forked from extern/nushell
Refactor error make (#10923)
- Replaced `start`/`end` with span. - Fixed standard library. - Add `help` option. - Add a couple more errors for invalid record types. Resolve #10914 # Description # User-Facing Changes - **BREAKING CHANGE:** `error make` now takes in `span` instead of `start`/`end`: ```Nushell error make { msg: "Message" label: { text: "Label text" span: (metadata $var).span } } ``` - `error make` now has a `help` argument for custom error help.
This commit is contained in:
Andrej Kolchin
GitHub
parent
c1738620e3
commit
1a864ea6f4
@ -44,20 +44,15 @@ impl Command for ErrorMake {
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call: &Call,
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_input: PipelineData,
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) -> Result<PipelineData, ShellError> {
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let span = call.head;
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let arg: Value = call.req(engine_state, stack, 0)?;
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let unspanned = call.has_flag("unspanned");
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let throw_error = if unspanned { None } else { Some(span) };
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Err(make_error(&arg, throw_error).unwrap_or_else(|| {
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ShellError::GenericError(
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"Creating error value not supported.".into(),
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"unsupported error format".into(),
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Some(span),
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None,
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Vec::new(),
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)
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}))
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let throw_span = if call.has_flag("unspanned") {
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None
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} else {
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Some(call.head)
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};
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Err(make_other_error(&arg, throw_span))
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}
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fn examples(&self) -> Vec<Example> {
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@ -82,8 +77,13 @@ impl Command for ErrorMake {
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msg: "my custom error message"
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label: {
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text: "my custom label text" # not mandatory unless $.label exists
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start: 123 # not mandatory unless $.label.end is set
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end: 456 # not mandatory unless $.label.start is set
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# optional
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span: {
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# if $.label.span exists, both start and end must be present
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start: 123
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end: 456
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}
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help: "A help string, suggesting a fix to the user" # optional
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}
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}"#,
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result: Some(Value::error(
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@ -91,7 +91,7 @@ impl Command for ErrorMake {
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"my custom error message".to_string(),
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"my custom label text".to_string(),
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Some(Span::new(123, 456)),
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None,
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Some("A help string, suggesting a fix to the user".to_string()),
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Vec::new(),
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),
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Span::unknown(),
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@ -101,13 +101,11 @@ impl Command for ErrorMake {
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description:
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"Create a custom error for a custom command that shows the span of the argument",
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example: r#"def foo [x] {
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let span = (metadata $x).span;
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error make {
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msg: "this is fishy"
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label: {
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text: "fish right here"
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start: $span.start
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end: $span.end
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span: (metadata $x).span
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}
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}
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}"#,
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@ -117,100 +115,153 @@ impl Command for ErrorMake {
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}
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}
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fn make_error(value: &Value, throw_span: Option<Span>) -> Option<ShellError> {
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let span = value.span();
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if let Value::Record { .. } = &value {
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let msg = value.get_data_by_key("msg");
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let label = value.get_data_by_key("label");
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const UNABLE_TO_PARSE: &str = "Unable to parse error format.";
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match (msg, &label) {
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(Some(Value::String { val: message, .. }), Some(label)) => {
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let label_start = label.get_data_by_key("start");
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let label_end = label.get_data_by_key("end");
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let label_text = label.get_data_by_key("text");
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let label_span = Some(label.span());
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match (label_start, label_end, label_text) {
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(
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Some(Value::Int { val: start, .. }),
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Some(Value::Int { val: end, .. }),
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Some(Value::String {
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val: label_text, ..
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}),
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) => {
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if start > end {
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Some(ShellError::GenericError(
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"invalid error format.".into(),
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"`$.label.start` should be smaller than `$.label.end`".into(),
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label_span,
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Some(format!("{} > {}", start, end)),
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Vec::new(),
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))
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} else {
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Some(ShellError::GenericError(
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message,
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label_text,
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Some(Span::new(start as usize, end as usize)),
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None,
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Vec::new(),
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))
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}
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}
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(
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None,
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None,
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Some(Value::String {
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val: label_text, ..
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}),
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) => Some(ShellError::GenericError(
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message,
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label_text,
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fn make_other_error(value: &Value, throw_span: Option<Span>) -> ShellError {
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let value = match value {
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Value::Record { .. } => value,
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_ => {
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return ShellError::GenericError(
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"Creating error value not supported.".into(),
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"unsupported error format, must be a record".into(),
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throw_span,
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None,
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Vec::new(),
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)),
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(_, _, None) => Some(ShellError::GenericError(
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"Unable to parse error format.".into(),
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"missing required member `$.label.text`".into(),
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label_span,
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)
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}
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};
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let msg = match value.get_data_by_key("msg") {
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Some(Value::String { val, .. }) => val,
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Some(_) => {
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return ShellError::GenericError(
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UNABLE_TO_PARSE.into(),
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"`$.msg` has wrong type, must be string".into(),
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Some(value.span()),
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None,
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Vec::new(),
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)),
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(Some(Value::Int { .. }), None, _) => Some(ShellError::GenericError(
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"Unable to parse error format.".into(),
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"missing required member `$.label.end`".into(),
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label_span,
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Some("required because `$.label.start` is set".to_string()),
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)
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}
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None => {
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return ShellError::GenericError(
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UNABLE_TO_PARSE.into(),
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"missing required member `$.msg`".into(),
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Some(value.span()),
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None,
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Vec::new(),
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)),
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(None, Some(Value::Int { .. }), _) => Some(ShellError::GenericError(
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"Unable to parse error format.".into(),
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"missing required member `$.label.start`".into(),
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label_span,
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Some("required because `$.label.end` is set".to_string()),
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Vec::new(),
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)),
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)
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}
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};
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let help = match value.get_data_by_key("help") {
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Some(Value::String { val, .. }) => Some(val),
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_ => None,
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}
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}
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(Some(Value::String { val: message, .. }), None) => Some(ShellError::GenericError(
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message,
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};
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let label = match value.get_data_by_key("label") {
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Some(value) => value,
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None => {
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return ShellError::GenericError(
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msg,
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"originates from here".to_string(),
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throw_span,
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help,
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Vec::new(),
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)
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}
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};
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// remove after a few versions
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if label.get_data_by_key("start").is_some() || label.get_data_by_key("end").is_some() {
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return ShellError::GenericError(
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UNABLE_TO_PARSE.into(),
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"`start` and `end` are deprecated".into(),
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Some(value.span()),
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Some("Use `$.label.span` instead".into()),
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Vec::new(),
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);
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}
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let text = match label.get_data_by_key("text") {
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Some(Value::String { val, .. }) => val,
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Some(_) => {
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return ShellError::GenericError(
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UNABLE_TO_PARSE.into(),
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"`$.label.text` has wrong type, must be string".into(),
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Some(label.span()),
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None,
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Vec::new(),
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)
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}
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None => {
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return ShellError::GenericError(
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UNABLE_TO_PARSE.into(),
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"missing required member `$.label.text`".into(),
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Some(label.span()),
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None,
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Vec::new(),
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)
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}
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};
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let span = match label.get_data_by_key("span") {
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Some(val @ Value::Record { .. }) => val,
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Some(value) => {
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return ShellError::GenericError(
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UNABLE_TO_PARSE.into(),
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"`$.label.span` has wrong type, must be record".into(),
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Some(value.span()),
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None,
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Vec::new(),
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)
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}
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None => return ShellError::GenericError(msg, text, throw_span, None, Vec::new()),
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};
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let span_start = match get_span_sides(&span, "start") {
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Ok(val) => val,
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Err(err) => return err,
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};
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let span_end = match get_span_sides(&span, "end") {
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Ok(val) => val,
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Err(err) => return err,
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};
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if span_start > span_end {
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return ShellError::GenericError(
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"invalid error format.".into(),
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"`$.label.start` should be smaller than `$.label.end`".into(),
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Some(label.span()),
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Some(format!("{} > {}", span_start, span_end)),
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Vec::new(),
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);
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}
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ShellError::GenericError(
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msg,
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text,
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Some(Span::new(span_start as usize, span_end as usize)),
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help,
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Vec::new(),
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)
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}
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fn get_span_sides(span: &Value, side: &str) -> Result<i64, ShellError> {
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match span.get_data_by_key(side) {
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Some(Value::Int { val, .. }) => Ok(val),
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Some(_) => Err(ShellError::GenericError(
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UNABLE_TO_PARSE.into(),
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format!("`$.span.{side}` must be int"),
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Some(span.span()),
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None,
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Vec::new(),
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)),
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(None, _) => Some(ShellError::GenericError(
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"Unable to parse error format.".into(),
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"missing required member `$.msg`".into(),
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Some(span),
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None => Err(ShellError::GenericError(
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UNABLE_TO_PARSE.into(),
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format!("`$.span.{side}` must be present, if span is specified."),
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Some(span.span()),
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None,
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Vec::new(),
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)),
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_ => None,
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}
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} else {
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None
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}
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}
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@ -17,10 +17,25 @@ fn no_span_if_unspanned() {
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#[test]
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fn error_start_bigger_than_end_should_fail() {
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let actual = nu!("error make {msg: foo label: {text: bar start 456 end 123}}");
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let actual = nu!("
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error make {
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msg: foo
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label: {
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text: bar
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span: {start: 456 end: 123}
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}
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}
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");
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assert!(!actual.err.contains("invalid error format"));
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assert!(!actual
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.err
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.contains("`$.label.start` should be smaller than `$.label.end`"));
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}
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#[test]
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fn check_help_line() {
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let actual = nu!("error make {msg:foo help: `Custom help line`}");
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assert!(actual.err.contains("Custom help line"));
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}
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@ -54,13 +54,11 @@ fn filesize_format_auto_metric_false() {
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fn fancy_default_errors() {
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let actual = nu!(nu_repl_code(&[
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r#"def force_error [x] {
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let span = (metadata $x).span;
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error make {
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msg: "oh no!"
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label: {
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text: "here's the error"
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start: $span.start
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end: $span.end
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span: (metadata $x).span
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}
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}
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}"#,
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@ -78,13 +76,11 @@ fn narratable_errors() {
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let actual = nu!(nu_repl_code(&[
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r#"$env.config = { error_style: "plain" }"#,
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r#"def force_error [x] {
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let span = (metadata $x).span;
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error make {
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msg: "oh no!"
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label: {
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text: "here's the error"
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start: $span.start
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end: $span.end
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span: (metadata $x).span
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}
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}
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}"#,
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@ -28,9 +28,8 @@
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# ```
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# def "assert even" [number: int] {
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# assert ($number mod 2 == 0) --error-label {
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# start: (metadata $number).span.start,
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# end: (metadata $number).span.end,
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# text: $"($number) is not an even number",
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# span: (metadata $number).span,
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# }
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# }
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# ```
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@ -40,13 +39,11 @@ export def main [
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--error-label: record # Label for `error make` if you want to create a custom assert
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] {
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if $condition { return }
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let span = (metadata $condition).span
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error make {
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msg: ($message | default "Assertion failed."),
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label: ($error_label | default {
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text: "It is not true.",
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start: $span.start,
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end: $span.end
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span: (metadata $condition).span,
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})
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}
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}
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@ -75,8 +72,7 @@ export def main [
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# ```
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# def "assert not even" [number: int] {
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# assert not ($number mod 2 == 0) --error-label {
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# start: (metadata $number).span.start,
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# end: (metadata $number).span.end,
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# span: (metadata $number).span,
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# text: $"($number) is an even number",
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# }
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# }
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@ -93,8 +89,7 @@ export def not [
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msg: ($message | default "Assertion failed."),
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label: ($error_label | default {
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text: "It is not false.",
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start: $span.start,
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end: $span.end
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span: $span,
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})
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}
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}
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@ -114,8 +109,7 @@ export def error [
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] {
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let error_raised = (try { do $code; false } catch { true })
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main ($error_raised) $message --error-label {
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start: (metadata $code).span.start
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end: (metadata $code).span.end
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span: (metadata $code).span
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text: (
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"There were no error during code execution:\n"
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+ $" (view source $code)"
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@ -134,8 +128,10 @@ export def error [
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# > assert equal 1 2 # fails
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export def equal [left: any, right: any, message?: string] {
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main ($left == $right) $message --error-label {
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span: {
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start: (metadata $left).span.start
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end: (metadata $right).span.end
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}
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text: (
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"These are not equal.\n"
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+ $" Left : '($left | to nuon --raw)'\n"
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@ -155,8 +151,10 @@ export def equal [left: any, right: any, message?: string] {
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# > assert not equal 7 7 # fails
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export def "not equal" [left: any, right: any, message?: string] {
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main ($left != $right) $message --error-label {
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span: {
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start: (metadata $left).span.start
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end: (metadata $right).span.end
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}
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text: $"These are both '($left | to nuon --raw)'."
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}
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}
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@ -172,8 +170,10 @@ export def "not equal" [left: any, right: any, message?: string] {
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# > assert less or equal 1 0 # fails
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export def "less or equal" [left: any, right: any, message?: string] {
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main ($left <= $right) $message --error-label {
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span: {
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start: (metadata $left).span.start
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end: (metadata $right).span.end
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}
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text: (
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"The condition *left <= right* is not satisfied.\n"
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+ $" Left : '($left)'\n"
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@ -192,8 +192,10 @@ export def "less or equal" [left: any, right: any, message?: string] {
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# > assert less 1 1 # fails
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export def less [left: any, right: any, message?: string] {
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main ($left < $right) $message --error-label {
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span: {
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start: (metadata $left).span.start
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end: (metadata $right).span.end
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}
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text: (
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"The condition *left < right* is not satisfied.\n"
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+ $" Left : '($left)'\n"
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@ -212,8 +214,10 @@ export def less [left: any, right: any, message?: string] {
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# > assert greater 2 2 # fails
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export def greater [left: any, right: any, message?: string] {
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main ($left > $right) $message --error-label {
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span: {
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start: (metadata $left).span.start
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end: (metadata $right).span.end
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}
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text: (
|
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"The condition *left > right* is not satisfied.\n"
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+ $" Left : '($left)'\n"
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@ -233,8 +237,10 @@ export def greater [left: any, right: any, message?: string] {
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# > assert greater or equal 1 2 # fails
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export def "greater or equal" [left: any, right: any, message?: string] {
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main ($left >= $right) $message --error-label {
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span: {
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start: (metadata $left).span.start
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end: (metadata $right).span.end
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}
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text: (
|
||||
"The condition *left < right* is not satisfied.\n"
|
||||
+ $" Left : '($left)'\n"
|
||||
@ -254,8 +260,10 @@ alias "core length" = length
|
||||
# > assert length [0] 3 # fails
|
||||
export def length [left: list, right: int, message?: string] {
|
||||
main (($left | core length) == $right) $message --error-label {
|
||||
span: {
|
||||
start: (metadata $left).span.start
|
||||
end: (metadata $right).span.end
|
||||
}
|
||||
text: (
|
||||
"This does not have the correct length:\n"
|
||||
+ $" value : ($left | to nuon --raw)\n"
|
||||
@ -276,8 +284,10 @@ alias "core str contains" = str contains
|
||||
# > assert str contains "arst" "k" # fails
|
||||
export def "str contains" [left: string, right: string, message?: string] {
|
||||
main ($left | core str contains $right) $message --error-label {
|
||||
span: {
|
||||
start: (metadata $left).span.start
|
||||
end: (metadata $right).span.end
|
||||
}
|
||||
text: (
|
||||
$"This does not contain '($right)'.\n"
|
||||
+ $" value: ($left | to nuon --raw)"
|
||||
|
||||
@ -31,7 +31,7 @@ export def --env add [
|
||||
let exp = ($p | path expand)
|
||||
if ($exp | path type) != 'dir' {
|
||||
let span = (metadata $p).span
|
||||
error make {msg: "not a directory", label: {text: "not a directory", start: $span.start, end: $span.end } }
|
||||
error make {msg: "not a directory", label: {text: "not a directory", span: $span } }
|
||||
}
|
||||
$abspaths = ($abspaths | append $exp)
|
||||
}
|
||||
@ -106,8 +106,7 @@ export def --env goto [shell?: int] {
|
||||
msg: $"(ansi red_bold)invalid_shell_index(ansi reset)"
|
||||
label: {
|
||||
text: $"`shell` should be between 0 and (($env.DIRS_LIST | length) - 1)"
|
||||
start: $span.start
|
||||
end: $span.end
|
||||
span: $span
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
@ -109,7 +109,16 @@ export def datetime-diff [
|
||||
if $earlier > $later {
|
||||
let start = (metadata $later).span.start
|
||||
let end = (metadata $earlier).span.end
|
||||
error make {msg: "Incompatible arguments", label: {start:$start, end:$end, text:$"First datetime must be >= second, but was actually ($later - $earlier) less than it."}}
|
||||
error make {
|
||||
msg: "Incompatible arguments",
|
||||
label: {
|
||||
span: {
|
||||
start: $start
|
||||
end: $end
|
||||
}
|
||||
text: $"First datetime must be >= second, but was actually ($later - $earlier) less than it."
|
||||
}
|
||||
}
|
||||
}
|
||||
let from_expanded = ($later | date to-timezone utc | date to-record)
|
||||
let to_expanded = ($earlier | date to-timezone utc | date to-record)
|
||||
|
||||
@ -7,8 +7,7 @@ def throw-error [error: string, msg: string, span: record] {
|
||||
msg: ($error | error-fmt)
|
||||
label: {
|
||||
text: $msg
|
||||
start: $span.start
|
||||
end: $span.end
|
||||
span: $span
|
||||
}
|
||||
}
|
||||
}
|
||||
@ -765,8 +764,7 @@ You can also learn more at (ansi default_italic)(ansi light_cyan_underline)https
|
||||
msg: ("std::help::item_not_found" | error-fmt)
|
||||
label: {
|
||||
text: "item not found"
|
||||
start: $span.start
|
||||
end: $span.end
|
||||
span: $span
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
@ -237,8 +237,7 @@ def log-level-deduction-error [
|
||||
$" Available log levels in $env.LOG_LEVEL:"
|
||||
($env.LOG_LEVEL | to text | lines | each {|it| $" ($it)" } | to text)
|
||||
] | str join "\n")
|
||||
start: $span.start
|
||||
end: $span.end
|
||||
span: $span
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
@ -45,8 +45,7 @@ export def --env "path add" [
|
||||
if ($paths | is-empty) or ($paths | length) == 0 {
|
||||
error make {msg: "Empty input", label: {
|
||||
text: "Provide at least one string or a record",
|
||||
start: $span.start,
|
||||
end: $span.end
|
||||
span: $span
|
||||
}}
|
||||
}
|
||||
|
||||
@ -64,8 +63,7 @@ export def --env "path add" [
|
||||
if null in $paths or ($paths | is-empty) {
|
||||
error make {msg: "Empty input", label: {
|
||||
text: $"Received a record, that does not contain a ($nu.os-info.name) key",
|
||||
start: $span.start,
|
||||
end: $span.end
|
||||
span: $span
|
||||
}}
|
||||
}
|
||||
|
||||
@ -326,8 +324,7 @@ export def repeat [
|
||||
msg: $"(ansi red_bold)invalid_argument(ansi reset)"
|
||||
label: {
|
||||
text: $"n should be a positive integer, found ($n)"
|
||||
start: $span.start
|
||||
end: $span.end
|
||||
span: $span
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
@ -94,8 +94,7 @@ def throw-error [error: record] {
|
||||
msg: $"(ansi red)($error.msg)(ansi reset)"
|
||||
label: {
|
||||
text: ($error.label)
|
||||
start: $error.span.start
|
||||
end: $error.span.end
|
||||
span: $error.span
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
@ -12,9 +12,13 @@ export def xaccess [
|
||||
let input = $in
|
||||
if ($path | is-empty) {
|
||||
let path_span = (metadata $path).span
|
||||
error make {msg: 'Empty path provided'
|
||||
label: {text: 'Use a non-empty list of path steps'
|
||||
start: $path_span.start end: $path_span.end}}
|
||||
error make {
|
||||
msg: 'Empty path provided'
|
||||
label: {
|
||||
text: 'Use a non-empty list of path steps'
|
||||
span: $path_span
|
||||
}
|
||||
}
|
||||
}
|
||||
# In xpath first element in path is applied to root element
|
||||
# this way it is possible to apply first step to root element
|
||||
@ -38,9 +42,13 @@ export def xaccess [
|
||||
},
|
||||
$type => {
|
||||
let step_span = (metadata $step).span
|
||||
error make {msg: $'Incorrect path step type ($type)'
|
||||
label: {text: 'Use a string or int as a step'
|
||||
start: $step_span.start end: $step_span.end}}
|
||||
error make {
|
||||
msg: $'Incorrect path step type ($type)'
|
||||
label: {
|
||||
text: 'Use a string or int as a step'
|
||||
span: $step_span
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
@ -131,9 +139,13 @@ def xupdate-internal [ path: list updater: closure ] {
|
||||
},
|
||||
$type => {
|
||||
let step_span = (metadata $step).span
|
||||
error make {msg: $'Incorrect path step type ($type)'
|
||||
label: {text: 'Use a string or int as a step'
|
||||
start: $step_span.start end: $step_span.end}}
|
||||
error make {
|
||||
msg: $'Incorrect path step type ($type)'
|
||||
label: {
|
||||
text: 'Use a string or int as a step'
|
||||
span: $step_span
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user