ptx_parser/parser/instruction/
alloca.rs

1//! Original PTX specification:
2//!
3//! alloca.type  ptr, size{, immAlign};
4//! .type = { .u32, .u64 };
5
6#![allow(unused)]
7
8use crate::lexer::PtxToken;
9use crate::parser::{PtxParseError, PtxParser, PtxTokenStream, Span};
10use crate::r#type::common::*;
11
12pub mod section_0 {
13    use super::*;
14    use crate::r#type::instruction::alloca::section_0::*;
15
16    // ============================================================================
17    // Generated enum parsers
18    // ============================================================================
19
20    impl PtxParser for Type {
21        fn parse(stream: &mut PtxTokenStream) -> Result<Self, PtxParseError> {
22            // Try U32
23            {
24                let saved_pos = stream.position();
25                if stream.expect_string(".u32").is_ok() {
26                    return Ok(Type::U32);
27                }
28                stream.set_position(saved_pos);
29            }
30            let saved_pos = stream.position();
31            // Try U64
32            {
33                let saved_pos = stream.position();
34                if stream.expect_string(".u64").is_ok() {
35                    return Ok(Type::U64);
36                }
37                stream.set_position(saved_pos);
38            }
39            stream.set_position(saved_pos);
40            let span = stream
41                .peek()
42                .map(|(_, s)| s.clone())
43                .unwrap_or(Span { start: 0, end: 0 });
44            let expected = &[".u32", ".u64"];
45            let found = stream
46                .peek()
47                .map(|(t, _)| format!("{:?}", t))
48                .unwrap_or_else(|_| "<end of input>".to_string());
49            Err(crate::parser::unexpected_value(span, expected, found))
50        }
51    }
52
53    impl PtxParser for AllocaType {
54        fn parse(stream: &mut PtxTokenStream) -> Result<Self, PtxParseError> {
55            stream.expect_string("alloca")?;
56            let type_ = Type::parse(stream)?;
57            stream.expect_complete()?;
58            let ptr = GeneralOperand::parse(stream)?;
59            stream.expect_complete()?;
60            stream.expect(&PtxToken::Comma)?;
61            let size = GeneralOperand::parse(stream)?;
62            stream.expect_complete()?;
63            let saved_pos = stream.position();
64            let has_comma = stream.expect(&PtxToken::Comma).is_ok();
65            if !has_comma {
66                stream.set_position(saved_pos);
67            }
68            let saved_pos = stream.position();
69            let immalign = match GeneralOperand::parse(stream) {
70                Ok(val) => Some(val),
71                Err(_) => {
72                    stream.set_position(saved_pos);
73                    None
74                }
75            };
76            stream.expect_complete()?;
77            stream.expect_complete()?;
78            stream.expect(&PtxToken::Semicolon)?;
79            Ok(AllocaType {
80                type_,
81                ptr,
82                size,
83                immalign,
84            })
85        }
86    }
87}
ptx_parser/parser/instruction/alloca.rs

ptx_parser/parser/instruction/
alloca.rs
