class Drizzle::Evaluator

• Drizzle::Evaluator
• Reference
• Object

Overview

Module containing an overloaded evaluation function that evaluates all the various node types

Defined in:

drizzle/evaluator.cr

Class Method Summary

• .eval(node : AST::Program, env : Environment) : Object::Object

  eval method for program nodes, the starting point of any drizzle program

• .eval(node : AST::BlockStatement, env : Environment) : Object::Object

  eval method for block nodes, which represent a collection of statements

• .eval(node : AST::IfStatement, env : Environment) : Object::Object

  eval method for if statements

• .eval(node : AST::Return, env : Environment) : Object::Object

  eval method for return statements

• .eval(node : AST::Let, env : Environment) : Object::Object

  eval method for let statements

• .eval(node : AST::Function, env : Environment) : Object::Object

  eval statement for function definitions

• .eval(node : AST::ExpressionStatement, env : Environment) : Object::Object

  eval method for expression statement nodes, which represent expressions on their own (e.g.

• .eval(node : AST::PrefixExpression, env : Environment) : Object::Object

  eval method for prefix expression nddes

• .eval(node : AST::InfixExpression, env : Environment) : Object::Object

  eval method for infix expression nodes

• .eval(node : AST::CallExpression, env : Environment) : Object::Object

  eval method for call expressions, formed as a result of calling a function

• .eval(node : AST::IntegerLiteral, env : Environment) : Object::Object

  eval method for integer literal nodes

• .eval(node : AST::BooleanLiteral, env : Environment) : Object::Object

  eval method for boolean literal nodes

• .eval(node : AST::Identifier, env : Environment) : Object::Object

  eval method for identifiers

• .eval(node : AST::Node, env : Environment) : Object::Object

  temp catchall method

• .eval(node : Nil, env : Environment) : Object::Object

  temp handling for nil nodes since expressionstatement can have a nil expression

Class Method Detail