How to use the @lwc/compiler.transformSync function in @lwc/compiler
To help you get started, we’ve selected a few @lwc/compiler examples, based on popular ways it is used in public projects.
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salesforce / lwc-test / packages / @lwc / jest-transformer / src / index.js View on Github 
process(src, filePath) {
// Set default module name and namespace value for the namespace because it can't be properly guessed from the path
const { code, map } = lwcCompiler.transformSync(src, filePath, {
name: 'test',
namespace: 'x',
outputConfig: {
sourcemap: true,
},
});
// if is not .js, we add the .compiled extension in the sourcemap
const filename = path.extname(filePath) === '.js' ? filePath : filePath + '.compiled';
// **Note: .html and .css don't return valid sourcemaps cause they are used for rollup
const config = map && map.version ? { inputSourceMap: map } : {};
return babelCore.transform(code, { ...BABEL_CONFIG, ...config, filename });
},
getCacheKey(fileData, filePath, configStr, options) {process(src, filePath) {
// Set default module name and namespace value for the namespace because it can't be properly guessed from the path
const { code, map } = lwcCompiler.transformSync(src, filePath, {
moduleName: 'test',
moduleNamespace: 'x',
outputConfig: {
sourcemap: true,
},
});
// if is not .js, we add the .compiled extension in the sourcemap
const filename = path.extname(filePath) === '.js' ? filePath : filePath + '.compiled';
// **Note: .html and .css don't return valid sourcemaps cause they are used for rollup
const config = map && map.version ? { inputSourceMap: map } : {};
return babelCore.transform(code, { ...BABEL_CONFIG, ...config, filename });
},
getCacheKey(fileData, filePath, configStr, options) {
