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Allow non-Dynamic in return_raw.

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This commit is contained in:
Stephen Chung 2021-03-22 11:18:09 +08:00
parent b3bcd7bf79
commit a82f0fc738
23 changed files with 214 additions and 282 deletions
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4
CHANGELOG.md
View File

@ -10,12 +10,14 @@ Breaking changes
* The traits `RegisterFn` and `RegisterResultFn` are removed. `Engine::register_fn` and `Engine::register_result_fn` are now implemented directly on `Engine`.
* `FnPtr::call_dynamic` now takes `&NativeCallContext` instead of consuming it.
* All `Module::set_fn_XXX` methods are removed, in favor of `Module::set_native_fn`.
* `Array::reduce` and `Array::reduce_rev` now take a `Dynamic` as initial value instead of a function pointer.
* `protected`, `super` are now reserved keywords.
Enhancements
------------
* `Engine::register_result_fn` no longer requires the successful return type to be `Dynamic`. It can now be any type.
* `Engine::register_result_fn` no longer requires the successful return type to be `Dynamic`. It can now be any clonable type.
* `#[rhai_fn(return_raw)]` can now return `Result<T, Box<EvalAltResult>>` where `T` is any clonable type instead of `Result<Dynamic, Box<EvalAltResult>>`.
Version 0.19.14

33
codegen/src/function.rs
View File

@ -279,7 +279,6 @@ pub struct ExportedFn {
signature: syn::Signature,
visibility: syn::Visibility,
pass_context: bool,
return_dynamic: bool,
mut_receiver: bool,
params: ExportedFnParams,
}
@ -290,10 +289,6 @@ impl Parse for ExportedFn {
let entire_span = fn_all.span();
let str_type_path = syn::parse2::<syn::Path>(quote! { str }).unwrap();
let dynamic_type_path1 = syn::parse2::<syn::Path>(quote! { Dynamic }).unwrap();
let dynamic_type_path2 = syn::parse2::<syn::Path>(quote! { rhai::Dynamic }).unwrap();
let mut return_dynamic = false;
let context_type_path1 = syn::parse2::<syn::Path>(quote! { NativeCallContext }).unwrap();
let context_type_path2 =
syn::parse2::<syn::Path>(quote! { rhai::NativeCallContext }).unwrap();
@ -400,11 +395,6 @@ impl Parse for ExportedFn {
"Rhai functions cannot return references",
))
}
syn::Type::Path(p)
if p.path == dynamic_type_path1 || p.path == dynamic_type_path2 =>
{
return_dynamic = true
}
_ => {}
}
}
@ -413,7 +403,6 @@ impl Parse for ExportedFn {
signature: fn_all.sig,
visibility,
pass_context,
return_dynamic,
mut_receiver,
params: Default::default(),
})
@ -520,7 +509,7 @@ impl ExportedFn {
if params.return_raw.is_some() && self.return_type().is_none() {
return Err(syn::Error::new(
params.return_raw.unwrap(),
"functions marked with 'return_raw' must return Result<Dynamic, Box<EvalAltResult>>",
"functions marked with 'return_raw' must return Result<T, Box<EvalAltResult>>",
));
}
@ -656,13 +645,7 @@ impl ExportedFn {
if self.params.return_raw.is_some() {
quote_spanned! { return_span =>
pub #dynamic_signature {
#name(#(#arguments),*)
}
}
} else if self.return_dynamic {
quote_spanned! { return_span =>
pub #dynamic_signature {
Ok(#name(#(#arguments),*))
#name(#(#arguments),*).map(Dynamic::from)
}
}
} else {
@ -890,18 +873,12 @@ impl ExportedFn {
.map(|r| r.span())
.unwrap_or_else(|| proc_macro2::Span::call_site());
let return_expr = if !self.params.return_raw.is_some() {
if self.return_dynamic {
quote_spanned! { return_span =>
Ok(#sig_name(#(#unpack_exprs),*))
}
} else {
quote_spanned! { return_span =>
Ok(Dynamic::from(#sig_name(#(#unpack_exprs),*)))
}
quote_spanned! { return_span =>
Ok(Dynamic::from(#sig_name(#(#unpack_exprs),*)))
}
} else {
quote_spanned! { return_span =>
#sig_name(#(#unpack_exprs),*)
#sig_name(#(#unpack_exprs),*).map(Dynamic::from)
}
};

4
codegen/src/test/function.rs
View File

@ -447,7 +447,7 @@ mod generate_tests {
fn call(&self, context: NativeCallContext, args: &mut [&mut Dynamic]) -> RhaiResult {
debug_assert_eq!(args.len(), 0usize,
"wrong arg count: {} != {}", args.len(), 0usize);
Ok(return_dynamic())
Ok(Dynamic::from(return_dynamic()))
}
fn is_method_call(&self) -> bool { false }
@ -477,7 +477,7 @@ mod generate_tests {
}
#[allow(unused)]
pub fn dynamic_result_fn() -> Result<Dynamic, Box<EvalAltResult> > {
Ok(return_dynamic())
Ok(Dynamic::from(return_dynamic()))
}
}
};

2
codegen/ui_tests/export_fn_raw_noreturn.stderr
View File

@ -1,4 +1,4 @@
error: functions marked with 'return_raw' must return Result<Dynamic, Box<EvalAltResult>>
error: functions marked with 'return_raw' must return Result<T, Box<EvalAltResult>>
--> $DIR/export_fn_raw_noreturn.rs:9:13
|
9 | #[export_fn(return_raw)]

13
codegen/ui_tests/export_fn_raw_return.stderr
View File

@ -1,10 +1,9 @@
error[E0308]: mismatched types
--> $DIR/export_fn_raw_return.rs:10:8
error[E0599]: the method `map` exists for type `bool`, but its trait bounds were not satisfied
--> $DIR/export_fn_raw_return.rs:10:33
|
9 | #[export_fn(return_raw)]
| ------------------------ expected `Result<rhai::Dynamic, std::boxed::Box<rhai::EvalAltResult>>` because of return type
10 | pub fn test_fn(input: Point) -> bool {
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected enum `Result`, found `bool`
| ^^^^ method cannot be called on `bool` due to unsatisfied trait bounds
|
= note: expected enum `Result<rhai::Dynamic, std::boxed::Box<rhai::EvalAltResult>>`
found type `bool`
= note: the following trait bounds were not satisfied:
`bool: std::iter::Iterator`
which is required by `&mut bool: std::iter::Iterator`

2
codegen/ui_tests/export_mod_raw_noreturn.stderr
View File

@ -1,4 +1,4 @@
error: functions marked with 'return_raw' must return Result<Dynamic, Box<EvalAltResult>>
error: functions marked with 'return_raw' must return Result<T, Box<EvalAltResult>>
--> $DIR/export_mod_raw_noreturn.rs:11:11
|
11 | #[rhai_fn(return_raw)]

14
codegen/ui_tests/export_mod_raw_return.stderr
View File

@ -1,11 +1,9 @@
error[E0308]: mismatched types
--> $DIR/export_mod_raw_return.rs:12:8
error[E0599]: the method `map` exists for type `bool`, but its trait bounds were not satisfied
--> $DIR/export_mod_raw_return.rs:12:33
|
9 | #[export_module]
| ---------------- expected `Result<rhai::Dynamic, std::boxed::Box<EvalAltResult>>` because of return type
...
12 | pub fn test_fn(input: Point) -> bool {
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected enum `Result`, found `bool`
| ^^^^ method cannot be called on `bool` due to unsatisfied trait bounds
|
= note: expected enum `Result<rhai::Dynamic, std::boxed::Box<EvalAltResult>>`
found type `bool`
= note: the following trait bounds were not satisfied:
`bool: std::iter::Iterator`
which is required by `&mut bool: std::iter::Iterator`

2
codegen/ui_tests/rhai_fn_non_clonable_return.stderr
View File

@ -6,5 +6,5 @@ error[E0277]: the trait bound `NonClonable: Clone` is not satisfied
|
::: $WORKSPACE/src/dynamic.rs
|
| pub fn from<T: Variant + Clone>(value: T) -> Self {
| pub fn from<T: Variant + Clone>(mut value: T) -> Self {
| ----- required by this bound in `rhai::Dynamic::from`

2
codegen/ui_tests/rhai_mod_non_clonable_return.stderr
View File

@ -6,5 +6,5 @@ error[E0277]: the trait bound `NonClonable: Clone` is not satisfied
|
::: $WORKSPACE/src/dynamic.rs
|
| pub fn from<T: Variant + Clone>(value: T) -> Self {
| pub fn from<T: Variant + Clone>(mut value: T) -> Self {
| ----- required by this bound in `rhai::Dynamic::from`

2
src/ast.rs
View File

@ -1303,7 +1303,7 @@ pub struct OpAssignment {
///
/// Two separate hashes are pre-calculated because of the following pattern:
///
/// ```,ignore
/// ```ignore
/// func(a, b, c); // Native: func(a, b, c) - 3 parameters
/// // Script: func(a, b, c) - 3 parameters
///

55
src/dynamic.rs
View File

@ -833,9 +833,13 @@ impl Dynamic {
/// assert_eq!(new_result.to_string(), "hello");
/// ```
#[inline(always)]
pub fn from<T: Variant + Clone>(value: T) -> Self {
pub fn from<T: Variant + Clone>(mut value: T) -> Self {
// Coded this way in order to maximally leverage potentials for dead-code removal.
if TypeId::of::<T>() == TypeId::of::<Dynamic>() {
return unsafe_try_cast::<_, Dynamic>(value).ok().unwrap();
}
if TypeId::of::<T>() == TypeId::of::<INT>() {
return <dyn Any>::downcast_ref::<INT>(&value)
.unwrap()
@ -884,46 +888,43 @@ impl Dynamic {
return ().into();
}
let mut boxed = Box::new(value);
boxed = match unsafe_cast_box::<_, Dynamic>(boxed) {
Ok(d) => return *d,
Err(val) => val,
};
boxed = match unsafe_cast_box::<_, String>(boxed) {
Ok(s) => return (*s).into(),
value = match unsafe_try_cast::<_, String>(value) {
Ok(s) => return (s).into(),
Err(val) => val,
};
#[cfg(not(feature = "no_index"))]
{
boxed = match unsafe_cast_box::<_, Array>(boxed) {
Ok(array) => return (*array).into(),
value = match unsafe_try_cast::<_, Array>(value) {
Ok(array) => return (array).into(),
Err(val) => val,
};
}
#[cfg(not(feature = "no_object"))]
{
boxed = match unsafe_cast_box::<_, Map>(boxed) {
Ok(map) => return (*map).into(),
value = match unsafe_try_cast::<_, Map>(value) {
Ok(map) => return (map).into(),
Err(val) => val,
}
}
boxed = match unsafe_cast_box::<_, FnPtr>(boxed) {
Ok(fn_ptr) => return (*fn_ptr).into(),
value = match unsafe_try_cast::<_, FnPtr>(value) {
Ok(fn_ptr) => return (fn_ptr).into(),
Err(val) => val,
};
#[cfg(not(feature = "no_std"))]
{
boxed = match unsafe_cast_box::<_, Instant>(boxed) {
Ok(timestamp) => return (*timestamp).into(),
value = match unsafe_try_cast::<_, Instant>(value) {
Ok(timestamp) => return (timestamp).into(),
Err(val) => val,
}
}
Self(Union::Variant(Box::new(boxed), AccessMode::ReadWrite))
Self(Union::Variant(
Box::new(Box::new(value)),
AccessMode::ReadWrite,
))
}
/// Turn the [`Dynamic`] value into a shared [`Dynamic`] value backed by an
/// [`Rc`][std::rc::Rc]`<`[`RefCell`][std::cell::RefCell]`<`[`Dynamic`]`>>` or
@ -986,12 +987,12 @@ impl Dynamic {
}
if TypeId::of::<T>() == TypeId::of::<Dynamic>() {
return unsafe_cast_box::<_, T>(Box::new(self)).ok().map(|v| *v);
return unsafe_try_cast::<_, T>(self).ok();
}
if TypeId::of::<T>() == TypeId::of::<INT>() {
return match self.0 {
Union::Int(value, _) => unsafe_try_cast(value),
Union::Int(value, _) => unsafe_try_cast(value).ok(),
_ => None,
};
}
@ -999,7 +1000,7 @@ impl Dynamic {
#[cfg(not(feature = "no_float"))]
if TypeId::of::<T>() == TypeId::of::<FLOAT>() {
return match self.0 {
Union::Float(value, _) => unsafe_try_cast(*value),
Union::Float(value, _) => unsafe_try_cast(*value).ok(),
_ => None,
};
}
@ -1007,35 +1008,35 @@ impl Dynamic {
#[cfg(feature = "decimal")]
if TypeId::of::<T>() == TypeId::of::<Decimal>() {
return match self.0 {
Union::Decimal(value, _) => unsafe_try_cast(*value),
Union::Decimal(value, _) => unsafe_try_cast(*value).ok(),
_ => None,
};
}
if TypeId::of::<T>() == TypeId::of::<bool>() {
return match self.0 {
Union::Bool(value, _) => unsafe_try_cast(value),
Union::Bool(value, _) => unsafe_try_cast(value).ok(),
_ => None,
};
}
if TypeId::of::<T>() == TypeId::of::<ImmutableString>() {
return match self.0 {
Union::Str(value, _) => unsafe_try_cast(value),
Union::Str(value, _) => unsafe_try_cast(value).ok(),
_ => None,
};
}
if TypeId::of::<T>() == TypeId::of::<String>() {
return match self.0 {
Union::Str(value, _) => unsafe_try_cast(value.into_owned()),
Union::Str(value, _) => unsafe_try_cast(value.into_owned()).ok(),
_ => None,
};
}
if TypeId::of::<T>() == TypeId::of::<char>() {
return match self.0 {
Union::Char(value, _) => unsafe_try_cast(value),
Union::Char(value, _) => unsafe_try_cast(value).ok(),
_ => None,
};
}
@ -1073,7 +1074,7 @@ impl Dynamic {
if TypeId::of::<T>() == TypeId::of::<()>() {
return match self.0 {
Union::Unit(value, _) => unsafe_try_cast(value),
Union::Unit(value, _) => unsafe_try_cast(value).ok(),
_ => None,
};
}

6
src/engine.rs
View File

@ -1047,12 +1047,6 @@ impl Engine {
let val = scope.get_mut_by_index(index);
// Check for data race - probably not necessary because the only place it should conflict is
// in a method call when the object variable is also used as a parameter.
// if cfg!(not(feature = "no_closure")) && val.is_locked() {
// return EvalAltResult::ErrorDataRace(name.into(), *pos).into();
// }
Ok((val.into(), *pos))
}

5
src/engine_api.rs
View File

@ -1885,9 +1885,8 @@ impl Engine {
.ok_or_else(|| EvalAltResult::ErrorFunctionNotFound(name.into(), Position::NONE))?;
// Check for data race.
if cfg!(not(feature = "no_closure")) {
crate::fn_call::ensure_no_data_race(name, args, false)?;
}
#[cfg(not(feature = "no_closure"))]
crate::fn_call::ensure_no_data_race(name, args, false)?;
self.call_script_fn(
scope,

2
src/fn_builtin.rs
View File

@ -109,7 +109,7 @@ pub fn get_builtin_binary_op_fn(
return Some(|_, args| {
let x = args[0].$xx().unwrap() as $base;
let y = args[1].$yy().unwrap() as $base;
$func(x, y)
$func(x, y).map(Into::<Dynamic>::into)
})
};
(from $base:ty => $xx:ident $op:tt $yy:ident) => {

5
src/fn_func.rs
View File

@ -98,10 +98,7 @@ macro_rules! def_anonymous_fn {
#[inline(always)]
fn create_from_ast(self, ast: AST, entry_point: &str) -> Self::Output {
let fn_name = entry_point.to_string();
Box::new(move |$($par: $par),*| {
self.call_fn(&mut Scope::new(), &ast, &fn_name, ($($par,)*))
})
Box::new(move |$($par),*| self.call_fn(&mut Scope::new(), &ast, &fn_name, ($($par,)*)))
}
#[inline(always)]

6
src/lib.rs
View File

@ -11,7 +11,7 @@
//!
//! ## Contents of `my_script.rhai`
//!
//! ```,ignore
//! ```ignore
//! /// Brute force factorial function
//! fn factorial(x) {
//! if x == 1 { return 1; }
@ -24,7 +24,7 @@
//!
//! ## The Rust part
//!
//! ```,no_run
//! ```no_run
//! use rhai::{Engine, EvalAltResult};
//!
//! fn main() -> Result<(), Box<EvalAltResult>>
@ -88,7 +88,7 @@ mod token;
mod r#unsafe;
mod utils;
type RhaiResult = Result<Dynamic, stdlib::boxed::Box<EvalAltResult>>;
type RhaiResult = stdlib::result::Result<Dynamic, stdlib::boxed::Box<EvalAltResult>>;
/// The system integer type. It is defined as [`i64`].
///

88
src/packages/arithmetic.rs
View File

@ -24,91 +24,91 @@ macro_rules! gen_arithmetic_functions {
#[export_module]
pub mod functions {
#[rhai_fn(name = "+", return_raw)]
pub fn add(x: $arg_type, y: $arg_type) -> Result<Dynamic, Box<EvalAltResult>> {
pub fn add(x: $arg_type, y: $arg_type) -> Result<$arg_type, Box<EvalAltResult>> {
if cfg!(not(feature = "unchecked")) {
x.checked_add(y).ok_or_else(|| make_err(format!("Addition overflow: {} + {}", x, y))).map(Dynamic::from)
x.checked_add(y).ok_or_else(|| make_err(format!("Addition overflow: {} + {}", x, y)))
} else {
Ok(Dynamic::from(x + y))
Ok(x + y)
}
}
#[rhai_fn(name = "-", return_raw)]
pub fn subtract(x: $arg_type, y: $arg_type) -> Result<Dynamic, Box<EvalAltResult>> {
pub fn subtract(x: $arg_type, y: $arg_type) -> Result<$arg_type, Box<EvalAltResult>> {
if cfg!(not(feature = "unchecked")) {
x.checked_sub(y).ok_or_else(|| make_err(format!("Subtraction overflow: {} - {}", x, y))).map(Dynamic::from)
x.checked_sub(y).ok_or_else(|| make_err(format!("Subtraction overflow: {} - {}", x, y)))
} else {
Ok(Dynamic::from(x - y))
Ok(x - y)
}
}
#[rhai_fn(name = "*", return_raw)]
pub fn multiply(x: $arg_type, y: $arg_type) -> Result<Dynamic, Box<EvalAltResult>> {
pub fn multiply(x: $arg_type, y: $arg_type) -> Result<$arg_type, Box<EvalAltResult>> {
if cfg!(not(feature = "unchecked")) {
x.checked_mul(y).ok_or_else(|| make_err(format!("Multiplication overflow: {} * {}", x, y))).map(Dynamic::from)
x.checked_mul(y).ok_or_else(|| make_err(format!("Multiplication overflow: {} * {}", x, y)))
} else {
Ok(Dynamic::from(x * y))
Ok(x * y)
}
}
#[rhai_fn(name = "/", return_raw)]
pub fn divide(x: $arg_type, y: $arg_type) -> Result<Dynamic, Box<EvalAltResult>> {
pub fn divide(x: $arg_type, y: $arg_type) -> Result<$arg_type, Box<EvalAltResult>> {
if cfg!(not(feature = "unchecked")) {
// Detect division by zero
if y == 0 {
Err(make_err(format!("Division by zero: {} / {}", x, y)))
} else {
x.checked_div(y).ok_or_else(|| make_err(format!("Division overflow: {} / {}", x, y))).map(Dynamic::from)
x.checked_div(y).ok_or_else(|| make_err(format!("Division overflow: {} / {}", x, y)))
}
} else {
Ok(Dynamic::from(x / y))
Ok(x / y)
}
}
#[rhai_fn(name = "%", return_raw)]
pub fn modulo(x: $arg_type, y: $arg_type) -> Result<Dynamic, Box<EvalAltResult>> {
pub fn modulo(x: $arg_type, y: $arg_type) -> Result<$arg_type, Box<EvalAltResult>> {
if cfg!(not(feature = "unchecked")) {
x.checked_rem(y).ok_or_else(|| make_err(format!("Modulo division by zero or overflow: {} % {}", x, y))).map(Dynamic::from)
x.checked_rem(y).ok_or_else(|| make_err(format!("Modulo division by zero or overflow: {} % {}", x, y)))
} else {
Ok(Dynamic::from(x % y))
Ok(x % y)
}
}
#[rhai_fn(name = "**", return_raw)]
pub fn power(x: INT, y: INT) -> Result<Dynamic, Box<EvalAltResult>> {
pub fn power(x: $arg_type, y: INT) -> Result<$arg_type, Box<EvalAltResult>> {
if cfg!(not(feature = "unchecked")) {
if cfg!(not(feature = "only_i32")) && y > (u32::MAX as INT) {
Err(make_err(format!("Integer raised to too large an index: {} ~ {}", x, y)))
} else if y < 0 {
Err(make_err(format!("Integer raised to a negative index: {} ~ {}", x, y)))
} else {
x.checked_pow(y as u32).ok_or_else(|| make_err(format!("Power overflow: {} ~ {}", x, y))).map(Dynamic::from)
x.checked_pow(y as u32).ok_or_else(|| make_err(format!("Power overflow: {} ~ {}", x, y)))
}
} else {
Ok(Dynamic::from(x.pow(y as u32)))
Ok(x.pow(y as u32))
}
}
#[rhai_fn(name = "<<", return_raw)]
pub fn shift_left(x: $arg_type, y: INT) -> Result<Dynamic, Box<EvalAltResult>> {
pub fn shift_left(x: $arg_type, y: INT) -> Result<$arg_type, Box<EvalAltResult>> {
if cfg!(not(feature = "unchecked")) {
if cfg!(not(feature = "only_i32")) && y > (u32::MAX as INT) {
Err(make_err(format!("Left-shift by too many bits: {} << {}", x, y)))
} else if y < 0 {
Err(make_err(format!("Left-shift by a negative number: {} << {}", x, y)))
} else {
x.checked_shl(y as u32).ok_or_else(|| make_err(format!("Left-shift by too many bits: {} << {}", x, y))).map(Dynamic::from)
x.checked_shl(y as u32).ok_or_else(|| make_err(format!("Left-shift by too many bits: {} << {}", x, y)))
}
} else {
Ok(Dynamic::from(x << y))
Ok(x << y)
}
}
#[rhai_fn(name = ">>", return_raw)]
pub fn shift_right(x: $arg_type, y: INT) -> Result<Dynamic, Box<EvalAltResult>> {
pub fn shift_right(x: $arg_type, y: INT) -> Result<$arg_type, Box<EvalAltResult>> {
if cfg!(not(feature = "unchecked")) {
if cfg!(not(feature = "only_i32")) && y > (u32::MAX as INT) {
Err(make_err(format!("Right-shift by too many bits: {} >> {}", x, y)))
} else if y < 0 {
Err(make_err(format!("Right-shift by a negative number: {} >> {}", x, y)))
} else {
x.checked_shr(y as u32).ok_or_else(|| make_err(format!("Right-shift by too many bits: {} >> {}", x, y))).map(Dynamic::from)
x.checked_shr(y as u32).ok_or_else(|| make_err(format!("Right-shift by too many bits: {} >> {}", x, y)))
}
} else {
Ok(Dynamic::from(x >> y))
Ok(x >> y)
}
}
#[rhai_fn(name = "&")]
@ -136,11 +136,11 @@ macro_rules! gen_signed_functions {
#[export_module]
pub mod functions {
#[rhai_fn(name = "-", return_raw)]
pub fn neg(x: $arg_type) -> Result<Dynamic, Box<EvalAltResult>> {
pub fn neg(x: $arg_type) -> Result<$arg_type, Box<EvalAltResult>> {
if cfg!(not(feature = "unchecked")) {
x.checked_neg().ok_or_else(|| make_err(format!("Negation overflow: -{}", x))).map(Dynamic::from)
x.checked_neg().ok_or_else(|| make_err(format!("Negation overflow: -{}", x)))
} else {
Ok(Dynamic::from(-x))
Ok(-x)
}
}
#[rhai_fn(name = "+")]
@ -148,11 +148,11 @@ macro_rules! gen_signed_functions {
x
}
#[rhai_fn(return_raw)]
pub fn abs(x: $arg_type) -> Result<Dynamic, Box<EvalAltResult>> {
pub fn abs(x: $arg_type) -> Result<$arg_type, Box<EvalAltResult>> {
if cfg!(not(feature = "unchecked")) {
x.checked_abs().ok_or_else(|| make_err(format!("Negation overflow: -{}", x))).map(Dynamic::from)
x.checked_abs().ok_or_else(|| make_err(format!("Negation overflow: -{}", x)))
} else {
Ok(Dynamic::from(x.abs()))
Ok(x.abs())
}
}
pub fn sign(x: $arg_type) -> INT {
@ -318,14 +318,14 @@ mod f32_functions {
}
}
#[rhai_fn(name = "**", return_raw)]
pub fn pow_f_i(x: f32, y: INT) -> Result<Dynamic, Box<EvalAltResult>> {
pub fn pow_f_i(x: f32, y: INT) -> Result<f32, Box<EvalAltResult>> {
if cfg!(not(feature = "unchecked")) && y > (i32::MAX as INT) {
Err(make_err(format!(
"Number raised to too large an index: {} ~ {}",
x, y
)))
} else {
Ok(Dynamic::from(x.powi(y as i32)))
Ok(x.powi(y as i32))
}
}
}
@ -423,14 +423,14 @@ mod f64_functions {
}
}
#[rhai_fn(name = "**", return_raw)]
pub fn pow_f_i(x: FLOAT, y: INT) -> Result<Dynamic, Box<EvalAltResult>> {
pub fn pow_f_i(x: FLOAT, y: INT) -> Result<FLOAT, Box<EvalAltResult>> {
if cfg!(not(feature = "unchecked")) && y > (i32::MAX as INT) {
Err(make_err(format!(
"Number raised to too large an index: {} ~ {}",
x, y
)))
} else {
Ok(x.powi(y as i32).into())
Ok(x.powi(y as i32))
}
}
}
@ -441,37 +441,37 @@ pub mod decimal_functions {
use rust_decimal::{prelude::Zero, Decimal};
#[rhai_fn(skip, return_raw)]
pub fn add(x: Decimal, y: Decimal) -> Result<Dynamic, Box<EvalAltResult>> {
pub fn add(x: Decimal, y: Decimal) -> Result<Decimal, Box<EvalAltResult>> {
if cfg!(not(feature = "unchecked")) {
x.checked_add(y)
.ok_or_else(|| make_err(format!("Addition overflow: {} + {}", x, y)))
.map(Into::<Dynamic>::into)
} else {
Ok(Dynamic::from(x + y))
Ok(x + y)
}
}
#[rhai_fn(skip, return_raw)]
pub fn subtract(x: Decimal, y: Decimal) -> Result<Dynamic, Box<EvalAltResult>> {
pub fn subtract(x: Decimal, y: Decimal) -> Result<Decimal, Box<EvalAltResult>> {
if cfg!(not(feature = "unchecked")) {
x.checked_sub(y)
.ok_or_else(|| make_err(format!("Subtraction overflow: {} - {}", x, y)))
.map(Into::<Dynamic>::into)
} else {
Ok(Dynamic::from(x - y))
Ok(x - y)
}
}
#[rhai_fn(skip, return_raw)]
pub fn multiply(x: Decimal, y: Decimal) -> Result<Dynamic, Box<EvalAltResult>> {
pub fn multiply(x: Decimal, y: Decimal) -> Result<Decimal, Box<EvalAltResult>> {
if cfg!(not(feature = "unchecked")) {
x.checked_mul(y)
.ok_or_else(|| make_err(format!("Multiplication overflow: {} * {}", x, y)))
.map(Into::<Dynamic>::into)
} else {
Ok(Dynamic::from(x * y))
Ok(x * y)
}
}
#[rhai_fn(skip, return_raw)]
pub fn divide(x: Decimal, y: Decimal) -> Result<Dynamic, Box<EvalAltResult>> {
pub fn divide(x: Decimal, y: Decimal) -> Result<Decimal, Box<EvalAltResult>> {
if cfg!(not(feature = "unchecked")) {
// Detect division by zero
if y == Decimal::zero() {
@ -482,11 +482,11 @@ pub mod decimal_functions {
.map(Into::<Dynamic>::into)
}
} else {
Ok(Dynamic::from(x / y))
Ok(x / y)
}
}
#[rhai_fn(skip, return_raw)]
pub fn modulo(x: Decimal, y: Decimal) -> Result<Dynamic, Box<EvalAltResult>> {
pub fn modulo(x: Decimal, y: Decimal) -> Result<Decimal, Box<EvalAltResult>> {
if cfg!(not(feature = "unchecked")) {
x.checked_rem(y)
.ok_or_else(|| {
@ -497,7 +497,7 @@ pub mod decimal_functions {
})
.map(Into::<Dynamic>::into)
} else {
Ok(Dynamic::from(x % y))
Ok(x % y)
}
}
#[rhai_fn(name = "-")]

94
src/packages/array_basic.rs
View File

@ -47,7 +47,7 @@ mod array_functions {
array: &mut Array,
len: INT,
item: Dynamic,
) -> Result<Dynamic, Box<EvalAltResult>> {
) -> Result<(), Box<EvalAltResult>> {
// Check if array will be over max size limit
#[cfg(not(feature = "unchecked"))]
if _ctx.engine().max_array_size() > 0
@ -62,7 +62,7 @@ mod array_functions {
array.resize(len as usize, item);
}
Ok(Dynamic::UNIT)
Ok(())
}
pub fn pop(array: &mut Array) -> Dynamic {
array.pop().unwrap_or_else(|| ().into())
@ -169,7 +169,7 @@ mod array_functions {
ctx: NativeCallContext,
array: &mut Array,
mapper: FnPtr,
) -> Result<Dynamic, Box<EvalAltResult>> {
) -> Result<Array, Box<EvalAltResult>> {
let mut ar = Array::with_capacity(max(TYPICAL_ARRAY_SIZE, array.len()));
for (i, item) in array.iter().enumerate() {
@ -195,14 +195,14 @@ mod array_functions {
);
}
Ok(ar.into())
Ok(ar)
}
#[rhai_fn(return_raw, pure)]
pub fn filter(
ctx: NativeCallContext,
array: &mut Array,
filter: FnPtr,
) -> Result<Dynamic, Box<EvalAltResult>> {
) -> Result<Array, Box<EvalAltResult>> {
let mut ar = Array::with_capacity(max(TYPICAL_ARRAY_SIZE, array.len()));
for (i, item) in array.iter().enumerate() {
@ -231,14 +231,14 @@ mod array_functions {
}
}
Ok(ar.into())
Ok(ar)
}
#[rhai_fn(return_raw, pure)]
pub fn contains(
ctx: NativeCallContext,
array: &mut Array,
value: Dynamic,
) -> Result<Dynamic, Box<EvalAltResult>> {
) -> Result<bool, Box<EvalAltResult>> {
for item in array.iter_mut() {
if ctx
.call_fn_dynamic_raw(OP_EQUALS, true, &mut [item, &mut value.clone()])
@ -258,18 +258,18 @@ mod array_functions {
.as_bool()
.unwrap_or(false)
{
return Ok(Dynamic::TRUE);
return Ok(true);
}
}
Ok(Dynamic::FALSE)
Ok(false)
}
#[rhai_fn(return_raw, pure)]
pub fn index_of(
ctx: NativeCallContext,
array: &mut Array,
value: Dynamic,
) -> Result<Dynamic, Box<EvalAltResult>> {
) -> Result<INT, Box<EvalAltResult>> {
for (i, item) in array.iter_mut().enumerate() {
if ctx
.call_fn_dynamic_raw(OP_EQUALS, true, &mut [item, &mut value.clone()])
@ -289,18 +289,18 @@ mod array_functions {
.as_bool()
.unwrap_or(false)
{
return Ok((i as INT).into());
return Ok(i as INT);
}
}
Ok((-1 as INT).into())
Ok(-1 as INT)
}
#[rhai_fn(name = "index_of", return_raw, pure)]
pub fn index_of_filter(
ctx: NativeCallContext,
array: &mut Array,
filter: FnPtr,
) -> Result<Dynamic, Box<EvalAltResult>> {
) -> Result<INT, Box<EvalAltResult>> {
for (i, item) in array.iter().enumerate() {
if filter
.call_dynamic(&ctx, None, [item.clone()])
@ -323,18 +323,18 @@ mod array_functions {
.as_bool()
.unwrap_or(false)
{
return Ok((i as INT).into());
return Ok(i as INT);
}
}
Ok((-1 as INT).into())
Ok(-1 as INT)
}
#[rhai_fn(return_raw, pure)]
pub fn some(
ctx: NativeCallContext,
array: &mut Array,
filter: FnPtr,
) -> Result<Dynamic, Box<EvalAltResult>> {
) -> Result<bool, Box<EvalAltResult>> {
for (i, item) in array.iter().enumerate() {
if filter
.call_dynamic(&ctx, None, [item.clone()])
@ -357,18 +357,18 @@ mod array_functions {
.as_bool()
.unwrap_or(false)
{
return Ok(true.into());
return Ok(true);
}
}
Ok(false.into())
Ok(false)
}
#[rhai_fn(return_raw, pure)]
pub fn all(
ctx: NativeCallContext,
array: &mut Array,
filter: FnPtr,
) -> Result<Dynamic, Box<EvalAltResult>> {
) -> Result<bool, Box<EvalAltResult>> {
for (i, item) in array.iter().enumerate() {
if !filter
.call_dynamic(&ctx, None, [item.clone()])
@ -391,11 +391,11 @@ mod array_functions {
.as_bool()
.unwrap_or(false)
{
return Ok(false.into());
return Ok(false);
}
}
Ok(true.into())
Ok(true)
}
#[rhai_fn(return_raw, pure)]
pub fn reduce(
@ -403,7 +403,7 @@ mod array_functions {
array: &mut Array,
reducer: FnPtr,
) -> Result<Dynamic, Box<EvalAltResult>> {
let mut result: Dynamic = Dynamic::UNIT;
let mut result = Dynamic::UNIT;
for (i, item) in array.iter().enumerate() {
result = reducer
@ -433,16 +433,9 @@ mod array_functions {
ctx: NativeCallContext,
array: &mut Array,
reducer: FnPtr,
initial: FnPtr,
initial: Dynamic,
) -> Result<Dynamic, Box<EvalAltResult>> {
let mut result = initial.call_dynamic(&ctx, None, []).map_err(|err| {
Box::new(EvalAltResult::ErrorInFunctionCall(
"reduce".to_string(),
ctx.source().unwrap_or("").to_string(),
err,
Position::NONE,
))
})?;
let mut result = initial;
for (i, item) in array.iter().enumerate() {
result = reducer
@ -473,7 +466,7 @@ mod array_functions {
array: &mut Array,
reducer: FnPtr,
) -> Result<Dynamic, Box<EvalAltResult>> {
let mut result: Dynamic = Dynamic::UNIT;
let mut result = Dynamic::UNIT;
for (i, item) in array.iter().enumerate().rev() {
result = reducer
@ -503,16 +496,9 @@ mod array_functions {
ctx: NativeCallContext,
array: &mut Array,
reducer: FnPtr,
initial: FnPtr,
initial: Dynamic,
) -> Result<Dynamic, Box<EvalAltResult>> {
let mut result = initial.call_dynamic(&ctx, None, []).map_err(|err| {
Box::new(EvalAltResult::ErrorInFunctionCall(
"reduce_rev".to_string(),
ctx.source().unwrap_or("").to_string(),
err,
Position::NONE,
))
})?;
let mut result = initial;
for (i, item) in array.iter().enumerate().rev() {
result = reducer
@ -542,7 +528,7 @@ mod array_functions {
ctx: NativeCallContext,
array: &mut Array,
comparer: FnPtr,
) -> Result<Dynamic, Box<EvalAltResult>> {
) -> Result<(), Box<EvalAltResult>> {
array.sort_by(|x, y| {
comparer
.call_dynamic(&ctx, None, [x.clone(), y.clone()])
@ -571,14 +557,14 @@ mod array_functions {
})
});
Ok(Dynamic::UNIT)
Ok(())
}
#[rhai_fn(return_raw)]
pub fn drain(
ctx: NativeCallContext,
array: &mut Array,
filter: FnPtr,
) -> Result<Dynamic, Box<EvalAltResult>> {
) -> Result<Array, Box<EvalAltResult>> {
let mut drained = Array::with_capacity(max(TYPICAL_ARRAY_SIZE, array.len()));
let mut i = array.len();
@ -611,7 +597,7 @@ mod array_functions {
}
}
Ok(drained.into())
Ok(drained)
}
#[rhai_fn(name = "drain")]
pub fn drain_range(array: &mut Array, start: INT, len: INT) -> Array {
@ -638,7 +624,7 @@ mod array_functions {
ctx: NativeCallContext,
array: &mut Array,
filter: FnPtr,
) -> Result<Dynamic, Box<EvalAltResult>> {
) -> Result<Array, Box<EvalAltResult>> {
let mut drained = Array::with_capacity(max(TYPICAL_ARRAY_SIZE, array.len()));
let mut i = array.len();
@ -671,7 +657,7 @@ mod array_functions {
}
}
Ok(drained.into())
Ok(drained)
}
#[rhai_fn(name = "retain")]
pub fn retain_range(array: &mut Array, start: INT, len: INT) -> Array {
@ -701,12 +687,12 @@ mod array_functions {
ctx: NativeCallContext,
array: &mut Array,
mut array2: Array,
) -> Result<Dynamic, Box<EvalAltResult>> {
) -> Result<bool, Box<EvalAltResult>> {
if array.len() != array2.len() {
return Ok(false.into());
return Ok(false);
}
if array.is_empty() {
return Ok(true.into());
return Ok(true);
}
for (a1, a2) in array.iter_mut().zip(array2.iter_mut()) {
@ -728,18 +714,18 @@ mod array_functions {
.as_bool()
.unwrap_or(false)
{
return Ok(Dynamic::FALSE);
return Ok(false);
}
}
Ok(Dynamic::TRUE)
Ok(true)
}
#[rhai_fn(name = "!=", return_raw, pure)]
pub fn not_equals(
ctx: NativeCallContext,
array: &mut Array,
array2: Array,
) -> Result<Dynamic, Box<EvalAltResult>> {
equals(ctx, array, array2).map(|r| (!r.as_bool().unwrap()).into())
) -> Result<bool, Box<EvalAltResult>> {
equals(ctx, array, array2).map(|r| !r)
}
}

16
src/packages/map_basic.rs
View File

@ -46,12 +46,12 @@ mod map_functions {
ctx: NativeCallContext,
map: &mut Map,
mut map2: Map,
) -> Result<Dynamic, Box<EvalAltResult>> {
) -> Result<bool, Box<EvalAltResult>> {
if map.len() != map2.len() {
return Ok(false.into());
return Ok(false);
}
if map.is_empty() {
return Ok(true.into());
return Ok(true);
}
for (m1, v1) in map.iter_mut() {
@ -61,22 +61,22 @@ mod map_functions {
.map(|v| v.as_bool().unwrap_or(false))?;
if !equals {
return Ok(false.into());
return Ok(false);
}
} else {
return Ok(false.into());
return Ok(false);
}
}
Ok(true.into())
Ok(true)
}
#[rhai_fn(name = "!=", return_raw, pure)]
pub fn not_equals(
ctx: NativeCallContext,
map: &mut Map,
map2: Map,
) -> Result<Dynamic, Box<EvalAltResult>> {
equals(ctx, map, map2).map(|r| (!r.as_bool().unwrap()).into())
) -> Result<bool, Box<EvalAltResult>> {
equals(ctx, map, map2).map(|r| !r)
}
#[cfg(not(feature = "no_index"))]

92
src/packages/math_basic.rs
View File

@ -113,7 +113,7 @@ def_package!(crate:BasicMathPackage:"Basic mathematic functions.", lib, {
#[export_module]
mod int_functions {
#[rhai_fn(name = "parse_int", return_raw)]
pub fn parse_int_radix(s: &str, radix: INT) -> Result<Dynamic, Box<EvalAltResult>> {
pub fn parse_int_radix(s: &str, radix: INT) -> Result<INT, Box<EvalAltResult>> {
if radix < 2 || radix > 36 {
return EvalAltResult::ErrorArithmetic(
format!("Invalid radix: '{}'", radix),
@ -122,18 +122,16 @@ mod int_functions {
.into();
}
INT::from_str_radix(s.trim(), radix as u32)
.map(Into::<Dynamic>::into)
.map_err(|err| {
EvalAltResult::ErrorArithmetic(
format!("Error parsing integer number '{}': {}", s, err),
Position::NONE,
)
.into()
})
INT::from_str_radix(s.trim(), radix as u32).map_err(|err| {
EvalAltResult::ErrorArithmetic(
format!("Error parsing integer number '{}': {}", s, err),
Position::NONE,
)
.into()
})
}
#[rhai_fn(name = "parse_int", return_raw)]
pub fn parse_int(s: &str) -> Result<Dynamic, Box<EvalAltResult>> {
pub fn parse_int(s: &str) -> Result<INT, Box<EvalAltResult>> {
parse_int_radix(s, 10)
}
}
@ -261,7 +259,7 @@ mod float_functions {
x.is_infinite()
}
#[rhai_fn(name = "to_int", return_raw)]
pub fn f32_to_int(x: f32) -> Result<Dynamic, Box<EvalAltResult>> {
pub fn f32_to_int(x: f32) -> Result<INT, Box<EvalAltResult>> {
if cfg!(not(feature = "unchecked")) && x > (MAX_INT as f32) {
EvalAltResult::ErrorArithmetic(
format!("Integer overflow: to_int({})", x),
@ -269,11 +267,11 @@ mod float_functions {
)
.into()
} else {
Ok((x.trunc() as INT).into())
Ok(x.trunc() as INT)
}
}
#[rhai_fn(name = "to_int", return_raw)]
pub fn f64_to_int(x: f64) -> Result<Dynamic, Box<EvalAltResult>> {
pub fn f64_to_int(x: f64) -> Result<INT, Box<EvalAltResult>> {
if cfg!(not(feature = "unchecked")) && x > (MAX_INT as f64) {
EvalAltResult::ErrorArithmetic(
format!("Integer overflow: to_int({})", x),
@ -281,21 +279,18 @@ mod float_functions {
)
.into()
} else {
Ok((x.trunc() as INT).into())
Ok(x.trunc() as INT)
}
}
#[rhai_fn(return_raw)]
pub fn parse_float(s: &str) -> Result<Dynamic, Box<EvalAltResult>> {
s.trim()
.parse::<FLOAT>()
.map(Into::<Dynamic>::into)
.map_err(|err| {
EvalAltResult::ErrorArithmetic(
format!("Error parsing floating-point number '{}': {}", s, err),
Position::NONE,
)
.into()
})
pub fn parse_float(s: &str) -> Result<f64, Box<EvalAltResult>> {
s.trim().parse::<FLOAT>().map_err(|err| {
EvalAltResult::ErrorArithmetic(
format!("Error parsing floating-point number '{}': {}", s, err),
Position::NONE,
)
.into()
})
}
#[cfg(not(feature = "f32_float"))]
pub mod f32_f64 {
@ -327,10 +322,10 @@ mod decimal_functions {
x.round()
}
#[rhai_fn(name = "round", return_raw)]
pub fn round_dp(x: Decimal, dp: INT) -> Result<Dynamic, Box<EvalAltResult>> {
pub fn round_dp(x: Decimal, dp: INT) -> Result<Decimal, Box<EvalAltResult>> {
if cfg!(not(feature = "unchecked")) {
if cfg!(not(feature = "only_i32")) && dp > (u32::MAX as INT) {
return Ok(x.into());
return Ok(x);
}
if dp < 0 {
return Err(make_err(format!(
@ -340,13 +335,13 @@ mod decimal_functions {
}
}
Ok(x.round_dp(dp as u32).into())
Ok(x.round_dp(dp as u32))
}
#[rhai_fn(return_raw)]
pub fn round_up(x: Decimal, dp: INT) -> Result<Dynamic, Box<EvalAltResult>> {
pub fn round_up(x: Decimal, dp: INT) -> Result<Decimal, Box<EvalAltResult>> {
if cfg!(not(feature = "unchecked")) {
if cfg!(not(feature = "only_i32")) && dp > (u32::MAX as INT) {
return Ok(x.into());
return Ok(x);
}
if dp < 0 {
return Err(make_err(format!(
@ -356,16 +351,13 @@ mod decimal_functions {
}
}
Ok(
x.round_dp_with_strategy(dp as u32, RoundingStrategy::RoundUp)
.into(),
)
Ok(x.round_dp_with_strategy(dp as u32, RoundingStrategy::RoundUp))
}
#[rhai_fn(return_raw)]
pub fn round_down(x: Decimal, dp: INT) -> Result<Dynamic, Box<EvalAltResult>> {
pub fn round_down(x: Decimal, dp: INT) -> Result<Decimal, Box<EvalAltResult>> {
if cfg!(not(feature = "unchecked")) {
if cfg!(not(feature = "only_i32")) && dp > (u32::MAX as INT) {
return Ok(x.into());
return Ok(x);
}
if dp < 0 {
return Err(make_err(format!(
@ -375,16 +367,13 @@ mod decimal_functions {
}
}
Ok(
x.round_dp_with_strategy(dp as u32, RoundingStrategy::RoundDown)
.into(),
)
Ok(x.round_dp_with_strategy(dp as u32, RoundingStrategy::RoundDown))
}
#[rhai_fn(return_raw)]
pub fn round_half_up(x: Decimal, dp: INT) -> Result<Dynamic, Box<EvalAltResult>> {
pub fn round_half_up(x: Decimal, dp: INT) -> Result<Decimal, Box<EvalAltResult>> {
if cfg!(not(feature = "unchecked")) {
if cfg!(not(feature = "only_i32")) && dp > (u32::MAX as INT) {
return Ok(x.into());
return Ok(x);
}
if dp < 0 {
return Err(make_err(format!(
@ -394,16 +383,13 @@ mod decimal_functions {
}
}
Ok(
x.round_dp_with_strategy(dp as u32, RoundingStrategy::RoundHalfUp)
.into(),
)
Ok(x.round_dp_with_strategy(dp as u32, RoundingStrategy::RoundHalfUp))
}
#[rhai_fn(return_raw)]
pub fn round_half_down(x: Decimal, dp: INT) -> Result<Dynamic, Box<EvalAltResult>> {
pub fn round_half_down(x: Decimal, dp: INT) -> Result<Decimal, Box<EvalAltResult>> {
if cfg!(not(feature = "unchecked")) {
if cfg!(not(feature = "only_i32")) && dp > (u32::MAX as INT) {
return Ok(x.into());
return Ok(x);
}
if dp < 0 {
return Err(make_err(format!(
@ -413,10 +399,7 @@ mod decimal_functions {
}
}
Ok(
x.round_dp_with_strategy(dp as u32, RoundingStrategy::RoundHalfDown)
.into(),
)
Ok(x.round_dp_with_strategy(dp as u32, RoundingStrategy::RoundHalfDown))
}
#[rhai_fn(name = "int", get = "int")]
pub fn int(x: Decimal) -> Decimal {
@ -427,10 +410,9 @@ mod decimal_functions {
x.fract()
}
#[rhai_fn(return_raw)]
pub fn parse_decimal(s: &str) -> Result<Dynamic, Box<EvalAltResult>> {
pub fn parse_decimal(s: &str) -> Result<Decimal, Box<EvalAltResult>> {
Decimal::from_str(s)
.or_else(|_| Decimal::from_scientific(s))
.map(Into::<Dynamic>::into)
.map_err(|err| {
EvalAltResult::ErrorArithmetic(
format!("Error parsing decimal number '{}': {}", s, err),

8
src/packages/string_more.rs
View File

@ -235,7 +235,7 @@ mod string_functions {
string: &mut ImmutableString,
len: INT,
character: char,
) -> Result<Dynamic, Box<crate::EvalAltResult>> {
) -> Result<(), Box<crate::EvalAltResult>> {
// Check if string will be over max size limit
#[cfg(not(feature = "unchecked"))]
if _ctx.engine().max_string_size() > 0 && len as usize > _ctx.engine().max_string_size() {
@ -269,7 +269,7 @@ mod string_functions {
}
}
Ok(Dynamic::UNIT)
Ok(())
}
#[rhai_fn(name = "pad", return_raw)]
pub fn pad_with_string(
@ -277,7 +277,7 @@ mod string_functions {
string: &mut ImmutableString,
len: INT,
padding: &str,
) -> Result<Dynamic, Box<crate::EvalAltResult>> {
) -> Result<(), Box<crate::EvalAltResult>> {
// Check if string will be over max size limit
#[cfg(not(feature = "unchecked"))]
if _ctx.engine().max_string_size() > 0 && len as usize > _ctx.engine().max_string_size() {
@ -318,7 +318,7 @@ mod string_functions {
}
}
Ok(Dynamic::UNIT)
Ok(())
}
#[cfg(not(feature = "no_index"))]

35
src/packages/time_basic.rs
View File

@ -143,28 +143,28 @@ mod time_functions {
}
#[rhai_fn(return_raw, name = "+")]
pub fn add(timestamp: Instant, seconds: FLOAT) -> Result<Dynamic, Box<EvalAltResult>> {
add_impl(timestamp, seconds).map(Into::<Dynamic>::into)
pub fn add(timestamp: Instant, seconds: FLOAT) -> Result<Instant, Box<EvalAltResult>> {
add_impl(timestamp, seconds)
}
#[rhai_fn(return_raw, name = "+=")]
pub fn add_assign(
timestamp: &mut Instant,
seconds: FLOAT,
) -> Result<Dynamic, Box<EvalAltResult>> {
) -> Result<(), Box<EvalAltResult>> {
*timestamp = add_impl(*timestamp, seconds)?;
Ok(Dynamic::UNIT)
Ok(())
}
#[rhai_fn(return_raw, name = "-")]
pub fn subtract(timestamp: Instant, seconds: FLOAT) -> Result<Dynamic, Box<EvalAltResult>> {
subtract_impl(timestamp, seconds).map(Into::<Dynamic>::into)
pub fn subtract(timestamp: Instant, seconds: FLOAT) -> Result<Instant, Box<EvalAltResult>> {
subtract_impl(timestamp, seconds)
}
#[rhai_fn(return_raw, name = "-=")]
pub fn subtract_assign(
timestamp: &mut Instant,
seconds: FLOAT,
) -> Result<Dynamic, Box<EvalAltResult>> {
) -> Result<(), Box<EvalAltResult>> {
*timestamp = subtract_impl(*timestamp, seconds)?;
Ok(Dynamic::UNIT)
Ok(())
}
}
@ -202,28 +202,25 @@ mod time_functions {
}
#[rhai_fn(return_raw, name = "+")]
pub fn add(timestamp: Instant, seconds: INT) -> Result<Dynamic, Box<EvalAltResult>> {
add_impl(timestamp, seconds).map(Into::<Dynamic>::into)
pub fn add(timestamp: Instant, seconds: INT) -> Result<Instant, Box<EvalAltResult>> {
add_impl(timestamp, seconds)
}
#[rhai_fn(return_raw, name = "+=")]
pub fn add_assign(
timestamp: &mut Instant,
seconds: INT,
) -> Result<Dynamic, Box<EvalAltResult>> {
pub fn add_assign(timestamp: &mut Instant, seconds: INT) -> Result<(), Box<EvalAltResult>> {
*timestamp = add_impl(*timestamp, seconds)?;
Ok(Dynamic::UNIT)
Ok(())
}
#[rhai_fn(return_raw, name = "-")]
pub fn subtract(timestamp: Instant, seconds: INT) -> Result<Dynamic, Box<EvalAltResult>> {
subtract_impl(timestamp, seconds).map(Into::<Dynamic>::into)
pub fn subtract(timestamp: Instant, seconds: INT) -> Result<Instant, Box<EvalAltResult>> {
subtract_impl(timestamp, seconds)
}
#[rhai_fn(return_raw, name = "-=")]
pub fn subtract_assign(
timestamp: &mut Instant,
seconds: INT,
) -> Result<Dynamic, Box<EvalAltResult>> {
) -> Result<(), Box<EvalAltResult>> {
*timestamp = subtract_impl(*timestamp, seconds)?;
Ok(Dynamic::UNIT)
Ok(())
}
#[rhai_fn(name = "==")]

6
src/unsafe.rs
View File

@ -9,7 +9,7 @@ use crate::stdlib::{
/// Cast a type into another type.
#[inline(always)]
pub fn unsafe_try_cast<A: Any, B: Any>(a: A) -> Option<B> {
pub fn unsafe_try_cast<A: Any, B: Any>(a: A) -> Result<B, A> {
if TypeId::of::<B>() == a.type_id() {
// SAFETY: Just checked we have the right type. We explicitly forget the
// value immediately after moving out, removing any chance of a destructor
@ -17,10 +17,10 @@ pub fn unsafe_try_cast<A: Any, B: Any>(a: A) -> Option<B> {
unsafe {
let ret: B = ptr::read(&a as *const _ as *const B);
mem::forget(a);
Some(ret)
Ok(ret)
}
} else {
None
Err(a)
}
}