aa506fa5bd
Modify the lexer to keep track of opening `({[` and closing `]})` delimiters.
When the lexer would emit an eol or indent outside of a recipe when there
is at least one open delimiter, emit a whitespace token instead.
This allows expressions to be split on multiple lines, like so:
x := if 'a' == 'b' {
'x'
} else {
'y'
}
This does not work inside of recipe body interpolations, although this
restriction might relaxed in the future.
25 lines
414 B
Rust
25 lines
414 B
Rust
#[derive(PartialEq, Eq, Debug, Copy, Clone)]
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pub(crate) enum Delimiter {
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Brace,
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Bracket,
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Paren,
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}
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impl Delimiter {
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pub(crate) fn open(self) -> char {
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match self {
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Self::Brace => '{',
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Self::Bracket => '[',
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Self::Paren => '(',
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}
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}
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pub(crate) fn close(self) -> char {
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match self {
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Self::Brace => '}',
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Self::Bracket => ']',
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Self::Paren => ')',
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}
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}
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}
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