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feat: import

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This commit is contained in:
Artemy 2022-08-18 17:45:27 +03:00
parent 27ee5334da
commit 0676d8691f
1 changed files with 107 additions and 81 deletions
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188
src/interpreter.rs
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@ -29,87 +29,13 @@ impl Interpreter {
self.exit_from_scope();
}
pub fn new(file_path: String) -> Self {
match Path::new(&file_path)
.extension()
.and_then(OsStr::to_str)
.expect("The file must have the extension (.yaml, .json, .json5, .onla or .conla)")
{
"yaml" => {
let file_input = fs::read_to_string(&file_path).expect("File reading error");
let obj: serde_json::Value =
serde_yaml::from_str(&file_input).unwrap_or_else(|x| {
match x.location() {
Some(location) => {
eprintln!(
"{file_path}:{}:{} --> {x}",
location.column(),
location.line()
);
}
None => {
eprintln!("{}", x);
}
}
std::process::exit(1);
});
let commands = obj.as_array().unwrap_or_else(|| {
obj.get("main")
.expect("Each program must contain a `{main: [..commands]}` object or be a command array ([..commands])")
.as_array()
.expect("The program must be an array of commands")
});
Self {
commands: commands.clone(),
vars: HashMap::new(),
pos: 1,
scope: 0,
scopes: Vec::new(),
named_scopes: Vec::new(),
}
}
"conla" => {
let file_input = File::open(file_path).expect("File reading error");
let obj: serde_json::Value = rmp_serde::from_read(file_input)
.expect(".conla file (MessagePack) is invalid! ");
let commands = obj.as_array().unwrap_or_else(|| {
obj.get("main")
.expect("Each program must contain a `{main: [..commands]}` object or be a command array ([..commands])")
.as_array()
.expect("The program must be an array of commands")
});
Self {
commands: commands.clone(),
vars: HashMap::new(),
pos: 1,
scope: 0,
scopes: Vec::new(),
named_scopes: Vec::new(),
}
}
_ => {
let file_input = fs::read_to_string(&file_path).expect("File reading error");
let obj: serde_json::Value =
json5::from_str::<Value>(&file_input).unwrap_or_else(|x| {
eprintln!("{file_path}{x}");
std::process::exit(1);
});
let commands = obj.as_array().unwrap_or_else(|| {
obj.get("main")
.expect("Each program must contain a `{main: [..commands]}` object or be a command array ([..commands])")
.as_array()
.expect("The program must be an array of commands")
});
Self {
commands: commands.clone(),
vars: HashMap::new(),
pos: 1,
scope: 0,
scopes: Vec::new(),
named_scopes: Vec::new(),
}
}
Self {
commands: Interpreter::get_commands(file_path),
vars: HashMap::new(),
pos: 1,
scope: 0,
scopes: Vec::new(),
named_scopes: Vec::new(),
}
}
@ -141,6 +67,70 @@ impl Interpreter {
}
}
fn get_commands(file_path: String) -> Vec<Value> {
match Path::new(&file_path)
.extension()
.and_then(OsStr::to_str)
.expect("The file must have the extension (.yaml, .json, .json5, .onla or .conla)")
{
"yaml" => {
let file_input = fs::read_to_string(&file_path).expect("File reading error");
let obj: serde_json::Value =
serde_yaml::from_str(&file_input).unwrap_or_else(|x| {
match x.location() {
Some(location) => {
eprintln!(
"{file_path}:{}:{} --> {x}",
location.column(),
location.line()
);
}
None => {
eprintln!("{}", x);
}
}
std::process::exit(1);
});
let commands = obj.as_array().unwrap_or_else(|| {
obj.get("main")
.expect("Each program must contain a `{main: [..commands]}` object or be a command array ([..commands])")
.as_array()
.expect("The program must be an array of commands")
});
commands.clone()
}
"conla" => {
let file_input = File::open(file_path).expect("File reading error");
let obj: serde_json::Value = rmp_serde::from_read(file_input)
.expect(".conla file (MessagePack) is invalid! ");
let commands = obj.as_array().unwrap_or_else(|| {
obj.get("main")
.expect("Each program must contain a `{main: [..commands]}` object or be a command array ([..commands])")
.as_array()
.expect("The program must be an array of commands")
});
commands.clone()
}
_ => {
let file_input = fs::read_to_string(&file_path).expect("File reading error");
let obj: serde_json::Value =
json5::from_str::<Value>(&file_input).unwrap_or_else(|x| {
eprintln!("{file_path}{x}");
std::process::exit(1);
});
let commands = obj.as_array().unwrap_or_else(|| {
obj.get("main")
.expect("Each program must contain a `{main: [..commands]}` object or be a command array ([..commands])")
.as_array()
.expect("The program must be an array of commands")
});
commands.clone()
}
}
}
fn convert_to_yaml(&self, output_path: String) {
let mut output = File::create(output_path).expect("Failed to create output file");
write!(
@ -352,6 +342,14 @@ impl Interpreter {
},
"return" => return json!({ "return": value }),
"import" => match value {
Value::Object(value) => {
self.import(value);
}
_ => {
self.error("Unsupported data type for the `obj` argument, must be an array");
}
},
name => match value {
Value::Array(value) => {
return self.run_fn(name.to_string(), value);
@ -390,6 +388,34 @@ impl Interpreter {
return Value::Null;
}
fn import(&mut self, value: &Map<String, Value>) {
let path = value
.get("path")
.expect("The import must contain the `path` argument");
let as_name = value
.get("as")
.expect("The import must contain the `as` argument");
if let Value::String(path) = path.clone() {
if let Value::String(as_name) = as_name.clone() {
let commands = Interpreter::get_commands(path);
let length = commands.len();
self.named_scopes.push(as_name);
for i in 0..length {
let command = &commands[i];
self.eval_node(command);
self.pos = i;
}
self.named_scopes.pop();
} else {
self.error("`as` argument must be a string");
}
} else {
self.error("`path` argument must be a string");
}
}
fn calc_arr(&mut self, value: &Vec<Value>) -> Value {
Value::Array(
value