jerryscript/jerry-core/profiles

About profile files

Specify compile definitions in profile files to use when compiling the jerry-core target.

The default profile is es5.1 which disables the ES2015 features.

Using profiles with the build system

You can specify the profile for the build system in the following ways:

• with absolute path
• with a name (this options selects profiles/$(name).profile file)

Restrictions

Only single line options are allowed in the profile file. Any line starting with hash-mark is ignored. Semicolon character is not allowed.

Example usage

1. Using the build script

If you want to use a predefined profile, run the build script as follows (assuming that you are in the project root folder):

./tools/build.py --profile=minimal

Alternatively, if you want to use a custom profile at /absolute/path/to/my.profile:

# Turn off every ES2015 feature EXCEPT the module system
JERRY_ES2015_BUILTIN_DATAVIEW=0
JERRY_ES2015_BUILTIN_MAP=0
JERRY_ES2015_BUILTIN_PROMISE=0
JERRY_ES2015_BUILTIN_SET=0
JERRY_ES2015_BUILTIN_TYPEDARRAY=0

Run the build script as follows (assuming that you are in the project root folder):

./tools/build.py --profile=/absolute/path/to/my.profile

2. Using only CMake build system

Set FEATURE_PROFILE option to one of the following values:

• the profile with absolute path
• name of the profile (which needs to exist in the profiles folder)

Configurations

In JerryScript all of the features are enabled by default, so an empty profile file turns on all of the available ECMA features. The defines can have a value of 0 or 1. If for whatever reason one of them are not defined, it is treated as if it were defined to 1.

ES 5.1 features

• JERRY_BUILTIN_ANNEXB: Enables or disables the Annex B of the ECMA5.1 standard.
• JERRY_BUILTIN_ARRAY: Enables or disable the Array built-in.
• JERRY_BUILTIN_BOOLEAN: Enables or disables the Boolean built-in.
• JERRY_BUILTIN_DATE: Enables or disables the Date built-in.
• JERRY_BUILTIN_ERRORS: Enables or disables the Native Error Types (EvalError, RangeError, ReferenceError, SyntaxError, TypeError, URIError). Note: The Error object remains available.
• JERRY_BUILTIN_JSON: Enables or disables the JSON built-in.
• JERRY_BUILTIN_MATH: Enables or disables the Math built-in.
• JERRY_BUILTIN_NUMBER: Enables or disables the Number built-in.
• JERRY_BUILTIN_REGEXP: Enables or disables the RegExp built-in.
• JERRY_BUILTIN_STRING: Enables or disables the String built-in.
• JERRY_BUILTINS: Enables or disable all of the Standard Built-in ECMAScript 5.1 Objects This option is evaulated first, any other JERRY_BUILTIN_<name> defines will override that specific builtin config. Equivalent with setting the following defines to the JERRY_BUILTINS value:
  • JERRY_BUILTIN_ANNEXB
  • JERRY_BUILTIN_ARRAY
  • JERRY_BUILTIN_BOOLEAN
  • JERRY_BUILTIN_DATE
  • JERRY_BUILTIN_ERRORS
  • JERRY_BUILTIN_JSON
  • JERRY_BUILTIN_MATH
  • JERRY_BUILTIN_NUMBER
  • JERRY_BUILTIN_REGEXP
  • JERRY_BUILTIN_STRING

ES6 (ES 2015) features

• JERRY_ES2015_BUILTIN_DATAVIEW: Enables or disables the DataView built-in.
• JERRY_ES2015_BUILTIN_MAP: Enables or disables the Map built-ins.
• JERRY_ES2015_BUILTIN_SET: Enables or disables the SET built-in.
• JERRY_ES2015_BUILTIN_PROMISE: Enables or disables the Promise built-in.
• JERRY_ES2015_BUILTIN_TYPEDARRAY: Enables or disables the ArrayBuffer and TypedArray built-ins.
• JERRY_ES2015_MODULE_SYSTEM: Enables or disable the module system language element.
• JERRY_ES2015: Enables or disable all of the implemented ECMAScript2015 features.
  • arrow functions language element.
  • class language element.
  • default value for formal parameters.
  • destructuring assignment language element.
  • destructuring binding pattern declarations.
  • enhanced object initializer language element.
  • for-of language element.
  • generator functions language element.
  • iterator built-in.
  • rest parameter language element.
  • symbol language element.
  • template strings language element. Furthermore all builtins follow the ES2015 specification including those which behave differently in ES5.1. This option is evaulated first, any other JERRY_ES2015_<name> defines will override that specific entry. Equivalent with setting the following defines to the JERRY_ES2015 value:
    • JERRY_ES2015_BUILTIN_DATAVIEW
    • JERRY_ES2015_BUILTIN_MAP
    • JERRY_ES2015_BUILTIN_SET
    • JERRY_ES2015_BUILTIN_PROMISE
    • JERRY_ES2015_BUILTIN_TYPEDARRAY
    • JERRY_ES2015_MODULE_SYSTEM