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Rerail split_import API onto AST

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The code is more verbose and less efficient now, but should be
reusable in add_import context as well
This commit is contained in:
Aleksey Kladov 2020-03-05 19:03:14 +01:00
parent d75577fcee
commit ea0c124219
3 changed files with 72 additions and 19 deletions
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21
crates/ra_syntax/src/ast/make.rs
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@ -25,6 +25,27 @@ fn path_from_text(text: &str) -> ast::Path {
ast_from_text(text)
}
pub fn use_tree(
path: ast::Path,
use_tree_list: Option<ast::UseTreeList>,
alias: Option<ast::Alias>,
) -> ast::UseTree {
let mut buf = "use ".to_string();
buf += &path.syntax().to_string();
if let Some(use_tree_list) = use_tree_list {
buf += &format!("::{}", use_tree_list.syntax());
}
if let Some(alias) = alias {
buf += &format!(" {}", alias.syntax());
}
ast_from_text(&buf)
}
pub fn use_tree_list(use_trees: impl IntoIterator<Item = ast::UseTree>) -> ast::UseTreeList {
let use_trees = use_trees.into_iter().map(|it| it.syntax().clone()).join(", ");
ast_from_text(&format!("use {{{}}};", use_trees))
}
pub fn record_field(name: ast::NameRef, expr: Option<ast::Expr>) -> ast::RecordField {
return match expr {
Some(expr) => from_text(&format!("{}: {}", name.syntax(), expr.syntax())),