mirror of https://github.com/denoland/deno.git
44 lines
1.4 KiB
Rust
44 lines
1.4 KiB
Rust
// Copyright 2018-2021 the Deno authors. All rights reserved. MIT license.
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//! There are many types of errors in Deno:
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//! - AnyError: a generic wrapper that can encapsulate any type of error.
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//! - JsError: a container for the error message and stack trace for exceptions
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//! thrown in JavaScript code. We use this to pretty-print stack traces.
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//! - Diagnostic: these are errors that originate in TypeScript's compiler.
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//! They're similar to JsError, in that they have line numbers. But
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//! Diagnostics are compile-time type errors, whereas JsErrors are runtime
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//! exceptions.
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use crate::ast::DiagnosticBuffer;
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use crate::import_map::ImportMapError;
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use deno_core::error::AnyError;
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fn get_import_map_error_class(_: &ImportMapError) -> &'static str {
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"URIError"
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}
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fn get_diagnostic_class(_: &DiagnosticBuffer) -> &'static str {
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"SyntaxError"
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}
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pub(crate) fn get_error_class_name(e: &AnyError) -> &'static str {
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deno_runtime::errors::get_error_class_name(e)
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.or_else(|| {
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e.downcast_ref::<ImportMapError>()
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.map(get_import_map_error_class)
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})
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.or_else(|| {
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e.downcast_ref::<DiagnosticBuffer>()
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.map(get_diagnostic_class)
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})
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.unwrap_or_else(|| {
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panic!(
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"Error '{}' contains boxed error of unknown type:{}",
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e,
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e.chain()
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.map(|e| format!("\n {:?}", e))
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.collect::<String>()
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);
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})
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}
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