Update the webpage (#4540)

JerryScript-DCO-1.0-Signed-off-by: Zsolt Borbély zsborbely.u-szeged@partner.samsung.com

01.CONFIGURATION.md

@@ -15,16 +15,19 @@ A configuration option's value can be changed either by providing specific C pre
 This document lists the available configuration options, shows the configuration name for C, CMake, and python, and provides a brief description that explains the effect of the options.
 
 
-### All-in-one build
+### Amalgamated build
 
-Enables the All-in-one build process, which aggregates the contents of each source file, and uses this combined file to compile the JerryScript library.
-This process can provide comparable results to link time optimization, and can be useful when LTO is not available otherwise.
+Enables the amalgamated build process, which aggregates the contents of each source file per library
+(i.e., JerryScript's core, port, and math libraries), and uses these combined files to compile the project.
+This process can provide comparable results to link-time optimization, and can be useful when LTO is not available otherwise.
 
 | Options |                                              |
 |---------|----------------------------------------------|
 | C:      | `<none>`                                     |
-| CMake:  | `-DENABLE_ALL_IN_ONE=ON/OFF`                 |
-| Python: | `--all-in-one=ON/OFF`                        |
+| CMake:  | `-DENABLE_AMALGAM=ON/OFF`                    |
+| Python: | `--amalgam=ON/OFF`                           |
+
+See also: [Amalgamated sources](#amalgamated-sources)
 
 ### Jerry debugger
 
@@ -288,25 +291,27 @@ This option is disabled by default.
 | Python: | `--mem-stress-test=ON/OFF`                   |
 
 
-# Single source build mode
+# Amalgamated sources
 
-There is a special mode to use/"build" JerryScript. That is generating a single C file which can be
-included into projects quickly. To achive this the following command can be executed to create
-a set of files into the `gen_src` directory (Note that the command is executed in the jerryscript root directory
-but can be adapted to run outside of the project root dir):
+The sources of JerryScript can be combined into a handful of files to allow their easy integration
+in other projects. To achieve this, the following command can be executed to create a set of files
+into the `amalgam` directory:
 
 ```sh
-$ python tools/srcgenerator.py --output-dir gen_src --jerry-core --jerry-port-default --jerry-libm
+$ python tools/amalgam.py --output-dir amalgam --jerry-core --jerry-port-default --jerry-math
 ```
 
-The command creates the following files in the `gen_src` dir:
+(Note: In the example above, the command is executed from the project's root directory, but that is
+not mandatory.)
+
+The command creates the following files in the `amalgam` dir:
 
 * `jerryscript.c`
 * `jerryscript.h`
 * `jerryscript-config.h`
 * `jerryscript-port-default.c`
 * `jerryscript-port-default.h`
-* `jerryscript-libm.c`
+* `jerryscript-math.c`
 * `math.h`
 
 **Important**: the `jerryscript-config.h` contains the configurations mentioned above and
@@ -314,15 +319,15 @@ should be adapted to the required use-case. See the file contents for more detai
 default configuration. (Note: This config file is created from the the `jerry-core/config.h` file.)
 
 These files can be directly compiled with an application using the JerryScript API.
-For example with the following command:
+E.g., using a command similar to the one below:
 
 ```sh
-$ gcc -Wall -o demo_app demo_app.c gen_src/jerryscript.c gen_src/jerryscript-port-default.c jerryscript-libm.c -Igen_src/
+$ gcc -Wall -o demo_app demo_app.c amalgam/jerryscript.c amalgam/jerryscript-port-default.c amalgam/jerryscript-math.c -Iamalgam/
 ```
 
-Please note that the headers must be available on the include path.
+(Note: The headers must be available on the include path.)
 
-In addition there is a `-DENABLE_ALL_IN_ONE_SOURCE=ON` CMake option to use this kind of sources during the build.
+This approach is also under the hood of the [amalgamated build](#amalgamated-build) process.
 
 # Target specific information
 

03.API-EXAMPLE.md

@@ -42,7 +42,7 @@ $ export PKG_CONFIG_PATH=$(pwd)/example_install/lib/pkgconfig/
 Test if the `pkg-config` works for JerryScript:
 
 ```sh
-$ pkg-config --cflags --libs libjerry-core libjerry-port-default libjerry-ext libjerry-libm
+$ pkg-config --cflags --libs libjerry-core libjerry-port-default libjerry-ext libjerry-math
 ```
 
 ## Example 1. Execute JavaScript from your application
@@ -68,7 +68,7 @@ main (void)
 To compile it one can use the following command:
 
 ```sh
-$ gcc api-example-1.c -o api-example-1 $(pkg-config --cflags --libs libjerry-core libjerry-port-default libjerry-libm)
+$ gcc api-example-1.c -o api-example-1 $(pkg-config --cflags --libs libjerry-core libjerry-port-default libjerry-math)
 ```
 
 If everything is correct the application returns with a zero exit code:
@@ -128,7 +128,7 @@ main (void)
 To compile it one can use the following command:
 
 ```sh
-$ gcc api-example-2.c -o api-example-2 $(pkg-config --cflags --libs libjerry-core libjerry-port-default libjerry-libm)
+$ gcc api-example-2.c -o api-example-2 $(pkg-config --cflags --libs libjerry-core libjerry-port-default libjerry-math)
 ```
 
 If everything is correct the application returns with a zero exit code:
@@ -191,7 +191,7 @@ main (void)
 To compile it one can use the following command:
 
 ```sh
-$ gcc api-example-3.c -o api-example-3 $(pkg-config --cflags --libs libjerry-core libjerry-port-default libjerry-libm)
+$ gcc api-example-3.c -o api-example-3 $(pkg-config --cflags --libs libjerry-core libjerry-port-default libjerry-math)
 ```
 
 If everything is correct the application returns with a zero exit code:
@@ -295,7 +295,7 @@ main (void)
 To compile it one can use the following command:
 
 ```sh
-$ gcc api-example-4.c -o api-example-4 $(pkg-config --cflags --libs libjerry-core libjerry-port-default libjerry-libm)
+$ gcc api-example-4.c -o api-example-4 $(pkg-config --cflags --libs libjerry-core libjerry-port-default libjerry-math)
 ```
 
 If everything is correct the application should print out the message present in the `print_handler` method:
@@ -415,7 +415,7 @@ main (void)
 To compile it one can use the following command:
 
 ```sh
-$ gcc api-example-5.c -o api-example-5 $(pkg-config --cflags --libs libjerry-core libjerry-port-default libjerry-libm)
+$ gcc api-example-5.c -o api-example-5 $(pkg-config --cflags --libs libjerry-core libjerry-port-default libjerry-math)
 ```
 
 If everything is correct the application should print out the string passed for the `print` method in the JS code:
@@ -483,7 +483,7 @@ To compile it one can use the following command:
 (**Note** that the `libjerry-ext` was added **before** the `libjerry-port-default` entry for the `pkg-config` call.
 
 ```sh
-$ gcc api-example-6.c -o api-example-6 $(pkg-config --cflags --libs libjerry-core libjerry-ext libjerry-port-default libjerry-libm)
+$ gcc api-example-6.c -o api-example-6 $(pkg-config --cflags --libs libjerry-core libjerry-ext libjerry-port-default libjerry-math)
 ```
 
 If everything is correct the application should print out the string passed for the `print` method in the JS code:
@@ -559,7 +559,7 @@ To compile it one can use the following command:
 (**Note** that the `libjerry-ext` was added **before** the `libjerry-port-default` entry for the `pkg-config` call.
 
 ```sh
-$ gcc api-example-7.c -o api-example-7 $(pkg-config --cflags --libs libjerry-core libjerry-ext libjerry-port-default libjerry-libm)
+$ gcc api-example-7.c -o api-example-7 $(pkg-config --cflags --libs libjerry-core libjerry-ext libjerry-port-default libjerry-math)
 ```
 
 The sample will output 'Hello from C!'. However, now it is not just a part of the source script, but the value, dynamically supplied to the engine:
@@ -832,7 +832,7 @@ To compile it one can use the following command:
 (**Note** that the `libjerry-ext` was added **before** the `libjerry-port-default` entry for the `pkg-config` call.
 
 ```sh
-$ gcc api-example-8-shell.c -o api-example-8-shell $(pkg-config --cflags --libs libjerry-core libjerry-ext libjerry-port-default libjerry-libm)
+$ gcc api-example-8-shell.c -o api-example-8-shell $(pkg-config --cflags --libs libjerry-core libjerry-ext libjerry-port-default libjerry-math)
 ```
 
 The application reads lines from standard input and evaluates them, one after another. To try out run:
@@ -932,7 +932,7 @@ To compile it one can use the following command:
 (**Note** that the `libjerry-ext` was added **before** the `libjerry-port-default` entry for the `pkg-config` call.
 
 ```sh
-$ gcc api-example-9.c -o api-example-9 $(pkg-config --cflags --libs libjerry-core libjerry-ext libjerry-port-default libjerry-libm)
+$ gcc api-example-9.c -o api-example-9 $(pkg-config --cflags --libs libjerry-core libjerry-ext libjerry-port-default libjerry-math)
 ```
 
 Execute the example with:
@@ -1063,7 +1063,7 @@ To compile it one can use the following command:
 (**Note** that the `libjerry-ext` was added **before** the `libjerry-port-default` entry for the `pkg-config` call.
 
 ```sh
-$ gcc api-example-10.c -o api-example-10 $(pkg-config --cflags --libs libjerry-core libjerry-ext libjerry-port-default libjerry-libm)
+$ gcc api-example-10.c -o api-example-10 $(pkg-config --cflags --libs libjerry-core libjerry-ext libjerry-port-default libjerry-math)
 ```
 
 Execute the example with:

04.INTERNALS.md

@@ -290,7 +290,8 @@ The objects are represented as following structure:
 ![Object properties]({{ site.github.url }}/img/ecma_object_property.png){: class="thumbnail center-block img-responsive" }
 
 Objects have a linked list that contains their properties. This list actually contains property pairs, in order to save memory described in the followings:
-A property is 7 bit long and its type field is 2 bit long which consumes 9 bit which does not fit into 1 byte but consumes 2 bytes. Hence, placing together two properties (14 bit) with the 2 bit long type field fits into 2 bytes.
+A property has a one byte long descriptor, a two byte long name and four byte long value. Hence 14 bytes consumed by a property pair. Another two bytes is
+used to show the next property pair, so the total size (16 byte) is divisible by 8.
 
 #### Property Hashmap
 

05.PORT-API.md

@@ -161,6 +161,32 @@ jerry_port_get_native_module (jerry_value_t name) /**< module specifier */
 }
 ```
 
+## Promise
+
+```c
+/**
+ * HostPromiseRejectionTracker operations
+ */
+typedef enum
+{
+  JERRY_PROMISE_REJECTION_OPERATION_REJECT, /**< promise is rejected without any handlers */
+  JERRY_PROMISE_REJECTION_OPERATION_HANDLE, /**< handler is added to a rejected promise for the first time */
+} jerry_promise_rejection_operation_t;
+
+/**
+ * Track unhandled promise rejections.
+ *
+ * Note:
+ *      This port function is called by jerry-core when JERRY_BUILTIN_PROMISE
+ *      is enabled.
+ *
+ * @param promise rejected promise
+ * @param operation HostPromiseRejectionTracker operation
+ */
+void jerry_port_track_promise_rejection (const jerry_value_t promise,
+                                         const jerry_promise_rejection_operation_t operation);
+```
+
 ## Date
 
 ```c
@@ -402,3 +428,32 @@ void jerry_port_sleep (uint32_t sleep_time)
 } /* jerry_port_sleep */
 #endif /* defined (JERRY_DEBUGGER) && (JERRY_DEBUGGER == 1) */
 ```
+
+## Promise
+
+```c
+#include "jerryscript-port.h"
+
+/**
+ * Default implementation of jerry_port_track_promise_rejection.
+ * Prints the reason of the unhandled rejections.
+ */
+void
+jerry_port_track_promise_rejection (const jerry_value_t promise, /**< rejected promise */
+                                    const jerry_promise_rejection_operation_t operation) /**< operation */
+{
+  (void) operation; /* unused */
+
+  jerry_value_t reason = jerry_get_promise_result (promise);
+  jerry_value_t reason_to_string = jerry_value_to_string (reason);
+  jerry_size_t req_sz = jerry_get_utf8_string_size (reason_to_string);
+  jerry_char_t str_buf_p[req_sz + 1];
+  jerry_string_to_utf8_char_buffer (reason_to_string, str_buf_p, req_sz);
+  str_buf_p[req_sz] = '\0';
+
+  jerry_release_value (reason_to_string);
+  jerry_release_value (reason);
+
+  printf ("Uncaught (in promise) %s\n", str_buf_p);
+} /* jerry_port_track_promise_rejection */
+```