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denoland-deno/cli/errors.rs

110 lines
3.9 KiB
Rust

// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
//! There are many types of errors in Deno:
//! - AnyError: a generic wrapper that can encapsulate any type of error.
//! - JsError: a container for the error message and stack trace for exceptions
//! thrown in JavaScript code. We use this to pretty-print stack traces.
//! - Diagnostic: these are errors that originate in TypeScript's compiler.
//! They're similar to JsError, in that they have line numbers. But
//! Diagnostics are compile-time type errors, whereas JsErrors are runtime
//! exceptions.
use deno_ast::ParseDiagnostic;
use deno_core::error::AnyError;
use deno_graph::source::ResolveError;
use deno_graph::ModuleError;
use deno_graph::ModuleGraphError;
use deno_graph::ModuleLoadError;
use deno_graph::ResolutionError;
use import_map::ImportMapError;
fn get_import_map_error_class(_: &ImportMapError) -> &'static str {
"URIError"
}
fn get_diagnostic_class(_: &ParseDiagnostic) -> &'static str {
"SyntaxError"
}
fn get_module_graph_error_class(err: &ModuleGraphError) -> &'static str {
use deno_graph::JsrLoadError;
use deno_graph::NpmLoadError;
match err {
ModuleGraphError::ResolutionError(err)
| ModuleGraphError::TypesResolutionError(err) => {
get_resolution_error_class(err)
}
ModuleGraphError::ModuleError(err) => match err {
ModuleError::InvalidTypeAssertion { .. } => "SyntaxError",
ModuleError::ParseErr(_, diagnostic) => get_diagnostic_class(diagnostic),
ModuleError::UnsupportedMediaType { .. }
| ModuleError::UnsupportedImportAttributeType { .. } => "TypeError",
ModuleError::Missing(_, _) | ModuleError::MissingDynamic(_, _) => {
"NotFound"
}
ModuleError::LoadingErr(_, _, err) => match err {
ModuleLoadError::Loader(err) => get_error_class_name(err.as_ref()),
ModuleLoadError::HttpsChecksumIntegrity(_)
| ModuleLoadError::TooManyRedirects => "Error",
ModuleLoadError::NodeUnknownBuiltinModule(_) => "NotFound",
ModuleLoadError::Decode(_) => "TypeError",
ModuleLoadError::Npm(err) => match err {
NpmLoadError::NotSupportedEnvironment
| NpmLoadError::PackageReqResolution(_)
| NpmLoadError::RegistryInfo(_) => "Error",
NpmLoadError::PackageReqReferenceParse(_) => "TypeError",
},
ModuleLoadError::Jsr(err) => match err {
JsrLoadError::UnsupportedManifestChecksum
| JsrLoadError::PackageFormat(_) => "TypeError",
JsrLoadError::ContentLoadExternalSpecifier
| JsrLoadError::ContentLoad(_)
| JsrLoadError::ContentChecksumIntegrity(_)
| JsrLoadError::PackageManifestLoad(_, _)
| JsrLoadError::PackageVersionManifestChecksumIntegrity(..)
| JsrLoadError::PackageVersionManifestLoad(_, _)
| JsrLoadError::RedirectInPackage(_) => "Error",
JsrLoadError::PackageNotFound(_)
| JsrLoadError::PackageReqNotFound(_)
| JsrLoadError::PackageVersionNotFound(_)
| JsrLoadError::UnknownExport { .. } => "NotFound",
},
},
},
}
}
fn get_resolution_error_class(err: &ResolutionError) -> &'static str {
match err {
ResolutionError::ResolverError { error, .. } => {
use ResolveError::*;
match error.as_ref() {
Specifier(_) => "TypeError",
Other(e) => get_error_class_name(e),
}
}
_ => "TypeError",
}
}
pub fn get_error_class_name(e: &AnyError) -> &'static str {
deno_runtime::errors::get_error_class_name(e)
.or_else(|| {
e.downcast_ref::<ImportMapError>()
.map(get_import_map_error_class)
})
.or_else(|| {
e.downcast_ref::<ParseDiagnostic>()
.map(get_diagnostic_class)
})
.or_else(|| {
e.downcast_ref::<ModuleGraphError>()
.map(get_module_graph_error_class)
})
.or_else(|| {
e.downcast_ref::<ResolutionError>()
.map(get_resolution_error_class)
})
.unwrap_or("Error")
}