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Diffstat (limited to 'crates/rebel-parse/src/ast.rs')
| -rw-r--r-- | crates/rebel-parse/src/ast.rs | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/crates/rebel-parse/src/ast.rs b/crates/rebel-parse/src/ast.rs index f9943d4..648a79e 100644 --- a/crates/rebel-parse/src/ast.rs +++ b/crates/rebel-parse/src/ast.rs @@ -1,3 +1,5 @@ +use crate::token; + pub type Recipe<'a> = Vec<RecipeStmt<'a>>; #[derive(Debug, Clone, PartialEq, Eq)] @@ -165,6 +167,22 @@ pub enum StringPiece<'a> { Interp(Expr<'a>), } +impl<'a> TryFrom<&token::StringPiece<'a>> for StringPiece<'a> { + type Error = &'static str; + + fn try_from(value: &token::StringPiece<'a>) -> Result<Self, Self::Error> { + use crate::recipe; + + Ok(match value { + token::StringPiece::Chars(chars) => StringPiece::Chars(chars), + token::StringPiece::Escape(c) => StringPiece::Escape(*c), + token::StringPiece::Interp(tokens) => StringPiece::Interp( + recipe::expr(tokens).or(Err("Invalid expression in string interpolation"))?, + ), + }) + } +} + #[derive(Debug, Clone, PartialEq, Eq)] pub struct MapEntry<'a> { pub key: &'a str, |