本文整理汇总了TypeScript中babel-traverse.Scope.generateUid方法的典型用法代码示例。如果您正苦于以下问题：TypeScript Scope.generateUid方法的具体用法？TypeScript Scope.generateUid怎么用？TypeScript Scope.generateUid使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类babel-traverse.Scope的用法示例。
在下文中一共展示了Scope.generateUid方法的3个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的TypeScript代码示例。
示例1: generateAnonymousState
export function generateAnonymousState (
scope: Scope,
expression: NodePath<t.Expression>,
refIds: Set<t.Identifier>,
isLogical?: boolean
) {
let variableName = `anonymousState_${scope.generateUid()}`
let statementParent = expression.getStatementParent()
if (!statementParent) {
throw codeFrameError(expression.node.loc, '无法生成匿名 State，尝试先把值赋到一个变量上再把变量调换。')
}
const jsx = isLogical ? expression : expression.findParent(p => p.isJSXElement())
const callExpr = jsx.findParent(p => p.isCallExpression() && isArrayMapCallExpression(p)) as NodePath<t.CallExpression>
const ifExpr = jsx.findParent(p => p.isIfStatement())
const blockStatement = jsx.findParent(p => p.isBlockStatement() && p.parentPath === ifExpr) as NodePath<t.BlockStatement>
const expr = setParentCondition(jsx, cloneDeep(expression.node))
if (!callExpr) {
refIds.add(t.identifier(variableName))
statementParent.insertBefore(
buildConstVariableDeclaration(variableName, expr)
)
if (blockStatement && blockStatement.isBlockStatement()) {
blockStatement.traverse({
VariableDeclarator: (p) => {
const { id, init } = p.node
if (t.isIdentifier(id)) {
const newId = scope.generateDeclaredUidIdentifier('$' + id.name)
refIds.forEach((refId) => {
if (refId.name === variableName && !variableName.startsWith('_$')) {
refIds.delete(refId)
}
})
variableName = newId.name
refIds.add(t.identifier(variableName))
blockStatement.scope.rename(id.name, newId.name)
p.parentPath.replaceWith(
template('ID = INIT;')({ ID: newId, INIT: init })
)
}
}
})
}
} else {
variableName = `${LOOP_STATE}_${callExpr.scope.generateUid()}`
const func = callExpr.node.arguments[0]
if (t.isArrowFunctionExpression(func)) {
if (!t.isBlockStatement(func.body)) {
func.body = t.blockStatement([
buildConstVariableDeclaration(variableName, expr),
t.returnStatement(func.body)
])
} else {
func.body.body.splice(func.body.body.length - 1, 0, buildConstVariableDeclaration(variableName, expr))
}
}
}
const id = t.identifier(variableName)
expression.replaceWith(id)
return id
}示例2: generateAnonymousState
export function generateAnonymousState (
scope: Scope,
expression: NodePath<t.Expression>,
refIds: Set<t.Identifier>,
isLogical?: boolean
) {
let variableName = `anonymousState_${scope.generateUid()}`
let statementParent = expression.getStatementParent()
if (!statementParent) {
throw codeFrameError(expression.node.loc, '无法生成匿名 State，尝试先把值赋到一个变量上再把变量调换。')
}
const jsx = isLogical ? expression : expression.findParent(p => p.isJSXElement())
const callExpr = jsx.findParent(p => p.isCallExpression() && isArrayMapCallExpression(p)) as NodePath<t.CallExpression>
const conditionExpr = jsx.findParent(p => p.isConditionalExpression())
const logicExpr = jsx.findParent(p => p.isLogicalExpression({ operator: '&&' }))
let expr = cloneDeep(expression.node)
if (conditionExpr && conditionExpr.isConditionalExpression()) {
const consequent = conditionExpr.get('consequent')
if (consequent === jsx || jsx.findParent(p => p === consequent)) {
expr = t.conditionalExpression(conditionExpr.get('test').node as any, expr, t.nullLiteral())
}
}
if (logicExpr && logicExpr.isLogicalExpression({ operator: '&&' })) {
const consequent = logicExpr.get('right')
if (consequent === jsx || jsx.findParent(p => p === consequent)) {
expr = t.conditionalExpression(logicExpr.get('left').node as any, expr, t.nullLiteral())
}
}
if (!callExpr) {
refIds.add(t.identifier(variableName))
statementParent.insertBefore(
buildConstVariableDeclaration(variableName, expr)
)
} else {
variableName = `${LOOP_STATE}_${callExpr.scope.generateUid()}`
const func = callExpr.node.arguments[0]
if (t.isArrowFunctionExpression(func)) {
if (!t.isBlockStatement(func.body)) {
func.body = t.blockStatement([
buildConstVariableDeclaration(variableName, expr),
t.returnStatement(func.body)
])
} else {
statementParent.insertBefore(
buildConstVariableDeclaration(variableName, expr)
)
}
}
}
expression.replaceWith(
t.identifier(variableName)
)
}示例3: generateAnonymousState
export function generateAnonymousState (
scope: Scope,
expression: NodePath<t.Expression>,
refIds: Set<t.Identifier>,
isLogical?: boolean
) {
let variableName = `anonymousState_${scope.generateUid()}`
let statementParent = expression.getStatementParent()
if (!statementParent) {
throw codeFrameError(expression.node.loc, '无法生成匿名 State，尝试先把值赋到一个变量上再把变量调换。')
}
const jsx = isLogical ? expression : expression.findParent(p => p.isJSXElement())
const callExpr = jsx.findParent(p => p.isCallExpression() && isArrayMapCallExpression(p)) as NodePath<t.CallExpression>
const ifExpr = jsx.findParent(p => p.isIfStatement())
const blockStatement = jsx.findParent(p => p.isBlockStatement() && p.parentPath === ifExpr) as NodePath<t.BlockStatement>
const expr = setParentCondition(jsx, cloneDeep(expression.node))
if (!callExpr) {
refIds.add(t.identifier(variableName))
statementParent.insertBefore(
buildConstVariableDeclaration(variableName, expr)
)
if (blockStatement && blockStatement.isBlockStatement()) {
blockStatement.traverse({
VariableDeclarator: (path) => {
const { id, init } = path.node
const isArrowFunctionInJSX = path.findParent(p => p.isJSXAttribute() ||
(
p.isAssignmentExpression() && t.isMemberExpression(p.node.left) && t.isThisExpression(p.node.left.object)
&& t.isIdentifier(p.node.left.property) && p.node.left.property.name.startsWith('')
)
)
if (isArrowFunctionInJSX) {
return
}
if (t.isIdentifier(id) && !id.name.startsWith(LOOP_STATE)) {
const newId = scope.generateDeclaredUidIdentifier('$' + id.name)
refIds.forEach((refId) => {
if (refId.name === variableName && !variableName.startsWith('_$')) {
refIds.delete(refId)
}
})
variableName = newId.name
if (Adapter.type === Adapters.quickapp && variableName.startsWith('_$')) {
const newVarName = variableName.slice(2)
scope.rename(variableName, newVarName)
variableName = newVarName
}
refIds.add(t.identifier(variableName))
blockStatement.scope.rename(id.name, newId.name)
path.parentPath.replaceWith(
template('ID = INIT;')({ ID: newId, INIT: init })
)
}
}
})
}
} else {
variableName = `${LOOP_STATE}_${callExpr.scope.generateUid()}`
const func = callExpr.node.arguments[0]
if (t.isArrowFunctionExpression(func)) {
if (!t.isBlockStatement(func.body)) {
func.body = t.blockStatement([
buildConstVariableDeclaration(variableName, expr),
t.returnStatement(func.body)
])
} else {
if (ifExpr && ifExpr.isIfStatement() && ifExpr.findParent(p => p === callExpr)) {
const consequent = ifExpr.get('consequent')
const test = ifExpr.get('test')
if (consequent.isBlockStatement()) {
if (jsx === test || jsx.findParent(p => p === test)) {
func.body.body.unshift(buildConstVariableDeclaration(variableName, expr))
} else {
func.body.body.unshift(t.variableDeclaration('let', [t.variableDeclarator(t.identifier(variableName), t.nullLiteral())]))
consequent.node.body.push(t.expressionStatement(t.assignmentExpression(
'=',
t.identifier(variableName),
expr
)))
}
} else {
throw codeFrameError(consequent.node, 'if 表达式的结果必须由一个花括号包裹')
}
} else {
func.body.body.splice(func.body.body.length - 1, 0, buildConstVariableDeclaration(variableName, expr))
}
}
}
}
const id = t.identifier(variableName)
expression.replaceWith(id)
return id
}