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Diffstat (limited to 'compiler/rustc_error_codes/src/error_codes/E0518.md')
| -rw-r--r-- | compiler/rustc_error_codes/src/error_codes/E0518.md | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/compiler/rustc_error_codes/src/error_codes/E0518.md b/compiler/rustc_error_codes/src/error_codes/E0518.md new file mode 100644 index 000000000..f04329bc4 --- /dev/null +++ b/compiler/rustc_error_codes/src/error_codes/E0518.md @@ -0,0 +1,23 @@ +An `#[inline(..)]` attribute was incorrectly placed on something other than a +function or method. + +Example of erroneous code: + +```compile_fail,E0518 +#[inline(always)] +struct Foo; + +#[inline(never)] +impl Foo { + // ... +} +``` + +`#[inline]` hints the compiler whether or not to attempt to inline a method or +function. By default, the compiler does a pretty good job of figuring this out +itself, but if you feel the need for annotations, `#[inline(always)]` and +`#[inline(never)]` can override or force the compiler's decision. + +If you wish to apply this attribute to all methods in an impl, manually annotate +each method; it is not possible to annotate the entire impl with an `#[inline]` +attribute. |