mirror of
https://github.com/nushell/nushell
synced 2025-01-01 07:48:53 +00:00
303 lines
12 KiB
Rust
303 lines
12 KiB
Rust
use miette::Diagnostic;
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use nu_protocol::{Span, Type};
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use thiserror::Error;
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#[derive(Clone, Debug, Error, Diagnostic)]
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pub enum ParseError {
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/// The parser encountered unexpected tokens, when the code should have
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/// finished. You should remove these or finish adding what you intended
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/// to add.
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#[error("Extra tokens in code.")]
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#[diagnostic(
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code(nu::parser::extra_tokens),
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url(docsrs),
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help("Try removing them.")
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)]
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ExtraTokens(#[label = "extra tokens"] Span),
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#[error("Extra positional argument.")]
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#[diagnostic(code(nu::parser::extra_positional), url(docsrs), help("Usage: {0}"))]
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ExtraPositional(String, #[label = "extra positional argument"] Span),
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#[error("Require positional parameter after optional parameter")]
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#[diagnostic(code(nu::parser::required_after_optional), url(docsrs))]
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RequiredAfterOptional(
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String,
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#[label = "required parameter {0} after optional parameter"] Span,
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),
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#[error("Unexpected end of code.")]
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#[diagnostic(code(nu::parser::unexpected_eof), url(docsrs))]
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UnexpectedEof(String, #[label("expected closing {0}")] Span),
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#[error("Unclosed delimiter.")]
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#[diagnostic(code(nu::parser::unclosed_delimiter), url(docsrs))]
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Unclosed(String, #[label("unclosed {0}")] Span),
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#[error("Parse mismatch during operation.")]
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#[diagnostic(code(nu::parser::parse_mismatch), url(docsrs))]
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Expected(String, #[label("expected {0}")] Span),
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#[error("Type mismatch during operation.")]
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#[diagnostic(code(nu::parser::type_mismatch), url(docsrs))]
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Mismatch(String, String, #[label("expected {0}, found {1}")] Span), // expected, found, span
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#[error("Types mismatched for operation.")]
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#[diagnostic(
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code(nu::parser::unsupported_operation),
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url(docsrs),
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help("Change {2} or {4} to be the right types and try again.")
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)]
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UnsupportedOperation(
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#[label = "doesn't support these values."] Span,
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#[label("{2}")] Span,
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Type,
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#[label("{4}")] Span,
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Type,
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),
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#[error("Expected keyword.")]
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#[diagnostic(code(nu::parser::expected_keyword), url(docsrs))]
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ExpectedKeyword(String, #[label("expected {0}")] Span),
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#[error("Unexpected keyword.")]
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#[diagnostic(
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code(nu::parser::unexpected_keyword),
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url(docsrs),
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help("'{0}' keyword is allowed only in a module.")
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)]
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UnexpectedKeyword(String, #[label("unexpected {0}")] Span),
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#[error("Statement used in pipeline.")]
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#[diagnostic(
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code(nu::parser::unexpected_keyword),
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url(docsrs),
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help(
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"'{0}' keyword is not allowed in pipeline. Use '{0}' by itself, outside of a pipeline."
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)
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)]
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BuiltinCommandInPipeline(String, #[label("not allowed in pipeline")] Span),
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#[error("Incorrect value")]
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#[diagnostic(code(nu::parser::incorrect_value), url(docsrs), help("{2}"))]
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IncorrectValue(String, #[label("unexpected {0}")] Span, String),
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#[error("Multiple rest params.")]
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#[diagnostic(code(nu::parser::multiple_rest_params), url(docsrs))]
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MultipleRestParams(#[label = "multiple rest params"] Span),
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#[error("Variable not found.")]
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#[diagnostic(code(nu::parser::variable_not_found), url(docsrs))]
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VariableNotFound(#[label = "variable not found"] Span),
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#[error("Variable name not supported.")]
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#[diagnostic(code(nu::parser::variable_not_valid), url(docsrs))]
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VariableNotValid(#[label = "variable name can't contain spaces or quotes"] Span),
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#[error("Module not found.")]
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#[diagnostic(
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code(nu::parser::module_not_found),
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url(docsrs),
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help("module files need to be available before your script is run")
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)]
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ModuleNotFound(#[label = "module not found"] Span),
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#[error("Not found.")]
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#[diagnostic(code(nu::parser::not_found), url(docsrs))]
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NotFound(#[label = "did not find anything under this name"] Span),
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#[error("Duplicate command definition within a block.")]
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#[diagnostic(code(nu::parser::duplicate_command_def), url(docsrs))]
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DuplicateCommandDef(#[label = "defined more than once"] Span),
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#[error("Unknown command.")]
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#[diagnostic(
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code(nu::parser::unknown_command),
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url(docsrs),
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// TODO: actual suggestions like "Did you mean `foo`?"
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)]
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UnknownCommand(#[label = "unknown command"] Span),
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#[error("Non-UTF8 string.")]
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#[diagnostic(code(nu::parser::non_utf8), url(docsrs))]
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NonUtf8(#[label = "non-UTF8 string"] Span),
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#[error("The `{0}` command doesn't have flag `{1}`.")]
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#[diagnostic(
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code(nu::parser::unknown_flag),
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url(docsrs),
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help("use {0} --help for a list of flags")
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)]
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UnknownFlag(String, String, #[label = "unknown flag"] Span),
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#[error("Unknown type.")]
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#[diagnostic(code(nu::parser::unknown_type), url(docsrs))]
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UnknownType(#[label = "unknown type"] Span),
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#[error("Missing flag argument.")]
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#[diagnostic(code(nu::parser::missing_flag_param), url(docsrs))]
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MissingFlagParam(String, #[label = "flag missing {0} argument"] Span),
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#[error("Batches of short flags can't take arguments.")]
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#[diagnostic(code(nu::parser::short_flag_arg_cant_take_arg), url(docsrs))]
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ShortFlagBatchCantTakeArg(#[label = "short flag batches can't take args"] Span),
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#[error("Missing required positional argument.")]
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#[diagnostic(code(nu::parser::missing_positional), url(docsrs), help("Usage: {2}"))]
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MissingPositional(String, #[label("missing {0}")] Span, String),
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#[error("Missing argument to `{1}`.")]
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#[diagnostic(code(nu::parser::keyword_missing_arg), url(docsrs))]
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KeywordMissingArgument(
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String,
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String,
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#[label("missing {0} value that follows {1}")] Span,
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),
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#[error("Missing type.")]
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#[diagnostic(code(nu::parser::missing_type), url(docsrs))]
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MissingType(#[label = "expected type"] Span),
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#[error("Type mismatch.")]
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#[diagnostic(code(nu::parser::type_mismatch), url(docsrs))]
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TypeMismatch(Type, Type, #[label("expected {0:?}, found {1:?}")] Span), // expected, found, span
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#[error("Missing required flag.")]
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#[diagnostic(code(nu::parser::missing_required_flag), url(docsrs))]
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MissingRequiredFlag(String, #[label("missing required flag {0}")] Span),
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#[error("Incomplete math expression.")]
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#[diagnostic(code(nu::parser::incomplete_math_expression), url(docsrs))]
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IncompleteMathExpression(#[label = "incomplete math expression"] Span),
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#[error("Unknown state.")]
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#[diagnostic(code(nu::parser::unknown_state), url(docsrs))]
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UnknownState(String, #[label("{0}")] Span),
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#[error("Internal error.")]
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#[diagnostic(code(nu::parser::unknown_state), url(docsrs))]
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InternalError(String, #[label("{0}")] Span),
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#[error("Parser incomplete.")]
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#[diagnostic(code(nu::parser::parser_incomplete), url(docsrs))]
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IncompleteParser(#[label = "parser support missing for this expression"] Span),
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#[error("Rest parameter needs a name.")]
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#[diagnostic(code(nu::parser::rest_needs_name), url(docsrs))]
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RestNeedsName(#[label = "needs a parameter name"] Span),
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#[error("Parameter not correct type.")]
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#[diagnostic(code(nu::parser::parameter_mismatch_type), url(docsrs))]
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ParameterMismatchType(
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String,
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String,
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String,
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#[label = "parameter {0} needs to be '{1}' instead of '{2}'"] Span,
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),
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#[error("Extra columns.")]
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#[diagnostic(code(nu::parser::extra_columns), url(docsrs))]
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ExtraColumns(
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usize,
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#[label("expected {0} column{}", if *.0 == 1 { "" } else { "s" })] Span,
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),
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#[error("Missing columns.")]
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#[diagnostic(code(nu::parser::missing_columns), url(docsrs))]
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MissingColumns(
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usize,
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#[label("expected {0} column{}", if *.0 == 1 { "" } else { "s" })] Span,
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),
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#[error("{0}")]
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#[diagnostic(code(nu::parser::assignment_mismatch), url(docsrs))]
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AssignmentMismatch(String, String, #[label("{1}")] Span),
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#[error("Missing import pattern.")]
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#[diagnostic(code(nu::parser::missing_import_pattern), url(docsrs))]
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MissingImportPattern(#[label = "needs an import pattern"] Span),
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#[error("Wrong import pattern structure.")]
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#[diagnostic(code(nu::parser::missing_import_pattern), url(docsrs))]
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WrongImportPattern(#[label = "invalid import pattern structure"] Span),
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#[error("Export not found.")]
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#[diagnostic(code(nu::parser::export_not_found), url(docsrs))]
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ExportNotFound(#[label = "could not find imports"] Span),
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#[error("File not found")]
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#[diagnostic(
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code(nu::parser::sourced_file_not_found),
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url(docsrs),
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help("sourced files need to be available before your script is run")
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)]
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SourcedFileNotFound(String, #[label("File not found: {0}")] Span),
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#[error("File not found")]
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#[diagnostic(
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code(nu::parser::registered_file_not_found),
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url(docsrs),
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help("registered files need to be available before your script is run")
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)]
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RegisteredFileNotFound(String, #[label("File not found: {0}")] Span),
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#[error("File not found")]
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#[diagnostic(code(nu::parser::file_not_found), url(docsrs))]
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FileNotFound(String, #[label("File not found: {0}")] Span),
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#[error("{0}")]
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#[diagnostic()]
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LabeledError(String, String, #[label("{1}")] Span),
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}
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impl ParseError {
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pub fn span(&self) -> Span {
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match self {
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ParseError::ExtraTokens(s) => *s,
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ParseError::ExtraPositional(_, s) => *s,
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ParseError::UnexpectedEof(_, s) => *s,
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ParseError::Unclosed(_, s) => *s,
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ParseError::Expected(_, s) => *s,
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ParseError::Mismatch(_, _, s) => *s,
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ParseError::UnsupportedOperation(_, _, _, s, _) => *s,
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ParseError::ExpectedKeyword(_, s) => *s,
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ParseError::UnexpectedKeyword(_, s) => *s,
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ParseError::BuiltinCommandInPipeline(_, s) => *s,
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ParseError::IncorrectValue(_, s, _) => *s,
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ParseError::MultipleRestParams(s) => *s,
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ParseError::VariableNotFound(s) => *s,
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ParseError::VariableNotValid(s) => *s,
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ParseError::ModuleNotFound(s) => *s,
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ParseError::NotFound(s) => *s,
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ParseError::DuplicateCommandDef(s) => *s,
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ParseError::UnknownCommand(s) => *s,
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ParseError::NonUtf8(s) => *s,
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ParseError::UnknownFlag(_, _, s) => *s,
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ParseError::RequiredAfterOptional(_, s) => *s,
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ParseError::UnknownType(s) => *s,
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ParseError::MissingFlagParam(_, s) => *s,
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ParseError::ShortFlagBatchCantTakeArg(s) => *s,
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ParseError::MissingPositional(_, s, _) => *s,
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ParseError::KeywordMissingArgument(_, _, s) => *s,
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ParseError::MissingType(s) => *s,
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ParseError::TypeMismatch(_, _, s) => *s,
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ParseError::MissingRequiredFlag(_, s) => *s,
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ParseError::IncompleteMathExpression(s) => *s,
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ParseError::UnknownState(_, s) => *s,
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ParseError::InternalError(_, s) => *s,
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ParseError::IncompleteParser(s) => *s,
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ParseError::RestNeedsName(s) => *s,
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ParseError::ParameterMismatchType(_, _, _, s) => *s,
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ParseError::ExtraColumns(_, s) => *s,
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ParseError::MissingColumns(_, s) => *s,
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ParseError::AssignmentMismatch(_, _, s) => *s,
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ParseError::MissingImportPattern(s) => *s,
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ParseError::WrongImportPattern(s) => *s,
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ParseError::ExportNotFound(s) => *s,
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ParseError::SourcedFileNotFound(_, s) => *s,
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ParseError::RegisteredFileNotFound(_, s) => *s,
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ParseError::FileNotFound(_, s) => *s,
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ParseError::LabeledError(_, _, s) => *s,
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}
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}
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}
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