1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169

pub mod attributes;
pub mod global_variable;
pub mod linkage;
pub mod metadata;
pub mod name;
pub mod parser;
pub mod preemption_specifier;
pub mod unnamed_addr;
pub mod visibility;

pub use parser::parse as parse_assembly;

use super::{
    function::{Function, FunctionId, Parameter},
    types::{Type, Types},
};
use attributes::Attribute;
use global_variable::GlobalVariable;
use id_arena::{Arena, Id};
use metadata::Metadata;
use name::Name;
use rustc_hash::FxHashMap;
use std::fmt;

#[derive(Debug, Clone)]
pub struct Target {
    triple: String,
    datalayout: String,
}

pub struct Module {
    pub(crate) name: String,
    pub(crate) source_filename: String,
    pub(crate) target: Target,
    pub(crate) functions: Arena<Function>,
    pub(crate) attributes: FxHashMap<u32, Vec<Attribute>>,
    pub(crate) global_variables: FxHashMap<Name, GlobalVariable>,
    pub types: Types,
    pub metas: FxHashMap<Name, Metadata>,
}

impl Default for Module {
    fn default() -> Self {
        Self {
            name: "".to_string(),
            source_filename: "".to_string(),
            target: Target::new(),
            functions: Arena::new(),
            attributes: FxHashMap::default(),
            global_variables: FxHashMap::default(),
            types: Types::new(),
            metas: FxHashMap::default(),
        }
    }
}

impl Module {
    pub fn new() -> Self {
        Self::default()
    }

    pub fn name(&self) -> &String {
        &self.name
    }

    pub fn source_filename(&self) -> &String {
        &self.source_filename
    }

    pub fn target(&self) -> &Target {
        &self.target
    }

    pub fn functions(&self) -> &Arena<Function> {
        &self.functions
    }

    pub fn functions_mut(&mut self) -> &mut Arena<Function> {
        &mut self.functions
    }

    pub fn attributes(&self) -> &FxHashMap<u32, Vec<Attribute>> {
        &self.attributes
    }

    pub fn global_variables(&self) -> &FxHashMap<Name, GlobalVariable> {
        &self.global_variables
    }

    pub fn add_function(&mut self, f: Function) -> Id<Function> {
        self.functions.alloc(f)
    }

    pub fn create_function<T: AsRef<str>>(
        &mut self,
        name: T,
        result_ty: Type,
        params: Vec<Parameter>,
        is_var_arg: bool,
    ) -> Id<Function> {
        self.functions.alloc(Function::new(
            name,
            result_ty,
            params,
            is_var_arg,
            self.types.clone(),
        ))
    }

    pub fn find_function_by_name<T: AsRef<str>>(&self, name: T) -> Option<FunctionId> {
        for (id, func) in &self.functions {
            if func.name() == name.as_ref() {
                return Some(id);
            }
        }
        None
    }
}

impl Default for Target {
    fn default() -> Self {
        Self {
            triple: "".to_string(),
            datalayout: "".to_string(),
        }
    }
}

impl Target {
    pub fn new() -> Self {
        Self::default()
    }

    pub fn triple(&self) -> &str {
        self.triple.as_str()
    }

    pub fn datalayout(&self) -> &str {
        self.datalayout.as_str()
    }
}

impl fmt::Debug for Module {
    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
        writeln!(f, "source_filename = \"{}\"", self.source_filename)?;
        writeln!(f, "target datalayout = \"{}\"", self.target.datalayout)?;
        writeln!(f, "target triple = \"{}\"", self.target.triple)?;
        writeln!(f)?;
        write!(f, "{:?}", self.types)?;
        for gv in self.global_variables.values() {
            writeln!(f, "{}", gv.to_string(&self.types))?;
        }
        writeln!(f)?;
        for (_, func) in &self.functions {
            writeln!(f, "{:?}", func)?;
        }
        for (id, attrs) in &self.attributes {
            write!(f, "attributes #{} = {{ ", id)?;
            for attr in attrs {
                write!(f, "{:?} ", attr)?;
            }
            writeln!(f, "}}")?
        }
        for (n, meta) in &self.metas {
            writeln!(f, "!{} = {:?}", n, meta)?;
        }
        Ok(())
    }
}