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Implement expand_task and list_macros

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This commit is contained in:
Edwin Cheng 2020-04-04 16:10:45 +08:00
parent f7f121d60d
commit e5698faf4c
1 changed files with 27 additions and 4 deletions
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31
crates/ra_proc_macro_srv/src/lib.rs
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@ -22,10 +22,33 @@ mod dylib;
use proc_macro::bridge::client::TokenStream;
use ra_proc_macro::{ExpansionResult, ExpansionTask, ListMacrosResult, ListMacrosTask};
pub fn expand_task(_task: &ExpansionTask) -> Result<ExpansionResult, String> {
unimplemented!()
pub fn expand_task(task: &ExpansionTask) -> Result<ExpansionResult, String> {
let expander = dylib::Expander::new(&task.lib)
.expect(&format!("Cannot expand with provided libraries: ${:?}", &task.lib));
match expander.expand(&task.macro_name, &task.macro_body, task.attributes.as_ref()) {
Ok(expansion) => Ok(ExpansionResult { expansion }),
Err(msg) => {
let reason = format!(
"Cannot perform expansion for {}: error {:?}!",
&task.macro_name,
msg.as_str()
);
Err(reason)
}
}
}
pub fn list_macros(_task: &ListMacrosTask) -> Result<ListMacrosResult, String> {
unimplemented!()
pub fn list_macros(task: &ListMacrosTask) -> Result<ListMacrosResult, String> {
let expander = dylib::Expander::new(&task.lib)
.expect(&format!("Cannot expand with provided libraries: ${:?}", &task.lib));
match expander.list_macros() {
Ok(macros) => Ok(ListMacrosResult { macros }),
Err(msg) => {
let reason =
format!("Cannot perform expansion for {:?}: error {:?}!", &task.lib, msg.as_str());
Err(reason)
}
}
}