class Evaluator::Evaluator

• Evaluator::Evaluator
• Reference
• Object

Defined in:

evaluator/evaluator.cr

Constant Summary

FALSE = PheltObject::Boolean.new(false)

NULL = PheltObject::Null.new

TRUE = PheltObject::Boolean.new(true)

Constructors

• .new(program : AST::Program, env : PheltObject::Environment = PheltObject::Environment.new)

Instance Method Summary

• #apply_function(function : PheltObject::Function | PheltObject::Builtin, args : Array(PheltObject::Object), env : PheltObject::Environment)
• #bool_to_boolean(value)
• #env : PheltObject::Environment
• #env=(env : PheltObject::Environment)
• #error(error : String)
• #error?(value)
• #eval(node : AST::Node, env : PheltObject::Environment) : PheltObject::Object
• #eval(node : Nil)
• #eval
• #eval_array_index_expression(array : PheltObject::Array, index : PheltObject::Integer)
• #eval_assignment_infix_expression(operator : String, left : AST::Expression, right : PheltObject::Object, env : PheltObject::Environment)
• #eval_bang_operator_expression(right : PheltObject::Object)
• #eval_block_statement(block : AST::BlockStatement, env : PheltObject::Environment)
• #eval_broad_assignment_infix_expression(operator : String, left : AST::Expression, right : PheltObject::Object, env : PheltObject::Environment)
• #eval_do(body : AST::BlockStatement, env : PheltObject::Environment)
• #eval_expressions(expressions : Array(AST::Expression), env : PheltObject::Environment)
• #eval_for(node : AST::ForExpression, env : PheltObject::Environment)
• #eval_hash_index_expression(hash : PheltObject::Hash, index : PheltObject::Hashable)
• #eval_hash_literal(node : AST::HashLiteral, env : PheltObject::Environment)
• #eval_identifier(node : AST::Identifier, env : PheltObject::Environment)
• #eval_if_expression(expression : AST::IfExpression, env : PheltObject::Environment)
• #eval_indecrement_infix_expression(operator : String, left : AST::Expression, env : PheltObject::Environment)
• #eval_indecrement_prefix_operator_expression(node : AST::PrefixExpression, right : PheltObject::Object, env : PheltObject::Environment)
• #eval_index_expression(left, index : PheltObject::Object)
• #eval_infix_expression(operator : String, left : PheltObject::Object, right : PheltObject::Object)
• #eval_internal_object_access(object : PheltObject::Object, index : PheltObject::String, env : PheltObject::Environment, args : Array(PheltObject::Object) | Nil)
• #eval_minus_prefix_operator_expression(right : PheltObject::Object)
• #eval_number_assignment_infix_expression(operator : String, left : AST::Expression, right : PheltObject::Number, env : PheltObject::Environment)
• #eval_number_infix_expression(operator : String, left : PheltObject::Number, right : PheltObject::Number)
• #eval_object_access_expression(object : PheltObject::Object, index : PheltObject::String, env : PheltObject::Environment, args : Array(PheltObject::Object) | Nil = nil)
• #eval_prefix_expression(node : AST::PrefixExpression, right : PheltObject::Object, env : PheltObject::Environment)
• #eval_program(statements : Array(AST::Statement), env : PheltObject::Environment)
• #eval_string_assignment_infix_expression(operator : String, left : AST::Expression, right : PheltObject::String, env : PheltObject::Environment)
• #eval_string_index_expression(string : PheltObject::String, index : PheltObject::Integer)
• #eval_string_infix_expression(operator : String, left : PheltObject::String, right : PheltObject::String)
• #eval_while(node : AST::WhileExpression, env : PheltObject::Environment)
• #extend_function_env(function : PheltObject::Function, args : Array(PheltObject::Object))
• #load_objects_env
• #program : AST::Program
• #program=(program : AST::Program)
• #truthy?(object : PheltObject::Object)
• #unwrap_return_value(object : PheltObject::Object)

Constructor Detail

Instance Method Detail