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// Copyright 2018-2021 the Deno authors. All rights reserved. MIT license.
// The logic of this module is heavily influenced by
// https://github.com/microsoft/vscode/blob/main/extensions/typescript-language-features/src/languageFeatures/refactor.ts
use deno_core::serde::Deserialize;
use deno_core::serde::Serialize;
use deno_core::ModuleSpecifier;
use lspower::lsp;
pub struct RefactorCodeActionKind {
pub kind: lsp::CodeActionKind,
matches_callback: Box<dyn Fn(&str) -> bool + Send + Sync>,
}
impl RefactorCodeActionKind {
pub fn matches(&self, tag: &str) -> bool {
(self.matches_callback)(tag)
}
}
lazy_static::lazy_static! {
pub static ref EXTRACT_FUNCTION: RefactorCodeActionKind = RefactorCodeActionKind {
kind : [lsp::CodeActionKind::REFACTOR_EXTRACT.as_str(), "function"].join(".").into(),
matches_callback: Box::new(|tag: &str| tag.starts_with("function_")),
};
pub static ref EXTRACT_CONSTANT: RefactorCodeActionKind = RefactorCodeActionKind {
kind : [lsp::CodeActionKind::REFACTOR_EXTRACT.as_str(), "constant"].join(".").into(),
matches_callback: Box::new(|tag: &str| tag.starts_with("constant_")),
};
pub static ref EXTRACT_TYPE: RefactorCodeActionKind = RefactorCodeActionKind {
kind : [lsp::CodeActionKind::REFACTOR_EXTRACT.as_str(), "type"].join(".").into(),
matches_callback: Box::new(|tag: &str| tag.starts_with("Extract to type alias")),
};
pub static ref EXTRACT_INTERFACE: RefactorCodeActionKind = RefactorCodeActionKind {
kind : [lsp::CodeActionKind::REFACTOR_EXTRACT.as_str(), "interface"].join(".").into(),
matches_callback: Box::new(|tag: &str| tag.starts_with("Extract to interface")),
};
pub static ref MOVE_NEWFILE: RefactorCodeActionKind = RefactorCodeActionKind {
kind : [lsp::CodeActionKind::REFACTOR.as_str(), "move", "newFile"].join(".").into(),
matches_callback: Box::new(|tag: &str| tag.starts_with("Move to a new file")),
};
pub static ref REWRITE_IMPORT: RefactorCodeActionKind = RefactorCodeActionKind {
kind : [lsp::CodeActionKind::REFACTOR_REWRITE.as_str(), "import"].join(".").into(),
matches_callback: Box::new(|tag: &str| tag.starts_with("Convert namespace import") || tag.starts_with("Convert named imports")),
};
pub static ref REWRITE_EXPORT: RefactorCodeActionKind = RefactorCodeActionKind {
kind : [lsp::CodeActionKind::REFACTOR_REWRITE.as_str(), "export"].join(".").into(),
matches_callback: Box::new(|tag: &str| tag.starts_with("Convert default export") || tag.starts_with("Convert named export")),
};
pub static ref REWRITE_ARROW_BRACES: RefactorCodeActionKind = RefactorCodeActionKind {
kind : [lsp::CodeActionKind::REFACTOR_REWRITE.as_str(), "arrow", "braces"].join(".").into(),
matches_callback: Box::new(|tag: &str| tag.starts_with("Add or remove braces in an arrow function")),
};
pub static ref REWRITE_PARAMETERS_TO_DESTRUCTURED: RefactorCodeActionKind = RefactorCodeActionKind {
kind : [lsp::CodeActionKind::REFACTOR_REWRITE.as_str(), "parameters", "toDestructured"].join(".").into(),
matches_callback: Box::new(|tag: &str| tag.starts_with("Convert parameters to destructured object")),
};
pub static ref REWRITE_PROPERTY_GENERATEACCESSORS: RefactorCodeActionKind = RefactorCodeActionKind {
kind : [lsp::CodeActionKind::REFACTOR_REWRITE.as_str(), "property", "generateAccessors"].join(".").into(),
matches_callback: Box::new(|tag: &str| tag.starts_with("Generate 'get' and 'set' accessors")),
};
pub static ref ALL_KNOWN_REFACTOR_ACTION_KINDS: Vec<&'static RefactorCodeActionKind> = vec![
&EXTRACT_FUNCTION,
&EXTRACT_CONSTANT,
&EXTRACT_TYPE,
&EXTRACT_INTERFACE,
&MOVE_NEWFILE,
&REWRITE_IMPORT,
&REWRITE_EXPORT,
&REWRITE_ARROW_BRACES,
&REWRITE_PARAMETERS_TO_DESTRUCTURED,
&REWRITE_PROPERTY_GENERATEACCESSORS
];
}
#[derive(Debug, Serialize, Deserialize)]
#[serde(rename_all = "camelCase")]
pub struct RefactorCodeActionData {
pub specifier: ModuleSpecifier,
pub range: lsp::Range,
pub refactor_name: String,
pub action_name: String,
}
pub fn prune_invalid_actions(
actions: &[lsp::CodeAction],
number_of_invalid: usize,
) -> Vec<lsp::CodeAction> {
let mut available_actions = Vec::<lsp::CodeAction>::new();
let mut invalid_common_actions = Vec::<lsp::CodeAction>::new();
let mut invalid_uncommon_actions = Vec::<lsp::CodeAction>::new();
for action in actions {
if action.disabled.is_none() {
available_actions.push(action.clone());
continue;
}
// These are the common refactors that we should always show if applicable.
let action_kind =
action.kind.as_ref().map(|a| a.as_str()).unwrap_or_default();
if action_kind.starts_with(EXTRACT_CONSTANT.kind.as_str())
|| action_kind.starts_with(EXTRACT_FUNCTION.kind.as_str())
{
invalid_common_actions.push(action.clone());
continue;
}
// These are the remaining refactors that we can show if we haven't reached the max limit with just common refactors.
invalid_uncommon_actions.push(action.clone());
}
let mut prioritized_actions = Vec::<lsp::CodeAction>::new();
prioritized_actions.extend(invalid_common_actions);
prioritized_actions.extend(invalid_uncommon_actions);
let top_n_invalid = prioritized_actions
[0..std::cmp::min(number_of_invalid, prioritized_actions.len())]
.to_vec();
available_actions.extend(top_n_invalid);
available_actions
}
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