lemma/
lib.rs

1//! # Lemma Engine
2//!
3//! **Rules for man and machine**
4//!
5//! Consumer API: **`load`** → **`list`** → **`show`** / **`source`** → **`run`**.
6
7#[cfg(test)]
8mod tests;
9
10pub(crate) mod computation;
11pub(crate) mod engine;
12pub(crate) mod error;
13pub(crate) mod evaluation;
14pub(crate) mod formatting;
15pub(crate) mod limits;
16pub(crate) mod literals;
17pub(crate) mod parsing;
18pub(crate) mod planning;
19pub(crate) mod registry;
20pub mod result_value;
21pub(crate) mod spec_set_id;
22pub(crate) mod stdlib;
23
24#[cfg(not(target_arch = "wasm32"))]
25pub mod deps;
26
27#[cfg(target_arch = "wasm32")]
28pub mod wasm;
29
30pub use computation::{OperationResult, VetoType};
31pub use engine::{
32    resolve_effective, Engine, Errors, ListedSpec, ResolvedRepository, EMBEDDED_STDLIB_REPOSITORY,
33};
34pub use error::{EngineError, EngineErrorSource, Error, ErrorDetails, ErrorKind, RequestErrorKind};
35pub use evaluation::explanations::{format_explanation, Cause, Explanation, ExplanationNode};
36pub use evaluation::response::{Response, RuleResult};
37pub use evaluation::run_data::RunDataValue;
38pub use formatting::{format_parse_result, format_source, format_specs};
39pub use limits::{
40    ResourceLimits, MAX_DATA_NAME_LENGTH, MAX_RULE_NAME_LENGTH, MAX_SPEC_NAME_LENGTH,
41};
42pub use literals::{DateGranularity, MeasureUnit, MeasureUnits, RatioUnit, RatioUnits};
43pub use parsing::ast::DateTimeValue;
44pub use parsing::source::SourceType;
45pub use planning::execution_plan::type_detail_lines;
46pub use planning::execution_plan::{Show, ShowData, ShowVersion};
47pub use planning::explanation::{ConversionTraceRole, SerializedConversionTraceStep};
48pub use planning::semantics::{DataPath, LemmaType, LiteralValue, TypeSpecification, ValueKind};
49pub use result_value::{CalendarResult, RangeResult, RuleResultValue, RuleResultValueFailure};
50pub use spec_set_id::parse_spec_set_id;
51pub use stdlib::UNITS_LEMMA;
52
53/// Exact rational helpers for in-tree integration tests. Not a supported consumer API.
54#[doc(hidden)]
55pub mod __test_support {
56    pub use crate::computation::rational::{
57        checked_div, checked_mul, decimal_to_rational, rational_new,
58    };
59    pub use crate::literals::TimeValue;
60    pub use crate::planning::semantics::{SemanticDateTime, SemanticTime, SemanticTimezone};
61
62    /// Serializes an [`Error`](crate::Error) as [`EngineError`](crate::EngineError).
63    pub fn current_binding_error_json(error: &crate::Error) -> serde_json::Value {
64        serde_json::to_value(crate::EngineError::from(error))
65            .expect("BUG: EngineError must serialize")
66    }
67}
68
69// Tier 1 — language surface (always)
70pub use parsing::ast::{
71    try_parse_type_constraint_command, DataValue, Span, SpecRef, TimezoneValue,
72};
73pub use parsing::lexer::{Lexer, TokenKind};
74pub use parsing::source::Source;
75pub use parsing::{parse, ParseResult};
76
77// Tier 2 — registry network (feature-gated)
78#[cfg(feature = "registry")]
79pub use engine::Context;
80#[cfg(feature = "registry")]
81pub use parsing::ast::{LemmaRepository, LemmaSpec};
82#[cfg(feature = "registry")]
83pub use planning::LemmaSpecSet;
84#[cfg(all(feature = "registry", not(target_arch = "wasm32")))]
85pub use registry::resolve_registry_references;
86pub use registry::RegistryErrorKind;
87#[cfg(feature = "registry")]
88pub use registry::{LemmaBase, Registry, RegistryBundle, RegistryError};
lemma/lib.rs

lemma/
lib.rs
