Module rtlola_parser::ast

This module contains the RtLolaAst data structures for the RTLola Language.

Every node in the abstract syntax tree is assigned a unique id and has a span referencing the node’s location in the specification.

Structs

ActivationCondition	An Ast node representing the declaration of a activation condition of a stream.
CloseSpec	An Ast node representing the declaration of a close condition of a stream template
Constant	An Ast node representing the declaration of a constant.
Expression	The Ast representation of a stream expression
FilterSpec	An Ast node representing the declaration of a filter condition of a stream template
FunctionName	An Ast node representing the name of a called function and also the names of the arguments.
Ident	This struct represents an identifier in the specification. For example the name of an Output or Input.
Import	An Ast node representing the import of a module, which brings additional implemented functionality to a specification. The ‘math’ module, for example, adds pre-defined mathematical functions as the sine or cosine function.
Input	An Ast node representing the declaration of an input stream.
Literal	An Ast node representing the declaration of a literal
NodeId	Every node in the Ast gets a unique id, represented by a 32bit unsigned integer. They are used in the later analysis phases to store information about Ast nodes.
Output	An Ast node representing the declaration of an output stream.
Parameter	An Ast node representing the declaration of a parameter of a parametrized stream.
Parenthesis	An Ast node representing an opening or closing parenthesis.
RtLolaAst	The root of a RTLola specification, consisting of stream and trigger declarations. Each declaration contains the id of the Ast node, a span, and declaration-specific components.
SpawnSpec	An Ast node representing the declaration of a spawn condition of a stream template.
Trigger	An Ast node representing the declaration of a trigger
Type	An Ast node representing the declaration of a value type
TypeDeclField	An Ast node representing the declaration of a field of a user-defined type.
TypeDeclaration	An Ast node representing the declaration of a user-defined type.

Enums

BinOp	An Ast node representing a binary operator.
ExpressionKind	The Ast representation of a single expression
LitKind	The Ast representation of literals
Offset	Describes the operation used to access a stream with a offset
StreamAccessKind	Describes the operation used to access a stream
TimeUnit	Supported time unit for real time expressions
TypeKind	Ast representation of the value type of a stream
UnOp	An Ast node representing an unary operator.
WindowOperation	The Ast representation of the different aggregation functions