use crate::base::coerce_compare;
use crate::base::shape::{Column, InlineShape};
use crate::primitive::style_primitive;
use bigdecimal::Signed;
use chrono::{DateTime, NaiveDate, Utc};
use nu_errors::ShellError;
use nu_protocol::hir::Operator;
use nu_protocol::ShellTypeName;
use nu_protocol::{Primitive, Type, UntaggedValue};
use nu_source::{DebugDocBuilder, PrettyDebug, Span, Tagged};
use nu_table::TextStyle;
use num_bigint::BigInt;
use num_bigint::ToBigInt;
use num_traits::{ToPrimitive, Zero};
use std::collections::HashMap;
pub struct Date;
impl Date {
pub fn from_regular_str(s: Tagged<&str>) -> Result<UntaggedValue, ShellError> {
let date = DateTime::parse_from_rfc3339(s.item).map_err(|err| {
ShellError::labeled_error(
&format!("Date parse error: {}", err),
"original value",
s.tag,
)
})?;
let date = date.with_timezone(&chrono::offset::Utc);
Ok(UntaggedValue::Primitive(Primitive::Date(date.into())))
}
pub fn naive_from_str(s: Tagged<&str>) -> Result<UntaggedValue, ShellError> {
let date = NaiveDate::parse_from_str(s.item, "%Y-%m-%d").map_err(|reason| {
ShellError::labeled_error(
&format!("Date parse error: {}", reason),
"original value",
s.tag,
)
})?;
Ok(UntaggedValue::Primitive(Primitive::Date(
DateTime::<Utc>::from_utc(date.and_hms(12, 34, 56), Utc).into(),
)))
}
}
pub fn date_from_str(s: Tagged<&str>) -> Result<UntaggedValue, ShellError> {
Date::from_regular_str(s)
}
pub fn date_naive_from_str(s: Tagged<&str>) -> Result<UntaggedValue, ShellError> {
Date::naive_from_str(s)
}
pub fn merge_values(
left: &UntaggedValue,
right: &UntaggedValue,
) -> Result<UntaggedValue, (&'static str, &'static str)> {
match (left, right) {
(UntaggedValue::Row(columns), UntaggedValue::Row(columns_b)) => {
Ok(UntaggedValue::Row(columns.merge_from(columns_b)))
}
(left, right) => Err((left.type_name(), right.type_name())),
}
}
fn zero_division_error() -> UntaggedValue {
UntaggedValue::Error(ShellError::untagged_runtime_error("division by zero"))
}
pub fn unsafe_compute_values(
operator: Operator,
left: &UntaggedValue,
right: &UntaggedValue,
) -> Result<UntaggedValue, (&'static str, &'static str)> {
let computed = compute_values(operator, left, right);
if computed.is_ok() {
return computed;
}
match (left, right) {
(UntaggedValue::Primitive(lhs), UntaggedValue::Primitive(rhs)) => match (lhs, rhs) {
(Primitive::Filesize(x), Primitive::Int(y)) => match operator {
Operator::Multiply => {
Ok(UntaggedValue::Primitive(Primitive::Filesize(x * *y as u64)))
}
Operator::Divide => {
Ok(UntaggedValue::Primitive(Primitive::Filesize(x / *y as u64)))
}
_ => Err((left.type_name(), right.type_name())),
},
(Primitive::Int(x), Primitive::Filesize(y)) => match operator {
Operator::Multiply => {
Ok(UntaggedValue::Primitive(Primitive::Filesize(*x as u64 * y)))
}
_ => Err((left.type_name(), right.type_name())),
},
_ => Err((left.type_name(), right.type_name())),
},
_ => Err((left.type_name(), right.type_name())),
}
}
pub fn compute_values(
operator: Operator,
left: &UntaggedValue,
right: &UntaggedValue,
) -> Result<UntaggedValue, (&'static str, &'static str)> {
match (left, right) {
(UntaggedValue::Primitive(lhs), UntaggedValue::Primitive(rhs)) => match (lhs, rhs) {
(Primitive::Filesize(x), Primitive::Filesize(y)) => {
let result = match operator {
Operator::Plus => Ok(x + y),
Operator::Minus => Ok(x - y),
Operator::Multiply => Ok(x * y),
Operator::Divide => {
if y.is_zero() {
Err((left.type_name(), right.type_name()))
} else {
Ok(x / y)
}
}
_ => Err((left.type_name(), right.type_name())),
}?;
Ok(UntaggedValue::Primitive(Primitive::Filesize(result)))
}
(Primitive::Filesize(x), Primitive::Int(y)) => match operator {
Operator::Multiply => {
Ok(UntaggedValue::Primitive(Primitive::Filesize(x * *y as u64)))
}
Operator::Divide => {
Ok(UntaggedValue::Primitive(Primitive::Filesize(x / *y as u64)))
}
_ => Err((left.type_name(), right.type_name())),
},
(Primitive::Int(x), Primitive::Filesize(y)) => match operator {
Operator::Multiply => {
Ok(UntaggedValue::Primitive(Primitive::Filesize(*x as u64 * y)))
}
_ => Err((left.type_name(), right.type_name())),
},
(Primitive::Int(x), Primitive::Int(y)) => match operator {
Operator::Plus => Ok(UntaggedValue::Primitive(Primitive::Int(x + y))),
Operator::Minus => Ok(UntaggedValue::Primitive(Primitive::Int(x - y))),
Operator::Multiply => Ok(UntaggedValue::Primitive(Primitive::Int(x * y))),
Operator::Divide => {
if y.is_zero() {
Ok(zero_division_error())
} else if x - (y * (x / y)) == 0 {
Ok(UntaggedValue::Primitive(Primitive::Int(x / y)))
} else {
Ok(UntaggedValue::Primitive(Primitive::Decimal(
bigdecimal::BigDecimal::from(*x) / bigdecimal::BigDecimal::from(*y),
)))
}
}
Operator::Modulo => {
if y.is_zero() {
Ok(zero_division_error())
} else {
Ok(UntaggedValue::Primitive(Primitive::Int(x % y)))
}
}
Operator::Pow => {
let prim_u32 = ToPrimitive::to_u32(y);
let sign = match x.is_negative() {
true => -1,
false => 1,
};
if !y.is_negative() {
match prim_u32 {
Some(num) => Ok(UntaggedValue::Primitive(Primitive::Int(
sign * (x.pow(num)),
))),
_ => Err((left.type_name(), right.type_name())),
}
} else {
let yp = bigdecimal::ToPrimitive::to_f64(y).unwrap_or(0.0);
let xp = bigdecimal::ToPrimitive::to_f64(x).unwrap_or(0.0);
let pow =
bigdecimal::FromPrimitive::from_f64((sign as f64) * (xp.powf(yp)));
match pow {
Some(p) => Ok(UntaggedValue::Primitive(Primitive::Decimal(p))),
_ => Err((left.type_name(), right.type_name())),
}
}
}
_ => Err((left.type_name(), right.type_name())),
},
(Primitive::Int(x), Primitive::BigInt(y)) => match operator {
Operator::Plus => Ok(UntaggedValue::Primitive(Primitive::BigInt(
BigInt::from(*x) + y,
))),
Operator::Minus => Ok(UntaggedValue::Primitive(Primitive::BigInt(
BigInt::from(*x) - y,
))),
Operator::Multiply => Ok(UntaggedValue::Primitive(Primitive::BigInt(
BigInt::from(*x) * y,
))),
Operator::Divide => {
if y.is_zero() {
Ok(zero_division_error())
} else if x - (y * (x / y)) == BigInt::from(0) {
Ok(UntaggedValue::Primitive(Primitive::BigInt(
BigInt::from(*x) / y,
)))
} else {
Ok(UntaggedValue::Primitive(Primitive::Decimal(
bigdecimal::BigDecimal::from(*x)
/ bigdecimal::BigDecimal::from(y.clone()),
)))
}
}
Operator::Modulo => {
if y.is_zero() {
Ok(zero_division_error())
} else {
Ok(UntaggedValue::Primitive(Primitive::BigInt(x % y)))
}
}
Operator::Pow => {
let prim_u32 = ToPrimitive::to_u32(y);
let sign = match x.is_negative() {
true => -1,
false => 1,
};
if !y.is_negative() {
match prim_u32 {
Some(num) => Ok(UntaggedValue::Primitive(Primitive::Int(
sign * (x.pow(num)),
))),
_ => Err((left.type_name(), right.type_name())),
}
} else {
let yp = bigdecimal::ToPrimitive::to_f64(y).unwrap_or(0.0);
let xp = bigdecimal::ToPrimitive::to_f64(x).unwrap_or(0.0);
let pow =
bigdecimal::FromPrimitive::from_f64((sign as f64) * (xp.powf(yp)));
match pow {
Some(p) => Ok(UntaggedValue::Primitive(Primitive::Decimal(p))),
_ => Err((left.type_name(), right.type_name())),
}
}
}
_ => Err((left.type_name(), right.type_name())),
},
(Primitive::BigInt(x), Primitive::Int(y)) => match operator {
Operator::Plus => Ok(UntaggedValue::Primitive(Primitive::BigInt(
x + BigInt::from(*y),
))),
Operator::Minus => Ok(UntaggedValue::Primitive(Primitive::BigInt(
x - BigInt::from(*y),
))),
Operator::Multiply => Ok(UntaggedValue::Primitive(Primitive::BigInt(
x * BigInt::from(*y),
))),
Operator::Divide => {
if y.is_zero() {
Ok(zero_division_error())
} else if x - (y * (x / y)) == BigInt::from(0) {
Ok(UntaggedValue::Primitive(Primitive::BigInt(
x / BigInt::from(*y),
)))
} else {
Ok(UntaggedValue::Primitive(Primitive::Decimal(
bigdecimal::BigDecimal::from(x.clone())
/ bigdecimal::BigDecimal::from(*y),
)))
}
}
Operator::Modulo => {
if y.is_zero() {
Ok(zero_division_error())
} else {
Ok(UntaggedValue::Primitive(Primitive::BigInt(x % y)))
}
}
Operator::Pow => {
let prim_u32 = ToPrimitive::to_u32(y);
let sign = match x.is_negative() {
true => -1,
false => 1,
};
if !y.is_negative() {
match prim_u32 {
Some(num) => Ok(UntaggedValue::Primitive(Primitive::BigInt(
(sign.to_bigint().unwrap_or_default()) * x.pow(num),
))),
_ => Err((left.type_name(), right.type_name())),
}
} else {
let yp = bigdecimal::ToPrimitive::to_f64(y).unwrap_or(0.0);
let xp = bigdecimal::ToPrimitive::to_f64(x).unwrap_or(0.0);
let pow = bigdecimal::FromPrimitive::from_f64((sign as f64) * xp.powf(yp));
match pow {
Some(p) => Ok(UntaggedValue::Primitive(Primitive::Decimal(p))),
_ => Err((left.type_name(), right.type_name())),
}
}
}
_ => Err((left.type_name(), right.type_name())),
},
(Primitive::BigInt(x), Primitive::BigInt(y)) => match operator {
Operator::Plus => Ok(UntaggedValue::Primitive(Primitive::BigInt(x + y))),
Operator::Minus => Ok(UntaggedValue::Primitive(Primitive::BigInt(x - y))),
Operator::Multiply => Ok(UntaggedValue::Primitive(Primitive::BigInt(x * y))),
Operator::Divide => {
if y.is_zero() {
Ok(zero_division_error())
} else if x - (y * (x / y)) == BigInt::from(0) {
Ok(UntaggedValue::Primitive(Primitive::BigInt(x / y)))
} else {
Ok(UntaggedValue::Primitive(Primitive::Decimal(
bigdecimal::BigDecimal::from(x.clone())
/ bigdecimal::BigDecimal::from(y.clone()),
)))
}
}
Operator::Modulo => {
if y.is_zero() {
Ok(zero_division_error())
} else {
Ok(UntaggedValue::Primitive(Primitive::BigInt(x % y)))
}
}
Operator::Pow => {
let prim_u32 = ToPrimitive::to_u32(y);
let sign = match x.is_negative() {
true => -1,
false => 1,
};
if !y.is_negative() {
match prim_u32 {
Some(num) => Ok(UntaggedValue::Primitive(Primitive::BigInt(
(sign.to_bigint().unwrap_or_default()).pow(num),
))),
_ => Err((left.type_name(), right.type_name())),
}
} else {
let yp = bigdecimal::ToPrimitive::to_f64(y).unwrap_or(0.0);
let xp = bigdecimal::ToPrimitive::to_f64(x).unwrap_or(0.0);
let pow =
bigdecimal::FromPrimitive::from_f64((sign as f64) * (xp.powf(yp)));
match pow {
Some(p) => Ok(UntaggedValue::Primitive(Primitive::Decimal(p))),
_ => Err((left.type_name(), right.type_name())),
}
}
}
_ => Err((left.type_name(), right.type_name())),
},
(Primitive::Decimal(x), Primitive::Int(y)) => {
let result = match operator {
Operator::Plus => Ok(x + bigdecimal::BigDecimal::from(*y)),
Operator::Minus => Ok(x - bigdecimal::BigDecimal::from(*y)),
Operator::Multiply => Ok(x * bigdecimal::BigDecimal::from(*y)),
Operator::Divide => {
if y.is_zero() {
return Ok(zero_division_error());
}
Ok(x / bigdecimal::BigDecimal::from(*y))
}
Operator::Modulo => {
if y.is_zero() {
return Ok(zero_division_error());
}
Ok(x % bigdecimal::BigDecimal::from(*y))
}
Operator::Pow => {
let sign = match x.is_negative() {
true => -1,
false => 1,
};
let yp = bigdecimal::ToPrimitive::to_f64(y).unwrap_or(0.0);
let xp = bigdecimal::ToPrimitive::to_f64(x).unwrap_or(0.0);
let pow =
bigdecimal::FromPrimitive::from_f64((sign as f64) * (xp.powf(yp)));
match pow {
Some(p) => Ok(p),
None => Err((left.type_name(), right.type_name())),
}
}
_ => Err((left.type_name(), right.type_name())),
}?;
Ok(UntaggedValue::Primitive(Primitive::Decimal(result)))
}
(Primitive::Int(x), Primitive::Decimal(y)) => {
let result = match operator {
Operator::Plus => Ok(bigdecimal::BigDecimal::from(*x) + y),
Operator::Minus => Ok(bigdecimal::BigDecimal::from(*x) - y),
Operator::Multiply => Ok(bigdecimal::BigDecimal::from(*x) * y),
Operator::Divide => {
if y.is_zero() {
return Ok(zero_division_error());
}
Ok(bigdecimal::BigDecimal::from(*x) / y)
}
Operator::Modulo => {
if y.is_zero() {
return Ok(zero_division_error());
}
Ok(bigdecimal::BigDecimal::from(*x) % y)
}
Operator::Pow => {
let sign = match x.is_negative() {
true => -1,
false => 1,
};
let yp = bigdecimal::ToPrimitive::to_f64(y).unwrap_or(0.0);
let xp = bigdecimal::ToPrimitive::to_f64(x).unwrap_or(0.0);
let pow =
bigdecimal::FromPrimitive::from_f64((sign as f64) * (xp.powf(yp)));
match pow {
Some(p) => Ok(p),
None => Err((left.type_name(), right.type_name())),
}
}
_ => Err((left.type_name(), right.type_name())),
}?;
Ok(UntaggedValue::Primitive(Primitive::Decimal(result)))
}
(Primitive::Decimal(x), Primitive::BigInt(y)) => {
let result = match operator {
Operator::Plus => Ok(x + bigdecimal::BigDecimal::from(y.clone())),
Operator::Minus => Ok(x - bigdecimal::BigDecimal::from(y.clone())),
Operator::Multiply => Ok(x * bigdecimal::BigDecimal::from(y.clone())),
Operator::Divide => {
if y.is_zero() {
return Ok(zero_division_error());
}
Ok(x / bigdecimal::BigDecimal::from(y.clone()))
}
Operator::Modulo => {
if y.is_zero() {
return Ok(zero_division_error());
}
Ok(x % bigdecimal::BigDecimal::from(y.clone()))
}
Operator::Pow => {
let sign = match x.is_negative() {
true => -1,
false => 1,
};
let yp = bigdecimal::ToPrimitive::to_f64(y).unwrap_or(0.0);
let xp = bigdecimal::ToPrimitive::to_f64(x).unwrap_or(0.0);
let pow =
bigdecimal::FromPrimitive::from_f64((sign as f64) * (xp.powf(yp)));
match pow {
Some(p) => Ok(p),
None => Err((left.type_name(), right.type_name())),
}
}
_ => Err((left.type_name(), right.type_name())),
}?;
Ok(UntaggedValue::Primitive(Primitive::Decimal(result)))
}
(Primitive::BigInt(x), Primitive::Decimal(y)) => {
let result = match operator {
Operator::Plus => Ok(bigdecimal::BigDecimal::from(x.clone()) + y),
Operator::Minus => Ok(bigdecimal::BigDecimal::from(x.clone()) - y),
Operator::Multiply => Ok(bigdecimal::BigDecimal::from(x.clone()) * y),
Operator::Divide => {
if y.is_zero() {
return Ok(zero_division_error());
}
Ok(bigdecimal::BigDecimal::from(x.clone()) / y)
}
Operator::Modulo => {
if y.is_zero() {
return Ok(zero_division_error());
}
Ok(bigdecimal::BigDecimal::from(x.clone()) % y)
}
Operator::Pow => {
let sign = match x.is_negative() {
true => -1,
false => 1,
};
let yp = bigdecimal::ToPrimitive::to_f64(y).unwrap_or(0.0);
let xp = bigdecimal::ToPrimitive::to_f64(x).unwrap_or(0.0);
let pow =
bigdecimal::FromPrimitive::from_f64((sign as f64) * (xp.powf(yp)));
match pow {
Some(p) => Ok(p),
None => Err((left.type_name(), right.type_name())),
}
}
_ => Err((left.type_name(), right.type_name())),
}?;
Ok(UntaggedValue::Primitive(Primitive::Decimal(result)))
}
(Primitive::Decimal(x), Primitive::Decimal(y)) => {
let result = match operator {
Operator::Plus => Ok(x + y),
Operator::Minus => Ok(x - y),
Operator::Multiply => Ok(x * y),
Operator::Divide => {
if y.is_zero() {
return Ok(zero_division_error());
}
Ok(x / y)
}
Operator::Modulo => {
if y.is_zero() {
return Ok(zero_division_error());
}
Ok(x % y)
}
Operator::Pow => {
let sign = match x.is_negative() {
true => -1,
false => 1,
};
let yp = bigdecimal::ToPrimitive::to_f64(y).unwrap_or(0.0);
let xp = bigdecimal::ToPrimitive::to_f64(x).unwrap_or(0.0);
let pow =
bigdecimal::FromPrimitive::from_f64((sign as f64) * (xp.powf(yp)));
match pow {
Some(p) => Ok(p),
None => Err((left.type_name(), right.type_name())),
}
}
_ => Err((left.type_name(), right.type_name())),
}?;
Ok(UntaggedValue::Primitive(Primitive::Decimal(result)))
}
(Primitive::Date(x), Primitive::Date(y)) => match operator {
Operator::Minus => Ok(UntaggedValue::Primitive(Primitive::from(
x.signed_duration_since(*y),
))),
_ => Err((left.type_name(), right.type_name())),
},
(Primitive::Date(x), Primitive::Duration(_)) => {
let result = match operator {
Operator::Plus => {
match Primitive::into_chrono_duration(rhs.clone(), Span::unknown()) {
Ok(y) => match x.checked_add_signed(y) {
Some(value) => Ok(value),
None => Err(("Date", "Duration and date addition overflow")),
},
Err(_) => Err(("Date", "Duration overflow")),
}
}
Operator::Minus => {
match Primitive::into_chrono_duration(rhs.clone(), Span::unknown()) {
Ok(y) => match x.checked_sub_signed(y) {
Some(value) => Ok(value),
None => Err(("Date", "Duration and date addition overflow")),
},
Err(_) => Err(("Date", "Duration overflow")),
}
}
_ => Err((left.type_name(), right.type_name())),
}?;
Ok(UntaggedValue::Primitive(Primitive::Date(result)))
}
(Primitive::Duration(x), Primitive::Duration(y)) => {
let result = match operator {
Operator::Plus => Ok(x + y),
Operator::Minus => Ok(x - y),
_ => Err((left.type_name(), right.type_name())),
}?;
Ok(UntaggedValue::Primitive(Primitive::Duration(result)))
}
(Primitive::Int(x), Primitive::Duration(y)) => {
let result = match operator {
Operator::Plus => Ok(x + y),
Operator::Minus => Ok(x - y),
_ => Err((left.type_name(), right.type_name())),
}?;
Ok(UntaggedValue::Primitive(Primitive::Duration(result)))
}
(Primitive::Duration(x), Primitive::Decimal(y)) => {
let result = match operator {
Operator::Divide => {
if y.is_zero() {
return Ok(zero_division_error());
}
let y = y.as_bigint_and_exponent();
Ok(x / y.0)
}
_ => Err((left.type_name(), right.type_name())),
}?;
Ok(UntaggedValue::Primitive(Primitive::Duration(result)))
}
(Primitive::String(x), Primitive::String(y)) => {
let mut new_string = x.clone();
new_string.push_str(y);
Ok(UntaggedValue::Primitive(Primitive::String(new_string)))
}
_ => Err((left.type_name(), right.type_name())),
},
_ => Err((left.type_name(), right.type_name())),
}
}
pub fn compare_values(
operator: Operator,
left: &UntaggedValue,
right: &UntaggedValue,
) -> Result<bool, (&'static str, &'static str)> {
let coerced = coerce_compare(left, right)?;
let ordering = coerced.compare();
use std::cmp::Ordering;
let result = matches!(
(operator, ordering),
(Operator::Equal, Ordering::Equal)
| (Operator::GreaterThan, Ordering::Greater)
| (Operator::GreaterThanOrEqual, Ordering::Greater)
| (Operator::GreaterThanOrEqual, Ordering::Equal)
| (Operator::LessThan, Ordering::Less)
| (Operator::LessThanOrEqual, Ordering::Less)
| (Operator::LessThanOrEqual, Ordering::Equal)
| (Operator::NotEqual, Ordering::Greater)
| (Operator::NotEqual, Ordering::Less)
);
Ok(result)
}
pub fn plain_type<'a>(value: impl Into<&'a UntaggedValue>, width: usize) -> String {
Type::from_value(value.into()).plain_string(width)
}
pub fn format_type<'a>(value: impl Into<&'a UntaggedValue>, width: usize) -> String {
Type::from_value(value.into()).colored_string(width)
}
pub fn format_leaf<'a>(value: impl Into<&'a UntaggedValue>) -> DebugDocBuilder {
InlineShape::from_value(value.into()).format().pretty()
}
pub fn style_leaf<'a>(
value: impl Into<&'a UntaggedValue>,
color_hash_map: &HashMap<String, nu_ansi_term::Style>,
) -> TextStyle {
match value.into() {
UntaggedValue::Primitive(p) => {
let str: &str = &p.to_string();
let str_len = str.len();
let paren_index = str.find('(').unwrap_or(str_len - 1);
let prim_type = str[0..paren_index].to_string();
style_primitive(&prim_type, color_hash_map)
}
_ => TextStyle::basic_left(),
}
}
pub fn format_for_column<'a>(
value: impl Into<&'a UntaggedValue>,
column: impl Into<Column>,
) -> DebugDocBuilder {
InlineShape::from_value(value.into())
.format_for_column(column)
.pretty()
}
#[cfg(test)]
mod tests {
use super::Date as d;
use super::UntaggedValue as v;
use super::{compute_values, merge_values};
use nu_protocol::hir::Operator;
use nu_protocol::{Primitive, UntaggedValue};
use nu_source::TaggedItem;
use indexmap::indexmap;
#[test]
fn merges_tables() {
let (author_1_date, author_2_date) = (
"2020-04-29".to_string().tagged_unknown(),
"2019-10-10".to_string().tagged_unknown(),
);
let table_author_row = v::row(indexmap! {
"name".into() => v::string("Andrés").into_untagged_value(),
"country".into() => v::string("EC").into_untagged_value(),
"date".into() => d::naive_from_str(author_1_date.borrow_tagged()).unwrap().into_untagged_value()
});
let other_table_author_row = v::row(indexmap! {
"name".into() => v::string("YK").into_untagged_value(),
"country".into() => v::string("US").into_untagged_value(),
"date".into() => d::naive_from_str(author_2_date.borrow_tagged()).unwrap().into_untagged_value()
});
assert_eq!(
other_table_author_row,
merge_values(&table_author_row, &other_table_author_row).unwrap()
);
}
#[test]
fn pow_operator_negatives_and_decimals() {
let result_one = compute_values(
Operator::Pow,
&UntaggedValue::Primitive(Primitive::Int(2)),
&UntaggedValue::Primitive(Primitive::Int(2)),
);
assert_eq!(
result_one.unwrap(),
UntaggedValue::Primitive(Primitive::Int(4))
);
let rhs_decimal = bigdecimal::FromPrimitive::from_f64(2.0).unwrap();
let result_two = compute_values(
Operator::Pow,
&UntaggedValue::Primitive(Primitive::Int(2)),
&UntaggedValue::Primitive(Primitive::Decimal(rhs_decimal)),
);
let should_equal_four_decimal = bigdecimal::FromPrimitive::from_f64(4.0).unwrap();
assert_eq!(
result_two.unwrap(),
UntaggedValue::Primitive(Primitive::Decimal(should_equal_four_decimal))
);
let rhs_decimal = bigdecimal::FromPrimitive::from_f64(2.0).unwrap();
let lhs_decimal = bigdecimal::FromPrimitive::from_f64(2.0).unwrap();
let should_equal_four_decimal = bigdecimal::FromPrimitive::from_f64(4.0).unwrap();
let result_three = compute_values(
Operator::Pow,
&UntaggedValue::Primitive(Primitive::Decimal(lhs_decimal)),
&UntaggedValue::Primitive(Primitive::Decimal(rhs_decimal)),
);
assert_eq!(
result_three.unwrap(),
UntaggedValue::Primitive(Primitive::Decimal(should_equal_four_decimal))
);
let result_four = compute_values(
Operator::Pow,
&UntaggedValue::Primitive(Primitive::Int(2)),
&UntaggedValue::Primitive(Primitive::Int(-2)),
);
let should_equal_zero_decimal = bigdecimal::FromPrimitive::from_f64(0.25).unwrap();
assert_eq!(
result_four.unwrap(),
UntaggedValue::Primitive(Primitive::Decimal(should_equal_zero_decimal))
);
let result_five = compute_values(
Operator::Pow,
&UntaggedValue::Primitive(Primitive::Int(-2)),
&UntaggedValue::Primitive(Primitive::Int(-2)),
);
let should_equal_neg_zero_decimal = bigdecimal::FromPrimitive::from_f64(-0.25).unwrap();
assert_eq!(
result_five.unwrap(),
UntaggedValue::Primitive(Primitive::Decimal(should_equal_neg_zero_decimal))
);
let result_six = compute_values(
Operator::Pow,
&UntaggedValue::Primitive(Primitive::Int(-2)),
&UntaggedValue::Primitive(Primitive::Int(2)),
);
assert_eq!(
result_six.unwrap(),
UntaggedValue::Primitive(Primitive::Int(-4))
);
let lhs_decimal = bigdecimal::FromPrimitive::from_f64(-2.0).unwrap();
let should_equal_neg_four_decimal = bigdecimal::FromPrimitive::from_f64(-4.0).unwrap();
let result_seven = compute_values(
Operator::Pow,
&UntaggedValue::Primitive(Primitive::Decimal(lhs_decimal)),
&UntaggedValue::Primitive(Primitive::Int(2)),
);
assert_eq!(
result_seven.unwrap(),
UntaggedValue::Primitive(Primitive::Decimal(should_equal_neg_four_decimal))
);
}
}