( ast: Statement[], s: MagicString, as: string, )
| 25 | * declaration so that we can inject things into it |
| 26 | */ |
| 27 | export function rewriteDefaultAST( |
| 28 | ast: Statement[], |
| 29 | s: MagicString, |
| 30 | as: string, |
| 31 | ): void { |
| 32 | if (!hasDefaultExport(ast)) { |
| 33 | s.append(`\nconst ${as} = {}`) |
| 34 | return |
| 35 | } |
| 36 | |
| 37 | // if the script somehow still contains `default export`, it probably has |
| 38 | // multi-line comments or template strings. fallback to a full parse. |
| 39 | ast.forEach(node => { |
| 40 | if (node.type === 'ExportDefaultDeclaration') { |
| 41 | if (node.declaration.type === 'ClassDeclaration' && node.declaration.id) { |
| 42 | const start: number = |
| 43 | node.declaration.decorators && node.declaration.decorators.length > 0 |
| 44 | ? node.declaration.decorators[ |
| 45 | node.declaration.decorators.length - 1 |
| 46 | ].end! |
| 47 | : node.start! |
| 48 | s.overwrite(start, node.declaration.id.start!, ` class `) |
| 49 | s.append(`\nconst ${as} = ${node.declaration.id.name}`) |
| 50 | } else { |
| 51 | s.overwrite(node.start!, node.declaration.start!, `const ${as} = `) |
| 52 | } |
| 53 | } else if (node.type === 'ExportNamedDeclaration') { |
| 54 | for (const specifier of node.specifiers) { |
| 55 | if ( |
| 56 | specifier.type === 'ExportSpecifier' && |
| 57 | specifier.exported.type === 'Identifier' && |
| 58 | specifier.exported.name === 'default' |
| 59 | ) { |
| 60 | if (node.source) { |
| 61 | if (specifier.local.name === 'default') { |
| 62 | s.prepend( |
| 63 | `import { default as __VUE_DEFAULT__ } from '${node.source.value}'\n`, |
| 64 | ) |
| 65 | const end = specifierEnd(s, specifier.local.end!, node.end!) |
| 66 | s.remove(specifier.start!, end) |
| 67 | s.append(`\nconst ${as} = __VUE_DEFAULT__`) |
| 68 | continue |
| 69 | } else { |
| 70 | s.prepend( |
| 71 | `import { ${s.slice( |
| 72 | specifier.local.start!, |
| 73 | specifier.local.end!, |
| 74 | )} as __VUE_DEFAULT__ } from '${node.source.value}'\n`, |
| 75 | ) |
| 76 | const end = specifierEnd(s, specifier.exported.end!, node.end!) |
| 77 | s.remove(specifier.start!, end) |
| 78 | s.append(`\nconst ${as} = __VUE_DEFAULT__`) |
| 79 | continue |
| 80 | } |
| 81 | } |
| 82 | |
| 83 | const end = specifierEnd(s, specifier.end!, node.end!) |
| 84 | s.remove(specifier.start!, end) |
no test coverage detected