diff options
Diffstat (limited to '')
| -rw-r--r-- | dhall_syntax/src/parser.rs | 2 | ||||
| -rw-r--r-- | pest_consume/examples/csv/main.rs | 2 | ||||
| -rw-r--r-- | pest_consume/src/lib.rs | 2 | ||||
| -rw-r--r-- | pest_consume_macros/src/make_parser.rs | 31 |
4 files changed, 31 insertions, 6 deletions
diff --git a/dhall_syntax/src/parser.rs b/dhall_syntax/src/parser.rs index 8f6f423..2af2d92 100644 --- a/dhall_syntax/src/parser.rs +++ b/dhall_syntax/src/parser.rs @@ -149,7 +149,7 @@ lazy_static::lazy_static! { struct DhallParser; -#[pest_consume::parser(dgp::DhallParser, dgp::Rule)] +#[pest_consume::parser(parser = dgp::DhallParser, rule = dgp::Rule)] impl DhallParser { fn EOI(_input: ParseInput) -> ParseResult<()> { Ok(()) diff --git a/pest_consume/examples/csv/main.rs b/pest_consume/examples/csv/main.rs index a045eb4..88621db 100644 --- a/pest_consume/examples/csv/main.rs +++ b/pest_consume/examples/csv/main.rs @@ -15,7 +15,7 @@ type Node<'i> = pest_consume::Node<'i, Rule, ()>; #[grammar = "../examples/csv/csv.pest"] struct CSVParser; -#[pest_consume::parser(CSVParser, Rule)] +#[pest_consume::parser] impl CSVParser { fn EOI(_input: Node) -> Result<()> { Ok(()) diff --git a/pest_consume/src/lib.rs b/pest_consume/src/lib.rs index a161d3f..c1d62e5 100644 --- a/pest_consume/src/lib.rs +++ b/pest_consume/src/lib.rs @@ -32,7 +32,7 @@ //! struct CSVParser; //! //! // This is the other half of the parser, using pest_consume. -//! #[pest_consume::parser(CSVParser, Rule)] +//! #[pest_consume::parser] //! impl CSVParser { //! fn EOI(_input: Node) -> Result<()> { //! Ok(()) diff --git a/pest_consume_macros/src/make_parser.rs b/pest_consume_macros/src/make_parser.rs index c30b12f..5bf8fe3 100644 --- a/pest_consume_macros/src/make_parser.rs +++ b/pest_consume_macros/src/make_parser.rs @@ -37,6 +37,8 @@ impl<Item> VecPartitionFilterExt<Item> for Vec<Item> { mod kw { syn::custom_keyword!(shortcut); + syn::custom_keyword!(rule); + syn::custom_keyword!(parser); } struct MakeParserAttrs { @@ -72,9 +74,32 @@ struct ParsedFn<'a> { impl Parse for MakeParserAttrs { fn parse(input: ParseStream) -> Result<Self> { - let parser = input.parse()?; - let _: Token![,] = input.parse()?; - let rule_enum = input.parse()?; + // By default, the pest parser is the same type as the pest_consume one + let mut parser = parse_quote!(Self); + // By default, use the `Rule` type in scope + let mut rule_enum = parse_quote!(Rule); + + while !input.is_empty() { + let lookahead = input.lookahead1(); + if lookahead.peek(kw::parser) { + let _: kw::parser = input.parse()?; + let _: Token![=] = input.parse()?; + parser = input.parse()?; + } else if lookahead.peek(kw::rule) { + let _: kw::rule = input.parse()?; + let _: Token![=] = input.parse()?; + rule_enum = input.parse()?; + } else { + return Err(lookahead.error()); + } + + if input.peek(Token![,]) { + let _: Token![,] = input.parse()?; + } else { + break; + } + } + Ok(MakeParserAttrs { parser, rule_enum }) } } |