In addition to the features mentioned in Milestone v0.4.0, this release contains the following changes:

Non-Breaking Changes

External

• better error-reporting (multiple errors, better messages, etc.)

Internal

Project Stuff

• upgrade to npm 7
• upgrade to ES Modules
• development tasks no longer depend on gulp
• dev toggles no longer version-based

Specifics

• ASTNode constructors no longer take arrays for enumerated properties
• remove unused build methods from some ASTNode classes

In addition to the features mentioned in Milestone v0.3.0, this release contains the following changes:

Non-Breaking Changes

External

• add GitHub Issue templates

Internal

• refactor source files

Introducing the Solid Programming Language

(name to be finalized)

Version 0.1.0 is the first pre-release version! Expect each v0.X.0 version to incrementally introduce new features, until v1.0.0, a complete programming language.

• a simple calculator
• integer operands represented in 16-bit two’s complement
• arithmetic operators
  • addition +
  • subtraction -
  • multiplication *
  • division /
  • exponentiation ^
  • grouping ( )
• infix notation syntax, e.g. 2 * (3 + 4), not (* 2 (+ 3 4)) or *(2, +(3, 4))
• compiled output is WASM format
• compiled and run via a small command-line interface

In addition to the features mentioned in Milestone v0.2.0, this release contains the following changes:

Non-Breaking Changes

External

• Add compiler feature toggles to enable programming language features. The end user (programmer) has control over these.
  • languageFeatures
    • comments
    • integerRadices
    • numericSeparators
  • compilerOptions
    • constantFolding
    • intCoercion
• add type-checking and improve constant-folding of expressions
• improve int coercion for arithmetic operations when constant-folding is turned off
• optimize exponentiation operation: a ^ b is faster when a is 0 or 1
• improve documentation & error reporting

Internal

• Add development flags to internal functionality and tests. Based only on package.json version number. Flags for a version should be removed & fully enabled before that version is released.
• replace Jest testing suite with Mocha
• abstract out cli scripting functionality into a CLI class
• reorganize code structures to match specification: from smallest/simplest to largest/most complex
• more structured code builder (mechanism that produces assembly code)