clippy_utils::source

Trait SpanRangeExt

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pub trait SpanRangeExt: SpanRange {
    // Provided methods
    fn get_source_text(self, cx: &impl HasSession) -> Option<SourceText> { ... }
    fn get_source_range(self, cx: &impl HasSession) -> Option<SourceFileRange> { ... }
    fn with_source_text<T>(
        self,
        cx: &impl HasSession,
        f: impl for<'a> FnOnce(&'a str) -> T,
    ) -> Option<T> { ... }
    fn check_source_text(
        self,
        cx: &impl HasSession,
        pred: impl for<'a> FnOnce(&'a str) -> bool,
    ) -> bool { ... }
    fn with_source_text_and_range<T>(
        self,
        cx: &impl HasSession,
        f: impl for<'a> FnOnce(&'a str, Range<usize>) -> T,
    ) -> Option<T> { ... }
    fn map_range(
        self,
        cx: &impl HasSession,
        f: impl for<'a> FnOnce(&'a str, Range<usize>) -> Option<Range<usize>>,
    ) -> Option<Range<BytePos>> { ... }
    fn with_leading_whitespace(self, cx: &impl HasSession) -> Range<BytePos> { ... }
    fn trim_start(self, cx: &impl HasSession) -> Range<BytePos> { ... }
}

Provided Methods§

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fn get_source_text(self, cx: &impl HasSession) -> Option<SourceText>

Attempts to get a handle to the source text. Returns None if either the span is malformed, or the source text is not accessible.

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fn get_source_range(self, cx: &impl HasSession) -> Option<SourceFileRange>

Gets the source file, and range in the file, of the given span. Returns None if the span extends through multiple files, or is malformed.

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fn with_source_text<T>( self, cx: &impl HasSession, f: impl for<'a> FnOnce(&'a str) -> T, ) -> Option<T>

Calls the given function with the source text referenced and returns the value. Returns None if the source text cannot be retrieved.

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fn check_source_text( self, cx: &impl HasSession, pred: impl for<'a> FnOnce(&'a str) -> bool, ) -> bool

Checks if the referenced source text satisfies the given predicate. Returns false if the source text cannot be retrieved.

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fn with_source_text_and_range<T>( self, cx: &impl HasSession, f: impl for<'a> FnOnce(&'a str, Range<usize>) -> T, ) -> Option<T>

Calls the given function with the both the text of the source file and the referenced range, and returns the value. Returns None if the source text cannot be retrieved.

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fn map_range( self, cx: &impl HasSession, f: impl for<'a> FnOnce(&'a str, Range<usize>) -> Option<Range<usize>>, ) -> Option<Range<BytePos>>

Calls the given function with the both the text of the source file and the referenced range, and creates a new span with the returned range. Returns None if the source text cannot be retrieved, or no result is returned.

The new range must reside within the same source file.

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fn with_leading_whitespace(self, cx: &impl HasSession) -> Range<BytePos>

Extends the range to include all preceding whitespace characters.

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fn trim_start(self, cx: &impl HasSession) -> Range<BytePos>

Trims the leading whitespace from the range.

Object Safety§

This trait is not object safe.

Implementors§