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Expose errors early when possible

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This commit is contained in:
JT 2021-10-12 07:45:31 +13:00
parent 020143d050
commit 38bc394a12
10 changed files with 167 additions and 140 deletions
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2
crates/nu-command/src/core_commands/if_.rs
View File

@ -61,7 +61,7 @@ impl Command for If {
Ok(Value::Nothing { span })
}
}
_ => Err(ShellError::CantConvert("bool".into(), result.span())),
_ => Err(ShellError::CantConvert("bool".into(), result.span()?)),
}
}
}

2
crates/nu-command/src/filters/each.rs
View File

@ -67,7 +67,7 @@ impl Command for Each {
match input {
Value::Range { val, .. } => Ok(Value::Stream {
stream: val
.into_iter()
.into_range_iter()?
.enumerate()
.map(move |(idx, x)| {
let engine_state = context.engine_state.borrow();

2
crates/nu-command/src/formats/from/json.rs
View File

@ -71,7 +71,7 @@ impl Command for FromJson {
call: &Call,
input: Value,
) -> Result<nu_protocol::Value, ShellError> {
let span = input.span();
let span = input.span()?;
let mut string_input = input.collect_string();
string_input.push('\n');

8
crates/nu-command/src/strings/split/chars.rs
View File

@ -68,8 +68,9 @@ fn split_chars(call: &Call, input: Value) -> Result<nu_protocol::Value, nu_proto
}
fn split_chars_helper(v: &Value, name: Span) -> Vec<Value> {
match v.span() {
Ok(v_span) => {
if let Ok(s) = v.as_string() {
let v_span = v.span();
s.chars()
.collect::<Vec<_>>()
.into_iter()
@ -83,11 +84,14 @@ fn split_chars_helper(v: &Value, name: Span) -> Vec<Value> {
error: ShellError::PipelineMismatch {
expected: Type::String,
expected_span: name,
origin: v.span(),
origin: v_span,
},
}]
}
}
Err(error) => vec![Value::Error { error }],
}
}
#[cfg(test)]
mod test {

7
crates/nu-command/src/strings/split/column.rs
View File

@ -109,12 +109,15 @@ fn split_column_helper(
span: head,
}
} else {
Value::Error {
match v.span() {
Ok(span) => Value::Error {
error: ShellError::PipelineMismatch {
expected: Type::String,
expected_span: head,
origin: v.span(),
origin: span,
},
},
Err(error) => Value::Error { error },
}
}
}

9
crates/nu-command/src/strings/split/row.rs
View File

@ -48,6 +48,8 @@ fn split_row(
}
fn split_row_helper(v: &Value, separator: &Spanned<String>, name: Span) -> Vec<Value> {
match v.span() {
Ok(v_span) => {
if let Ok(s) = v.as_string() {
let splitter = separator.item.replace("\\n", "\n");
s.split(&splitter)
@ -55,7 +57,7 @@ fn split_row_helper(v: &Value, separator: &Spanned<String>, name: Span) -> Vec<V
if s.trim() != "" {
Some(Value::String {
val: s.into(),
span: v.span(),
span: v_span,
})
} else {
None
@ -67,11 +69,14 @@ fn split_row_helper(v: &Value, separator: &Spanned<String>, name: Span) -> Vec<V
error: ShellError::PipelineMismatch {
expected: Type::String,
expected_span: name,
origin: v.span(),
origin: v_span,
},
}]
}
}
Err(error) => vec![Value::Error { error }],
}
}
// #[cfg(test)]
// mod tests {

2
crates/nu-engine/src/eval.rs
View File

@ -45,7 +45,7 @@ fn eval_call(context: &EvaluationContext, call: &Call, input: Value) -> Result<V
}
let span = if let Some(rest_item) = rest_items.first() {
rest_item.span()
rest_item.span()?
} else {
Span::unknown()
};

22
crates/nu-engine/src/from_value.rs
View File

@ -33,7 +33,7 @@ impl FromValue for Spanned<i64> {
span: *span,
}),
v => Err(ShellError::CantConvert("integer".into(), v.span())),
v => Err(ShellError::CantConvert("integer".into(), v.span()?)),
}
}
}
@ -51,7 +51,7 @@ impl FromValue for i64 {
*val as i64,
),
v => Err(ShellError::CantConvert("integer".into(), v.span())),
v => Err(ShellError::CantConvert("integer".into(), v.span()?)),
}
}
}
@ -69,7 +69,7 @@ impl FromValue for Spanned<f64> {
span: *span,
}),
v => Err(ShellError::CantConvert("float".into(), v.span())),
v => Err(ShellError::CantConvert("float".into(), v.span()?)),
}
}
}
@ -79,7 +79,7 @@ impl FromValue for f64 {
match v {
Value::Float { val, .. } => Ok(*val),
Value::Int { val, .. } => Ok(*val as f64),
v => Err(ShellError::CantConvert("float".into(), v.span())),
v => Err(ShellError::CantConvert("float".into(), v.span()?)),
}
}
}
@ -95,7 +95,7 @@ impl FromValue for Spanned<String> {
fn from_value(v: &Value) -> Result<Self, ShellError> {
Ok(Spanned {
item: v.clone().into_string(),
span: v.span(),
span: v.span()?,
})
}
}
@ -115,7 +115,7 @@ impl FromValue for ColumnPath {
impl FromValue for CellPath {
fn from_value(v: &Value) -> Result<Self, ShellError> {
let span = v.span();
let span = v.span()?;
match v {
Value::CellPath { val, .. } => Ok(val.clone()),
Value::String { val, .. } => Ok(CellPath {
@ -130,7 +130,7 @@ impl FromValue for CellPath {
span,
}],
}),
v => Err(ShellError::CantConvert("cell path".into(), v.span())),
_ => Err(ShellError::CantConvert("cell path".into(), span)),
}
}
}
@ -139,7 +139,7 @@ impl FromValue for bool {
fn from_value(v: &Value) -> Result<Self, ShellError> {
match v {
Value::Bool { val, .. } => Ok(*val),
v => Err(ShellError::CantConvert("bool".into(), v.span())),
v => Err(ShellError::CantConvert("bool".into(), v.span()?)),
}
}
}
@ -151,7 +151,7 @@ impl FromValue for Spanned<bool> {
item: *val,
span: *span,
}),
v => Err(ShellError::CantConvert("bool".into(), v.span())),
v => Err(ShellError::CantConvert("bool".into(), v.span()?)),
}
}
}
@ -182,7 +182,7 @@ impl FromValue for Range {
fn from_value(v: &Value) -> Result<Self, ShellError> {
match v {
Value::Range { val, .. } => Ok((**val).clone()),
v => Err(ShellError::CantConvert("range".into(), v.span())),
v => Err(ShellError::CantConvert("range".into(), v.span()?)),
}
}
}
@ -194,7 +194,7 @@ impl FromValue for Spanned<Range> {
item: (**val).clone(),
span: *span,
}),
v => Err(ShellError::CantConvert("range".into(), v.span())),
v => Err(ShellError::CantConvert("range".into(), v.span()?)),
}
}
}

133
crates/nu-protocol/src/value/mod.rs
View File

@ -90,29 +90,29 @@ impl Value {
pub fn as_string(&self) -> Result<String, ShellError> {
match self {
Value::String { val, .. } => Ok(val.to_string()),
_ => Err(ShellError::CantConvert("string".into(), self.span())),
_ => Err(ShellError::CantConvert("string".into(), self.span()?)),
}
}
/// Get the span for the current value
pub fn span(&self) -> Span {
pub fn span(&self) -> Result<Span, ShellError> {
match self {
Value::Error { .. } => Span::unknown(),
Value::Bool { span, .. } => *span,
Value::Int { span, .. } => *span,
Value::Float { span, .. } => *span,
Value::Filesize { span, .. } => *span,
Value::Duration { span, .. } => *span,
Value::Date { span, .. } => *span,
Value::Range { span, .. } => *span,
Value::String { span, .. } => *span,
Value::Record { span, .. } => *span,
Value::List { span, .. } => *span,
Value::Block { span, .. } => *span,
Value::Stream { span, .. } => *span,
Value::Nothing { span, .. } => *span,
Value::Binary { span, .. } => *span,
Value::CellPath { span, .. } => *span,
Value::Error { error } => Err(error.clone()),
Value::Bool { span, .. } => Ok(*span),
Value::Int { span, .. } => Ok(*span),
Value::Float { span, .. } => Ok(*span),
Value::Filesize { span, .. } => Ok(*span),
Value::Duration { span, .. } => Ok(*span),
Value::Date { span, .. } => Ok(*span),
Value::Range { span, .. } => Ok(*span),
Value::String { span, .. } => Ok(*span),
Value::Record { span, .. } => Ok(*span),
Value::List { span, .. } => Ok(*span),
Value::Block { span, .. } => Ok(*span),
Value::Stream { span, .. } => Ok(*span),
Value::Nothing { span, .. } => Ok(*span),
Value::Binary { span, .. } => Ok(*span),
Value::CellPath { span, .. } => Ok(*span),
}
}
@ -173,15 +173,17 @@ impl Value {
Value::Filesize { val, .. } => format_filesize(val),
Value::Duration { val, .. } => format_duration(val),
Value::Date { val, .. } => HumanTime::from(val).to_string(),
Value::Range { val, .. } => {
Value::Range { val, .. } => match val.into_range_iter() {
Ok(iter) => {
format!(
"range: [{}]",
val.into_iter()
.map(|x| x.into_string())
iter.map(|x| x.into_string())
.collect::<Vec<String>>()
.join(", ")
)
}
Err(error) => format!("{:?}", error),
},
Value::String { val, .. } => val,
Value::Stream { stream, .. } => stream.into_string(),
Value::List { vals: val, .. } => format!(
@ -215,11 +217,15 @@ impl Value {
Value::Filesize { val, .. } => format!("{} bytes", val),
Value::Duration { val, .. } => format!("{} ns", val),
Value::Date { val, .. } => format!("{:?}", val),
Value::Range { val, .. } => val
.into_iter()
Value::Range { val, .. } => match val.into_range_iter() {
Ok(iter) => iter
.map(|x| x.into_string())
.collect::<Vec<String>>()
.join(", "),
Err(error) => {
format!("{:?}", error)
}
},
Value::String { val, .. } => val,
Value::Stream { stream, .. } => stream.collect_string(),
Value::List { vals: val, .. } => val
@ -380,7 +386,7 @@ impl Value {
span,
}),
Value::Range { val, .. } => Ok(Value::Stream {
stream: val.into_iter().map(f).into_value_stream(),
stream: val.into_range_iter()?.map(f).into_value_stream(),
span,
}),
v => {
@ -409,10 +415,13 @@ impl Value {
stream: stream.map(f).flatten().into_value_stream(),
span,
},
Value::Range { val, .. } => Value::Stream {
stream: val.into_iter().map(f).flatten().into_value_stream(),
Value::Range { val, .. } => match val.into_range_iter() {
Ok(iter) => Value::Stream {
stream: iter.map(f).flatten().into_value_stream(),
span,
},
Err(error) => Value::Error { error },
},
v => Value::Stream {
stream: f(v).into_iter().into_value_stream(),
span,
@ -506,7 +515,7 @@ impl PartialEq for Value {
impl Value {
pub fn add(&self, op: Span, rhs: &Value) -> Result<Value, ShellError> {
let span = span(&[self.span(), rhs.span()]);
let span = span(&[self.span()?, rhs.span()?]);
match (self, rhs) {
(Value::Int { val: lhs, .. }, Value::Int { val: rhs, .. }) => Ok(Value::Int {
@ -545,14 +554,14 @@ impl Value {
_ => Err(ShellError::OperatorMismatch {
op_span: op,
lhs_ty: self.get_type(),
lhs_span: self.span(),
lhs_span: self.span()?,
rhs_ty: rhs.get_type(),
rhs_span: rhs.span(),
rhs_span: rhs.span()?,
}),
}
}
pub fn sub(&self, op: Span, rhs: &Value) -> Result<Value, ShellError> {
let span = span(&[self.span(), rhs.span()]);
let span = span(&[self.span()?, rhs.span()?]);
match (self, rhs) {
(Value::Int { val: lhs, .. }, Value::Int { val: rhs, .. }) => Ok(Value::Int {
@ -587,14 +596,14 @@ impl Value {
_ => Err(ShellError::OperatorMismatch {
op_span: op,
lhs_ty: self.get_type(),
lhs_span: self.span(),
lhs_span: self.span()?,
rhs_ty: rhs.get_type(),
rhs_span: rhs.span(),
rhs_span: rhs.span()?,
}),
}
}
pub fn mul(&self, op: Span, rhs: &Value) -> Result<Value, ShellError> {
let span = span(&[self.span(), rhs.span()]);
let span = span(&[self.span()?, rhs.span()?]);
match (self, rhs) {
(Value::Int { val: lhs, .. }, Value::Int { val: rhs, .. }) => Ok(Value::Int {
@ -617,14 +626,14 @@ impl Value {
_ => Err(ShellError::OperatorMismatch {
op_span: op,
lhs_ty: self.get_type(),
lhs_span: self.span(),
lhs_span: self.span()?,
rhs_ty: rhs.get_type(),
rhs_span: rhs.span(),
rhs_span: rhs.span()?,
}),
}
}
pub fn div(&self, op: Span, rhs: &Value) -> Result<Value, ShellError> {
let span = span(&[self.span(), rhs.span()]);
let span = span(&[self.span()?, rhs.span()?]);
match (self, rhs) {
(Value::Int { val: lhs, .. }, Value::Int { val: rhs, .. }) => {
@ -678,14 +687,14 @@ impl Value {
_ => Err(ShellError::OperatorMismatch {
op_span: op,
lhs_ty: self.get_type(),
lhs_span: self.span(),
lhs_span: self.span()?,
rhs_ty: rhs.get_type(),
rhs_span: rhs.span(),
rhs_span: rhs.span()?,
}),
}
}
pub fn lt(&self, op: Span, rhs: &Value) -> Result<Value, ShellError> {
let span = span(&[self.span(), rhs.span()]);
let span = span(&[self.span()?, rhs.span()?]);
match self.partial_cmp(rhs) {
Some(ordering) => Ok(Value::Bool {
@ -695,14 +704,14 @@ impl Value {
None => Err(ShellError::OperatorMismatch {
op_span: op,
lhs_ty: self.get_type(),
lhs_span: self.span(),
lhs_span: self.span()?,
rhs_ty: rhs.get_type(),
rhs_span: rhs.span(),
rhs_span: rhs.span()?,
}),
}
}
pub fn lte(&self, op: Span, rhs: &Value) -> Result<Value, ShellError> {
let span = span(&[self.span(), rhs.span()]);
let span = span(&[self.span()?, rhs.span()?]);
match self.partial_cmp(rhs) {
Some(ordering) => Ok(Value::Bool {
@ -712,14 +721,14 @@ impl Value {
None => Err(ShellError::OperatorMismatch {
op_span: op,
lhs_ty: self.get_type(),
lhs_span: self.span(),
lhs_span: self.span()?,
rhs_ty: rhs.get_type(),
rhs_span: rhs.span(),
rhs_span: rhs.span()?,
}),
}
}
pub fn gt(&self, op: Span, rhs: &Value) -> Result<Value, ShellError> {
let span = span(&[self.span(), rhs.span()]);
let span = span(&[self.span()?, rhs.span()?]);
match self.partial_cmp(rhs) {
Some(ordering) => Ok(Value::Bool {
@ -729,14 +738,14 @@ impl Value {
None => Err(ShellError::OperatorMismatch {
op_span: op,
lhs_ty: self.get_type(),
lhs_span: self.span(),
lhs_span: self.span()?,
rhs_ty: rhs.get_type(),
rhs_span: rhs.span(),
rhs_span: rhs.span()?,
}),
}
}
pub fn gte(&self, op: Span, rhs: &Value) -> Result<Value, ShellError> {
let span = span(&[self.span(), rhs.span()]);
let span = span(&[self.span()?, rhs.span()?]);
match self.partial_cmp(rhs) {
Some(ordering) => Ok(Value::Bool {
@ -746,14 +755,14 @@ impl Value {
None => Err(ShellError::OperatorMismatch {
op_span: op,
lhs_ty: self.get_type(),
lhs_span: self.span(),
lhs_span: self.span()?,
rhs_ty: rhs.get_type(),
rhs_span: rhs.span(),
rhs_span: rhs.span()?,
}),
}
}
pub fn eq(&self, op: Span, rhs: &Value) -> Result<Value, ShellError> {
let span = span(&[self.span(), rhs.span()]);
let span = span(&[self.span()?, rhs.span()?]);
match self.partial_cmp(rhs) {
Some(ordering) => Ok(Value::Bool {
@ -763,14 +772,14 @@ impl Value {
None => Err(ShellError::OperatorMismatch {
op_span: op,
lhs_ty: self.get_type(),
lhs_span: self.span(),
lhs_span: self.span()?,
rhs_ty: rhs.get_type(),
rhs_span: rhs.span(),
rhs_span: rhs.span()?,
}),
}
}
pub fn ne(&self, op: Span, rhs: &Value) -> Result<Value, ShellError> {
let span = span(&[self.span(), rhs.span()]);
let span = span(&[self.span()?, rhs.span()?]);
match self.partial_cmp(rhs) {
Some(ordering) => Ok(Value::Bool {
@ -780,15 +789,15 @@ impl Value {
None => Err(ShellError::OperatorMismatch {
op_span: op,
lhs_ty: self.get_type(),
lhs_span: self.span(),
lhs_span: self.span()?,
rhs_ty: rhs.get_type(),
rhs_span: rhs.span(),
rhs_span: rhs.span()?,
}),
}
}
pub fn r#in(&self, op: Span, rhs: &Value) -> Result<Value, ShellError> {
let span = span(&[self.span(), rhs.span()]);
let span = span(&[self.span()?, rhs.span()?]);
match (self, rhs) {
(lhs, Value::Range { val: rhs, .. }) => Ok(Value::Bool {
@ -814,15 +823,15 @@ impl Value {
_ => Err(ShellError::OperatorMismatch {
op_span: op,
lhs_ty: self.get_type(),
lhs_span: self.span(),
lhs_span: self.span()?,
rhs_ty: rhs.get_type(),
rhs_span: rhs.span(),
rhs_span: rhs.span()?,
}),
}
}
pub fn not_in(&self, op: Span, rhs: &Value) -> Result<Value, ShellError> {
let span = span(&[self.span(), rhs.span()]);
let span = span(&[self.span()?, rhs.span()?]);
match (self, rhs) {
(lhs, Value::Range { val: rhs, .. }) => Ok(Value::Bool {
@ -848,9 +857,9 @@ impl Value {
_ => Err(ShellError::OperatorMismatch {
op_span: op,
lhs_ty: self.get_type(),
lhs_span: self.span(),
lhs_span: self.span()?,
rhs_ty: rhs.get_type(),
rhs_span: rhs.span(),
rhs_span: rhs.span()?,
}),
}
}

24
crates/nu-protocol/src/value/range.rs
View File

@ -122,20 +122,26 @@ impl Range {
(_, _) => false,
}
}
}
impl IntoIterator for Range {
type Item = Value;
pub fn into_range_iter(self) -> Result<RangeIterator, ShellError> {
let span = self.from.span()?;
type IntoIter = RangeIterator;
fn into_iter(self) -> Self::IntoIter {
let span = self.from.span();
RangeIterator::new(self, span)
Ok(RangeIterator::new(self, span))
}
}
// impl IntoIterator for Range {
// type Item = Value;
// type IntoIter = RangeIterator;
// fn into_iter(self) -> Self::IntoIter {
// let span = self.from.span();
// RangeIterator::new(self, span)
// }
// }
pub struct RangeIterator {
curr: Value,
end: Value,