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29 lines
787 B
Rust
29 lines
787 B
Rust
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use crate::support;
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extern "C" {
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fn v8__Value__IsUndefined(this: &Value) -> bool;
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fn v8__Value__IsNull(this: &Value) -> bool;
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fn v8__Value__IsNullOrUndefined(this: &Value) -> bool;
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}
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#[repr(C)]
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pub struct Value(support::Opaque);
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impl Value {
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/// Returns true if this value is the undefined value. See ECMA-262 4.3.10.
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pub fn is_undefined(&self) -> bool {
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unsafe { v8__Value__IsUndefined(self) }
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}
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/// Returns true if this value is the null value. See ECMA-262 4.3.11.
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pub fn is_null(&self) -> bool {
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unsafe { v8__Value__IsNull(self) }
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}
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/// Returns true if this value is either the null or the undefined value.
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/// See ECMA-262 4.3.11. and 4.3.12
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pub fn is_null_or_undefined(&self) -> bool {
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unsafe { v8__Value__IsNullOrUndefined(self) }
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}
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}
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