Rust编写的JavaScript引擎,该项目是一个试验性质的项目。
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use super::*;
use crate::{
exec::Executable,
syntax::ast::{
node::{Call, Identifier, New},
Const,
},
};
impl Interpreter {
/// Constructs a `RangeError` with the specified message.
pub fn construct_range_error<M>(&mut self, message: M) -> Value
where
M: Into<String>,
{
// Runs a `new RangeError(message)`.
New::from(Call::new(
Identifier::from("RangeError"),
vec![Const::from(message.into()).into()],
))
.run(self)
.expect_err("RangeError should always throw")
}
/// Throws a `RangeError` with the specified message.
pub fn throw_range_error<M>(&mut self, message: M) -> Result<Value>
where
M: Into<String>,
{
Err(self.construct_range_error(message))
}
/// Constructs a `TypeError` with the specified message.
pub fn construct_type_error<M>(&mut self, message: M) -> Value
where
M: Into<String>,
{
// Runs a `new TypeError(message)`.
New::from(Call::new(
Identifier::from("TypeError"),
vec![Const::from(message.into()).into()],
))
.run(self)
.expect_err("TypeError should always throw")
}
/// Throws a `TypeError` with the specified message.
pub fn throw_type_error<M>(&mut self, message: M) -> Result<Value>
where
M: Into<String>,
{
Err(self.construct_type_error(message))
}
/// Constructs a `ReferenceError` with the specified message.
pub fn construct_reference_error<M>(&mut self, message: M) -> Value
where
M: Into<String>,
{
New::from(Call::new(
Identifier::from("ReferenceError"),
vec![Const::from(message.into() + " is not defined").into()],
))
.run(self)
.expect_err("ReferenceError should always throw")
}
/// Throws a `ReferenceError` with the specified message.
pub fn throw_reference_error<M>(&mut self, message: M) -> Result<Value>
where
M: Into<String>,
{
Err(self.construct_reference_error(message))
}
/// Constructs a `SyntaxError` with the specified message.
pub fn construct_syntax_error<M>(&mut self, message: M) -> Value
where
M: Into<String>,
{
New::from(Call::new(
Identifier::from("SyntaxError"),
vec![Const::from(message.into()).into()],
))
.run(self)
.expect_err("SyntaxError should always throw")
}
/// Throws a `SyntaxError` with the specified message.
pub fn throw_syntax_error<M>(&mut self, message: M) -> Result<Value>
where
M: Into<String>,
{
Err(self.construct_syntax_error(message))
}
}