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fix(compiler-core): fix directive args with empty holes

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This commit is contained in:
Evan You 2019-10-11 20:35:01 -04:00
parent 59e18e5478
commit acf406b779
1 changed files with 14 additions and 3 deletions
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17
packages/compiler-core/src/transforms/transformElement.ts
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@ -141,7 +141,7 @@ export const transformElement: NodeTransform = (node, context) => {
[
vnode,
createArrayExpression(
runtimeDirectives.map(dir => createDirectiveArgs(dir, context)),
runtimeDirectives.map(dir => buildDirectiveArgs(dir, context)),
loc
)
],
@ -390,7 +390,7 @@ function mergeAsArray(existing: Property, incoming: Property) {
}
}
function createDirectiveArgs(
function buildDirectiveArgs(
dir: DirectiveNode,
context: TransformContext
): ArrayExpression {
@ -407,8 +407,19 @@ function createDirectiveArgs(
}
const { loc } = dir
if (dir.exp) dirArgs.push(dir.exp)
if (dir.arg) dirArgs.push(dir.arg)
if (dir.arg) {
if (!dir.exp) {
dirArgs.push(`void 0`)
}
dirArgs.push(dir.arg)
}
if (Object.keys(dir.modifiers).length) {
if (!dir.arg) {
if (!dir.exp) {
dirArgs.push(`void 0`)
}
dirArgs.push(`void 0`)
}
dirArgs.push(
createObjectExpression(
dir.modifiers.map(modifier =>