kaiju_compiler_core/
lib.rs

1extern crate kaiju_core as core;
2
3pub mod module_reader;
4
5use crate::core::error::*;
6use crate::core::program::*;
7use crate::core::validator::*;
8use crate::module_reader::*;
9use std::collections::HashMap;
10
11pub fn compile_program<V, R>(
12    entry_path: &str,
13    mut module_reader: R,
14    ops_descriptor: &OpsDescriptor,
15) -> SimpleResult<Program>
16where
17    V: DeepValidator,
18    R: ModuleReader,
19{
20    let mut modules = HashMap::new();
21    let validator = Validator::new(ops_descriptor);
22    load_module::<V, R>(&entry_path, &mut module_reader, &mut modules, &validator)?;
23    let mut program =
24        Program::from_modules(None, modules.iter().map(|(_, v)| v.clone()).collect())?;
25    validator.filter_program::<V>(&mut program);
26    if let Some(module) = program.modules.iter().position(|m| m.path == entry_path) {
27        if let Some(function) = program.modules[module]
28            .functions
29            .iter()
30            .position(|f| f.header.id == "main")
31        {
32            program.entry = Some(Entry::new(module, function));
33        }
34    }
35    if let Err(err) = validator.transform_program::<V>(&mut program) {
36        return Err(SimpleError::new(format!(
37            "Program {}: {}",
38            entry_path, err.message
39        )));
40    }
41    if let Err(err) = validator.validate_program::<V>(&program) {
42        return Err(SimpleError::new(format!(
43            "Program {}: {}",
44            entry_path, err.message
45        )));
46    }
47    Ok(program)
48}
49
50fn load_module<V, R>(
51    relative_path: &str,
52    module_reader: &mut R,
53    modules: &mut HashMap<String, Module>,
54    validator: &Validator,
55) -> SimpleResult<String>
56where
57    V: DeepValidator,
58    R: ModuleReader,
59{
60    let path = module_reader.compose_path(relative_path);
61    if modules.contains_key(&path) {
62        Ok(path)
63    } else if let Some(source) = module_reader.load_module_source(&path) {
64        match compile_module(&source) {
65            Ok(mut module) => {
66                module.path = path.clone();
67                module_reader.push_module_path(&path);
68                for import in &mut module.imports {
69                    import.module =
70                        load_module::<V, R>(&import.module, module_reader, modules, validator)?;
71                }
72                module_reader.pop_module_path();
73                modules.insert(path.clone(), module);
74                Ok(path)
75            }
76            Err(err) => Err(SimpleError::new(err.pretty)),
77        }
78    } else {
79        Err(SimpleError::new(format!(
80            "Could not load module: {:?}",
81            path
82        )))
83    }
84}
kaiju_compiler_core/lib.rs

kaiju_compiler_core/
lib.rs
