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transpile.ts
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transpile.ts
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import { TranspileOptions, TranspileResults, Config, TransformOptions, TransformCssToEsmInput } from '../declarations';
import { catchError, isString } from '@utils';
import { getTranspileCssConfig, getTranspileConfig, getTranspileResults } from './config/transpile-options';
import { getPublicCompilerMeta } from './transformers/add-component-meta-static';
import { patchTypescript, patchTypescriptSync } from './sys/typescript/typescript-patch';
import { rollupPluginUtils } from '@compiler-deps';
import { transformCssToEsm, transformCssToEsmSync } from './style/css-to-esm';
import { transpileModule } from './transpile/transpile-module';
export const transpile = async (code: string, opts: TranspileOptions = {}) => {
const { importData, results } = getTranspileResults(code, opts);
try {
if (shouldTranspileModule(results.inputFileExtension)) {
const { config, compileOpts, transformOpts } = getTranspileConfig(opts);
await patchTypescript(config, results.diagnostics, null);
transpileCode(config, compileOpts, transformOpts, results);
} else if (results.inputFileExtension === 'd.ts') {
results.code = '';
} else if (results.inputFileExtension === 'css') {
const transformInput = getTranspileCssConfig(opts, importData, results);
await transpileCss(transformInput, results);
} else if (results.inputFileExtension === 'json') {
transpileJson(results);
}
} catch (e) {
catchError(results.diagnostics, e);
}
return results;
};
export const transpileSync = (code: string, opts: TranspileOptions = {}) => {
const { importData, results } = getTranspileResults(code, opts);
try {
if (shouldTranspileModule(results.inputFileExtension)) {
const { config, compileOpts, transformOpts } = getTranspileConfig(opts);
patchTypescriptSync(config, results.diagnostics, null);
transpileCode(config, compileOpts, transformOpts, results);
} else if (results.inputFileExtension === 'd.ts') {
results.code = '';
} else if (results.inputFileExtension === 'css') {
const transformInput = getTranspileCssConfig(opts, importData, results);
transpileCssSync(transformInput, results);
} else if (results.inputFileExtension === 'json') {
transpileJson(results);
}
} catch (e) {
catchError(results.diagnostics, e);
}
return results;
};
const transpileCode = (config: Config, transpileOpts: TranspileOptions, transformOpts: TransformOptions, results: TranspileResults) => {
const transpileResults = transpileModule(config, results.code, transformOpts);
results.diagnostics.push(...transpileResults.diagnostics);
if (typeof transpileResults.code === 'string') {
results.code = transpileResults.code;
results.map = transpileResults.map;
if (transpileOpts.sourceMap === 'inline') {
try {
const mapObject = JSON.parse(transpileResults.map);
mapObject.file = transpileOpts.file;
mapObject.sources = [transpileOpts.file];
delete mapObject.sourceRoot;
const mapBase64 = Buffer.from(JSON.stringify(mapObject), 'utf8').toString('base64');
const sourceMapInlined = `data:application/json;charset=utf-8;base64,` + mapBase64;
const sourceMapComment = results.code.lastIndexOf('//#');
results.code = results.code.slice(0, sourceMapComment) + '//# sourceMappingURL=' + sourceMapInlined;
} catch (e) {
console.error(e);
}
}
}
if (isString(transpileResults.sourceFilePath)) {
results.inputFilePath = transpileResults.sourceFilePath;
}
const moduleFile = transpileResults.moduleFile;
if (moduleFile) {
results.outputFilePath = moduleFile.jsFilePath;
moduleFile.cmps.forEach(cmp => {
results.data.push(getPublicCompilerMeta(cmp));
});
moduleFile.originalImports.forEach(originalImport => {
results.imports.push({
path: originalImport,
});
});
}
};
const transpileCss = async (transformInput: TransformCssToEsmInput, results: TranspileResults) => {
const cssResults = await transformCssToEsm(transformInput);
results.code = cssResults.output;
results.map = cssResults.map;
results.imports = cssResults.imports.map(p => ({ path: p.importPath }));
results.diagnostics.push(...cssResults.diagnostics);
};
const transpileCssSync = (transformInput: TransformCssToEsmInput, results: TranspileResults) => {
const cssResults = transformCssToEsmSync(transformInput);
results.code = cssResults.output;
results.map = cssResults.map;
results.imports = cssResults.imports.map(p => ({ path: p.importPath }));
results.diagnostics.push(...cssResults.diagnostics);
};
const transpileJson = (results: TranspileResults) => {
results.code = rollupPluginUtils.dataToEsm(JSON.parse(results.code), {
preferConst: true,
compact: false,
indent: ' ',
});
results.map = { mappings: '' };
};
// NOTE: if you change this, also change scripts/bundles/helpers/jest/jest-preset.js
const shouldTranspileModule = (ext: string) => ['tsx', 'ts', 'mjs', 'jsx', 'js'].includes(ext);
export const compile = (code: string, opts: any = {}): Promise<any> => {
console.warn(`compile() deprecated, please use transpile() instead`);
return transpile(code, opts);
};
export const compileSync = (code: string, opts: any = {}): any => {
console.warn(`compileSync() deprecated, please use transpileSync() instead`);
return transpileSync(code, opts);
};