litex/parse/
parse_param_def.rs

1use crate::prelude::*;
2
3impl Runtime {
4    /// Each parameter name is pushed to [`Runtime::parsing_free_param_collection`] with `free_param_kind`
5    /// before its shared type is parsed, so later parameter types in the same group (or later groups)
6    /// can resolve earlier parameters. Use [`ParamObjType::DefHeader`] for `prop { ... }` and `family`
7    /// headers, [`ParamObjType::Forall`] for `forall`, [`ParamObjType::Exist`] for `exist`, [`ParamObjType::Identifier`] for `let` / `have`, etc.
8    pub fn parse_param_def_with_param_type_and_skip_comma(
9        &mut self,
10        tb: &mut TokenBlock,
11        free_param_kind: ParamObjType,
12    ) -> Result<ParamGroupWithParamType, RuntimeError> {
13        let param = tb.advance()?;
14        let owned = param.clone();
15        self.parsing_free_param_collection.begin_scope(
16            free_param_kind,
17            std::slice::from_ref(&owned),
18            tb.line_file.clone(),
19        )?;
20        let param_def_with_param_type = if tb.current()? != COMMA {
21            ParamGroupWithParamType::new(vec![param], self.parse_param_type(tb)?)
22        } else {
23            let mut vec_of_params = vec![param];
24
25            while tb.current_token_is_equal_to(COMMA) {
26                tb.skip()?;
27                let p = tb.advance()?;
28                let owned = p.clone();
29                self.parsing_free_param_collection.begin_scope(
30                    free_param_kind,
31                    std::slice::from_ref(&owned),
32                    tb.line_file.clone(),
33                )?;
34                vec_of_params.push(p);
35            }
36            let param_type = self.parse_param_type(tb)?;
37
38            ParamGroupWithParamType::new(vec_of_params, param_type)
39        };
40        if tb.current_token_is_equal_to(COMMA) {
41            tb.skip_token(COMMA)?;
42        }
43        Ok(param_def_with_param_type)
44    }
45
46    pub fn parse_param_type(&mut self, tb: &mut TokenBlock) -> Result<ParamType, RuntimeError> {
47        match tb.current()? {
48            NONEMPTY_SET => self.parse_param_type_nonempty_set(tb),
49            FINITE_SET => self.parse_param_type_finite_set(tb),
50            SET => self.parse_param_type_set(tb),
51            s if s == FAMILY_OBJ_PREFIX => self
52                .parse_family_obj(tb)
53                .map(|f| ParamType::Obj(Obj::FamilyObj(f))),
54            _ => self.parse_param_type_obj(tb),
55        }
56    }
57
58    pub fn parse_param_type_nonempty_set(
59        &self,
60        tb: &mut TokenBlock,
61    ) -> Result<ParamType, RuntimeError> {
62        tb.skip_token(NONEMPTY_SET)?;
63        Ok(ParamType::NonemptySet(NonemptySet::new()))
64    }
65
66    pub fn parse_param_type_finite_set(
67        &self,
68        tb: &mut TokenBlock,
69    ) -> Result<ParamType, RuntimeError> {
70        tb.skip_token(FINITE_SET)?;
71        Ok(ParamType::FiniteSet(FiniteSet::new()))
72    }
73
74    pub fn parse_param_type_set(&self, tb: &mut TokenBlock) -> Result<ParamType, RuntimeError> {
75        tb.skip_token(SET)?;
76        Ok(ParamType::Set(Set::new()))
77    }
78
79    pub fn parse_param_type_obj(&mut self, tb: &mut TokenBlock) -> Result<ParamType, RuntimeError> {
80        let obj = self.parse_obj(tb)?;
81        Ok(ParamType::Obj(obj))
82    }
83}
litex/parse/parse_param_def.rs

litex/parse/
parse_param_def.rs
