Module ast

Structs

• AggregateExpr
  Grammar:
• BinModifier
  Binary Expr Modifier
• BinaryExpr
  Grammar:
• Call
  Call represents Prometheus Function. Some functions have special cases:
• EvalStmt
  EvalStmt holds an expression and information on the range it should be evaluated on.
• Extension
  Node for extending the AST. Extension won’t be generate by this parser itself.
• MatrixSelector
• NumberLiteral
• ParenExpr
• StringLiteral
• SubqueryExpr
  Grammar:
• UnaryExpr
  UnaryExpr will negate the expr
• VectorSelector

Enums

• AtModifier
• Expr
• LabelModifier
  LabelModifier acts as
• Offset
• VectorMatchCardinality
  The label list provided with the group_left or group_right modifier contains additional labels from the “one”-side to be included in the result metrics.

Traits

• ExtensionExpr
  The interface for extending the AST with custom expression node.