Module rtlola_frontend::ast

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

Every node in the abstract syntax tree is assigned a unique id and stores the matching span in the specification.

Structs

ActivationCondition	An AST node representing the declaration of a activation condition of a stream.
Constant	An AST node representing the declaration of a constant.
Expression	The AST representation of a stream expression inspired by https://doc.rust-lang.org/nightly/nightly-rustc/src/syntax/ast.rs.html
ExtendSpec	An AST node representing the declaration of an extend condition of a parametrized stream
FunctionName	An AST node representing the name of a called function and also the names of the arguments.
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.
InvokeSpec	An AST node representing the declaration of an invoke condition of a parametrized stream
Literal	An AST node representing the declaration of a literal
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, the span in the input specification file, and declaration specific components.
TemplateSpec	An AST node representing the declaration of a template of a parametrized stream.
TerminateSpec	An AST node representing the declaration of a termination condition of a parametrized stream
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