All files / compiler-dom/src/transforms vText.ts

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import {
  type DirectiveTransform,
  TO_DISPLAY_STRING,
  createCallExpression,
  createObjectProperty,
  createSimpleExpression,
  getConstantType,
} from '@vue/compiler-core'
import { DOMErrorCodes, createDOMCompilerError } from '../errors'
 
export const transformVText: DirectiveTransform = (dir, node, context) => {
  const { exp, loc } = dir
  if (!exp) {
    context.onError(
      createDOMCompilerError(DOMErrorCodes.X_V_TEXT_NO_EXPRESSION, loc),
    )
  }
  if (node.children.length) {
    context.onError(
      createDOMCompilerError(DOMErrorCodes.X_V_TEXT_WITH_CHILDREN, loc),
    )
    node.children.length = 0
  }
  return {
    props: [
      createObjectProperty(
        createSimpleExpression(`textContent`, true),
        exp
          ? getConstantType(exp, context) > 0
            ? exp
            : createCallExpression(
                context.helperString(TO_DISPLAY_STRING),
                [exp],
                loc,
              )
          : createSimpleExpression('', true),
      ),
    ],
  }
}