genData() — vue Function Reference

Architecture documentation for the genData() function in index.ts from the vue codebase.

Function typescript VueCore Observer calls 5 called by 2

Entity Profile

VueCore→ Observer→ genData() — vue Function Reference

Dependency Diagram

graph TD
  2f9548d4_5dab_e18c_c75b_5e2c2bf4a780["genData()"]
  6a18399e_553e_fef8_6a39_746f79f94bd2["index.ts"]
  2f9548d4_5dab_e18c_c75b_5e2c2bf4a780 -->|defined in| 6a18399e_553e_fef8_6a39_746f79f94bd2
  009d7fc7_09cb_184e_e93c_1f468ff505c0["genElement()"]
  009d7fc7_09cb_184e_e93c_1f468ff505c0 -->|calls| 2f9548d4_5dab_e18c_c75b_5e2c2bf4a780
  c853697a_a300_4af8_8ebe_b8ab14fdba76["genComponent()"]
  c853697a_a300_4af8_8ebe_b8ab14fdba76 -->|calls| 2f9548d4_5dab_e18c_c75b_5e2c2bf4a780
  65c98e23_e1e3_e4ac_083d_ca95d9519bbe["genDirectives()"]
  2f9548d4_5dab_e18c_c75b_5e2c2bf4a780 -->|calls| 65c98e23_e1e3_e4ac_083d_ca95d9519bbe
  cac71b0e_014c_ebb4_99ba_c0a5c9456dff["genProps()"]
  2f9548d4_5dab_e18c_c75b_5e2c2bf4a780 -->|calls| cac71b0e_014c_ebb4_99ba_c0a5c9456dff
  8ee0ad78_1765_a17a_b19d_4e3acc54fa2c["genHandlers()"]
  2f9548d4_5dab_e18c_c75b_5e2c2bf4a780 -->|calls| 8ee0ad78_1765_a17a_b19d_4e3acc54fa2c
  e76cb7d0_b3c3_6c47_2e67_6c6f84d32371["genScopedSlots()"]
  2f9548d4_5dab_e18c_c75b_5e2c2bf4a780 -->|calls| e76cb7d0_b3c3_6c47_2e67_6c6f84d32371
  e938c7fb_0689_18e9_dee1_047bd690c1b0["genInlineTemplate()"]
  2f9548d4_5dab_e18c_c75b_5e2c2bf4a780 -->|calls| e938c7fb_0689_18e9_dee1_047bd690c1b0
  style 2f9548d4_5dab_e18c_c75b_5e2c2bf4a780 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

src/compiler/codegen/index.ts lines 277–359

export function genData(el: ASTElement, state: CodegenState): string {
  let data = '{'

  // directives first.
  // directives may mutate the el's other properties before they are generated.
  const dirs = genDirectives(el, state)
  if (dirs) data += dirs + ','

  // key
  if (el.key) {
    data += `key:${el.key},`
  }
  // ref
  if (el.ref) {
    data += `ref:${el.ref},`
  }
  if (el.refInFor) {
    data += `refInFor:true,`
  }
  // pre
  if (el.pre) {
    data += `pre:true,`
  }
  // record original tag name for components using "is" attribute
  if (el.component) {
    data += `tag:"${el.tag}",`
  }
  // module data generation functions
  for (let i = 0; i < state.dataGenFns.length; i++) {
    data += state.dataGenFns[i](el)
  }
  // attributes
  if (el.attrs) {
    data += `attrs:${genProps(el.attrs)},`
  }
  // DOM props
  if (el.props) {
    data += `domProps:${genProps(el.props)},`
  }
  // event handlers
  if (el.events) {
    data += `${genHandlers(el.events, false)},`
  }
  if (el.nativeEvents) {
    data += `${genHandlers(el.nativeEvents, true)},`
  }
  // slot target
  // only for non-scoped slots
  if (el.slotTarget && !el.slotScope) {
    data += `slot:${el.slotTarget},`
  }
  // scoped slots
  if (el.scopedSlots) {
    data += `${genScopedSlots(el, el.scopedSlots, state)},`
  }
  // component v-model
  if (el.model) {
    data += `model:{value:${el.model.value},callback:${el.model.callback},expression:${el.model.expression}},`
  }
  // inline-template
  if (el.inlineTemplate) {
    const inlineTemplate = genInlineTemplate(el, state)
    if (inlineTemplate) {
      data += `${inlineTemplate},`
    }
  }
  data = data.replace(/,$/, '') + '}'
  // v-bind dynamic argument wrap
  // v-bind with dynamic arguments must be applied using the same v-bind object
  // merge helper so that class/style/mustUseProp attrs are handled correctly.
  if (el.dynamicAttrs) {
    data = `_b(${data},"${el.tag}",${genProps(el.dynamicAttrs)})`
  }
  // v-bind data wrap
  if (el.wrapData) {
    data = el.wrapData(data)
  }
  // v-on data wrap
  if (el.wrapListeners) {
    data = el.wrapListeners(data)
  }