catch/finally blocks,
so it is possible to stop a script using the debugger.
JerryScript-DCO-1.0-Signed-off-by: Zoltan Herczeg [email protected]
This patch makes it possible to throw an error from the python debugger client using the `throw` command.
JerryScript-DCO-1.0-Signed-off-by: Daniel Balla [email protected]
By removing the ECMA_TRY_CATCH macros at these
places ~200 bytes of .text is saved on rpi2.
JerryScript-DCO-1.0-Signed-off-by: Peter Gal [email protected]
Unlike normal snapshots, no part of a static snapshot is loaded into
the RAM when executed from ROM. Static snapshots rely heavily on
external magic strings.
JerryScript-DCO-1.0-Signed-off-by: Zoltan Herczeg [email protected]
Direct strings are a new type of direct ecma-values (no memory allocation
is needed for encoding them) in JerryScript. Currently magic strings,
external magic strings and uint values are encoded as direct strings.
The constant pool of JerryScript byte-code is changed to hold ecma-values
rather than cpointers to support direct strings.
JerryScript-DCO-1.0-Signed-off-by: Zoltan Herczeg [email protected]
Aborts are similar to exceptions except they are not caught by catch
and finally blocks. Callbacks should honor aborts as well and return
them without processing them. Aborts are never thrown by JavaScript
code.
In the future certain events such as out-of-memory condition may
also throw aborts.
JerryScript-DCO-1.0-Signed-off-by: Zoltan Herczeg [email protected]
This patch adds two new string concatenation functions:
ecma_append_chars_to_string and ecma_append_magic_string_to_string
The former appends a cesu8 byte array and the latter appends a magic string
to the end of an ecma-string. These two free (dereference) their ecma-string
argument, and this change is also applied to the original ecma_concat_ecma_strings
function which simplifies string handling in most cases.
JerryScript-DCO-1.0-Signed-off-by: Zoltan Herczeg [email protected]
This patch improves the ecma_integers_values multiplication by checking if the multiplier or multiplicand is power of 2.
If it is it uses right shift instead of multiplication.
JerryScript-DCO-1.0-Signed-off-by: Robert Fancsik [email protected]
The affected function calls have been replaced with the appropriate arithmetic operands.
JerryScript-DCO-1.0-Signed-off-by: Robert Fancsik [email protected]
This patch removes all ecma_make_simple_value calls to make the code more easy to understand.
Also removes the type ecma_simple_value_t which improves the performance in related code paths by calculating the value of new ecma_value_t is no longer needed.
JerryScript-DCO-1.0-Signed-off-by: Robert Fancsik [email protected]
Freezing the global object and later trying to add properties to it caused an assertion error (issue #2105).
This patch fixes the issue.
JerryScript-DCO-1.0-Signed-off-by: Daniel Balla [email protected]
This change frees up the error bit in ecma_value_t, which allows
to define 4 more value types (e.g. symbols). To keep API
compatibility we introduce a box for values with error flag.
JerryScript-DCO-1.0-Signed-off-by: Zoltan Herczeg [email protected]
Several properties of strict and bound functions are moved to
lazy property instantiation. The memory consumption of bound
functions are also reduced when only a this is present.
JerryScript-DCO-1.0-Signed-off-by: Zoltan Herczeg [email protected]
With this feature the debugger webIDE and the python client can able to send a source code to the debugger while that is running in wait mode.
This feature can be activated with the --debugger-wait-source switch and the debugger will wait for the source messages.
If every message part are received the debugger will continue the exectuion with the initalized options.
JerryScript-DCO-1.0-Signed-off-by: Imre Kiss [email protected]
Currently we keep all local variables in the scope chain as long as
a nested function is alive. These variables consume memory although
several of them are never used. This patch focuses on removing those
unused ones whose can be detected at parsing time.
JerryScript-DCO-1.0-Signed-off-by: Zoltan Herczeg [email protected]
The config header was full of legacy, no-longer-in-use defines. It
was also included from multiple files where it was not necessary.
This patch removes the unused defines, and cleans up headers so
that only `ecma-globals.h` includes `config.h`.
JerryScript-DCO-1.0-Signed-off-by: Akos Kiss [email protected]
If the debugger evaluate a variable out of the scope in eval mode, its get an error.
JerryScript-DCO-1.0-Signed-off-by: Levente Orban [email protected]
This makes the code more robust and error prone, since certain
messages cannot be received in certain situations, e.g. an eval
command during garbage collection.
JerryScript-DCO-1.0-Signed-off-by: Zoltan Herczeg [email protected]
Zoltan Herczeg