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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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 | 87x 87x 87x 87x 87x 87x 2018x 87x 1965x 87x 254x 254x 254x 254x 254x 254x 2x 2x 252x 252x 252x 254x 87x 254x 254x 143x 111x 111x 153x 153x 153x 153x 153x 111x 87x 41x 41x 36x 5x 2x 3x 1x | import { VNode } from './vnode'
import {
Data,
ComponentInternalInstance,
ConcreteComponent,
formatComponentName
} from './component'
import { isString, isFunction } from '@vue/shared'
import { toRaw, isRef, pauseTracking, resetTracking } from '@vue/reactivity'
import { callWithErrorHandling, ErrorCodes } from './errorHandling'
type ComponentVNode = VNode & {
type: ConcreteComponent
}
const stack: VNode[] = []
type TraceEntry = {
vnode: ComponentVNode
recurseCount: number
}
type ComponentTraceStack = TraceEntry[]
export function pushWarningContext(vnode: VNode) {
stack.push(vnode)
}
export function popWarningContext() {
stack.pop()
}
export function warn(msg: string, ...args: any[]) {
Iif (!__DEV__) return
// avoid props formatting or warn handler tracking deps that might be mutated
// during patch, leading to infinite recursion.
pauseTracking()
const instance = stack.length ? stack[stack.length - 1].component : null
const appWarnHandler = instance && instance.appContext.config.warnHandler
const trace = getComponentTrace()
if (appWarnHandler) {
callWithErrorHandling(
appWarnHandler,
instance,
ErrorCodes.APP_WARN_HANDLER,
[
msg + args.join(''),
instance && instance.proxy,
trace
.map(
({ vnode }) => `at <${formatComponentName(instance, vnode.type)}>`
)
.join('\n'),
trace
]
)
} else {
const warnArgs = [`[Vue warn]: ${msg}`, ...args]
/* istanbul ignore if */
if (
trace.length &&
// avoid spamming console during tests
!__TEST__
) {
warnArgs.push(`\n`, ...formatTrace(trace))
}
console.warn(...warnArgs)
}
resetTracking()
}
export function getComponentTrace(): ComponentTraceStack {
let currentVNode: VNode | null = stack[stack.length - 1]
if (!currentVNode) {
return []
}
// we can't just use the stack because it will be incomplete during updates
// that did not start from the root. Re-construct the parent chain using
// instance parent pointers.
const normalizedStack: ComponentTraceStack = []
while (currentVNode) {
const last = normalizedStack[0]
Iif (last && last.vnode === currentVNode) {
last.recurseCount++
} else {
normalizedStack.push({
vnode: currentVNode as ComponentVNode,
recurseCount: 0
})
}
const parentInstance: ComponentInternalInstance | null =
currentVNode.component && currentVNode.component.parent
currentVNode = parentInstance && parentInstance.vnode
}
return normalizedStack
}
/* istanbul ignore next */
function formatTrace(trace: ComponentTraceStack): any[] {
const logs: any[] = []
trace.forEach((entry, i) => {
logs.push(...(i === 0 ? [] : [`\n`]), ...formatTraceEntry(entry))
})
return logs
}
function formatTraceEntry({ vnode, recurseCount }: TraceEntry): any[] {
const postfix =
recurseCount > 0 ? `... (${recurseCount} recursive calls)` : ``
const isRoot = vnode.component ? vnode.component.parent == null : false
const open = ` at <${formatComponentName(
vnode.component,
vnode.type,
isRoot
)}`
const close = `>` + postfix
return vnode.props
? [open, ...formatProps(vnode.props), close]
: [open + close]
}
/* istanbul ignore next */
function formatProps(props: Data): any[] {
const res: any[] = []
const keys = Object.keys(props)
keys.slice(0, 3).forEach(key => {
res.push(...formatProp(key, props[key]))
})
if (keys.length > 3) {
res.push(` ...`)
}
return res
}
function formatProp(key: string, value: unknown): any[]
function formatProp(key: string, value: unknown, raw: true): any
/* istanbul ignore next */
function formatProp(key: string, value: unknown, raw?: boolean): any {
if (isString(value)) {
value = JSON.stringify(value)
return raw ? value : [`${key}=${value}`]
} else if (
typeof value === 'number' ||
typeof value === 'boolean' ||
value == null
) {
return raw ? value : [`${key}=${value}`]
} else if (isRef(value)) {
value = formatProp(key, toRaw(value.value), true)
return raw ? value : [`${key}=Ref<`, value, `>`]
} else if (isFunction(value)) {
return [`${key}=fn${value.name ? `<${value.name}>` : ``}`]
} else {
value = toRaw(value)
return raw ? value : [`${key}=`, value]
}
}
/**
* @internal
*/
export function assertNumber(val: unknown, type: string) {
Iif (!__DEV__) return
if (val === undefined) {
return
} else if (typeof val !== 'number') {
warn(`${type} is not a valid number - ` + `got ${JSON.stringify(val)}.`)
} else if (isNaN(val)) {
warn(`${type} is NaN - ` + 'the duration expression might be incorrect.')
}
}
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