a5023c70cb
Part 1, core: use Rc for String and Keyword. Part 2, query: use Rc for Variable. Part 3, sql: use Rc for args in SQLiteQueryBuilder. Part 4, query-algebrizer: use Rc. Part 5, db: use Rc. Part 6, query-parser: use Rc. Part 7, query-projector: use Rc. Part 8, query-translator: use Rc. Part 9, top level: use Rc. Part 10: intern Ident and IdentOrKeyword.
50 lines
1.7 KiB
Rust
50 lines
1.7 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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extern crate mentat_query;
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use self::mentat_query::{
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PlainSymbol,
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};
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error_chain! {
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types {
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Error, ErrorKind, ResultExt, Result;
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}
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errors {
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UnknownFunction(name: PlainSymbol) {
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description("no such function")
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display("no function named {}", name)
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}
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InvalidNumberOfArguments(name: PlainSymbol, number: usize, expected: usize) {
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description("invalid number of arguments")
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display("invalid number of arguments to {}: expected {}, got {}.", name, expected, number)
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}
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UnboundVariable(name: PlainSymbol) {
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description("unbound variable in function call")
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display("unbound variable: {}", name)
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}
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NonNumericArgument(function: PlainSymbol, position: usize) {
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description("invalid argument")
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display("invalid argument to {}: expected numeric in position {}.", function, position)
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}
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NonMatchingVariablesInOrClause {
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// TODO: flesh out.
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description("non-matching variables in 'or' clause")
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display("non-matching variables in 'or' clause")
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}
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}
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}
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