ptx-90-parser 0.2.2

Parse NVIDIA PTX 9.0 assembly into a structured AST and explore modules via a CLI.
Documentation 
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//! Original PTX specification:
//!
//! tanh.approx.type d, a;
//! .type = {.f16, .f32, .f16x2, .bf16, .bf16x2};

#![allow(unused)]

use crate::lexer::PtxToken;
use crate::parser::{PtxParseError, PtxParser, PtxTokenStream, Span};
use crate::r#type::common::*;

pub mod section_0 {
    use super::*;
    use crate::r#type::instruction::tanh::section_0::*;

    // ============================================================================
    // Generated enum parsers
    // ============================================================================

    impl PtxParser for Type {
        fn parse(stream: &mut PtxTokenStream) -> Result<Self, PtxParseError> {
            // Try Bf16x2
            {
                let saved_pos = stream.position();
                if stream.expect_string(".bf16x2").is_ok() {
                    return Ok(Type::Bf16x2);
                }
                stream.set_position(saved_pos);
            }
            let saved_pos = stream.position();
            // Try F16x2
            {
                let saved_pos = stream.position();
                if stream.expect_string(".f16x2").is_ok() {
                    return Ok(Type::F16x2);
                }
                stream.set_position(saved_pos);
            }
            stream.set_position(saved_pos);
            let saved_pos = stream.position();
            // Try Bf16
            {
                let saved_pos = stream.position();
                if stream.expect_string(".bf16").is_ok() {
                    return Ok(Type::Bf16);
                }
                stream.set_position(saved_pos);
            }
            stream.set_position(saved_pos);
            let saved_pos = stream.position();
            // Try F16
            {
                let saved_pos = stream.position();
                if stream.expect_string(".f16").is_ok() {
                    return Ok(Type::F16);
                }
                stream.set_position(saved_pos);
            }
            stream.set_position(saved_pos);
            let saved_pos = stream.position();
            // Try F32
            {
                let saved_pos = stream.position();
                if stream.expect_string(".f32").is_ok() {
                    return Ok(Type::F32);
                }
                stream.set_position(saved_pos);
            }
            stream.set_position(saved_pos);
            let span = stream
                .peek()
                .map(|(_, s)| s.clone())
                .unwrap_or(Span { start: 0, end: 0 });
            let expected = &[".bf16x2", ".f16x2", ".bf16", ".f16", ".f32"];
            let found = stream
                .peek()
                .map(|(t, _)| format!("{:?}", t))
                .unwrap_or_else(|_| "<end of input>".to_string());
            Err(crate::parser::unexpected_value(span, expected, found))
        }
    }

    impl PtxParser for TanhApproxType {
        fn parse(stream: &mut PtxTokenStream) -> Result<Self, PtxParseError> {
            stream.expect_string("tanh")?;
            stream.expect_string(".approx")?;
            let approx = ();
            stream.expect_complete()?;
            let type_ = Type::parse(stream)?;
            stream.expect_complete()?;
            let d = GeneralOperand::parse(stream)?;
            stream.expect_complete()?;
            stream.expect(&PtxToken::Comma)?;
            let a = GeneralOperand::parse(stream)?;
            stream.expect_complete()?;
            stream.expect_complete()?;
            stream.expect(&PtxToken::Semicolon)?;
            Ok(TanhApproxType {
                approx,
                type_,
                d,
                a,
            })
        }
    }
}