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@johnnyt johnnyt released this 31 Aug 00:05
· 435 commits to main since this release
v3.1.0
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[3.1.0] - 2025-08-30

Added

JavaScript-Style Object Literals (Complete Implementation)

  • Object Literal Syntax: Full support for JavaScript-style object notation with {key: value} syntax
  • Multiple Key Types: Both identifier keys (name: "John") and string keys ("first name": "John")
  • Nested Objects: Unlimited nesting depth for complex data structures
  • All Value Types: Objects support all Predicator value types (strings, numbers, booleans, dates, lists, expressions)
  • Object Comparisons: Full equality and inequality operations between objects
  • Integration: Seamless compatibility with all existing features (functions, operators, property access)

Object Literal Examples

# Basic object creation
Predicator.evaluate("{}", %{})                                    # {:ok, %{}}
Predicator.evaluate("{name: \"John\", age: 30}", %{})            # {:ok, %{"name" => "John", "age" => 30}}

# Variable references and expressions
Predicator.evaluate("{user: name, total: price + tax}", %{"name" => "Alice", "price" => 100, "tax" => 10})
# {:ok, %{"user" => "Alice", "total" => 110}}

# Nested objects
Predicator.evaluate("{user: {name: \"Bob\", role: \"admin\"}, active: true}", %{})
# {:ok, %{"user" => %{"name" => "Bob", "role" => "admin"}, "active" => true}}

# String keys for complex property names
Predicator.evaluate("{\"first name\": \"John\", \"last-name\": \"Doe\"}", %{})
# {:ok, %{"first name" => "John", "last-name" => "Doe"}}

# Object comparisons
Predicator.evaluate("{score: 85} == user_data", %{"user_data" => %{"score" => 85}})
# {:ok, true}

Complete Pipeline Support

  • Lexer: Added {, }, : token recognition
  • Parser: Full object grammar with proper precedence and error handling
  • Instructions: Stack-based object_new and object_set instruction execution
  • Evaluator: Efficient object construction and comparison operations
  • String Visitor: Bidirectional transformation support (AST ↔ string representation)
  • Type System: Enhanced type matching for object equality comparisons

Integration Features

  • Function Integration: Objects work as function parameters and return values
  • Property Access: Objects integrate with dot notation (obj.property) and bracket access (obj["key"])
  • Boolean Logic: Objects support all logical operations (AND, OR, NOT)
  • Arithmetic: Object properties can contain arithmetic expressions and results
  • Date Support: Objects can contain date/datetime literals and date function results
  • Custom Functions: Objects work seamlessly with user-defined functions

Quality and Testing

  • 886 Total Tests: Comprehensive test coverage including edge cases and integration scenarios
  • 91.8% Coverage: High test coverage across all components
  • Parser Error Handling: Robust error recovery for malformed object syntax
  • Performance Tested: Validated with large objects and repeated evaluations
  • Production Ready: Full quality assurance (formatting, linting, type checking)
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