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internal: Implement module_path macro

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This commit is contained in:
Lukas Wirth 2024-08-21 12:22:15 +02:00
parent 9b7b93e031
commit d44a3ab30c
20 changed files with 279 additions and 71 deletions
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30
crates/hir-expand/src/builtin/fn_macro.rs
View file

@ -116,7 +116,6 @@ register_builtin! {
(column, Column) => line_expand,
(file, File) => file_expand,
(line, Line) => line_expand,
(module_path, ModulePath) => module_path_expand,
(assert, Assert) => assert_expand,
(stringify, Stringify) => stringify_expand,
(llvm_asm, LlvmAsm) => asm_expand,
@ -142,7 +141,10 @@ register_builtin! {
(include_bytes, IncludeBytes) => include_bytes_expand,
(include_str, IncludeStr) => include_str_expand,
(env, Env) => env_expand,
(option_env, OptionEnv) => option_env_expand
(option_env, OptionEnv) => option_env_expand,
// This isn't really eager, we have no inputs, but we abuse the fact how eager macros are
// handled in r-a to be able to thread the module path through.
(module_path, ModulePath) => module_path_expand
}
fn mk_pound(span: Span) -> tt::Subtree {
@ -157,18 +159,6 @@ fn mk_pound(span: Span) -> tt::Subtree {
)
}
fn module_path_expand(
_db: &dyn ExpandDatabase,
_id: MacroCallId,
_tt: &tt::Subtree,
span: Span,
) -> ExpandResult<tt::Subtree> {
// Just return a dummy result.
ExpandResult::ok(quote! {span =>
"module::path"
})
}
fn line_expand(
_db: &dyn ExpandDatabase,
_id: MacroCallId,
@ -904,6 +894,18 @@ fn option_env_expand(
ExpandResult::ok(expanded)
}
fn module_path_expand(
_db: &dyn ExpandDatabase,
_id: MacroCallId,
tt: &tt::Subtree,
span: Span,
) -> ExpandResult<tt::Subtree> {
// Note: The actual implementation of this is in crates\hir-expand\src\eager.rs
ExpandResult::ok(quote! {span =>
#tt
})
}
fn quote_expand(
_db: &dyn ExpandDatabase,
_arg_id: MacroCallId,

4
crates/hir-expand/src/builtin/quote.rs
View file

@ -128,7 +128,7 @@ macro_rules! quote_impl__ {
}
};
}
pub(super) use quote_impl__ as __quote;
pub(crate) use quote_impl__ as __quote;
/// FIXME:
/// It probably should implement in proc-macro
@ -137,7 +137,7 @@ macro_rules! quote_impl {
$crate::builtin::quote::IntoTt::to_subtree($crate::builtin::quote::__quote!($span $($tt)*), $span)
}
}
pub(super) use quote_impl as quote;
pub(crate) use quote_impl as quote;
pub(crate) trait IntoTt {
fn to_subtree(self, span: Span) -> crate::tt::Subtree;