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8be2bbf074
Support for Wasm modules.
Note this implements the standard where the default export is the
instance (not the module). The module will come later with source phase
imports.
```ts
import { add } from "./math.wasm";
console.log(add(1, 2));
```
119 lines
4.2 KiB
Rust
119 lines
4.2 KiB
Rust
// Copyright 2018-2024 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 deno_ast::ParseDiagnostic;
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use deno_core::error::AnyError;
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use deno_graph::source::ResolveError;
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use deno_graph::ModuleError;
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use deno_graph::ModuleGraphError;
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use deno_graph::ModuleLoadError;
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use deno_graph::ResolutionError;
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use import_map::ImportMapError;
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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(_: &ParseDiagnostic) -> &'static str {
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"SyntaxError"
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}
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fn get_module_graph_error_class(err: &ModuleGraphError) -> &'static str {
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use deno_graph::JsrLoadError;
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use deno_graph::NpmLoadError;
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match err {
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ModuleGraphError::ResolutionError(err)
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| ModuleGraphError::TypesResolutionError(err) => {
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get_resolution_error_class(err)
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}
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ModuleGraphError::ModuleError(err) => match err {
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ModuleError::InvalidTypeAssertion { .. } => "SyntaxError",
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ModuleError::ParseErr(_, diagnostic) => get_diagnostic_class(diagnostic),
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ModuleError::WasmParseErr(..) => "SyntaxError",
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ModuleError::UnsupportedMediaType { .. }
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| ModuleError::UnsupportedImportAttributeType { .. } => "TypeError",
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ModuleError::Missing(_, _) | ModuleError::MissingDynamic(_, _) => {
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"NotFound"
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}
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ModuleError::LoadingErr(_, _, err) => match err {
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ModuleLoadError::Loader(err) => get_error_class_name(err.as_ref()),
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ModuleLoadError::HttpsChecksumIntegrity(_)
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| ModuleLoadError::TooManyRedirects => "Error",
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ModuleLoadError::NodeUnknownBuiltinModule(_) => "NotFound",
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ModuleLoadError::Decode(_) => "TypeError",
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ModuleLoadError::Npm(err) => match err {
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NpmLoadError::NotSupportedEnvironment
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| NpmLoadError::PackageReqResolution(_)
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| NpmLoadError::RegistryInfo(_) => "Error",
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NpmLoadError::PackageReqReferenceParse(_) => "TypeError",
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},
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ModuleLoadError::Jsr(err) => match err {
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JsrLoadError::UnsupportedManifestChecksum
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| JsrLoadError::PackageFormat(_) => "TypeError",
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JsrLoadError::ContentLoadExternalSpecifier
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| JsrLoadError::ContentLoad(_)
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| JsrLoadError::ContentChecksumIntegrity(_)
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| JsrLoadError::PackageManifestLoad(_, _)
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| JsrLoadError::PackageVersionManifestChecksumIntegrity(..)
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| JsrLoadError::PackageVersionManifestLoad(_, _)
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| JsrLoadError::RedirectInPackage(_) => "Error",
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JsrLoadError::PackageNotFound(_)
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| JsrLoadError::PackageReqNotFound(_)
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| JsrLoadError::PackageVersionNotFound(_)
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| JsrLoadError::UnknownExport { .. } => "NotFound",
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},
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},
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},
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}
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}
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fn get_resolution_error_class(err: &ResolutionError) -> &'static str {
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match err {
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ResolutionError::ResolverError { error, .. } => {
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use ResolveError::*;
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match error.as_ref() {
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Specifier(_) => "TypeError",
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Other(e) => get_error_class_name(e),
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}
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}
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_ => "TypeError",
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}
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}
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fn get_try_from_int_error_class(_: &std::num::TryFromIntError) -> &'static str {
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"TypeError"
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}
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pub 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::<ParseDiagnostic>()
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.map(get_diagnostic_class)
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})
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.or_else(|| {
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e.downcast_ref::<ModuleGraphError>()
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.map(get_module_graph_error_class)
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})
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.or_else(|| {
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e.downcast_ref::<ResolutionError>()
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.map(get_resolution_error_class)
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})
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.or_else(|| {
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e.downcast_ref::<std::num::TryFromIntError>()
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.map(get_try_from_int_error_class)
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})
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.unwrap_or("Error")
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}
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