hetu_script 0.3.7+1

Hetu is a lightweight script language for embedding in Flutter apps.

0.3.7

• Add namespace declaration statement.
• Now can directly import a JSON file into code. It will become a HTStruct object.

0.3.6

• Due to web support compatibility reasons, changed internal integer bytecode from 64bit to 32bit.
• Added BigInt builtin binding.

0.3.5

• Added const declaration for boolean, int, float and string.
• Fixed comment parsing problems. Now comment could be written almost anywhere without affect parser.

0.3.4

• Added for...of syntax for iterate through values of Map or struct literal.
• When statement now can also be used as expression.
• If null syntax: '?.', '??', '??='.

0.3.3

• Added spread syntax on function call argument, list and struct literal
• Added short identifier for struct literal

0.3.2

• Added [isStrictMode] for interpreter, in non strict mode, if/while/do and and/or expression can have a non boolean value for condition check.
• Added Future.then external method for script to handle with Dart Futures.

0.3.1

• Changed the external function typedef in Dart, added namespace as first arg when called.

0.3.0

• Command line tool and file system context support moved to another package: [hetu_script_dev_tools].
• Added a new kind of external binding: external method on normal classes
• Added support for literal function expression with no keyword.
• Added struct literal and prototype based object system. The map literal is replaced with struct literal.

0.2.0

• Analyzer can check for syntactic errors now.
• Added IDE support for analyzer and formatter.
• Compile source into bytecode and load it at another time to skip parsing and compile process.

0.1.3

• Named constructor can refer to default constructor: 'construct name(): this()'.
• Feature: Single expression 'function: fun add(a, b) => a + b'.
• Feature: Type alias: 'type MyFuncType = fun (num, num) -> num'.

0.1.2

• Added Analyzer and Formatter utility classes (WIP).
• Added Type expression and related assignment operations.
• Feature: Added default implementation of 'toJson' on instances.

0.1.1

• Feature: Sequenced constructor calling through super classes.
• Feature: 'super' keyword with instance method, for calling super class method.
• Feature: 'as' & 'is' operator, with super class checking & casting.
• Feature: Full funtion type check with parameters and return type.

0.1.0

• Refactor: Changed default interpreter into bytecode machine.
• Feature: String interpolation.
• Feature: Now fully support nested function and literal function.
• Feature: Added ++, -- post and pre operators, and +=, -=, *=, /= operators.
• Feature: Full support on While, Do loops, classic for(init;condition;increment), for...in, when statement (works like switch).
• Feature: Ternary operator: 'conditon ? true : false'.
• Feature: Interpreter function for bind Dart Function Typedef.

0.0.5

• Refactor: Migrate to null safety.
• Feature: Literal function expression (anonymous function).
• Feature: Named function parameters.
• Feature: Support literal hexadecimal numbers.

0.0.1

• Initial version, hello world!