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https://github.com/zaphar/ucg.git
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69 lines
2.2 KiB
Rust
69 lines
2.2 KiB
Rust
// Copyright 2017 Jeremy Wall <jeremy@marzhillstudios.com>
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//! The conversion stage of the ucg compiler.
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pub mod env;
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pub mod exec;
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pub mod flags;
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pub mod json;
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pub mod toml;
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pub mod traits;
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pub mod yaml;
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use std::collections::HashMap;
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/// ConverterRunner knows how to run a given converter on a Val.
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pub struct ConverterRegistry {
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converters: HashMap<String, Box<traits::Converter>>,
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}
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impl ConverterRegistry {
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/// new creates a new ConverterRunner with a converter for the provided output target.
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///
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/// * flags
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/// * json
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/// * env
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/// * exec
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fn new() -> Self {
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ConverterRegistry {
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converters: HashMap::new(),
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}
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}
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pub fn make_registry() -> Self {
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let mut registry = Self::new();
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registry.register("json", Box::new(json::JsonConverter::new()));
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registry.register("env", Box::new(env::EnvConverter::new()));
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registry.register("flags", Box::new(flags::FlagConverter::new()));
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registry.register("exec", Box::new(exec::ExecConverter::new()));
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registry.register("yaml", Box::new(yaml::YamlConverter::new()));
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registry.register("toml", Box::new(toml::TomlConverter::new()));
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registry
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}
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pub fn register<S: Into<String>>(&mut self, typ: S, converter: Box<traits::Converter>) {
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self.converters.insert(typ.into(), converter);
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}
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pub fn get_converter(&self, typ: &str) -> Option<&traits::Converter> {
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self.converters.get(typ).map(|c| c.as_ref())
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}
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pub fn get_converter_list(&self) -> Vec<(&String, &Box<traits::Converter>)> {
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self.converters.iter().collect()
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}
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// TODO(jwall): Support converter help descriptions.
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}
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