CallSiteToString() — vite Function Reference

Architecture documentation for the CallSiteToString() function in interceptor.ts from the vite codebase.

Function typescript ModuleRunner SourcemapHandler

Entity Profile

ModuleRunner→ SourcemapHandler→ CallSiteToString() — vite Function Reference

Dependency Diagram

graph TD
  c7a3a2e2_4a8d_2b41_c3c3_b398b25f4e04["CallSiteToString()"]
  95cae2f2_ad8c_91c1_5a74_93d939dbc47b["interceptor.ts"]
  c7a3a2e2_4a8d_2b41_c3c3_b398b25f4e04 -->|defined in| 95cae2f2_ad8c_91c1_5a74_93d939dbc47b
  style c7a3a2e2_4a8d_2b41_c3c3_b398b25f4e04 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

packages/vite/src/module-runner/sourcemap/interceptor.ts lines 266–330

function CallSiteToString(this: CallSite) {
  let fileName
  let fileLocation = ''
  if (this.isNative()) {
    fileLocation = 'native'
  } else {
    fileName = this.getScriptNameOrSourceURL()
    if (!fileName && this.isEval()) {
      fileLocation = this.getEvalOrigin() as string
      fileLocation += ', ' // Expecting source position to follow.
    }

    if (fileName) {
      fileLocation += fileName
    } else {
      // Source code does not originate from a file and is not native, but we
      // can still get the source position inside the source string, e.g. in
      // an eval string.
      fileLocation += '<anonymous>'
    }
    const lineNumber = this.getLineNumber()
    if (lineNumber != null) {
      fileLocation += `:${lineNumber}`
      const columnNumber = this.getColumnNumber()
      if (columnNumber) fileLocation += `:${columnNumber}`
    }
  }

  let line = ''
  const functionName = this.getFunctionName()
  let addSuffix = true
  const isConstructor = this.isConstructor()
  const isMethodCall = !(this.isToplevel() || isConstructor)
  if (isMethodCall) {
    let typeName = this.getTypeName()
    // Fixes shim to be backward compatible with Node v0 to v4
    if (typeName === '[object Object]') typeName = 'null'

    const methodName = this.getMethodName()
    if (functionName) {
      if (typeName && functionName.indexOf(typeName) !== 0)
        line += `${typeName}.`

      line += functionName
      if (
        methodName &&
        functionName.indexOf(`.${methodName}`) !==
          functionName.length - methodName.length - 1
      )
        line += ` [as ${methodName}]`
    } else {
      line += `${typeName}.${methodName || '<anonymous>'}`
    }
  } else if (isConstructor) {
    line += `new ${functionName || '<anonymous>'}`
  } else if (functionName) {
    line += functionName
  } else {
    line += fileLocation
    addSuffix = false
  }
  if (addSuffix) line += ` (${fileLocation})`

  return line
}