e33fe71c47
This puts caching in mentat_db, adds a reverse lookup capability for unique attributes, and populates bidirectional caches with a single SQL cursor walk. Differentiate between begin_read and begin_uncached_read. Note that we still allow toggling within InProgress, because there might be transient local state that makes starting a new transaction impossible.
147 lines
3.5 KiB
Rust
147 lines
3.5 KiB
Rust
// Copyright 2016 Mozilla
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//
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// Licensed under the Apache License, Version 2.0 (the "License"); you may not use
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// this file except in compliance with the License. You may obtain a copy of the
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// License at http://www.apache.org/licenses/LICENSE-2.0
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// Unless required by applicable law or agreed to in writing, software distributed
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// under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
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// CONDITIONS OF ANY KIND, either express or implied. See the License for the
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// specific language governing permissions and limitations under the License.
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#![recursion_limit="128"]
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#[macro_use]
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extern crate error_chain;
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#[macro_use]
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extern crate lazy_static;
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extern crate rusqlite;
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extern crate uuid;
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pub extern crate edn;
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extern crate mentat_core;
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extern crate mentat_db;
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extern crate mentat_query;
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extern crate mentat_query_algebrizer;
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extern crate mentat_query_parser;
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extern crate mentat_query_projector;
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extern crate mentat_query_translator;
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extern crate mentat_sql;
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extern crate mentat_tolstoy;
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extern crate mentat_tx;
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extern crate mentat_tx_parser;
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pub use mentat_core::{
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Attribute,
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Entid,
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HasSchema,
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KnownEntid,
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NamespacedKeyword,
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Schema,
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TypedValue,
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Uuid,
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ValueType,
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};
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pub use mentat_query::{
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FindSpec,
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};
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pub use mentat_db::{
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CORE_SCHEMA_VERSION,
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DB_SCHEMA_CORE,
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TxReport,
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new_connection,
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};
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/// Produce the appropriate `Variable` for the provided valid ?-prefixed name.
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/// This lives here because we can't re-export macros:
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/// https://github.com/rust-lang/rust/issues/29638.
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#[macro_export]
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macro_rules! var {
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( ? $var:ident ) => {
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$crate::Variable::from_valid_name(concat!("?", stringify!($var)))
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};
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}
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/// Produce the appropriate `NamespacedKeyword` for the provided namespace and name.
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/// This lives here because we can't re-export macros:
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/// https://github.com/rust-lang/rust/issues/29638.
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#[macro_export]
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macro_rules! kw {
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( : $ns:ident / $n:ident ) => {
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// We don't need to go through `new` -- `ident` is strict enough.
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$crate::NamespacedKeyword {
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namespace: stringify!($ns).into(),
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name: stringify!($n).into(),
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}
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};
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( : $ns:ident$(. $nss:ident)+ / $n:ident ) => {
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// We don't need to go through `new` -- `ident` is strict enough.
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$crate::NamespacedKeyword {
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namespace: concat!(stringify!($ns) $(, ".", stringify!($nss))+).into(),
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name: stringify!($n).into(),
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}
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};
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}
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pub mod errors;
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pub mod ident;
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pub mod vocabulary;
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pub mod conn;
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pub mod query;
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pub mod entity_builder;
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pub use query::{
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IntoResult,
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PlainSymbol,
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QueryExecutionResult,
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QueryExplanation,
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QueryInputs,
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QueryOutput,
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QueryPlanStep,
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QueryResults,
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Variable,
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q_once,
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};
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pub use conn::{
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CacheAction,
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CacheDirection,
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Conn,
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InProgress,
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Metadata,
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Queryable,
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Syncable,
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Store,
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};
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#[cfg(test)]
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mod tests {
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use edn::symbols::Keyword;
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use super::*;
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#[test]
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fn can_import_edn() {
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assert_eq!("foo", Keyword::new("foo").0);
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}
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#[test]
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fn test_kw() {
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assert_eq!(kw!(:foo/bar), NamespacedKeyword::new("foo", "bar"));
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assert_eq!(kw!(:org.mozilla.foo/bar_baz), NamespacedKeyword::new("org.mozilla.foo", "bar_baz"));
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}
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#[test]
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fn test_var() {
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let foo_baz = var!(?foo_baz);
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let vu = var!(?vü);
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assert_eq!(foo_baz, Variable::from_valid_name("?foo_baz"));
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assert_eq!(vu, Variable::from_valid_name("?vü"));
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assert_eq!(foo_baz.as_str(), "?foo_baz");
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}
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}
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