4775430471

Committed 23 Apr 2023 12:22AM UTC coverage: 90.827%. Remained the same

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push

github

Committed by GitHub

Commit Message

Fix formatting (#142)

Run Details

604 of 665 relevant lines covered (90.83%)

13.59 hits per line

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46.88

/wasm/lib/src/wasmer_locator.dart

// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

import 'dart:ffi';
import 'dart:io';

/// Attempts to locate the Wasmer dynamic library.
///
/// Throws [WasmLocatorError] if the dynamic library could not be found.
DynamicLibrary loadWasmerDynamicLibrary() {
  String locate(String libName) {
    final dir = '$_wasmToolDir$libName';
    final value = _packageRootUri(Platform.script.resolve('./')) ??
        _packageRootUri(Directory.current.uri);
    if (value != null) {
      return value.resolve(dir).toFilePath();
    } else {
      throw WasmLocatorError(
        'Wasm library not found. Did you run `$invocationString`?',
      );
    }
  }

  if (Platform.isIOS) {
    return DynamicLibrary.process();
  } else if (Platform.isMacOS) {
    return DynamicLibrary.open(locate(appleLib));
  } else if (Platform.isWindows) {
    return DynamicLibrary.open(locate(windowsLib));
  } else if (Platform.isLinux) {
    return DynamicLibrary.open(locate(linuxLib));
  } else if (Platform.isAndroid) {
    return DynamicLibrary.open(linuxLib);
  } else if (Platform.isFuchsia) {
    throw WasmLocatorError(
      'Wasm is currently not supported on Fuchsia.',
    );
  } else {
    throw WasmLocatorError(
      'Wasm is currently not supported on this platform.',
    );
  }
}

/// This error is thrown when the dynamic library could not be found.
class WasmLocatorError extends Error {
  final String message;

  WasmLocatorError(
    this.message,
  );

  @override
  String toString() => 'WasmLocatorError: $message';
}

/// The command that can be used to set up this package.
const invocationString = 'dart run wasm:setup';

/// The expected name of the Wasmer library when compiled for Apple devices.
const appleLib = 'libwasmer.dylib';

/// The expected name of the Wasmer library when compiled for Linux devices.
const linuxLib = 'libwasmer.so';

/// The expected name of the Wasmer library when compiled for Windows devices.
const windowsLib = 'wasmer.dll';

/// Returns the uri representing the target output directory of generated
/// dynamic libraries.
Uri libBuildOutDir(Uri root) {
  final pkgRoot = _packageRootUri(root);
  if (pkgRoot == null) {
    throw ArgumentError('Could not find "$_pkgConfigFile" within "$root".');
  }
  return pkgRoot.resolve(_wasmToolDir);
}

const _wasmToolDir = '.dart_tool/wasm/';

const _pkgConfigFile = '.dart_tool/package_config.json';

Uri? _packageRootUri(Uri root) {
  do {
    if (FileSystemEntity.isFileSync(
      root.resolve(_pkgConfigFile).toFilePath(),
    )) {
      return root;
    }
  } while (root != (root = root.resolve('..')));
  return null;
}

1	// Copyright (c) 2020, the Dart project authors. Please see the AUTHORS file
2	// for details. All rights reserved. Use of this source code is governed by a
3	// BSD-style license that can be found in the LICENSE file.
4
5	import 'dart:ffi';
6	import 'dart:io';
7
8	/// Attempts to locate the Wasmer dynamic library.
9	///
10	/// Throws [WasmLocatorError] if the dynamic library could not be found.
11	DynamicLibrary loadWasmerDynamicLibrary() {	16✔
12	String locate(String libName) {	16✔
13	final dir = '$_wasmToolDir$libName';	16✔
14	final value = _packageRootUri(Platform.script.resolve('./')) ??	48✔
15	_packageRootUri(Directory.current.uri);	48✔
16	if (value != null) {
17	return value.resolve(dir).toFilePath();	32✔
18	} else {
19	throw WasmLocatorError(	×
20	'Wasm library not found. Did you run `$invocationString`?',	×
21	);
22	}
23	}
24
25	if (Platform.isIOS) {	16✔
26	return DynamicLibrary.process();	×
27	} else if (Platform.isMacOS) {	16✔
28	return DynamicLibrary.open(locate(appleLib));	×
29	} else if (Platform.isWindows) {	16✔
30	return DynamicLibrary.open(locate(windowsLib));	×
31	} else if (Platform.isLinux) {	16✔
32	return DynamicLibrary.open(locate(linuxLib));	32✔
33	} else if (Platform.isAndroid) {	×
34	return DynamicLibrary.open(linuxLib);	×
35	} else if (Platform.isFuchsia) {	×
36	throw WasmLocatorError(	×
37	'Wasm is currently not supported on Fuchsia.',
38	);
39	} else {
40	throw WasmLocatorError(	×
41	'Wasm is currently not supported on this platform.',
42	);
43	}
44	}
45
46	/// This error is thrown when the dynamic library could not be found.
47	class WasmLocatorError extends Error {
48	final String message;
49
50	WasmLocatorError(	×
51	this.message,
52	);
53
54	@override	×
55	String toString() => 'WasmLocatorError: $message';	×
56	}
57
58	/// The command that can be used to set up this package.
59	const invocationString = 'dart run wasm:setup';
60
61	/// The expected name of the Wasmer library when compiled for Apple devices.
62	const appleLib = 'libwasmer.dylib';
63
64	/// The expected name of the Wasmer library when compiled for Linux devices.
65	const linuxLib = 'libwasmer.so';
66
67	/// The expected name of the Wasmer library when compiled for Windows devices.
68	const windowsLib = 'wasmer.dll';
69
70	/// Returns the uri representing the target output directory of generated
71	/// dynamic libraries.
72	Uri libBuildOutDir(Uri root) {	×
73	final pkgRoot = _packageRootUri(root);	×
74	if (pkgRoot == null) {
75	throw ArgumentError('Could not find "$_pkgConfigFile" within "$root".');	×
76	}
77	return pkgRoot.resolve(_wasmToolDir);	×
78	}
79
80	const _wasmToolDir = '.dart_tool/wasm/';
81
82	const _pkgConfigFile = '.dart_tool/package_config.json';
83
84	Uri? _packageRootUri(Uri root) {	16✔
85	do {
86	if (FileSystemEntity.isFileSync(	16✔
87	root.resolve(_pkgConfigFile).toFilePath(),	32✔
88	)) {
89	return root;
90	}
91	} while (root != (root = root.resolve('..')));	32✔
92	return null;
93	}

dart-lang / wasm / 4775430471

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