checkExistence() — fastify Function Reference

Architecture documentation for the checkExistence() function in decorate.js from the fastify codebase.

Function javascript CoreKernel LifecycleManager calls 1 called by 4

Entity Profile

CoreKernel→ LifecycleManager→ checkExistence() — fastify Function Reference

Dependency Diagram

graph TD
  1a95bc02_b753_7419_3efc_0b867baa83a6["checkExistence()"]
  b5b3567f_29bc_3ac4_2dcc_eba5eeb01c3e["decorate.js"]
  1a95bc02_b753_7419_3efc_0b867baa83a6 -->|defined in| b5b3567f_29bc_3ac4_2dcc_eba5eeb01c3e
  8264c18b_01b7_d987_173c_5466d71c415f["getInstanceDecorator()"]
  8264c18b_01b7_d987_173c_5466d71c415f -->|calls| 1a95bc02_b753_7419_3efc_0b867baa83a6
  a9a61a5e_2cba_4205_859b_f872bab3de47["checkRequestExistence()"]
  a9a61a5e_2cba_4205_859b_f872bab3de47 -->|calls| 1a95bc02_b753_7419_3efc_0b867baa83a6
  05dd292f_1c2f_7477_7833_697ccfd5b992["checkReplyExistence()"]
  05dd292f_1c2f_7477_7833_697ccfd5b992 -->|calls| 1a95bc02_b753_7419_3efc_0b867baa83a6
  7d734264_83ae_0f9a_4ed9_57cba3726f85["checkDependencies()"]
  7d734264_83ae_0f9a_4ed9_57cba3726f85 -->|calls| 1a95bc02_b753_7419_3efc_0b867baa83a6
  11692e5b_f016_8497_4047_012d2b7bdd24["hasKey()"]
  1a95bc02_b753_7419_3efc_0b867baa83a6 -->|calls| 11692e5b_f016_8497_4047_012d2b7bdd24
  style 1a95bc02_b753_7419_3efc_0b867baa83a6 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

lib/decorate.js lines 81–87

function checkExistence (instance, name) {
  if (name) {
    return name in instance || (instance.prototype && name in instance.prototype) || hasKey(instance, name)
  }

  return instance in this
}