prosaic-common

Shared type metadata for the Prosaic template engine.

This crate is the dependency-free, no_std layer shared by prosaic-core and prosaic-derive. It owns the public pipe type registry used by runtime template rendering and compile-time template validation.

Install

[dependencies]
prosaic-common = "1.0.1"

Most applications should depend on prosaic-core instead. Use this crate directly when you are writing tooling, macros, validators, or integrations that need to reason about Prosaic template slot and pipe types without pulling in the full engine.

What It Provides

• ValueType: the slot-level type model shared by the engine and derive macros.
• PipeSpec and PIPE_SPECS: the canonical registry of built-in pipe input and output types.
• pipe_spec: const-friendly pipe lookup by name.
• types_compatible: const-friendly compatibility checks for schema validation.
• schema_lookup: const-friendly lookup for hand-authored schema tables.

Example

use prosaic_common::{pipe_spec, types_compatible, ValueType};

let pipe = pipe_spec("pluralize").expect("pluralize is a built-in pipe");
assert_eq!(pipe.input, ValueType::Number);
assert_eq!(pipe.output, ValueType::String);

assert!(types_compatible(ValueType::Any, ValueType::String));
assert!(!types_compatible(ValueType::Number, ValueType::List));

License

MIT OR Apache-2.0