Enum PreprocessorWarning 

pub enum PreprocessorWarning<'a> {
    NotPreviouslyDefinedMacro((&'a str, Span<'a>)),
    RedefinedMacro((&'a str, Span<'a>, Span<'a>)),
}

A warning encountered during preprocessing

Warnings reflect an irregularity in the source code, but are still well-defined and allow preprocessing to continue

Variants

NotPreviouslyDefinedMacro((&'a str, Span<'a>))

Attempted to `undef a macro that had no previous definition

let source = "
`undef TEST
";
let input = lex(source, "test.v").tokens();
let preprocess_result = preprocess(
    &mut TokenIterator::new(input.into_iter()),
    &mut state,
    &cache,
);
assert!(matches!(preprocess_result, Ok(_)));
assert!(matches!(state.warnings.first(), Some(PreprocessorWarning::NotPreviouslyDefinedMacro(_))))

RedefinedMacro((&'a str, Span<'a>, Span<'a>))

A redefinition of a text macro that was previously defined

let source = "
`define TEST definition_one
`define TEST definition_two
";
let input = lex(source, "test.v").tokens();
let preprocess_result = preprocess(
    &mut TokenIterator::new(input.into_iter()),
    &mut state,
    &cache,
);
assert!(matches!(preprocess_result, Ok(_)));
assert!(matches!(state.warnings.first(), Some(PreprocessorWarning::RedefinedMacro(_))))

Trait Implementations

impl<'a> Clone for PreprocessorWarning<'a>

fn clone(&self) -> PreprocessorWarning<'a>

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<'a> Debug for PreprocessorWarning<'a>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'s> From<&PreprocessorWarning<'s>> for Report<'s, (String, Range<usize>)>

fn from(s: &PreprocessorWarning<'s>) -> Self

Converts to this type from the input type.

impl<'a> PartialEq for PreprocessorWarning<'a>

fn eq(&self, other: &PreprocessorWarning<'a>) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<'a> StructuralPartialEq for PreprocessorWarning<'a>