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fix(compiler-core): prevent generating invalid code for v-bind with empty expression (#1720)

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This commit is contained in:
underfin
2020-07-28 06:31:08 +08:00
committed by GitHub
parent 5fbd1f4ccb
commit d4527230e4
2 changed files with 24 additions and 7 deletions
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18
packages/compiler-core/src/transforms/vBind.ts
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@@ -10,9 +10,6 @@ import { CAMELIZE } from '../runtimeHelpers'
export const transformBind: DirectiveTransform = (dir, node, context) => {
const { exp, modifiers, loc } = dir
const arg = dir.arg!
if (!exp || (exp.type === NodeTypes.SIMPLE_EXPRESSION && !exp.content)) {
context.onError(createCompilerError(ErrorCodes.X_V_BIND_NO_EXPRESSION, loc))
}
// .prop is no longer necessary due to new patch behavior
// .sync is replaced by v-model:arg
if (modifiers.includes('camel')) {
@@ -27,9 +24,18 @@ export const transformBind: DirectiveTransform = (dir, node, context) => {
arg.children.push(`)`)
}
}
if (
!exp ||
(exp.type === NodeTypes.SIMPLE_EXPRESSION && !exp.content.trim())
) {
context.onError(createCompilerError(ErrorCodes.X_V_BIND_NO_EXPRESSION, loc))
return {
props: [createObjectProperty(arg!, createSimpleExpression('', true, loc))]
}
}
return {
props: [
createObjectProperty(arg!, exp || createSimpleExpression('', true, loc))
]
props: [createObjectProperty(arg!, exp)]
}
}