interthread 3.1.0

Auto implementation of the Actor Model
Documentation 
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


use crate::model::Lib;
use std::path::PathBuf;
use std::fs::OpenOptions;
use std::io::{self,Read,Write};


pub fn get_text (path: &PathBuf) -> io::Result<String>{
    let mut file = std::fs::File::open(path)?;
    let mut contents = Vec::new();

    file.read_to_end(&mut contents)?;
    // Convert the raw bytes to a string
    let contents_string = String::from_utf8_lossy(&contents).into_owned();
    Ok(contents_string)
}

fn example_remove( path: &PathBuf) -> Result<(),String>{
    if let Err(_) = std::fs::remove_dir_all(path){
        return Err(format!("Internal Error.'write::example_remove'. Failed to remove directory - {:?}!", path)); 
    }
    Ok(())
}

fn example_create( path: &PathBuf) -> Result<(),String>{
    if let Err(_) = std::fs::create_dir(path){
        return Err(format!("Internal Error.'write::example_create'. Failed to create directory - {:?}!", path));
    }
    Ok(())
}

fn example_check_get() -> Result<PathBuf,String> {

    if let Ok(mut curr_dir) = std::env::current_dir(){

        curr_dir.push(crate::EXAMPLES);

        if !curr_dir.exists() {
            example_create( &curr_dir )?;
        }
        match std::env::var(crate::INTER_EXAMPLE_DIR_NAME){
            Ok(inter) => { curr_dir.push(inter); },
            Err(_) => {
                curr_dir.push(crate::INTER);
            },
        }
        if curr_dir.exists() {
            example_remove(&curr_dir)?;
        }
        example_create( &curr_dir )?;
        return Ok(curr_dir);
    }
    else {
        return Err(format!("Internal Error.'write::example_check_get'. 'CARGO_MANIFEST_DIR' - Not Present"));
    }
}

pub fn example_path( file_path: &PathBuf ) -> Result<PathBuf,String> {

    let mut path = example_check_get()?;
    if let Some(name) = file_path.file_name(){
        path.push(name);
        return Ok(path)
    }
    else {
        return Err(format!("Internal Error.'write::example_path'. Could not get file name!"));
    }
}

pub fn write( val:String, path: &PathBuf ) -> Result<(), std::io::Error>{

    let mut file = OpenOptions::new()
        .write(true)
        .truncate(true)
        .create(true)
        .open(path)?;

    write!(file, "{}", val)
}

fn write_file( file: syn::File, path: &PathBuf ) -> Result<(), std::io::Error> {

    let code =  prettyplease::unparse(&file);
    write(code, path )?;
    Ok(())
}

pub fn example_show( file: syn::File, path: &PathBuf, lib: Option<Lib > ) -> PathBuf {

    let main_file = if lib.is_none() { None } else {  be_main(path, lib.unwrap()) };

    match example_path(path) {

        Ok( mut ex_path ) => {

            let rltv_path = ex_path.clone().components().rev().take(3).collect::<Vec<_>>()
                                            .into_iter().rev().collect::<PathBuf>();
            
            if let Err(e) = write_file( file, &ex_path ){
                proc_macro_error::abort!(proc_macro2::Span::call_site(),e);
            }
            if let Some( main_file ) = main_file {
                ex_path.set_file_name("main.rs");

                if let Err(e) = write_file( main_file, &ex_path ){
                    proc_macro_error::abort!(proc_macro2::Span::call_site(),e);
                }
            }
            return rltv_path;
        },
        Err(e) => {
            proc_macro_error::abort!(proc_macro2::Span::call_site(),e);
        },
    }
}

fn be_main( path: &PathBuf ,lib: Lib ) ->  Option<syn::File> { 
    
    if let Some(stem) = path.file_stem(){
        if let Some(stem) = stem.to_str(){
            if stem == "main" {
                return None;
            }
            let main_file = crate::file::main_file(stem.into(),lib);
            return Some( main_file);
        }
        let msg = "Internal Error.'write::be_main'. Could not cast OsStr to Str!";
        proc_macro_error::abort!(proc_macro2::Span::call_site(),msg);
    }
    let msg = "Internal Error.'write::be_main'. Could not get 'file_stem' from provided path!";
    proc_macro_error::abort!(proc_macro2::Span::call_site(),msg);
}