vue3-core/packages/compiler-dom/src/transforms/vText.ts

38 lines
926 B
TypeScript

import {
DirectiveTransform,
createObjectProperty,
createSimpleExpression,
TO_DISPLAY_STRING,
createCallExpression
} from '@vue/compiler-core'
import { createDOMCompilerError, DOMErrorCodes } 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
? createCallExpression(
context.helperString(TO_DISPLAY_STRING),
[exp],
loc
)
: createSimpleExpression('', true)
)
]
}
}