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Split test module for metavariable expressions

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This commit is contained in:
Ryo Yoshida 2023-05-23 17:55:40 +09:00
parent f6e3a87bf9
commit 9ebaa85d37
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GPG Key ID: E25698A930586171
2 changed files with 92 additions and 86 deletions
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87
crates/hir-def/src/macro_expansion_tests/mbe.rs
View File

@ -4,6 +4,7 @@
mod tt_conversion;
mod matching;
mod meta_syntax;
mod metavar_expr;
mod regression;
use expect_test::expect;
@ -1614,92 +1615,6 @@ macro_rules! error {
)
}
#[test]
fn test_dollar_dollar() {
check(
r#"
macro_rules! register_struct { ($Struct:ident) => {
macro_rules! register_methods { ($$($method:ident),*) => {
macro_rules! implement_methods { ($$$$($$val:expr),*) => {
struct $Struct;
impl $Struct { $$(fn $method() -> &'static [u32] { &[$$$$($$$$val),*] })*}
}}
}}
}}
register_struct!(Foo);
register_methods!(alpha, beta);
implement_methods!(1, 2, 3);
"#,
expect![[r#"
macro_rules! register_struct { ($Struct:ident) => {
macro_rules! register_methods { ($$($method:ident),*) => {
macro_rules! implement_methods { ($$$$($$val:expr),*) => {
struct $Struct;
impl $Struct { $$(fn $method() -> &'static [u32] { &[$$$$($$$$val),*] })*}
}}
}}
}}
macro_rules !register_methods {
($($method: ident), *) = > {
macro_rules!implement_methods {
($$($val: expr), *) = > {
struct Foo;
impl Foo {
$(fn $method()-> &'static[u32] {
&[$$($$val), *]
}
)*
}
}
}
}
}
macro_rules !implement_methods {
($($val: expr), *) = > {
struct Foo;
impl Foo {
fn alpha()-> &'static[u32] {
&[$($val), *]
}
fn beta()-> &'static[u32] {
&[$($val), *]
}
}
}
}
struct Foo;
impl Foo {
fn alpha() -> &'static[u32] {
&[1, 2, 3]
}
fn beta() -> &'static[u32] {
&[1, 2, 3]
}
}
"#]],
)
}
#[test]
fn test_metavar_exprs() {
check(
r#"
macro_rules! m {
( $( $t:tt )* ) => ( $( ${ignore(t)} -${index()} )-* );
}
const _: i32 = m!(a b c);
"#,
expect![[r#"
macro_rules! m {
( $( $t:tt )* ) => ( $( ${ignore(t)} -${index()} )-* );
}
const _: i32 = -0--1--2;
"#]],
);
}
#[test]
fn test_punct_without_space() {
// Puncts are "glued" greedily.

91
crates/hir-def/src/macro_expansion_tests/mbe/metavar_expr.rs Normal file
View File

@ -0,0 +1,91 @@
//! Tests for RFC 3086 metavariable expressions.
use expect_test::expect;
use crate::macro_expansion_tests::check;
#[test]
fn test_dollar_dollar() {
check(
r#"
macro_rules! register_struct { ($Struct:ident) => {
macro_rules! register_methods { ($$($method:ident),*) => {
macro_rules! implement_methods { ($$$$($$val:expr),*) => {
struct $Struct;
impl $Struct { $$(fn $method() -> &'static [u32] { &[$$$$($$$$val),*] })*}
}}
}}
}}
register_struct!(Foo);
register_methods!(alpha, beta);
implement_methods!(1, 2, 3);
"#,
expect![[r#"
macro_rules! register_struct { ($Struct:ident) => {
macro_rules! register_methods { ($$($method:ident),*) => {
macro_rules! implement_methods { ($$$$($$val:expr),*) => {
struct $Struct;
impl $Struct { $$(fn $method() -> &'static [u32] { &[$$$$($$$$val),*] })*}
}}
}}
}}
macro_rules !register_methods {
($($method: ident), *) = > {
macro_rules!implement_methods {
($$($val: expr), *) = > {
struct Foo;
impl Foo {
$(fn $method()-> &'static[u32] {
&[$$($$val), *]
}
)*
}
}
}
}
}
macro_rules !implement_methods {
($($val: expr), *) = > {
struct Foo;
impl Foo {
fn alpha()-> &'static[u32] {
&[$($val), *]
}
fn beta()-> &'static[u32] {
&[$($val), *]
}
}
}
}
struct Foo;
impl Foo {
fn alpha() -> &'static[u32] {
&[1, 2, 3]
}
fn beta() -> &'static[u32] {
&[1, 2, 3]
}
}
"#]],
)
}
#[test]
fn test_metavar_exprs() {
check(
r#"
macro_rules! m {
( $( $t:tt )* ) => ( $( ${ignore(t)} -${index()} )-* );
}
const _: i32 = m!(a b c);
"#,
expect![[r#"
macro_rules! m {
( $( $t:tt )* ) => ( $( ${ignore(t)} -${index()} )-* );
}
const _: i32 = -0--1--2;
"#]],
);
}