Module pr

PR, or “Parser Representation” is an AST representation of parsed PRQL. It takes LR tokens and converts them into a more structured form which understands expressions, such as tuples & functions.

Re-exports

pub use crate::lexer::lr::Literal;

pub use crate::span::Span;

Structs

Annotation

BinaryExpr

Expression with two operands and an operator, such as 1 + 2.

Expr

Expr is anything that has a value and thus a type. Most of these can contain other Expr themselves; literals should be ExprKind::Literal.

Func

Function called with possibly missing positional arguments. May also contain environment that is needed to evaluate the body.

FuncCall

Function call.

FuncParam

GenericTypeParam

Ident

A name. Generally columns, tables, functions, variables. This is glorified way of writing a “vec with at least one element”.

ImportDef

ModuleDef

Pipeline

A value and a series of functions that are to be applied to that value one after another.

QueryDef

Stmt

Ty

TyFunc

TypeDef

UnaryExpr

Expression with one operand and an operator, such as -1.

VarDef

Enums

BinOp

ExprKind

IndirectionKind

PrimitiveSet

Built-in sets.

StmtKind

TyKind

TyTupleField

UnOp

VarDefKind

Functions

display_ident

display_ident_part

Type Aliases

InterpolateItem

Range

SwitchCase