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block template

This commit is contained in:
Greg Shuflin 2021-11-18 19:12:28 -08:00
parent d5cd0dada7
commit 6454cc5ad1
1 changed files with 19 additions and 42 deletions
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61
schala-lang/src/parsing/combinator.rs
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@ -95,28 +95,28 @@ pub fn program(input: Span) -> ParseResult<AST> {
),
)(input)?;
println!("REST: {}", rest.fragment());
let ast = AST { id, statements };
Ok((rest, ast))
}
pub fn block(input: Span) -> ParseResult<Block> {
context(
"block",
map(
delimited(
tok(char('{')),
tuple((
many0(statement_delimiter),
separated_list0(statement_delimiter, statement),
many0(statement_delimiter),
)),
tok(char('}')),
),
|(_, items, _)| items.into(),
fn block_template<'a, O>(input_parser: impl Parser<Span<'a>, O, VerboseError<Span<'a>>>) -> impl FnMut(Span<'a>) ->
IResult<Span<'a>, Vec<O>, VerboseError<Span<'a>>> {
map(
delimited(
tok(char('{')),
tuple((
many0(statement_delimiter),
separated_list0(statement_delimiter, input_parser),
many0(statement_delimiter),
)),
tok(char('}')),
),
)(input)
|(_, items, _)| items,
)
}
pub fn block(input: Span) -> ParseResult<Block> {
map(block_template(statement), |items| items.into())(input)
}
fn statement(input: Span) -> ParseResult<Statement> {
@ -151,18 +151,7 @@ fn implementation(input: Span) -> ParseResult<Declaration> {
}
fn decl_block(input: Span) -> ParseResult<Vec<Declaration>> {
delimited(
tok(char('{')),
map(
tuple((
many0(statement_delimiter),
separated_list0(statement_delimiter, func_decl),
many0(statement_delimiter),
)),
|(_, signatures, _)| signatures,
),
tok(char('}')),
)(input)
block_template(func_decl)(input)
}
fn interface(input: Span) -> ParseResult<Declaration> {
@ -171,20 +160,8 @@ fn interface(input: Span) -> ParseResult<Declaration> {
})(input)
}
//TODO make the blocks parameterizable
fn signature_block(input: Span) -> ParseResult<Vec<Signature>> {
delimited(
tok(char('{')),
map(
tuple((
many0(statement_delimiter),
separated_list0(statement_delimiter, func_signature),
many0(statement_delimiter),
)),
|(_, signatures, _)| signatures,
),
tok(char('}')),
)(input)
block_template(func_signature)(input)
}
fn annotation(input: Span) -> ParseResult<Declaration> {