0.8.0

• Remove ID, TYPE, NOT op codes. Moving these back to builtins as it solves a lot of issues around directly referencing builtins like id
• Builtins now return ExprResult<Value> instead of Value
• Improved typechecking
  • Using builtins as call args
• As typing to AST
  • This happens in two passes. Once in the parser and once in the compiler.
• Changed BuiltinFn::func to be a function pointer versus accepting closures.
• Error diagnostics now have what type of error it was (e.g. lexical, compiler, runtime)
• Add Type::Type to help support first class type
• Update grammar to support Type identifiers

0.7.0

• Add opcode TYPE which replaces the builtin fn
• Add bytecode version prefixed as [u8; 4]

Full Changelog: 0.6.0...0.7.0

0.6.0

• Simplify lexing and parsing with a lex and parse function
• Add Value::Type as a first step towards first class type values
• Change builtins not and eq to be OP codes instead of functions

Full Changelog: 0.5.0...0.6.0

0.5.0

• Implement diagnostic messages for errors
• Improvements in REPL (tab completions, syntax highlighting)
• Improved error handling (recovering from lex errors, mapping lalrpop parse errors to syntax errors)

Full Changelog: 0.4.0...0.5.0

0.4.0

• Types
• Improved error handling
  • Using ExprResult in more places
  • Removing panics
  • Stop eating errors

0.3.0

• Client context values in compile and runtime environments
• More builtins

0.2.0

• Boolean values
• Several builtin functions added
  • is_empty
  • not
  • and
  • or
  • cond
  • to_str
  • concat
  • contains
• Improved disassembling on GET ops
• Add new op USER_BUILTIN

0.1.1

Add more data to cargo manifest

0.1.0

Initial release.

Builtins

All functions are builtins. Current builtins:

id

Returns the string that's passed in.

(id _) 

Where _ is an expression that evaluates to a string

noop

Returns the string `noop`

(noop)

Expression Types

• Identifier
• String (using backticks as delimiters)
• Call