aws-cdk
Version:
AWS CDK CLI, the command line tool for CDK apps
60 lines • 7.38 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.setSdkTracing = setSdkTracing;
exports.callTrace = callTrace;
exports.traceMemberMethods = traceMemberMethods;
let ENABLED = false;
let INDENT = 0;
function setSdkTracing(enabled) {
ENABLED = enabled;
}
/**
* Method decorator to trace a single static or member method, any time it's called
*/
function callTrace(fn, className, logger) {
if (!ENABLED || !logger) {
return;
}
logger.info(`[trace] ${' '.repeat(INDENT)}${className || '(anonymous)'}#${fn}()`);
}
/**
* Method decorator to trace a single member method any time it's called
*/
function traceCall(receiver, _propertyKey, descriptor, parentClassName) {
const fn = descriptor.value;
const className = typeof receiver === 'function' ? receiver.name : parentClassName;
descriptor.value = function (...args) {
const logger = this.logger;
if (!ENABLED || typeof logger?.info !== 'function') {
return fn.apply(this, args);
}
logger.info.apply(logger, [`[trace] ${' '.repeat(INDENT)}${className || this.constructor.name || '(anonymous)'}#${fn.name}()`]);
INDENT += 2;
const ret = fn.apply(this, args);
if (ret instanceof Promise) {
return ret.finally(() => {
INDENT -= 2;
});
}
else {
INDENT -= 2;
return ret;
}
};
return descriptor;
}
/**
* Class decorator, enable tracing for all member methods on this class
* @deprecated this doesn't work well with localized logging instances, don't use
*/
function traceMemberMethods(constructor) {
// Instance members
for (const [name, descriptor] of Object.entries(Object.getOwnPropertyDescriptors(constructor.prototype))) {
if (typeof descriptor.value !== 'function') {
continue;
}
const newDescriptor = traceCall(constructor.prototype, name, descriptor, constructor.name) ?? descriptor;
Object.defineProperty(constructor.prototype, name, newDescriptor);
}
}
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tcbiAgICB9XG4gICAgY29uc3QgbmV3RGVzY3JpcHRvciA9IHRyYWNlQ2FsbChjb25zdHJ1Y3Rvci5wcm90b3R5cGUsIG5hbWUsIGRlc2NyaXB0b3IsIGNvbnN0cnVjdG9yLm5hbWUpID8/IGRlc2NyaXB0b3I7XG4gICAgT2JqZWN0LmRlZmluZVByb3BlcnR5KGNvbnN0cnVjdG9yLnByb3RvdHlwZSwgbmFtZSwgbmV3RGVzY3JpcHRvcik7XG4gIH1cbn1cbiJdfQ==