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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 | 102x 3672x 1994x 1291x 15x 15x 1x 1x 14x 14x 14x | import { camelize } from '@vue/shared'
import {
NodeTypes,
type SimpleExpressionNode,
createSimpleExpression,
} from '../ast'
import type { NodeTransform } from '../transform'
import { ErrorCodes, createCompilerError } from '../errors'
import { validFirstIdentCharRE } from '../utils'
export const transformVBindShorthand: NodeTransform = (node, context) => {
if (node.type === NodeTypes.ELEMENT) {
for (const prop of node.props) {
// same-name shorthand - :arg is expanded to :arg="arg"
if (
prop.type === NodeTypes.DIRECTIVE &&
prop.name === 'bind' &&
(!prop.exp ||
// #13930 :foo in in-DOM templates will be parsed into :foo="" by browser
(__BROWSER__ &&
prop.exp.type === NodeTypes.SIMPLE_EXPRESSION &&
!prop.exp.content.trim())) &&
prop.arg
) {
const arg = prop.arg
if (arg.type !== NodeTypes.SIMPLE_EXPRESSION || !arg.isStatic) {
// only simple expression is allowed for same-name shorthand
context.onError(
createCompilerError(
ErrorCodes.X_V_BIND_INVALID_SAME_NAME_ARGUMENT,
arg.loc,
),
)
prop.exp = createSimpleExpression('', true, arg.loc)
} else {
const propName = camelize((arg as SimpleExpressionNode).content)
Eif (
validFirstIdentCharRE.test(propName[0]) ||
// allow hyphen first char for https://github.com/vuejs/language-tools/pull/3424
propName[0] === '-'
) {
prop.exp = createSimpleExpression(propName, false, arg.loc)
}
}
}
}
}
}
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