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Finish operator overflow checking (#308)

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JT 2021-11-08 17:44:59 +13:00 committed by GitHub
parent b5bade6187
commit e0a26cd048
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2 changed files with 63 additions and 29 deletions
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2
TODO.md
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@ -33,8 +33,8 @@
- [x] block variable captures
- [x] improved history and config paths
- [x] ctrl-c support
- [x] operator overflow
- [ ] Support for `$in`
- [ ] operator overflow
- [ ] shells
- [ ] plugins
- [ ] dataframes

90
crates/nu-protocol/src/value/mod.rs
View file

@ -535,16 +535,24 @@ impl Value {
span,
}),
(Value::Duration { val: lhs, .. }, Value::Duration { val: rhs, .. }) => {
Ok(Value::Duration {
val: *lhs + *rhs,
span,
})
if let Some(val) = lhs.checked_add(*rhs) {
Ok(Value::Duration { val, span })
} else {
Err(ShellError::OperatorOverflow(
"add operation overflowed".into(),
span,
))
}
}
(Value::Filesize { val: lhs, .. }, Value::Filesize { val: rhs, .. }) => {
Ok(Value::Filesize {
val: *lhs + *rhs,
span,
})
if let Some(val) = lhs.checked_add(*rhs) {
Ok(Value::Filesize { val, span })
} else {
Err(ShellError::OperatorOverflow(
"add operation overflowed".into(),
span,
))
}
}
_ => Err(ShellError::OperatorMismatch {
@ -560,10 +568,16 @@ impl Value {
let span = span(&[self.span()?, rhs.span()?]);
match (self, rhs) {
(Value::Int { val: lhs, .. }, Value::Int { val: rhs, .. }) => Ok(Value::Int {
val: lhs - rhs,
span,
}),
(Value::Int { val: lhs, .. }, Value::Int { val: rhs, .. }) => {
if let Some(val) = lhs.checked_sub(*rhs) {
Ok(Value::Int { val, span })
} else {
Err(ShellError::OperatorOverflow(
"subtraction operation overflowed".into(),
span,
))
}
}
(Value::Int { val: lhs, .. }, Value::Float { val: rhs, .. }) => Ok(Value::Float {
val: *lhs as f64 - *rhs,
span,
@ -577,16 +591,24 @@ impl Value {
span,
}),
(Value::Duration { val: lhs, .. }, Value::Duration { val: rhs, .. }) => {
Ok(Value::Duration {
val: *lhs - *rhs,
span,
})
if let Some(val) = lhs.checked_sub(*rhs) {
Ok(Value::Duration { val, span })
} else {
Err(ShellError::OperatorOverflow(
"subtraction operation overflowed".into(),
span,
))
}
}
(Value::Filesize { val: lhs, .. }, Value::Filesize { val: rhs, .. }) => {
Ok(Value::Filesize {
val: *lhs - *rhs,
span,
})
if let Some(val) = lhs.checked_sub(*rhs) {
Ok(Value::Filesize { val, span })
} else {
Err(ShellError::OperatorOverflow(
"add operation overflowed".into(),
span,
))
}
}
_ => Err(ShellError::OperatorMismatch {
@ -602,10 +624,16 @@ impl Value {
let span = span(&[self.span()?, rhs.span()?]);
match (self, rhs) {
(Value::Int { val: lhs, .. }, Value::Int { val: rhs, .. }) => Ok(Value::Int {
val: lhs * rhs,
span,
}),
(Value::Int { val: lhs, .. }, Value::Int { val: rhs, .. }) => {
if let Some(val) = lhs.checked_mul(*rhs) {
Ok(Value::Int { val, span })
} else {
Err(ShellError::OperatorOverflow(
"multiply operation overflowed".into(),
span,
))
}
}
(Value::Int { val: lhs, .. }, Value::Float { val: rhs, .. }) => Ok(Value::Float {
val: *lhs as f64 * *rhs,
span,
@ -983,10 +1011,16 @@ impl Value {
let span = span(&[self.span()?, rhs.span()?]);
match (self, rhs) {
(Value::Int { val: lhs, .. }, Value::Int { val: rhs, .. }) => Ok(Value::Int {
val: lhs.pow(*rhs as u32),
span,
}),
(Value::Int { val: lhs, .. }, Value::Int { val: rhs, .. }) => {
if let Some(val) = lhs.checked_pow(*rhs as u32) {
Ok(Value::Int { val, span })
} else {
Err(ShellError::OperatorOverflow(
"pow operation overflowed".into(),
span,
))
}
}
(Value::Int { val: lhs, .. }, Value::Float { val: rhs, .. }) => Ok(Value::Float {
val: (*lhs as f64).powf(*rhs),
span,