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Add Dynamic::is_XXX API.

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This commit is contained in:
Stephen Chung
2022-11-09 12:44:57 +08:00
parent ad018aaae3
commit ce046422f0
22 changed files with 327 additions and 91 deletions
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195
src/types/dynamic.rs
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@@ -1626,6 +1626,194 @@ impl Dynamic {
_ => None,
}
}
/// Return `true` if the [`Dynamic`] holds a `()`.
#[inline]
#[must_use]
pub fn is_unit(&self) -> bool {
match self.0 {
Union::Unit(..) => true,
#[cfg(not(feature = "no_closure"))]
Union::Shared(ref cell, ..) => match crate::func::locked_read(cell).0 {
Union::Unit(..) => true,
_ => false,
},
_ => false,
}
}
/// Return `true` if the [`Dynamic`] holds the system integer type [`INT`].
#[inline]
#[must_use]
pub fn is_int(&self) -> bool {
match self.0 {
Union::Int(..) => true,
#[cfg(not(feature = "no_closure"))]
Union::Shared(ref cell, ..) => match crate::func::locked_read(cell).0 {
Union::Int(..) => true,
_ => false,
},
_ => false,
}
}
/// Return `true` if the [`Dynamic`] holds the system floating-point type [`FLOAT`][crate::FLOAT].
///
/// Not available under `no_float`.
#[cfg(not(feature = "no_float"))]
#[inline]
#[must_use]
pub fn is_float(&self) -> bool {
match self.0 {
Union::Float(..) => true,
#[cfg(not(feature = "no_closure"))]
Union::Shared(ref cell, ..) => match crate::func::locked_read(cell).0 {
Union::Float(..) => true,
_ => false,
},
_ => false,
}
}
/// _(decimal)_ Return `true` if the [`Dynamic`] holds a [`Decimal`][rust_decimal::Decimal].
///
/// Exported under the `decimal` feature only.
#[cfg(feature = "decimal")]
#[inline]
#[must_use]
pub fn is_decimal(&self) -> bool {
match self.0 {
Union::Decimal(..) => true,
#[cfg(not(feature = "no_closure"))]
Union::Shared(ref cell, ..) => match crate::func::locked_read(cell).0 {
Union::Decimal(..) => true,
_ => false,
},
_ => false,
}
}
/// Return `true` if the [`Dynamic`] holds a [`bool`].
#[inline]
#[must_use]
pub fn is_bool(&self) -> bool {
match self.0 {
Union::Bool(..) => true,
#[cfg(not(feature = "no_closure"))]
Union::Shared(ref cell, ..) => match crate::func::locked_read(cell).0 {
Union::Bool(..) => true,
_ => false,
},
_ => false,
}
}
/// Return `true` if the [`Dynamic`] holds a [`char`].
#[inline]
#[must_use]
pub fn is_char(&self) -> bool {
match self.0 {
Union::Char(..) => true,
#[cfg(not(feature = "no_closure"))]
Union::Shared(ref cell, ..) => match crate::func::locked_read(cell).0 {
Union::Char(..) => true,
_ => false,
},
_ => false,
}
}
/// Return `true` if the [`Dynamic`] holds an [`ImmutableString`].
#[inline]
#[must_use]
pub fn is_string(&self) -> bool {
match self.0 {
Union::Str(..) => true,
#[cfg(not(feature = "no_closure"))]
Union::Shared(ref cell, ..) => match crate::func::locked_read(cell).0 {
Union::Str(..) => true,
_ => false,
},
_ => false,
}
}
/// Return `true` if the [`Dynamic`] holds an [`Array`][crate::Array].
///
/// Not available under `no_index`.
#[cfg(not(feature = "no_index"))]
#[inline]
#[must_use]
pub fn is_array(&self) -> bool {
match self.0 {
Union::Array(..) => true,
#[cfg(not(feature = "no_closure"))]
Union::Shared(ref cell, ..) => match crate::func::locked_read(cell).0 {
Union::Array(..) => true,
_ => false,
},
_ => false,
}
}
/// Return `true` if the [`Dynamic`] holds a [`Blob`][crate::Blob].
///
/// Not available under `no_index`.
#[cfg(not(feature = "no_index"))]
#[inline]
#[must_use]
pub fn is_blob(&self) -> bool {
match self.0 {
Union::Blob(..) => true,
#[cfg(not(feature = "no_closure"))]
Union::Shared(ref cell, ..) => match crate::func::locked_read(cell).0 {
Union::Blob(..) => true,
_ => false,
},
_ => false,
}
}
/// Return `true` if the [`Dynamic`] holds a [`Map`][crate::Map].
///
/// Not available under `no_object`.
#[cfg(not(feature = "no_object"))]
#[inline]
#[must_use]
pub fn is_map(&self) -> bool {
match self.0 {
Union::Map(..) => true,
#[cfg(not(feature = "no_closure"))]
Union::Shared(ref cell, ..) => match crate::func::locked_read(cell).0 {
Union::Map(..) => true,
_ => false,
},
_ => false,
}
}
/// Return `true` if the [`Dynamic`] holds a [`FnPtr`].
#[inline]
#[must_use]
pub(crate) fn is_fnptr(&self) -> bool {
match self.0 {
Union::FnPtr(..) => true,
#[cfg(not(feature = "no_closure"))]
Union::Shared(ref cell, ..) => match crate::func::locked_read(cell).0 {
Union::FnPtr(..) => true,
_ => false,
},
_ => false,
}
}
/// Return `true` if the [`Dynamic`] holds a [timestamp][Instant].
///
/// Not available under `no_time`.
#[cfg(not(feature = "no_time"))]
#[inline]
#[must_use]
pub fn is_timestamp(&self) -> bool {
match self.0 {
Union::TimeStamp(..) => true,
#[cfg(not(feature = "no_closure"))]
Union::Shared(ref cell, ..) => match crate::func::locked_read(cell).0 {
Union::TimeStamp(..) => true,
_ => false,
},
_ => false,
}
}
/// Cast the [`Dynamic`] as a unit `()`.
/// Returns the name of the actual type if the cast fails.
#[inline]
@@ -1698,6 +1886,7 @@ impl Dynamic {
_ => Err(self.type_name()),
}
}
/// Cast the [`Dynamic`] as a string slice.
/// Returns the name of the actual type if the cast fails.
///
@@ -1741,6 +1930,8 @@ impl Dynamic {
}
/// Convert the [`Dynamic`] into an [`Array`][crate::Array].
/// Returns the name of the actual type if the cast fails.
///
/// Not available under `no_index`.
#[cfg(not(feature = "no_index"))]
#[inline(always)]
pub fn into_array(self) -> Result<crate::Array, &'static str> {
@@ -1760,6 +1951,8 @@ impl Dynamic {
}
/// Convert the [`Dynamic`] into a [`Vec`].
/// Returns the name of the actual type if any cast fails.
///
/// Not available under `no_index`.
#[cfg(not(feature = "no_index"))]
#[inline(always)]
pub fn into_typed_array<T: Variant + Clone>(self) -> Result<Vec<T>, &'static str> {
@@ -1814,6 +2007,8 @@ impl Dynamic {
}
/// Convert the [`Dynamic`] into a [`Blob`][crate::Blob].
/// Returns the name of the actual type if the cast fails.
///
/// Not available under `no_index`.
#[cfg(not(feature = "no_index"))]
#[inline(always)]
pub fn into_blob(self) -> Result<crate::Blob, &'static str> {