62 lines
1.4 KiB
Rust
62 lines
1.4 KiB
Rust
use crate::ast::*;
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use crate::parser::*;
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use nom::combinator::*;
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use nom::multi::*;
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use nom::sequence::*;
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use nom::IResult;
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// -----------------------------------------------------------------------------
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#[derive(Clone, Debug, Node)]
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pub struct UdpInstantiation {
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pub nodes: (
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UdpIdentifier,
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Option<DriveStrength>,
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Option<Delay2>,
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List<Symbol, UdpInstance>,
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Symbol,
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),
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}
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#[derive(Clone, Debug, Node)]
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pub struct UdpInstance {
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pub nodes: (
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Option<NameOfInstance>,
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Paren<(
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OutputTerminal,
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Symbol,
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InputTerminal,
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Vec<(Symbol, InputTerminal)>,
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)>,
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),
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}
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// -----------------------------------------------------------------------------
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#[parser]
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pub fn udp_instantiation(s: Span) -> IResult<Span, UdpInstantiation> {
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let (s, a) = udp_identifier(s)?;
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let (s, b) = opt(drive_strength)(s)?;
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let (s, c) = opt(delay2)(s)?;
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let (s, d) = list(symbol(","), udp_instance)(s)?;
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let (s, e) = symbol(";")(s)?;
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Ok((
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s,
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UdpInstantiation {
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nodes: (a, b, c, d, e),
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},
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))
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}
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#[parser]
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pub fn udp_instance(s: Span) -> IResult<Span, UdpInstance> {
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let (s, a) = opt(name_of_instance)(s)?;
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let (s, b) = paren(tuple((
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output_terminal,
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symbol(","),
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input_terminal,
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many0(pair(symbol(","), input_terminal)),
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)))(s)?;
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Ok((s, UdpInstance { nodes: (a, b) }))
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}
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