Module weld::data

Structures that can be passed into Weld.

This currently defines the type layout specified for the single threaded backend. In general, type layouts vary from backend to backend especially for builders.

Primitives

Primitives in Weld match their Rust counterparts, except for booleans. Booleans in Weld are guaranteed to be one byte in size, but are defined as _Bool from stdbool.h in Rust when defined in a struct with repr(C).

Vectors

Vectors will always have the same layout: a pointer followed by a 64-bit length.

Builders

Builders are backend-specific and have layouts that may change at any time. Therefore, the builder definitions here should be used as opaque sized types rather than as structs whose fields can be accessed.

Structs

Appender	The appender builder type.
Dict	The dictionary type.
DictMerger	The dictmerger builder type.
GroupMerger	The groupmerger builder type.
WeldVec	A dynamically sized constant vector.

Type Definitions

WeldBool

A boolean in Weld.