forked from extern/nushell
dac32557cd
Fix #9992 I mistakenly messed up https://github.com/nushell/nushell/pull/10118 and this is a cleaned version. # Description * This pr changes the panic to errors while parsing `let`, now user will get the following errors: <img width="395" alt="scr" src="https://github.com/nushell/nushell/assets/1991933/4b39ac14-cd1f-47b3-9490-81009ca42717"> <img width="394" alt="scr" src="https://github.com/nushell/nushell/assets/1991933/71ce33ad-f4d0-4132-828f-9674b9603556"> <img width="440" alt="scr" src="https://github.com/nushell/nushell/assets/1991933/257eab4d-1a72-42db-b09e-f42bef33d2ec"> * `out+err>` is cached by `parse_expression` but not this, which may be a potential problem. * `Commond(None, ..)` remains panic for future bug report because I don't actually know when/how does it happen # User-Facing Changes Nushell won't crash when user typing `let a = 1 err> ...` # Tests + Formatting - `cargo fmt --all -- --check` : OK - `cargo clippy --workspace -- -D warnings -D clippy::unwrap_used` : OK - `cargo test --workspace` : OK - `cargo run -- -c "use std testing; testing run-tests --path crates/nu-std"` : OK # After Submitting None Co-authored-by: Horasal <horsal@horsal.dev>
598 lines
23 KiB
Rust
598 lines
23 KiB
Rust
use std::{
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fmt::Display,
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str::{from_utf8, Utf8Error},
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};
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use crate::{did_you_mean, Span, Type};
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use miette::Diagnostic;
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use serde::{Deserialize, Serialize};
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use thiserror::Error;
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#[derive(Clone, Debug, Error, Diagnostic, Serialize, Deserialize)]
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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(code(nu::parser::extra_tokens), help("Try removing them."))]
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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), help("Usage: {0}"))]
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ExtraPositional(String, #[label = "extra positional argument"] Span),
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#[error("Required positional parameter after optional parameter")]
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#[diagnostic(code(nu::parser::required_after_optional))]
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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))]
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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))]
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Unclosed(String, #[label("unclosed {0}")] Span),
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#[error("Unbalanced delimiter.")]
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#[diagnostic(code(nu::parser::unbalanced_delimiter))]
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Unbalanced(String, String, #[label("unbalanced {0} and {1}")] Span),
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#[error("Parse mismatch during operation.")]
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#[diagnostic(code(nu::parser::parse_mismatch))]
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Expected(&'static str, #[label("expected {0}")] Span),
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#[error("Parse mismatch during operation.")]
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#[diagnostic(code(nu::parser::parse_mismatch_with_full_string_msg))]
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ExpectedWithStringMsg(String, #[label("expected {0}")] Span),
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#[error("Command does not support {0} input.")]
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#[diagnostic(code(nu::parser::input_type_mismatch))]
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InputMismatch(Type, #[label("command doesn't support {0} input")] Span),
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#[error("Command output doesn't match {0}.")]
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#[diagnostic(code(nu::parser::output_type_mismatch))]
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OutputMismatch(Type, #[label("command doesn't output {0}")] Span),
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#[error("Type mismatch during operation.")]
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#[diagnostic(code(nu::parser::type_mismatch))]
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Mismatch(String, String, #[label("expected {0}, found {1}")] Span), // expected, found, span
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#[error("The '&&' operator is not supported in Nushell")]
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#[diagnostic(
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code(nu::parser::shell_andand),
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help("use ';' instead of the shell '&&', or 'and' instead of the boolean '&&'")
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)]
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ShellAndAnd(#[label("instead of '&&', use ';' or 'and'")] Span),
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#[error("The '||' operator is not supported in Nushell")]
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#[diagnostic(
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code(nu::parser::shell_oror),
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help("use 'try' instead of the shell '||', or 'or' instead of the boolean '||'")
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)]
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ShellOrOr(#[label("instead of '||', use 'try' or 'or'")] Span),
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#[error("The '2>' shell operation is 'err>' in Nushell.")]
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#[diagnostic(code(nu::parser::shell_err))]
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ShellErrRedirect(#[label("use 'err>' instead of '2>' in Nushell")] Span),
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#[error("The '2>&1' shell operation is 'out+err>' in Nushell.")]
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#[diagnostic(
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code(nu::parser::shell_outerr),
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help("Nushell redirection will write all of stdout before stderr.")
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)]
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ShellOutErrRedirect(#[label("use 'out+err>' instead of '2>&1' in Nushell")] Span),
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#[error("{0} is not supported on values of type {3}")]
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#[diagnostic(code(nu::parser::unsupported_operation))]
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UnsupportedOperationLHS(
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String,
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#[label = "doesn't support this value"] Span,
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#[label("{3}")] Span,
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Type,
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),
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#[error("{0} is not supported between {3} and {5}.")]
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#[diagnostic(code(nu::parser::unsupported_operation))]
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UnsupportedOperationRHS(
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String,
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#[label = "doesn't support these values"] Span,
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#[label("{3}")] Span,
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Type,
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#[label("{5}")] Span,
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Type,
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),
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#[error("Capture of mutable variable.")]
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#[diagnostic(code(nu::parser::expected_keyword))]
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CaptureOfMutableVar(#[label("capture of mutable variable")] Span),
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#[error("Expected keyword.")]
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#[diagnostic(code(nu::parser::expected_keyword))]
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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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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("Can't create alias to parser keyword.")]
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#[diagnostic(
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code(nu::parser::cant_alias_keyword),
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help("Only the following keywords can be aliased: {0}.")
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)]
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CantAliasKeyword(String, #[label("not supported in alias")] Span),
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#[error("Can't create alias to expression.")]
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#[diagnostic(
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code(nu::parser::cant_alias_expression),
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help("Only command calls can be aliased.")
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)]
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CantAliasExpression(String, #[label("aliasing {0} is not supported")] Span),
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#[error("Unknown operator")]
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#[diagnostic(code(nu::parser::unknown_operator), help("{1}"))]
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UnknownOperator(
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&'static str,
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&'static str,
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#[label("Operator '{0}' not supported")] Span,
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),
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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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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("{0} statement used in pipeline.")]
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#[diagnostic(
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code(nu::parser::unexpected_keyword),
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help(
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"Assigning '{1}' to '{2}' does not produce a value to be piped. If the pipeline result is meant to be assigned to '{2}', use '{0} {2} = ({1} | ...)'."
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)
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)]
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AssignInPipeline(String, String, String, #[label("'{0}' in pipeline")] Span),
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#[error("`{0}` used as variable name.")]
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#[diagnostic(
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code(nu::parser::name_is_builtin_var),
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help(
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"'{0}' is the name of a builtin Nushell variable and cannot be used as a variable name"
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)
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)]
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NameIsBuiltinVar(String, #[label("already a builtin variable")] Span),
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#[error("Incorrect value")]
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#[diagnostic(code(nu::parser::incorrect_value), 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))]
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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))]
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VariableNotFound(DidYouMean, #[label = "variable not found. {0}"] Span),
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#[error("Use $env.{0} instead of ${0}.")]
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#[diagnostic(code(nu::parser::env_var_not_var))]
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EnvVarNotVar(String, #[label = "use $env.{0} instead of ${0}"] Span),
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#[error("Variable name not supported.")]
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#[diagnostic(code(nu::parser::variable_not_valid))]
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VariableNotValid(#[label = "variable name can't contain spaces or quotes"] Span),
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#[error("Alias name not supported.")]
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#[diagnostic(code(nu::parser::variable_not_valid))]
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AliasNotValid(
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#[label = "alias name can't be a number, a filesize, or contain a hash # or caret ^"] Span,
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),
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#[error("Command name not supported.")]
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#[diagnostic(code(nu::parser::variable_not_valid))]
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CommandDefNotValid(
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#[label = "command name can't be a number, a filesize, or contain a hash # or caret ^"]
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Span,
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),
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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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help("module files and their paths must be available before your script is run as parsing occurs before anything is evaluated")
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)]
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ModuleNotFound(#[label = "module not found"] Span),
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#[error("Missing mod.nu file.")]
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#[diagnostic(
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code(nu::parser::module_missing_mod_nu_file),
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help("When importing a directory as a Nushell module, it needs to contain a mod.nu file (can be empty). Alternatively, you can use .nu files in the directory as modules individually.")
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)]
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ModuleMissingModNuFile(#[label = "module directory is missing a mod.nu file"] Span),
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#[error("Cyclical module import.")]
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#[diagnostic(code(nu::parser::cyclical_module_import), help("{0}"))]
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CyclicalModuleImport(String, #[label = "detected cyclical module import"] Span),
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#[error("Can't export {0} named same as the module.")]
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#[diagnostic(
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code(nu::parser::named_as_module),
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help("Module {1} can't export {0} named the same as the module. Either change the module name, or export `{2}` {0}.")
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)]
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NamedAsModule(
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String,
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String,
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String,
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#[label = "can't export from module {1}"] Span,
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),
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#[error("Module already contains 'main' command.")]
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#[diagnostic(
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code(nu::parser::module_double_main),
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help("Tried to add 'main' command to module '{0}' but it has already been added.")
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)]
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ModuleDoubleMain(
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String,
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#[label = "module '{0}' already contains 'main'"] Span,
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),
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#[error("Invalid module file name")]
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#[diagnostic(
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code(nu::parser::invalid_module_file_name),
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help("File {0} resolves to module name {1} which is the same as the parent module. Either rename the file or, save it as 'mod.nu' to define the parent module.")
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)]
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InvalidModuleFileName(
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String,
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String,
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#[label = "submodule can't have the same name as the parent module"] Span,
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),
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#[error("Can't export alias defined as 'main'.")]
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#[diagnostic(
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code(nu::parser::export_main_alias_not_allowed),
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help("Exporting aliases as 'main' is not allowed. Either rename the alias or convert it to a custom command.")
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)]
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ExportMainAliasNotAllowed(#[label = "can't export from module"] Span),
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#[error("Active overlay not found.")]
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#[diagnostic(code(nu::parser::active_overlay_not_found))]
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ActiveOverlayNotFound(#[label = "not an active overlay"] Span),
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#[error("Overlay prefix mismatch.")]
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#[diagnostic(
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code(nu::parser::overlay_prefix_mismatch),
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help("Overlay {0} already exists {1} a prefix. To add it again, do it {1} the --prefix flag.")
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)]
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OverlayPrefixMismatch(
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String,
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String,
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#[label = "already exists {1} a prefix"] Span,
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),
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#[error("Module or overlay not found.")]
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#[diagnostic(
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code(nu::parser::module_or_overlay_not_found),
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help("Requires either an existing overlay, a module, or an import pattern defining a module.")
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)]
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ModuleOrOverlayNotFound(#[label = "not a module or an overlay"] Span),
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#[error("Cannot remove the last overlay.")]
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#[diagnostic(
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code(nu::parser::cant_remove_last_overlay),
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help("At least one overlay must always be active.")
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)]
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CantRemoveLastOverlay(#[label = "this is the last overlay, can't remove it"] Span),
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#[error("Cannot hide default overlay.")]
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#[diagnostic(
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code(nu::parser::cant_hide_default_overlay),
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help("'{0}' is a default overlay. Default overlays cannot be hidden.")
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)]
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CantHideDefaultOverlay(String, #[label = "can't hide overlay"] Span),
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#[error("Cannot add overlay.")]
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#[diagnostic(code(nu::parser::cant_add_overlay_help), help("{0}"))]
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CantAddOverlayHelp(String, #[label = "cannot add this overlay"] Span),
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#[error("Not found.")]
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#[diagnostic(code(nu::parser::not_found))]
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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))]
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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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// 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))]
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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(code(nu::parser::unknown_flag), help("{3}"))]
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UnknownFlag(String, String, #[label = "unknown flag"] Span, String),
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#[error("Unknown type.")]
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#[diagnostic(code(nu::parser::unknown_type))]
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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))]
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MissingFlagParam(String, #[label = "flag missing {0} argument"] Span),
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#[error("Only the last flag in a short flag batch can take an argument.")]
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#[diagnostic(code(nu::parser::only_last_flag_in_batch_can_take_arg))]
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OnlyLastFlagInBatchCanTakeArg(#[label = "only the last flag can take args"] Span),
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#[error("Missing required positional argument.")]
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#[diagnostic(code(nu::parser::missing_positional), 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))]
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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))]
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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))]
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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))]
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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))]
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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))]
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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))]
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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))]
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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))]
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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))]
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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("Default values should be constant expressions.")]
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#[diagnostic(code(nu::parser::non_constant_default_value))]
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NonConstantDefaultValue(#[label = "expected a constant value"] Span),
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#[error("Extra columns.")]
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#[diagnostic(code(nu::parser::extra_columns))]
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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))]
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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))]
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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))]
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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))]
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WrongImportPattern(String, #[label = "{0}"] Span),
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#[error("Export not found.")]
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#[diagnostic(code(nu::parser::export_not_found))]
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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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help("sourced files need to be available before your script is run")
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)]
|
|
SourcedFileNotFound(String, #[label("File not found: {0}")] Span),
|
|
|
|
#[error("File not found")]
|
|
#[diagnostic(
|
|
code(nu::parser::registered_file_not_found),
|
|
help("registered files need to be available before your script is run")
|
|
)]
|
|
RegisteredFileNotFound(String, #[label("File not found: {0}")] Span),
|
|
|
|
#[error("File not found")]
|
|
#[diagnostic(code(nu::parser::file_not_found))]
|
|
FileNotFound(String, #[label("File not found: {0}")] Span),
|
|
|
|
/// Error while trying to read a file
|
|
///
|
|
/// ## Resolution
|
|
///
|
|
/// The error will show the result from a file operation
|
|
#[error("Error trying to read file")]
|
|
#[diagnostic(code(nu::shell::error_reading_file))]
|
|
ReadingFile(String, #[label("{0}")] Span),
|
|
|
|
#[error("Invalid literal")] // <problem> in <entity>.
|
|
#[diagnostic()]
|
|
InvalidLiteral(String, String, #[label("{0} in {1}")] Span),
|
|
|
|
#[error("{0}")]
|
|
#[diagnostic()]
|
|
LabeledError(String, String, #[label("{1}")] Span),
|
|
|
|
#[error("{error}")]
|
|
#[diagnostic(help("{help}"))]
|
|
LabeledErrorWithHelp {
|
|
error: String,
|
|
label: String,
|
|
help: String,
|
|
#[label("{label}")]
|
|
span: Span,
|
|
},
|
|
|
|
#[error("Redirection can not be used with let/mut.")]
|
|
#[diagnostic()]
|
|
RedirectionInLetMut(
|
|
#[label("Not allowed here")] Span,
|
|
#[label("...and here")] Option<Span>,
|
|
),
|
|
}
|
|
|
|
impl ParseError {
|
|
pub fn span(&self) -> Span {
|
|
match self {
|
|
ParseError::ExtraTokens(s) => *s,
|
|
ParseError::ExtraPositional(_, s) => *s,
|
|
ParseError::UnexpectedEof(_, s) => *s,
|
|
ParseError::Unclosed(_, s) => *s,
|
|
ParseError::Unbalanced(_, _, s) => *s,
|
|
ParseError::Expected(_, s) => *s,
|
|
ParseError::ExpectedWithStringMsg(_, s) => *s,
|
|
ParseError::Mismatch(_, _, s) => *s,
|
|
ParseError::UnsupportedOperationLHS(_, _, s, _) => *s,
|
|
ParseError::UnsupportedOperationRHS(_, _, _, _, s, _) => *s,
|
|
ParseError::ExpectedKeyword(_, s) => *s,
|
|
ParseError::UnexpectedKeyword(_, s) => *s,
|
|
ParseError::CantAliasKeyword(_, s) => *s,
|
|
ParseError::CantAliasExpression(_, s) => *s,
|
|
ParseError::BuiltinCommandInPipeline(_, s) => *s,
|
|
ParseError::AssignInPipeline(_, _, _, s) => *s,
|
|
ParseError::NameIsBuiltinVar(_, s) => *s,
|
|
ParseError::CaptureOfMutableVar(s) => *s,
|
|
ParseError::IncorrectValue(_, s, _) => *s,
|
|
ParseError::MultipleRestParams(s) => *s,
|
|
ParseError::VariableNotFound(_, s) => *s,
|
|
ParseError::EnvVarNotVar(_, s) => *s,
|
|
ParseError::VariableNotValid(s) => *s,
|
|
ParseError::AliasNotValid(s) => *s,
|
|
ParseError::CommandDefNotValid(s) => *s,
|
|
ParseError::ModuleNotFound(s) => *s,
|
|
ParseError::ModuleMissingModNuFile(s) => *s,
|
|
ParseError::NamedAsModule(_, _, _, s) => *s,
|
|
ParseError::ModuleDoubleMain(_, s) => *s,
|
|
ParseError::InvalidModuleFileName(_, _, s) => *s,
|
|
ParseError::ExportMainAliasNotAllowed(s) => *s,
|
|
ParseError::CyclicalModuleImport(_, s) => *s,
|
|
ParseError::ModuleOrOverlayNotFound(s) => *s,
|
|
ParseError::ActiveOverlayNotFound(s) => *s,
|
|
ParseError::OverlayPrefixMismatch(_, _, s) => *s,
|
|
ParseError::CantRemoveLastOverlay(s) => *s,
|
|
ParseError::CantHideDefaultOverlay(_, s) => *s,
|
|
ParseError::CantAddOverlayHelp(_, s) => *s,
|
|
ParseError::NotFound(s) => *s,
|
|
ParseError::DuplicateCommandDef(s) => *s,
|
|
ParseError::UnknownCommand(s) => *s,
|
|
ParseError::NonUtf8(s) => *s,
|
|
ParseError::UnknownFlag(_, _, s, _) => *s,
|
|
ParseError::RequiredAfterOptional(_, s) => *s,
|
|
ParseError::UnknownType(s) => *s,
|
|
ParseError::MissingFlagParam(_, s) => *s,
|
|
ParseError::OnlyLastFlagInBatchCanTakeArg(s) => *s,
|
|
ParseError::MissingPositional(_, s, _) => *s,
|
|
ParseError::KeywordMissingArgument(_, _, s) => *s,
|
|
ParseError::MissingType(s) => *s,
|
|
ParseError::TypeMismatch(_, _, s) => *s,
|
|
ParseError::InputMismatch(_, s) => *s,
|
|
ParseError::OutputMismatch(_, s) => *s,
|
|
ParseError::MissingRequiredFlag(_, s) => *s,
|
|
ParseError::IncompleteMathExpression(s) => *s,
|
|
ParseError::UnknownState(_, s) => *s,
|
|
ParseError::InternalError(_, s) => *s,
|
|
ParseError::IncompleteParser(s) => *s,
|
|
ParseError::RestNeedsName(s) => *s,
|
|
ParseError::ParameterMismatchType(_, _, _, s) => *s,
|
|
ParseError::NonConstantDefaultValue(s) => *s,
|
|
ParseError::ExtraColumns(_, s) => *s,
|
|
ParseError::MissingColumns(_, s) => *s,
|
|
ParseError::AssignmentMismatch(_, _, s) => *s,
|
|
ParseError::MissingImportPattern(s) => *s,
|
|
ParseError::WrongImportPattern(_, s) => *s,
|
|
ParseError::ExportNotFound(s) => *s,
|
|
ParseError::SourcedFileNotFound(_, s) => *s,
|
|
ParseError::RegisteredFileNotFound(_, s) => *s,
|
|
ParseError::FileNotFound(_, s) => *s,
|
|
ParseError::ReadingFile(_, s) => *s,
|
|
ParseError::LabeledError(_, _, s) => *s,
|
|
ParseError::ShellAndAnd(s) => *s,
|
|
ParseError::ShellOrOr(s) => *s,
|
|
ParseError::ShellErrRedirect(s) => *s,
|
|
ParseError::ShellOutErrRedirect(s) => *s,
|
|
ParseError::UnknownOperator(_, _, s) => *s,
|
|
ParseError::InvalidLiteral(_, _, s) => *s,
|
|
ParseError::LabeledErrorWithHelp { span: s, .. } => *s,
|
|
ParseError::RedirectionInLetMut(s, _) => *s,
|
|
}
|
|
}
|
|
}
|
|
|
|
#[derive(Clone, Debug, Serialize, Deserialize)]
|
|
pub struct DidYouMean(Option<String>);
|
|
|
|
fn did_you_mean_impl(possibilities_bytes: &[&[u8]], input_bytes: &[u8]) -> Option<String> {
|
|
let input = from_utf8(input_bytes).ok()?;
|
|
let possibilities = possibilities_bytes
|
|
.iter()
|
|
.map(|p| from_utf8(p))
|
|
.collect::<Result<Vec<&str>, Utf8Error>>()
|
|
.ok()?;
|
|
did_you_mean(&possibilities, input)
|
|
}
|
|
impl DidYouMean {
|
|
pub fn new(possibilities_bytes: &[&[u8]], input_bytes: &[u8]) -> DidYouMean {
|
|
DidYouMean(did_you_mean_impl(possibilities_bytes, input_bytes))
|
|
}
|
|
}
|
|
|
|
impl From<Option<String>> for DidYouMean {
|
|
fn from(value: Option<String>) -> Self {
|
|
Self(value)
|
|
}
|
|
}
|
|
|
|
impl Display for DidYouMean {
|
|
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
|
|
if let Some(suggestion) = &self.0 {
|
|
write!(f, "Did you mean '{}'?", suggestion)
|
|
} else {
|
|
write!(f, "")
|
|
}
|
|
}
|
|
}
|