c599761140
This function is now used to check `#[panic_handler]`, `start` lang item, `main`, `#[start]` and intrinsic functions. The diagnosis produced are now closer to the ones produced by trait/impl method signature mismatch.
102 lines
2.8 KiB
Rust
102 lines
2.8 KiB
Rust
// check-fail
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// revisions: missing_all_args missing_sigpipe_arg missing_ret start_ret too_many_args
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// revisions: main_ty main_args main_ret argc argv_inner_ptr argv sigpipe
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#![feature(lang_items, no_core)]
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#![no_core]
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#[lang = "copy"]
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pub trait Copy {}
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#[lang = "sized"]
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pub trait Sized {}
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#[cfg(missing_all_args)]
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#[lang = "start"]
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fn start<T>() -> isize {
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//[missing_all_args]~^ ERROR lang item `start` function has wrong type [E0308]
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100
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}
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#[cfg(missing_sigpipe_arg)]
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#[lang = "start"]
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fn start<T>(_main: fn() -> T, _argc: isize, _argv: *const *const u8) -> isize {
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//[missing_sigpipe_arg]~^ ERROR lang item `start` function has wrong type [E0308]
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100
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}
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#[cfg(missing_ret)]
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#[lang = "start"]
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fn start<T>(_main: fn() -> T, _argc: isize, _argv: *const *const u8, _sigpipe: u8) {}
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//[missing_ret]~^ ERROR lang item `start` function has wrong type [E0308]
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#[cfg(start_ret)]
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#[lang = "start"]
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fn start<T>(_main: fn() -> T, _argc: isize, _argv: *const *const u8, _sigpipe: u8) -> u8 {
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//[start_ret]~^ ERROR lang item `start` function has wrong type [E0308]
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100
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}
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#[cfg(too_many_args)]
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#[lang = "start"]
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fn start<T>(
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//[too_many_args]~^ ERROR lang item `start` function has wrong type [E0308]
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_main: fn() -> T,
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_argc: isize,
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_argv: *const *const u8,
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_sigpipe: u8,
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_extra_arg: (),
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) -> isize {
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100
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}
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#[cfg(main_ty)]
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#[lang = "start"]
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fn start<T>(_main: u64, _argc: isize, _argv: *const *const u8, _sigpipe: u8) -> isize {
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//[main_ty]~^ ERROR lang item `start` function has wrong type [E0308]
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100
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}
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#[cfg(main_args)]
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#[lang = "start"]
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fn start<T>(_main: fn(i32) -> T, _argc: isize, _argv: *const *const u8, _sigpipe: u8) -> isize {
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//[main_args]~^ ERROR lang item `start` function has wrong type [E0308]
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100
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}
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#[cfg(main_ret)]
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#[lang = "start"]
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fn start<T>(_main: fn() -> u16, _argc: isize, _argv: *const *const u8, _sigpipe: u8) -> isize {
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//[main_ret]~^ ERROR lang item `start` function has wrong type [E0308]
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100
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}
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#[cfg(argc)]
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#[lang = "start"]
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fn start<T>(_main: fn() -> T, _argc: i8, _argv: *const *const u8, _sigpipe: u8) -> isize {
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//[argc]~^ ERROR lang item `start` function has wrong type [E0308]
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100
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}
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#[cfg(argv_inner_ptr)]
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#[lang = "start"]
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fn start<T>(_main: fn() -> T, _argc: isize, _argv: *const *const usize, _sigpipe: u8) -> isize {
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//[argv_inner_ptr]~^ ERROR lang item `start` function has wrong type [E0308]
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100
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}
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#[cfg(argv)]
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#[lang = "start"]
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fn start<T>(_main: fn() -> T, _argc: isize, _argv: u8, _sigpipe: u8) -> isize {
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//[argv]~^ ERROR lang item `start` function has wrong type [E0308]
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100
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}
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#[cfg(sigpipe)]
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#[lang = "start"]
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fn start<T>(_main: fn() -> T, _argc: isize, _argv: *const *const u8, _sigpipe: i64) -> isize {
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//[sigpipe]~^ ERROR lang item `start` function has wrong type [E0308]
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100
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}
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fn main() {}
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