本文整理匯總了TypeScript中ast-types.builders.variableDeclaration方法的典型用法代碼示例。如果您正苦於以下問題：TypeScript builders.variableDeclaration方法的具體用法？TypeScript builders.variableDeclaration怎麽用？TypeScript builders.variableDeclaration使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類ast-types.builders的用法示例。
在下文中一共展示了builders.variableDeclaration方法的4個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的TypeScript代碼示例。
示例1: function
visitProgram: function(path: IPath<ESTree.Program>): boolean {
if (path.scope.lookup('Buffer') === null) {
const bufferPath = getModulePath('.', 'buffer', context);
const bufferIndex = getModuleIndex(bufferPath);
const body = path.get<ESTree.Statement[]>('body');
body.get(body.value.length - 1).insertBefore(
b.variableDeclaration(
'var',
[
b.variableDeclarator(
b.identifier('Buffer'),
b.memberExpression(
b.memberExpression(
b.callExpression(
b.identifier('__paeckchen_require__'),
[
b.literal(bufferIndex)
]
),
b.identifier('exports'),
false
),
b.identifier('Buffer'),
false
)
)
]
)
);
enqueueModule(bufferPath);
}
return false;
}示例2: importModule
/**
* var identifier = modules[moduleIndex]();
*/
function importModule(identifier: ESTree.Identifier, moduleIndex: number): ESTree.VariableDeclaration {
return b.variableDeclaration(
'var',
[
b.variableDeclarator(
identifier,
b.callExpression(
b.identifier('__paeckchen_require__'),
[
b.literal(moduleIndex)
]
)
)
]
);
}示例3: function
visitImportDeclaration: function(path: IPath<ESTree.ImportDeclaration>): boolean {
const source = path.node.source;
if (n.Literal.check(source)) {
const importModule = getModulePath(currentModule, source.value as string, context);
const importModuleIndex = getModuleIndex(importModule);
const loc = (pos: ESTree.Position) => `${pos.line}_${pos.column}`;
const tempIdentifier = b.identifier(`__import${importModuleIndex}_${loc(path.node.loc.start)}`);
const imports = path.node.specifiers.map((specifier) => {
if (n.ImportSpecifier.check(specifier)) {
// e.g. import { a as b, c } from './dep';
return b.variableDeclarator(
b.identifier(specifier.local.name),
b.memberExpression(
b.memberExpression(
tempIdentifier,
b.identifier('exports'),
false
),
b.literal(specifier.imported.name),
true
)
);
} else if (n.ImportDefaultSpecifier.check(specifier)) {
// e.g. import dep from './dep';
return b.variableDeclarator(
b.identifier(specifier.local.name),
b.memberExpression(
b.memberExpression(
tempIdentifier,
b.identifier('exports'),
false
),
b.literal('default'),
true
)
);
} else if (n.ImportNamespaceSpecifier.check(specifier)) {
// e.g. import * as dep from './dep';
return b.variableDeclarator(
b.identifier(specifier.local.name),
b.memberExpression(
tempIdentifier,
b.identifier('exports'),
false
)
);
}
});
path.replace(
b.variableDeclaration(
'var',
[
b.variableDeclarator(
tempIdentifier,
b.callExpression(
b.identifier('__paeckchen_require__'),
[
b.literal(importModuleIndex)
]
)
),
...imports
]
)
);
enqueueModule(importModule);
}
return false;
}示例4: function
visitExportNamedDeclaration: function (path: IPath<ESTree.ExportNamedDeclaration>): boolean {
if (path.node.declaration) {
const declaration = path.node.declaration;
if (n.VariableDeclaration.check(declaration)) {
// e.g. export var a = 0;
const id = declaration.declarations[0].id;
path.replace(declaration);
path.insertAfter(
b.expressionStatement(
b.assignmentExpression(
'=',
moduleExportsExpression((id as ESTree.Identifier).name),
b.identifier((id as ESTree.Identifier).name)
)
)
);
} else if (n.FunctionDeclaration.check(declaration) || n.ClassDeclaration.check(declaration)) {
// e.g. export function f() {}
path.replace(declaration);
path.insertAfter(
b.expressionStatement(
b.assignmentExpression(
'=',
moduleExportsExpression(declaration.id.name),
b.identifier(declaration.id.name)
)
)
);
}
} else {
if (path.node.source) {
// e.g. export {a as b} from './c';
const reexportModuleName = getModulePath(currentModule, path.node.source.value as string, context);
const reexportModuleIndex = getModuleIndex(reexportModuleName);
const loc = (pos: ESTree.Position) => `${pos.line}_${pos.column}`;
const tempIdentifier = b.identifier(`__export${reexportModuleIndex}_${loc(path.node.loc.start)}`);
const exports = path.node.specifiers
.map(specifier =>
b.expressionStatement(
b.assignmentExpression(
'=',
moduleExportsExpression(specifier.exported.name),
b.memberExpression(
b.memberExpression(
tempIdentifier,
b.identifier('exports'),
false
),
b.literal(specifier.local.name),
true
)
)
)
);
path.replace(
b.variableDeclaration(
'var',
[
b.variableDeclarator(
tempIdentifier,
b.callExpression(
b.identifier('__paeckchen_require__'),
[
b.literal(reexportModuleIndex)
]
)
)
]
),
...exports
);
enqueueModule(reexportModuleName);
} else {
// e.g. export {a as b};
const exports = path.node.specifiers
.map(specifier =>
b.expressionStatement(
b.assignmentExpression(
'=',
moduleExportsExpression(specifier.exported.name),
b.literal(specifier.local.name)
)
)
);
path.replace(...exports);
}
}
return false;
},