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fix(rosetta): attempts transliteraiton to unsupported languages #3478

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Apr 26, 2022
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fix(rosetta): attempts transliteraiton to unsupported languages #3478

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b0a50d2
fix(rosetta): attempts transliteraiton to unsupported languages
RomainMuller Apr 11, 2022
41158cf
Merge branch 'main' into rmuller/translate-missing-skip-unsupported
RomainMuller Apr 25, 2022
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7 changes: 7 additions & 0 deletions packages/jsii-rosetta/lib/commands/transliterate.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -3,6 +3,7 @@ import { readJson, writeJson } from 'fs-extra';
import { resolve } from 'path';

import { TargetLanguage } from '../languages';
import { targetName } from '../languages/target-language';
import { debug } from '../logging';
import { RosettaTabletReader, UnknownSnippetMode } from '../rosetta-reader';
import { typeScriptSnippetFromVisibleSource, ApiLocation } from '../snippet';
Expand Down Expand Up @@ -99,6 +100,12 @@ export async function transliterateAssembly(
const now = new Date().getTime();
// eslint-disable-next-line no-await-in-loop
const result = await loadAssembly();

if (result.targets?.[targetName(language)] == null) {
// This language is not supported by the assembly, so we skip it...
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Wondering if we need some explicit output to tell callers that a language is unsupported?

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Yeah but we'd want that ONLY if the language was specifically requested...?

continue;
}

if (result.readme?.markdown) {
result.readme.markdown = rosetta.translateSnippetsInMarkdown(
{ api: 'moduleReadme', moduleFqn: result.name },
Expand Down
31 changes: 31 additions & 0 deletions packages/jsii-rosetta/lib/languages/target-language.ts
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Original file line number Diff line number Diff line change
@@ -1,6 +1,37 @@
import * as assert from 'assert';

export enum TargetLanguage {
PYTHON = 'python',
CSHARP = 'csharp',
JAVA = 'java',
GO = 'go',
}

const VALID_TARGET_LANGUAGES = new Set(Object.values(TargetLanguage));

export function targetName(language: TargetLanguage.PYTHON): 'python';
export function targetName(language: TargetLanguage.CSHARP): 'dotnet';
export function targetName(language: TargetLanguage.JAVA): 'java';
export function targetName(language: TargetLanguage.GO): 'go';
export function targetName(language: TargetLanguage): 'python' | 'dotnet' | 'java' | 'go';
/**
* @param language a possible value for `TargetLanguage`.
*
* @returns the name of the target configuration block for the given language.
*/
export function targetName(language: TargetLanguage): 'python' | 'dotnet' | 'java' | 'go' {
// The TypeScript compiler should guarantee the below `switch` statement covers all possible
// values of the TargetLanguage enum, but we add an assert here for clarity of intent.
assert(VALID_TARGET_LANGUAGES.has(language), `Invalid/unexpected target language identifier: ${language}`);

switch (language) {
case TargetLanguage.PYTHON:
return 'python';
case TargetLanguage.CSHARP:
return 'dotnet';
case TargetLanguage.JAVA:
return 'java';
case TargetLanguage.GO:
return 'go';
}
}
209 changes: 166 additions & 43 deletions packages/jsii-rosetta/test/commands/transliterate.test.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -5,12 +5,18 @@ import * as path from 'path';

import { extractSnippets } from '../../lib/commands/extract';
import { transliterateAssembly } from '../../lib/commands/transliterate';
import { TargetLanguage } from '../../lib/languages/target-language';
import { TargetLanguage, targetName } from '../../lib/languages/target-language';
import { TabletSchema } from '../../lib/tablets/schema';
import { withTemporaryDirectory, TestJsiiModule, DUMMY_JSII_CONFIG } from '../testutil';

jest.setTimeout(60_000);

// A targets configuration block with ALL targets enabled (although with phony configuration).
const targets = Object.values(TargetLanguage).reduce((tgt, lang) => {
tgt[targetName(lang)] = { phony: true };
return tgt;
}, {} as Record<string, unknown>);

test('single assembly, all languages', () =>
withTemporaryDirectory(async (tmpDir) => {
// GIVEN
Expand Down Expand Up @@ -90,9 +96,13 @@ export class ClassName implements IInterface {
}
}`,
});
fs.writeJsonSync(path.join(tmpDir, SPEC_FILE_NAME), compilationResult.assembly, {
spaces: 2,
});
fs.writeJsonSync(
path.join(tmpDir, SPEC_FILE_NAME),
{ ...compilationResult.assembly, targets },
{
spaces: 2,
},
);
for (const [file, content] of Object.entries(compilationResult.files)) {
fs.writeFileSync(path.resolve(tmpDir, file), content, 'utf-8');
}
Expand All @@ -115,6 +125,7 @@ export class ClassName implements IInterface {
{
fingerprint: expect.any(String),
jsiiVersion: expect.any(String),
targets: expect.any(Object),
},
`
Object {
Expand Down Expand Up @@ -153,11 +164,7 @@ export class ClassName implements IInterface {
"url": "https://github.com/aws/jsii.git",
},
"schema": "jsii/0.10.0",
"targets": Object {
"js": Object {
"npm": "testpkg",
},
},
"targets": Any<Object>,
"types": Object {
"testpkg.ClassName": Object {
"assembly": "testpkg",
Expand Down Expand Up @@ -373,6 +380,7 @@ export class ClassName implements IInterface {
{
fingerprint: expect.any(String),
jsiiVersion: expect.any(String),
targets: expect.any(Object),
},
`
Object {
Expand Down Expand Up @@ -411,11 +419,7 @@ export class ClassName implements IInterface {
"url": "https://github.com/aws/jsii.git",
},
"schema": "jsii/0.10.0",
"targets": Object {
"js": Object {
"npm": "testpkg",
},
},
"targets": Any<Object>,
"types": Object {
"testpkg.ClassName": Object {
"assembly": "testpkg",
Expand Down Expand Up @@ -631,6 +635,7 @@ export class ClassName implements IInterface {
{
fingerprint: expect.any(String),
jsiiVersion: expect.any(String),
targets: expect.any(Object),
},
`
Object {
Expand Down Expand Up @@ -669,11 +674,7 @@ export class ClassName implements IInterface {
"url": "https://github.com/aws/jsii.git",
},
"schema": "jsii/0.10.0",
"targets": Object {
"js": Object {
"npm": "testpkg",
},
},
"targets": Any<Object>,
"types": Object {
"testpkg.ClassName": Object {
"assembly": "testpkg",
Expand Down Expand Up @@ -933,9 +934,13 @@ import { SampleClass } from './index';
new SampleClass('omitted-literate');
`,
});
fs.writeJsonSync(path.join(tmpDir, SPEC_FILE_NAME), compilationResult.assembly, {
spaces: 2,
});
fs.writeJsonSync(
path.join(tmpDir, SPEC_FILE_NAME),
{ ...compilationResult.assembly, targets },
{
spaces: 2,
},
);
for (const [file, content] of Object.entries(compilationResult.files)) {
if (file.startsWith('omit-')) {
continue;
Expand All @@ -955,6 +960,7 @@ new SampleClass('omitted-literate');
{
fingerprint: expect.any(String),
jsiiVersion: expect.any(String),
targets: expect.any(Object),
},
`
Object {
Expand Down Expand Up @@ -1008,11 +1014,7 @@ new SampleClass('omitted-literate');
"url": "https://github.com/aws/jsii.git",
},
"schema": "jsii/0.10.0",
"targets": Object {
"js": Object {
"npm": "testpkg",
},
},
"targets": Any<Object>,
"types": Object {
"testpkg.SampleClass": Object {
"assembly": "testpkg",
Expand Down Expand Up @@ -1053,6 +1055,7 @@ new SampleClass('omitted-literate');
{
fingerprint: expect.any(String),
jsiiVersion: expect.any(String),
targets: expect.any(Object),
},
`
Object {
Expand Down Expand Up @@ -1106,11 +1109,7 @@ new SampleClass('omitted-literate');
"url": "https://github.com/aws/jsii.git",
},
"schema": "jsii/0.10.0",
"targets": Object {
"js": Object {
"npm": "testpkg",
},
},
"targets": Any<Object>,
"types": Object {
"testpkg.SampleClass": Object {
"assembly": "testpkg",
Expand Down Expand Up @@ -1151,6 +1150,7 @@ new SampleClass('omitted-literate');
{
fingerprint: expect.any(String),
jsiiVersion: expect.any(String),
targets: expect.any(Object),
},
`
Object {
Expand Down Expand Up @@ -1204,11 +1204,7 @@ new SampleClass('omitted-literate');
"url": "https://github.com/aws/jsii.git",
},
"schema": "jsii/0.10.0",
"targets": Object {
"js": Object {
"npm": "testpkg",
},
},
"targets": Any<Object>,
"types": Object {
"testpkg.SampleClass": Object {
"assembly": "testpkg",
Expand Down Expand Up @@ -1322,9 +1318,13 @@ export class ClassName implements IInterface {
}
}`,
});
fs.writeJsonSync(path.join(tmpDir, SPEC_FILE_NAME), compilationResult.assembly, {
spaces: 2,
});
fs.writeJsonSync(
path.join(tmpDir, SPEC_FILE_NAME),
{ ...compilationResult.assembly, targets },
{
spaces: 2,
},
);
for (const [file, content] of Object.entries(compilationResult.files)) {
fs.writeFileSync(path.resolve(tmpDir, file), content, 'utf-8');
}
Expand Down Expand Up @@ -1471,9 +1471,14 @@ export class ClassName implements IInterface {
}
}`,
});
fs.writeJsonSync(path.join(tmpDir, SPEC_FILE_NAME), compilationResult.assembly, {
spaces: 2,
});

fs.writeJsonSync(
path.join(tmpDir, SPEC_FILE_NAME),
{ ...compilationResult.assembly, targets },
{
spaces: 2,
},
);
for (const [file, content] of Object.entries(compilationResult.files)) {
fs.writeFileSync(path.resolve(tmpDir, file), content, 'utf-8');
}
Expand All @@ -1500,3 +1505,121 @@ export class ClassName implements IInterface {
expect(fs.statSync(path.join(outdir, `${SPEC_FILE_NAME}.${lang}`)).isFile()).toBe(true);
});
}));

test('will not attempt to produce output for an unsupported language', async () =>
withTemporaryDirectory(async (tmpDir) => {
// GIVEN
const compilationResult = jsii.compileJsiiForTest({
'README.md': `
# README
\`\`\`ts
const object: IInterface = new ClassName('this', 1337, { foo: 'bar' });
object.property = EnumType.OPTION_A;
object.methodCall();

ClassName.staticMethod(EnumType.OPTION_B);
\`\`\`
`,
'index.ts': `
/**
* @example new ClassName('this', 1337, { property: EnumType.OPTION_B });
*/
export enum EnumType {
/**
* @example new ClassName('this', 1337, { property: EnumType.OPTION_A });
*/
OPTION_A = 1,

/**
* @example new ClassName('this', 1337, { property: EnumType.OPTION_B });
*/
OPTION_B = 2,
}

export interface IInterface {
/**
* A property value.
*
* @example
* iface.property = EnumType.OPTION_B;
*/
property: EnumType;

/**
* An instance method call.
*
* @example
* iface.methodCall();
*/
methodCall(): void;
}

export interface ClassNameProps {
readonly property?: EnumType;
readonly foo?: string;
}

export class ClassName implements IInterface {
/**
* A static method. It can be invoked easily.
*
* @example ClassName.staticMethod();
*/
public static staticMethod(_enm?: EnumType): void {
// ...
}

public property: EnumType;

/**
* Create a new instance of ClassName.
*
* @example new ClassName('this', 1337, { property: EnumType.OPTION_B });
*/
public constructor(_this: string, _elite: number, props: ClassNameProps) {
this.property = props.property ?? EnumType.OPTION_A;
}

public methodCall(): void {
// ...
}
}`,
});

fs.writeJsonSync(
path.join(tmpDir, SPEC_FILE_NAME),
{ ...compilationResult.assembly, targets: { ...targets, [targetName(TargetLanguage.GO)]: undefined } },
{
spaces: 2,
},
);
for (const [file, content] of Object.entries(compilationResult.files)) {
fs.writeFileSync(path.resolve(tmpDir, file), content, 'utf-8');
}
fs.mkdirSync(path.resolve(tmpDir, 'rosetta'));
fs.writeFileSync(
path.resolve(tmpDir, 'rosetta', 'default.ts-fixture'),
`import { EnumType, IInterface, ClassName } from '.';\ndeclare const iface: IInterface\n/// here`,
'utf-8',
);

// WHEN
// create outdir
const outdir = path.resolve(tmpDir, 'out');
fs.mkdirSync(outdir);

await expect(
transliterateAssembly([tmpDir], Object.values(TargetLanguage), {
strict: true,
outdir,
}),
).resolves.not.toThrow();

Object.values(TargetLanguage).forEach((lang) => {
if (lang === TargetLanguage.GO) {
expect(fs.pathExistsSync(path.join(outdir, `${SPEC_FILE_NAME}.${lang}`))).toBe(false);
} else {
expect(fs.statSync(path.join(outdir, `${SPEC_FILE_NAME}.${lang}`)).isFile()).toBe(true);
}
});
}));