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Add more helper functions

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This commit is contained in:
JT
2021-10-20 18:58:25 +13:00
parent 11070ffbbe
commit b322a12f58
12 changed files with 98 additions and 121 deletions
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76
crates/nu-engine/src/from_value.rs
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@ -1,5 +1,6 @@
// use std::path::PathBuf;
use chrono::{DateTime, FixedOffset};
// use nu_path::expand_path;
use nu_protocol::ast::{CellPath, PathMember};
use nu_protocol::ShellError;
@ -134,27 +135,26 @@ impl FromValue for Spanned<bool> {
}
}
// impl FromValue for DateTime<FixedOffset> {
// fn from_value(v: &Value) -> Result<Self, ShellError> {
// match v {
// Value {
// value: UntaggedValue::Primitive(Primitive::Date(d)),
// ..
// } => Ok(*d),
// Value {
// value: UntaggedValue::Row(_),
// ..
// } => {
// let mut shell_error = ShellError::type_error("date", v.spanned_type_name());
// shell_error.notes.push(
// "Note: you can access columns using dot. eg) $it.column or (ls).column".into(),
// );
// Err(shell_error)
// }
// v => Err(ShellError::type_error("date", v.spanned_type_name())),
// }
// }
// }
impl FromValue for DateTime<FixedOffset> {
fn from_value(v: &Value) -> Result<Self, ShellError> {
match v {
Value::Date { val, .. } => Ok(*val),
v => Err(ShellError::CantConvert("date".into(), v.span()?)),
}
}
}
impl FromValue for Spanned<DateTime<FixedOffset>> {
fn from_value(v: &Value) -> Result<Self, ShellError> {
match v {
Value::Date { val, span } => Ok(Spanned {
item: *val,
span: *span,
}),
v => Err(ShellError::CantConvert("date".into(), v.span()?)),
}
}
}
impl FromValue for Range {
fn from_value(v: &Value) -> Result<Self, ShellError> {
@ -177,31 +177,15 @@ impl FromValue for Spanned<Range> {
}
}
// impl FromValue for Vec<u8> {
// fn from_value(v: &Value) -> Result<Self, ShellError> {
// match v {
// Value {
// value: UntaggedValue::Primitive(Primitive::Binary(b)),
// ..
// } => Ok(b.clone()),
// Value {
// value: UntaggedValue::Primitive(Primitive::String(s)),
// ..
// } => Ok(s.bytes().collect()),
// Value {
// value: UntaggedValue::Row(_),
// ..
// } => {
// let mut shell_error = ShellError::type_error("binary data", v.spanned_type_name());
// shell_error.notes.push(
// "Note: you can access columns using dot. eg) $it.column or (ls).column".into(),
// );
// Err(shell_error)
// }
// v => Err(ShellError::type_error("binary data", v.spanned_type_name())),
// }
// }
// }
impl FromValue for Vec<u8> {
fn from_value(v: &Value) -> Result<Self, ShellError> {
match v {
Value::Binary { val, .. } => Ok(val.clone()),
Value::String { val, .. } => Ok(val.bytes().collect()),
v => Err(ShellError::CantConvert("binary data".into(), v.span()?)),
}
}
}
// impl FromValue for Dictionary {
// fn from_value(v: &Value) -> Result<Self, ShellError> {