PairExpression represents a key/value pair in method parameters or arguments.

ArrayExpression defines the array expression literal which contains the node expression and its value.

AssignExpression represents variable assignment in Goby.

BaseNode holds the attribute every expression or statement should have.

BooleanExpression defines the boolean expression literal which contains the node expression and its value.

BreakStatement represents "break" keyword.

ConditionalExpression represents if or elsif expression.

FloatLiteral contains the node expression and its value.

GetBlockExpression represents `get_block` call in the AST.

HashExpression defines the hash expression literal which contains the node expression and its value.

IntegerLiteral contains the node expression and its value.

ModuleStatement represents module node in AST.

MultiVariableExpression is not really an expression, it's just a container that holds multiple Variables.

NextStatement represents "next" keyword.

NilExpression represents nil node.

Program is the root node of entire AST.

RangeExpression defines the range expression literal which contains the node expression and its start/end value.

StringLiteral contains the node expression and its value.

TestableArrayExpression.

TestableAssignExpression.

TestableBooleanExpression.

TestableCallExpression.

TestableConditionalExpression.

TestableConstant.

TestableHashExpression.

TestableIdentifier.

TestableIfExpression.

TestableInfixExpression.

TestableInstanceVariable.

TestableIntegerLiteral.

TestableSelfExpression.

TestableStringLiteral.

TestableYieldExpression.

TestableExpression interface implements basic Expression's functions, and helper functions to assert node's type.

Variable interface represents assignable nodes in Goby, currently are Identifier, InstanceVariable and Constant.

TestableIdentifierValue for marking a string as an identifier's value for test.