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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 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 | 84x 84x 84x 84x 84x 84x 84x 1716x 30x 30x 30x 30x 30x 5x 5x 30x 5x 5x 30x 2x 30x 30x 84x 44x 44x 44x 44x 24x 24x 11x 11x 6x 5x 5x 13x 4x 9x 7x 9x 44x 9x 9x 9x 1x 44x | import { NodeTransform, TransformContext } from '../transform'
import {
NodeTypes,
CallExpression,
createCallExpression,
ExpressionNode,
SlotOutletNode,
createFunctionExpression
} from '../ast'
import { isSlotOutlet, isStaticArgOf, isStaticExp } from '../utils'
import { buildProps, PropsExpression } from './transformElement'
import { createCompilerError, ErrorCodes } from '../errors'
import { RENDER_SLOT } from '../runtimeHelpers'
import { camelize } from '@vue/shared/'
export const transformSlotOutlet: NodeTransform = (node, context) => {
if (isSlotOutlet(node)) {
const { children, loc } = node
const { slotName, slotProps } = processSlotOutlet(node, context)
const slotArgs: CallExpression['arguments'] = [
context.prefixIdentifiers ? `_ctx.$slots` : `$slots`,
slotName,
'{}',
'undefined',
'true'
]
let expectedLen = 2
if (slotProps) {
slotArgs[2] = slotProps
expectedLen = 3
}
if (children.length) {
slotArgs[3] = createFunctionExpression([], children, false, false, loc)
expectedLen = 4
}
if (context.scopeId && !context.slotted) {
expectedLen = 5
}
slotArgs.splice(expectedLen) // remove unused arguments
node.codegenNode = createCallExpression(
context.helper(RENDER_SLOT),
slotArgs,
loc
)
}
}
interface SlotOutletProcessResult {
slotName: string | ExpressionNode
slotProps: PropsExpression | undefined
}
export function processSlotOutlet(
node: SlotOutletNode,
context: TransformContext
): SlotOutletProcessResult {
let slotName: string | ExpressionNode = `"default"`
let slotProps: PropsExpression | undefined = undefined
const nonNameProps = []
for (let i = 0; i < node.props.length; i++) {
const p = node.props[i]
if (p.type === NodeTypes.ATTRIBUTE) {
if (p.value) {
if (p.name === 'name') {
slotName = JSON.stringify(p.value.content)
} else {
p.name = camelize(p.name)
nonNameProps.push(p)
}
}
} else {
if (p.name === 'bind' && isStaticArgOf(p.arg, 'name')) {
if (p.exp) slotName = p.exp
} else {
if (p.name === 'bind' && p.arg && isStaticExp(p.arg)) {
p.arg.content = camelize(p.arg.content)
}
nonNameProps.push(p)
}
}
}
if (nonNameProps.length > 0) {
const { props, directives } = buildProps(node, context, nonNameProps)
slotProps = props
if (directives.length) {
context.onError(
createCompilerError(
ErrorCodes.X_V_SLOT_UNEXPECTED_DIRECTIVE_ON_SLOT_OUTLET,
directives[0].loc
)
)
}
}
return {
slotName,
slotProps
}
}
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