naga/front/glsl/
token.rs

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1pub use pp_rs::token::{Float, Integer, Location, Token as PPToken};
2
3use alloc::{string::String, vec::Vec};
4
5use super::ast::Precision;
6use crate::{Interpolation, Sampling, Span, Type};
7
8impl From<Location> for Span {
9    fn from(loc: Location) -> Self {
10        Span::new(loc.start, loc.end)
11    }
12}
13
14#[derive(Debug)]
15#[cfg_attr(test, derive(PartialEq))]
16pub struct Token {
17    pub value: TokenValue,
18    pub meta: Span,
19}
20
21/// A token passed from the lexing used in the parsing.
22///
23/// This type is exported since it's returned in the
24/// [`InvalidToken`](super::ErrorKind::InvalidToken) error.
25#[derive(Clone, Debug, PartialEq)]
26pub enum TokenValue {
27    Identifier(String),
28
29    FloatConstant(Float),
30    IntConstant(Integer),
31    BoolConstant(bool),
32
33    Layout,
34    In,
35    Out,
36    InOut,
37    Uniform,
38    Buffer,
39    Const,
40    Shared,
41
42    Restrict,
43    /// A `glsl` memory qualifier such as `writeonly`
44    ///
45    /// The associated [`crate::StorageAccess`] is the access being allowed
46    /// (for example `writeonly` has an associated value of [`crate::StorageAccess::STORE`])
47    MemoryQualifier(crate::StorageAccess),
48
49    Invariant,
50    Interpolation(Interpolation),
51    Sampling(Sampling),
52    Precision,
53    PrecisionQualifier(Precision),
54
55    Continue,
56    Break,
57    Return,
58    Discard,
59
60    If,
61    Else,
62    Switch,
63    Case,
64    Default,
65    While,
66    Do,
67    For,
68
69    Void,
70    Struct,
71    TypeName(Type),
72
73    Assign,
74    AddAssign,
75    SubAssign,
76    MulAssign,
77    DivAssign,
78    ModAssign,
79    LeftShiftAssign,
80    RightShiftAssign,
81    AndAssign,
82    XorAssign,
83    OrAssign,
84
85    Increment,
86    Decrement,
87
88    LogicalOr,
89    LogicalAnd,
90    LogicalXor,
91
92    LessEqual,
93    GreaterEqual,
94    Equal,
95    NotEqual,
96
97    LeftShift,
98    RightShift,
99
100    LeftBrace,
101    RightBrace,
102    LeftParen,
103    RightParen,
104    LeftBracket,
105    RightBracket,
106    LeftAngle,
107    RightAngle,
108
109    Comma,
110    Semicolon,
111    Colon,
112    Dot,
113    Bang,
114    Dash,
115    Tilde,
116    Plus,
117    Star,
118    Slash,
119    Percent,
120    VerticalBar,
121    Caret,
122    Ampersand,
123    Question,
124}
125
126#[derive(Debug)]
127#[cfg_attr(test, derive(PartialEq))]
128pub struct Directive {
129    pub kind: DirectiveKind,
130    pub tokens: Vec<PPToken>,
131}
132
133#[derive(Debug)]
134#[cfg_attr(test, derive(PartialEq))]
135pub enum DirectiveKind {
136    Version { is_first_directive: bool },
137    Extension,
138    Pragma,
139}
naga/front/glsl/token.rs

naga/front/glsl/
token.rs
