_read() — vue Function Reference

Architecture documentation for the _read() function in render-stream.ts from the vue codebase.

Function typescript ServerRenderer BundleRenderer calls 3

Entity Profile

ServerRenderer→ BundleRenderer→ _read() — vue Function Reference

Dependency Diagram

graph TD
  26f93250_b4a7_4186_f2ca_6e7705f6c0d6["_read()"]
  60ba4fed_c502_859c_60b1_5ab9b57882ca["RenderStream"]
  26f93250_b4a7_4186_f2ca_6e7705f6c0d6 -->|defined in| 60ba4fed_c502_859c_60b1_5ab9b57882ca
  9142a816_c281_34f1_d187_c42a71e9ebc2["pushBySize()"]
  26f93250_b4a7_4186_f2ca_6e7705f6c0d6 -->|calls| 9142a816_c281_34f1_d187_c42a71e9ebc2
  5424efdc_7dd2_a107_0b02_df960b12b9bb["tryRender()"]
  26f93250_b4a7_4186_f2ca_6e7705f6c0d6 -->|calls| 5424efdc_7dd2_a107_0b02_df960b12b9bb
  f1eef107_ac43_15e5_0802_999cd0990503["tryNext()"]
  26f93250_b4a7_4186_f2ca_6e7705f6c0d6 -->|calls| f1eef107_ac43_15e5_0802_999cd0990503
  style 26f93250_b4a7_4186_f2ca_6e7705f6c0d6 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

packages/server-renderer/src/render-stream.ts lines 79–99

  _read(n: number) {
    this.expectedSize = n
    // it's possible that the last chunk added bumped the buffer up to > 2 * n,
    // which means we will need to go through multiple read calls to drain it
    // down to < n.
    if (isTrue(this.done)) {
      this.push(null)
      return
    }
    if (this.buffer.length >= n) {
      this.pushBySize(n)
      return
    }
    if (isUndef(this.next)) {
      // start the rendering chain.
      this.tryRender()
    } else {
      // continue with the rendering.
      this.tryNext()
    }
  }