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'use strict';
// If user passed `-c` or `--check` arguments to Node, check its syntax
// instead of actually running the file.
const {
prepareMainThreadExecution
} = require('internal/bootstrap/pre_execution');
const {
readStdin
} = require('internal/process/execution');
const CJSModule = require('internal/modules/cjs/loader');
const vm = require('vm');
const {
stripShebang, stripBOM
} = require('internal/modules/cjs/helpers');
if (process.argv[1] && process.argv[1] !== '-') {
// Expand process.argv[1] into a full path.
const path = require('path');
process.argv[1] = path.resolve(process.argv[1]);
// Read the source.
const filename = CJSModule._resolveFilename(process.argv[1]);
const fs = require('fs');
const source = fs.readFileSync(filename, 'utf-8');
// TODO(joyeecheung): not every one of these are necessary
prepareMainThreadExecution();
markBootstrapComplete();
checkScriptSyntax(source, filename);
} else {
// TODO(joyeecheung): not every one of these are necessary
prepareMainThreadExecution();
markBootstrapComplete();
readStdin((code) => {
checkScriptSyntax(code, '[stdin]');
});
}
function checkScriptSyntax(source, filename) {
// Remove Shebang.
source = stripShebang(source);
// Remove BOM.
source = stripBOM(source);
// Wrap it.
source = CJSModule.wrap(source);
// Compile the script, this will throw if it fails.
new vm.Script(source, { displayErrors: true, filename });
}
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