pub struct Module { /* private fields */ }
Expand description
Stores functions for a Dyon module.
Implementations§
source§impl Module
impl Module
sourcepub fn import_ext_prelude(&mut self, other: &Module)
pub fn import_ext_prelude(&mut self, other: &Module)
Import external prelude from other module.
sourcepub fn import(&mut self, other: &Module)
pub fn import(&mut self, other: &Module)
Import external prelude and loaded functions from module.
Examples found in repository?
examples/dyon.rs (line 150)
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fn main() {
let mut file: Option<String> = None;
let mut imports: Vec<Module> = vec![];
let mut module = Module::new();
let mut ctx = String::new();
println!("=== Dyon 0.49 ===");
println!("Type `help` for more information.");
loop {
if let Some(x) = file.as_ref() {
print!("({}) ", x);
}
print!("> ");
let _ = std::io::stdout().flush();
let mut input = String::new();
std::io::stdin().read_line(&mut input).expect("Expected input");
let command = input.trim().to_string();
if command == "\\" {
input = String::new();
let mut empty_lines = 0;
loop {
let mut line = String::new();
std::io::stdin().read_line(&mut line).expect("Expected input");
if line.trim() == "" {
empty_lines += 1;
if empty_lines >= 2 {break}
} else {
if empty_lines > 0 {input.push_str("\n")}
empty_lines = 0;
input.push_str(&line);
}
}
}
match &*command {
"bye" => break,
"ctx" => {
println!("{}", ctx);
continue;
}
"clear" => {
ctx = String::new();
module = Module::new();
file = None;
continue;
}
"help" => {
println!("{}", include_str!("../assets/repl/help.txt"));
continue;
}
"save" => {
if let Some(x) = file.as_ref() {
if std::fs::write(x, &ctx).is_err() {
println!("Saving failed.");
}
} else {
println!("Could not save.\nUse `save \"<file>\"`.");
}
continue;
}
_ if command.starts_with("save ") => {
let new_file = if let Some(x) = json_str(&command[5..]) {x}
else {
println!("Saving failed.");
continue;
};
if std::fs::write(&new_file, &ctx).is_err() {
println!("Saving failed.");
continue;
}
file = Some(new_file);
continue;
}
_ if command.starts_with("load ") => {
println!("Loading...");
let new_file = if let Some(x) = json_str(&command[5..]) {x}
else {
println!("Loading failed.");
continue;
};
println!(" {}", new_file);
ctx = match std::fs::read_to_string(&new_file) {
Ok(x) => x,
Err(_) => {
println!("Could not load {}", new_file);
continue;
}
};
file = Some(new_file);
if reload(&ctx, &mut module, &imports) {
continue;
}
println!("Done!");
continue;
}
_ if command.starts_with("import ") => {
println!("Importing...");
let file = if let Some(x) = json_str(&command[7..]) {x}
else {
println!("Import failed.");
continue;
};
println!(" {}", file);
let mut m = Module::new();
if error(load(&file, &mut m)) {
continue;
}
imports.push(m);
if reload(&ctx, &mut module, &imports) {
continue;
}
println!("Done!");
continue;
}
_ if command.starts_with("call ") => {
let f = if let Some(x) = json_str(&command[5..]) {x}
else {
println!("Could not call function.");
continue;
};
input = format!("{{\n{}()\nreturn\n}}\n", f);
}
"" => {
// Print separator for readability.
print!("\n------------------------------------<o=o");
println!("o=o>------------------------------------\n");
continue;
}
_ => {}
}
let mut sub_module = Module::new();
sub_module.import(&module);
let res = load_str("dyonrepl", Arc::new(input.clone()), &mut sub_module);
if res.is_err() {
// Try evaluation expression.
let code = format!("fn main() {{println({})}}", input);
if error(run_str_with_module("dyonrepl", Arc::new(code), &module)) {
error(res);
}
} else {
println!("{}", input);
ctx.push_str(&input);
if reload(&ctx, &mut module, &imports) {
continue;
}
}
}
}
fn reload(ctx: &str, module: &mut Module, imports: &[Module]) -> bool {
let mut new_module = Module::new();
for m in imports {new_module.import(m)};
if !error(load_str("dyonrep", Arc::new(ctx.into()), &mut new_module)) {
*module = new_module;
false
} else {true}
}
fn run_str_with_module(
source: &str,
d: Arc<String>,
module: &Module,
) -> Result<(), String> {
let mut m = Module::new();
m.import(module);
load_str(source, d, &mut m)?;
let mut runtime = Runtime::new();
runtime.run(&Arc::new(m))?;
Ok(())
}
sourcepub fn new() -> Module
pub fn new() -> Module
Creates a new module with standard library.
Examples found in repository?
examples/functions.rs (line 21)
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fn load_module() -> Option<dyon::Module> {
use dyon::Type::*;
use dyon::{error, load, Dfn, Module};
let mut module = Module::new();
module.add_str("say_hello", say_hello, Dfn::nl(vec![], Void));
module.add_str("homer", homer, Dfn::nl(vec![], Any));
module.add_str("age", age, Dfn::nl(vec![Any], Any));
module.add_str("mr", mr, Dfn::nl(vec![Str; 2], Str));
module.add_str("origo", origo, Dfn::nl(vec![], Object));
module.add_str("id", id, Dfn::nl(vec![], Mat4));
// Register custom Rust object with an ad-hoc type.
let ty_custom_object = AdHoc(Arc::new("CustomObject".into()), Box::new(Any));
module.add_str(
"custom_object",
custom_object,
Dfn::nl(vec![], ty_custom_object.clone()),
);
module.add_str(
"print_custom_object",
print_custom_object,
Dfn::nl(vec![ty_custom_object.clone()], Void),
);
if error(load("source/functions/loader.dyon", &mut module)) {
None
} else {
Some(module)
}
}
More examples
examples/call.rs (line 8)
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fn main() {
let mut module = Module::new();
// Add functions to read `a` and `b` from `RustArgs`.
module.add(
Arc::new("a_of".into()),
a_of,
Dfn::nl(vec![Type::Any], Type::F64),
);
module.add(
Arc::new("b_of".into()),
b_of,
Dfn::nl(vec![Type::Any], Type::F64),
);
error(load_str(
"main.dyon",
Arc::new(
r#"
fn add_args(a: f64, b: f64) {
println("add_args:")
println(link {a" + "b" = "a + b})
}
fn add_obj(obj: {}) {
println("add_obj:")
println(link {obj.a" + "obj.b" = "obj.a + obj.b})
}
fn add_rust(obj: any) {
println("add_rust")
a := a_of(obj)
b := b_of(obj)
println(link {a" + "b" = "a + b})
}
add(a, b) = a + b
create_vec(a, b) = (a, b)
id(obj) = clone(obj)
"#
.into(),
),
&mut module,
));
let ref module = Arc::new(module);
let a = 20.0;
let b = 30.0;
// Call with multiple arguments.
let call = Call::new("add_args").arg(a).arg(b);
error(call.run(&mut Runtime::new(), module));
// Call with object.
let call = Call::new("add_obj").arg(Args { a, b });
error(call.run(&mut Runtime::new(), module));
// Call with rust object.
let call = Call::new("add_rust").rust(RustArgs { a, b });
error(call.run(&mut Runtime::new(), module));
// Call function with return value.
let call = Call::new("add").arg(a).arg(b);
match call.run_ret::<f64>(&mut Runtime::new(), module) {
Ok(answer) => {
println!("{}", answer);
}
Err(err) => {
error(Err(err));
}
}
// Call function that returns vec4.
let call = Call::new("create_vec").arg(a).arg(b);
match call.run_vec4::<[f64; 2]>(&mut Runtime::new(), module) {
Ok(answer) => {
println!("{:?}", answer);
}
Err(err) => {
error(Err(err));
}
}
// Call function that returns Rust object.
let call = Call::new("id").rust(RustArgs { a, b });
match call.run_ret::<RustObject>(&mut Runtime::new(), module) {
Ok(answer) => {
println!("{:?}", answer.lock().unwrap().downcast_ref::<RustArgs>());
}
Err(err) => {
error(Err(err));
}
}
}
examples/dyon.rs (line 13)
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fn main() {
let mut file: Option<String> = None;
let mut imports: Vec<Module> = vec![];
let mut module = Module::new();
let mut ctx = String::new();
println!("=== Dyon 0.49 ===");
println!("Type `help` for more information.");
loop {
if let Some(x) = file.as_ref() {
print!("({}) ", x);
}
print!("> ");
let _ = std::io::stdout().flush();
let mut input = String::new();
std::io::stdin().read_line(&mut input).expect("Expected input");
let command = input.trim().to_string();
if command == "\\" {
input = String::new();
let mut empty_lines = 0;
loop {
let mut line = String::new();
std::io::stdin().read_line(&mut line).expect("Expected input");
if line.trim() == "" {
empty_lines += 1;
if empty_lines >= 2 {break}
} else {
if empty_lines > 0 {input.push_str("\n")}
empty_lines = 0;
input.push_str(&line);
}
}
}
match &*command {
"bye" => break,
"ctx" => {
println!("{}", ctx);
continue;
}
"clear" => {
ctx = String::new();
module = Module::new();
file = None;
continue;
}
"help" => {
println!("{}", include_str!("../assets/repl/help.txt"));
continue;
}
"save" => {
if let Some(x) = file.as_ref() {
if std::fs::write(x, &ctx).is_err() {
println!("Saving failed.");
}
} else {
println!("Could not save.\nUse `save \"<file>\"`.");
}
continue;
}
_ if command.starts_with("save ") => {
let new_file = if let Some(x) = json_str(&command[5..]) {x}
else {
println!("Saving failed.");
continue;
};
if std::fs::write(&new_file, &ctx).is_err() {
println!("Saving failed.");
continue;
}
file = Some(new_file);
continue;
}
_ if command.starts_with("load ") => {
println!("Loading...");
let new_file = if let Some(x) = json_str(&command[5..]) {x}
else {
println!("Loading failed.");
continue;
};
println!(" {}", new_file);
ctx = match std::fs::read_to_string(&new_file) {
Ok(x) => x,
Err(_) => {
println!("Could not load {}", new_file);
continue;
}
};
file = Some(new_file);
if reload(&ctx, &mut module, &imports) {
continue;
}
println!("Done!");
continue;
}
_ if command.starts_with("import ") => {
println!("Importing...");
let file = if let Some(x) = json_str(&command[7..]) {x}
else {
println!("Import failed.");
continue;
};
println!(" {}", file);
let mut m = Module::new();
if error(load(&file, &mut m)) {
continue;
}
imports.push(m);
if reload(&ctx, &mut module, &imports) {
continue;
}
println!("Done!");
continue;
}
_ if command.starts_with("call ") => {
let f = if let Some(x) = json_str(&command[5..]) {x}
else {
println!("Could not call function.");
continue;
};
input = format!("{{\n{}()\nreturn\n}}\n", f);
}
"" => {
// Print separator for readability.
print!("\n------------------------------------<o=o");
println!("o=o>------------------------------------\n");
continue;
}
_ => {}
}
let mut sub_module = Module::new();
sub_module.import(&module);
let res = load_str("dyonrepl", Arc::new(input.clone()), &mut sub_module);
if res.is_err() {
// Try evaluation expression.
let code = format!("fn main() {{println({})}}", input);
if error(run_str_with_module("dyonrepl", Arc::new(code), &module)) {
error(res);
}
} else {
println!("{}", input);
ctx.push_str(&input);
if reload(&ctx, &mut module, &imports) {
continue;
}
}
}
}
fn reload(ctx: &str, module: &mut Module, imports: &[Module]) -> bool {
let mut new_module = Module::new();
for m in imports {new_module.import(m)};
if !error(load_str("dyonrep", Arc::new(ctx.into()), &mut new_module)) {
*module = new_module;
false
} else {true}
}
fn run_str_with_module(
source: &str,
d: Arc<String>,
module: &Module,
) -> Result<(), String> {
let mut m = Module::new();
m.import(module);
load_str(source, d, &mut m)?;
let mut runtime = Runtime::new();
runtime.run(&Arc::new(m))?;
Ok(())
}
sourcepub fn find_function(&self, name: &Arc<String>, relative: usize) -> FnIndex
pub fn find_function(&self, name: &Arc<String>, relative: usize) -> FnIndex
Find function relative another function index.
sourcepub fn add<T>(
&mut self,
name: Arc<String>,
f: fn(_: &mut Runtime) -> T,
prelude_function: Dfn
)where
fn(_: &mut Runtime) -> T: Into<FnExt>,
pub fn add<T>( &mut self, name: Arc<String>, f: fn(_: &mut Runtime) -> T, prelude_function: Dfn )where fn(_: &mut Runtime) -> T: Into<FnExt>,
Adds a new external prelude function.
Examples found in repository?
examples/call.rs (lines 11-15)
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fn main() {
let mut module = Module::new();
// Add functions to read `a` and `b` from `RustArgs`.
module.add(
Arc::new("a_of".into()),
a_of,
Dfn::nl(vec![Type::Any], Type::F64),
);
module.add(
Arc::new("b_of".into()),
b_of,
Dfn::nl(vec![Type::Any], Type::F64),
);
error(load_str(
"main.dyon",
Arc::new(
r#"
fn add_args(a: f64, b: f64) {
println("add_args:")
println(link {a" + "b" = "a + b})
}
fn add_obj(obj: {}) {
println("add_obj:")
println(link {obj.a" + "obj.b" = "obj.a + obj.b})
}
fn add_rust(obj: any) {
println("add_rust")
a := a_of(obj)
b := b_of(obj)
println(link {a" + "b" = "a + b})
}
add(a, b) = a + b
create_vec(a, b) = (a, b)
id(obj) = clone(obj)
"#
.into(),
),
&mut module,
));
let ref module = Arc::new(module);
let a = 20.0;
let b = 30.0;
// Call with multiple arguments.
let call = Call::new("add_args").arg(a).arg(b);
error(call.run(&mut Runtime::new(), module));
// Call with object.
let call = Call::new("add_obj").arg(Args { a, b });
error(call.run(&mut Runtime::new(), module));
// Call with rust object.
let call = Call::new("add_rust").rust(RustArgs { a, b });
error(call.run(&mut Runtime::new(), module));
// Call function with return value.
let call = Call::new("add").arg(a).arg(b);
match call.run_ret::<f64>(&mut Runtime::new(), module) {
Ok(answer) => {
println!("{}", answer);
}
Err(err) => {
error(Err(err));
}
}
// Call function that returns vec4.
let call = Call::new("create_vec").arg(a).arg(b);
match call.run_vec4::<[f64; 2]>(&mut Runtime::new(), module) {
Ok(answer) => {
println!("{:?}", answer);
}
Err(err) => {
error(Err(err));
}
}
// Call function that returns Rust object.
let call = Call::new("id").rust(RustArgs { a, b });
match call.run_ret::<RustObject>(&mut Runtime::new(), module) {
Ok(answer) => {
println!("{:?}", answer.lock().unwrap().downcast_ref::<RustArgs>());
}
Err(err) => {
error(Err(err));
}
}
}
sourcepub fn add_str<T>(
&mut self,
name: &str,
f: fn(_: &mut Runtime) -> T,
prelude_function: Dfn
)where
fn(_: &mut Runtime) -> T: Into<FnExt>,
pub fn add_str<T>( &mut self, name: &str, f: fn(_: &mut Runtime) -> T, prelude_function: Dfn )where fn(_: &mut Runtime) -> T: Into<FnExt>,
Adds a new external prelude function.
Examples found in repository?
examples/functions.rs (line 22)
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
fn load_module() -> Option<dyon::Module> {
use dyon::Type::*;
use dyon::{error, load, Dfn, Module};
let mut module = Module::new();
module.add_str("say_hello", say_hello, Dfn::nl(vec![], Void));
module.add_str("homer", homer, Dfn::nl(vec![], Any));
module.add_str("age", age, Dfn::nl(vec![Any], Any));
module.add_str("mr", mr, Dfn::nl(vec![Str; 2], Str));
module.add_str("origo", origo, Dfn::nl(vec![], Object));
module.add_str("id", id, Dfn::nl(vec![], Mat4));
// Register custom Rust object with an ad-hoc type.
let ty_custom_object = AdHoc(Arc::new("CustomObject".into()), Box::new(Any));
module.add_str(
"custom_object",
custom_object,
Dfn::nl(vec![], ty_custom_object.clone()),
);
module.add_str(
"print_custom_object",
print_custom_object,
Dfn::nl(vec![ty_custom_object.clone()], Void),
);
if error(load("source/functions/loader.dyon", &mut module)) {
None
} else {
Some(module)
}
}
sourcepub fn add_binop(
&mut self,
name: Arc<String>,
f: fn(_: &Variable, _: &Variable) -> Result<Variable, String>,
prelude_function: Dfn
)
pub fn add_binop( &mut self, name: Arc<String>, f: fn(_: &Variable, _: &Variable) -> Result<Variable, String>, prelude_function: Dfn )
Adds a new external prelude binary operator.
Trait Implementations§
Auto Trait Implementations§
impl !RefUnwindSafe for Module
impl Send for Module
impl Sync for Module
impl Unpin for Module
impl !UnwindSafe for Module
Blanket Implementations§
source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere T: ?Sized,
source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more