0.4.2

Libraries

• [@CrazedProgrammer] Add list/split.
• [@Lignum] Add list/take-while.
• [@Lignum] Add math/atan2.

Compiler

• [@SquidDev] Port the resolver loop to Urn

Codegen

• [@SquidDev] Make variable mangling to be aware of scope
• [@SquidDev] Allow symbols to provide a "display name" for use in emitted code.
• [@SquidDev] Detect letrec loops as tail-recursive.
• [@SquidDev] Inline letrec loops which are only used once.
• [@SquidDev] Pattern match against common recursion patterns.

0.4.1

Libraries

• [@SquidDev] Add insert-nth!

Compiler

• [@SquidDev] Port the resolver scope, state and compiler loop system to Urn.
• [@SquidDev] Fix tail calls being considered expressions.
• [@SquidDev] Reshuffle node visitor code, resulting in more efficient code generation.

0.4.0

Libraries

• [@demhydraz] Add even? and odd?
• [@demhydraz] Add pattern matching for structures.
• [@demhydraz] Add some set-like operators for lists.
• [@demhydraz] Add if-match - a case with a default _ branch.
• [@demhydraz] Add extend for associated lists. This inserts at the beginning of the key rather than the end.
• [@SquidDev] Allow assert-type! to work on any expression.
• [@demhydraz] Add implication operator.
• [@CrazedProgrammer] Add bit32 bindings and a software fallback.
• [@demhydraz] Make # work for non-lists.
• [@demhydraz] Make pattern qualifiers infix.
• [@demhydraz] Rename # to n.
• [@demhydraz] Add eql? - eq? with a more strict type comparison.
• [@incinirate] Improve nub implementation.
• [@CrazedProgrammer] Add extra/bignum implementation.

Compiler

• [@SquidDev] Add a system for rewrite rules.
• [@SquidDev] Change hexadecimal and binary literals to use # instead of 0 as their prefix.

Codegen

• [@SquidDev] Use category system for quotes
• [@SquidDev] Allow operators to accept multiple values
• [@SquidDev] Convert tail recursive definitions to loops.
• [@SquidDev] Various bug fixes for directly called lambdas.

0.3.1

Libraries

• [@demhydraz] Ensure pattern metavars are only seen once.
• [@demhydraz] Add flat-map.
• [@demhydraz] Add a general recursion helper (loop).
• [@demhydraz] Deprecate traverse.
• [@demhydraz] Remove assert.

Compiler

• [@SquidDev] Add ability to mark symbols as deprecated.
• [@SquidDev] Fix --gen-native generating invalid code when using strange prefixes.
• [@SquidDev] Warn when links in docstrings are invalid.

0.3.0

Libraries

• [@demhydraz] Remove const-struct and empty-struct.
• [@demhydraz] Add active-module and scope-vars.
• [@demhydraz] Add apply.
• [@demhydraz] Make map have a variable number of arguments.
• [@demhydraz] Rename nil? to empty?, and use nil? to check for nil-ness.

CLI

• [@SquidDev] Improve REPL's mulit-line support.

Compiler

• [@SquidDev] Add struct-literal builtin, allowing defining tables.
• [@SquidDev] Suggest similar names variables when a symbol cannot be resolved.
• [@SquidDev] Minor lexer fixes.

Codegen

• [@SquidDev] Fix and and or including statements.

0.2.9

Libraries

• [@demhydraz] Add pattern matching lambdas
• [@SquidDev] Add the ability to query the current compiler state/scope
• [@demhydraz] Add reify.
• [@demhydraz] Add sym...

Optimiser / Codegen

• [@SquidDev] Ensure the condition is an expression for and/or.
• [@SquidDev] Improve visiting of nodes inside expression-fold.

0.2.8

Libraries

• [@SquidDev] Fix struct and friends not checking argument length.

Compiler

• [@SquidDev] Allow multiple returns from top level unquotes and macros.
• [@SquidDev] Allow unquote-splice to be used in the top level, as well as unquote accepting multiple arguments.

Optimiser / Codegen

• [@SquidDev] Don't simplify conds where the test symbol is mutated.
• [@SquidDev] Improved compilation of and/or in non-conditional contexts.

0.2.7

Libraries

• [@SquidDev] Add compiler plugin API
• [@Lignum] Add struct->list.

CLI

• [@demhydraz] Add --exec task, which reads in a program from stdin and executes it.
• [@SquidDev] Escape illegal identifiers in the gen-native task.

Optimiser / Codegen

• [@SquidDev] Include line numbers when dumping invalid sources
• [@SquidDev] Remove set! when its definition is destroyed.
• [@SquidDev] Simplify lambdas which are designed to avoid multiple-return values
• [@SquidDev] Inline directly called lambdas where execution order will not be modified
• [@SquidDev] Don't emit empty else blocks.
• [@SquidDev] Simplify conditionals where the result is only a boolean.

0.2.6

Libraries

• [@demhydraz] Add handler-case, a pattern matching error handler.
• [@demhydraz] Add use for variables with finalisers
• [@demhydraz] Make debug print the input expression and value, returning the input value.
• [@demhydraz] Add pretty support for structs.
• [@demhydraz] Make nil? work on empty strings.
• [@SquidDev] Add setf! and over!.

CLI

• [@demhydraz] Add theming to the REPL. This can be done by setting the argument variable URN_COLOURS
  to something of the form (text 0) (bold 1), etc...
• [@SquidDev] Add :module command to display information about the given module.

0.2.5

Libraries

• [@demhydraz] Add a matches? to test if a pattern matches.
• [@demhydraz] Allow using arbitrary predicates in pattern matching.
• [@demhydraz] Add mutating version of insert.
• [@demhydraz] Allow any number of optional values to be missing in pattern matching.

CLI

• [@SquidDev] Add stack sampling profiler, with flamegraph support.

Optimiser

• [@SquidDev] Optimise usage analysis, shaving 0.3 seconds off compilation.