Children returns a list of all child nodes of a syntax tree node.

DocumentedType returns the internal type to the equivalent user facing terminology as defined in the documentation.

Inspect traverses an AST in depth-first order: It starts by calling f(node, path); node must not be nil.

Lex creates a new scanner for the input string.

ParseExpr returns the expression parsed from the input.

ParseMetric parses the input into a metric.

ParseMetricSelector parses the provided textual metric selector into a list of label matchers.

ParseSeriesDesc parses the description of a time series.

Tree returns a string of the tree structure of the given node.

Walk traverses an AST in depth-first order: It starts by calling v.Visit(node, path); node must not be nil.

The valid value types.

The valid value types.

The valid value types.

The valid value types.

The valid value types.

Functions is a list of all functions supported by PromQL, including their types.

ItemTypeStr is the default string representations for common Items.

AggregateExpr represents an aggregation operation on a Vector.

BinaryExpr represents a binary expression between two child expressions.

Call represents a function call.

EvalStmt holds an expression and information on the range it should be evaluated on.

Function represents a function of the expression language and is used by function nodes.

Item represents a token or text string returned from the scanner.

Lexer holds the state of the scanner.

MatrixSelector represents a Matrix selection.

NumberLiteral represents a number.

ParenExpr wraps an expression so it cannot be disassembled as a consequence of operator precedence.

ParseErr wraps a parsing error with line and position context.

PositionRange describes a position in the input string of the parser.

SequenceValue is an omittable value in a sequence of time series values.

StepInvariantExpr represents a query which evaluates to the same result irrespective of the evaluation time given the raw samples from TSDB remain unchanged.

StringLiteral represents a string.

SubqueryExpr represents a subquery.

UnaryExpr represents a unary operation on another expression.

VectorMatching describes how elements from two Vectors in a binary operation are supposed to be matched.

VectorSelector represents a Vector selection.

Expr is a generic interface for all expression types.

Node is a generic interface for all nodes in an AST.

Statement is a generic interface for all statements.

Value is a generic interface for values resulting from a query evaluation.

Visitor allows visiting a Node and its child nodes.

Expressions is a list of expression nodes that implements Node.

Pos is the position in a string.

TestStmt is an internal helper statement that allows execution of an arbitrary function during handling.

ValueType describes a type of a value.

VectorMatchCardinality describes the cardinality relationship of two Vectors in a binary operation.