TypeScript Bundle.append方法代码示例

export default function iife(
	magicString: MagicStringBundle,
	{
		graph,
		namedExportsMode,
		hasExports,
		indentString: t,
		intro,
		outro,
		dependencies,
		exports
	}: FinaliserOptions,
	options: OutputOptions
) {
	const _ = options.compact ? '' : ' ';
	const n = options.compact ? '' : '\n';

	const { extend, name } = options;
	const isNamespaced = name && name.indexOf('.') !== -1;
	const possibleVariableAssignment = !extend && !isNamespaced;

	if (name && possibleVariableAssignment && !isLegal(name)) {
		error({
			code: 'ILLEGAL_IDENTIFIER_AS_NAME',
			message: `Given name (${name}) is not legal JS identifier. If you need this you can try --extend option`
		});
	}

	warnOnBuiltins(graph, dependencies);

	const external = trimEmptyImports(dependencies);
	const deps = external.map(dep => dep.globalName || 'null');
	const args = external.map(m => m.name);

	if (hasExports && !name) {
		error({
			code: 'INVALID_OPTION',
			message: `You must supply output.name for IIFE bundles`
		});
	}

	if (extend) {
		deps.unshift(`(${thisProp(name)}${_}=${_}${thisProp(name)}${_}||${_}{})`);
		args.unshift('exports');
	} else if (namedExportsMode && hasExports) {
		deps.unshift('{}');
		args.unshift('exports');
	}

	const useStrict = options.strict !== false ? `${t}'use strict';${n}${n}` : ``;

	let wrapperIntro = `(function${_}(${args})${_}{${n}${useStrict}`;

	if (hasExports && !extend) {
		wrapperIntro =
			(isNamespaced ? thisProp(name) : `${graph.varOrConst} ${name}`) + `${_}=${_}${wrapperIntro}`;
	}

	if (isNamespaced) {
		wrapperIntro =
			setupNamespace(name, 'this', false, options.globals, options.compact) + wrapperIntro;
	}

	let wrapperOutro = `${n}${n}}(${deps}));`;

	if (!extend && namedExportsMode && hasExports) {
		wrapperOutro = `${n}${n}${t}return exports;${wrapperOutro}`;
	}

	// var foo__default = 'default' in foo ? foo['default'] : foo;
	const interopBlock = getInteropBlock(dependencies, options, graph.varOrConst);
	if (interopBlock) magicString.prepend(interopBlock + n + n);

	if (intro) magicString.prepend(intro);

	const exportBlock = getExportBlock(
		exports,
		dependencies,
		namedExportsMode,
		options.interop,
		options.compact
	);
	if (exportBlock) magicString.append(n + n + exportBlock);
	if (outro) magicString.append(outro);

	return magicString
		.indent(t)
		.prepend(wrapperIntro)
		.append(wrapperOutro);
}

//.........这里部分代码省略.........
	let starExcludes: Set<string>;
	const setters: string[] = [];

	dependencies.forEach(({ imports, reexports }) => {
		const setter: string[] = [];
		if (imports) {
			imports.forEach(specifier => {
				importBindings.push(specifier.local);
				if (specifier.imported === '*') {
					setter.push(`${specifier.local}${_}=${_}module;`);
				} else {
					setter.push(`${specifier.local}${_}=${_}module.${specifier.imported};`);
				}
			});
		}
		if (reexports) {
			let createdSetter = false;
			// bulk-reexport form
			if (
				reexports.length > 1 ||
				(reexports.length === 1 &&
					(reexports[0].reexported === '*' || reexports[0].imported === '*'))
			) {
				// star reexports
				reexports.forEach(specifier => {
					if (specifier.reexported !== '*') return;
					// need own exports list for deduping in star export case
					if (!starExcludes) {
						starExcludes = getStarExcludes({ dependencies, exports });
					}
					if (!createdSetter) {
						setter.push(`${varOrConst} _setter${_}=${_}{};`);
						createdSetter = true;
					}
					setter.push(`for${_}(var _$p${_}in${_}module)${_}{`);
					setter.push(`${t}if${_}(!_starExcludes[_$p])${_}_setter[_$p]${_}=${_}module[_$p];`);
					setter.push('}');
				});
				// star import reexport
				reexports.forEach(specifier => {
					if (specifier.imported !== '*' || specifier.reexported === '*') return;
					setter.push(`exports('${specifier.reexported}',${_}module);`);
				});
				// reexports
				reexports.forEach(specifier => {
					if (specifier.reexported === '*' || specifier.imported === '*') return;
					if (!createdSetter) {
						setter.push(`${varOrConst} _setter${_}=${_}{};`);
						createdSetter = true;
					}
					setter.push(`_setter.${specifier.reexported}${_}=${_}module.${specifier.imported};`);
				});
				if (createdSetter) {
					setter.push('exports(_setter);');
				}
			} else {
				// single reexport
				reexports.forEach(specifier => {
					setter.push(`exports('${specifier.reexported}',${_}module.${specifier.imported});`);
				});
			}
		}
		setters.push(setter.join(`${n}${t}${t}${t}`));
	});

	const registeredName = options.name ? `'${options.name}',${_}` : '';

	let wrapperStart =
		`System.register(${registeredName}[` +
		dependencyIds.join(`,${_}`) +
		`],${_}function${_}(exports,${_}module)${_}{${n}${t}'use strict';` +
		getStarExcludesBlock(starExcludes, varOrConst, _, t, n) +
		getImportBindingsBlock(importBindings, _, t, n) +
		`${n}${t}return${_}{${
			setters.length
				? `${n}${t}${t}setters:${_}[${setters
						.map(s =>
							s
								? `function${_}(module)${_}{${n}${t}${t}${t}${s}${n}${t}${t}}`
								: `function${_}()${_}{}`
						)
						.join(`,${_}`)}],`
				: ''
		}${n}`;
	wrapperStart +=
		`${t}${t}execute:${_}${usesTopLevelAwait ? `async${_}` : ''}function${_}()${_}{${n}${n}` +
		getHoistedExportsBlock(exports, _, t, n);

	const wrapperEnd =
		`${n}${n}` +
		getMissingExportsBlock(exports, _, t, n) +
		`${t}${t}}${n}${t}}${options.compact ? '' : ';'}${n}});`;

	if (intro) magicString.prepend(intro);
	if (outro) magicString.append(outro);
	return magicString
		.indent(`${t}${t}${t}`)
		.append(wrapperEnd)
		.prepend(wrapperStart);
}

//.........这里部分代码省略.........
		factoryArgs.unshift('exports');
	}

	const amdOptions = options.amd || {};

	const amdParams =
		(amdOptions.id ? `'${amdOptions.id}',${_}` : ``) +
		(amdDeps.length ? `[${amdDeps.join(`,${_}`)}],${_}` : ``);

	const define = amdOptions.define || 'define';
	const cjsExport = !namedExportsMode && hasExports ? `module.exports${_}=${_}` : ``;
	const useStrict = options.strict !== false ? `${_}'use strict';${n}` : ``;

	let iifeExport;

	if (options.noConflict === true) {
		const noConflictExportsVar = options.compact ? 'e' : 'exports';
		let factory;

		if (!namedExportsMode && hasExports) {
			factory = `var ${noConflictExportsVar}${_}=${_}${assignToDeepVariable(
				options.name,
				globalVar,
				options.globals,
				options.compact,
				`${factoryVar}(${globalDeps.join(`,${_}`)})`
			)};`;
		} else if (namedExportsMode) {
			const module = globalDeps.shift();
			factory =
				`var ${noConflictExportsVar}${_}=${_}${module};${n}` +
				`${t}${t}${factoryVar}(${[noConflictExportsVar].concat(globalDeps).join(`,${_}`)});`;
		}
		iifeExport =
			`(function${_}()${_}{${n}` +
			`${t}${t}var current${_}=${_}${safeAccess(options.name, globalVar, _)};${n}` +
			`${t}${t}${factory}${n}` +
			`${t}${t}${noConflictExportsVar}.noConflict${_}=${_}function${_}()${_}{${_}` +
			`${globalProp(options.name, globalVar)}${_}=${_}current;${_}return ${noConflictExportsVar}${
				options.compact ? '' : '; '
			}};${n}` +
			`${t}}())`;
	} else {
		iifeExport = `${factoryVar}(${globalDeps.join(`,${_}`)})`;
		if (!namedExportsMode && hasExports) {
			iifeExport = assignToDeepVariable(
				options.name,
				globalVar,
				options.globals,
				options.compact,
				iifeExport
			);
		}
	}

	const iifeNeedsGlobal =
		hasExports || (options.noConflict === true && namedExportsMode) || globalDeps.length > 0;
	const globalParam = iifeNeedsGlobal ? `${globalVar},${_}` : '';
	const globalArg = iifeNeedsGlobal ? `this,${_}` : '';
	const iifeStart = iifeNeedsGlobal ? `(${globalVar}${_}=${_}${globalVar}${_}||${_}self,${_}` : '';
	const iifeEnd = iifeNeedsGlobal ? ')' : '';
	const cjsIntro = iifeNeedsGlobal
		? `${t}typeof exports${_}===${_}'object'${_}&&${_}typeof module${_}!==${_}'undefined'${_}?` +
		  `${_}${cjsExport}${factoryVar}(${cjsDeps.join(`,${_}`)})${_}:${n}`
		: '';

	const wrapperIntro =
		`(function${_}(${globalParam}${factoryVar})${_}{${n}` +
		cjsIntro +
		`${t}typeof ${define}${_}===${_}'function'${_}&&${_}${define}.amd${_}?${_}${define}(${amdParams}${factoryVar})${_}:${n}` +
		`${t}${iifeStart}${iifeExport}${iifeEnd};${n}` +
		`}(${globalArg}function${_}(${factoryArgs.join(', ')})${_}{${useStrict}${n}`;

	const wrapperOutro = n + n + '}));';

	// var foo__default = 'default' in foo ? foo['default'] : foo;
	const interopBlock = getInteropBlock(dependencies, options, varOrConst);
	if (interopBlock) magicString.prepend(interopBlock + n + n);

	if (intro) magicString.prepend(intro);

	const exportBlock = getExportBlock(
		exports,
		dependencies,
		namedExportsMode,
		options.interop,
		options.compact,
		t
	);
	if (exportBlock) magicString.append(n + n + exportBlock);
	if (namedExportsMode && hasExports && options.esModule)
		magicString.append(n + n + (options.compact ? compactEsModuleExport : esModuleExport));
	if (outro) magicString.append(outro);

	return magicString
		.trim()
		.indent(t)
		.append(wrapperOutro)
		.prepend(wrapperIntro);
}

//.........这里部分代码省略.........
					}
					setter.push(`for${_}(var _$p${_}in${_}module)${_}{`);
					setter.push(`${t}if${_}(!_starExcludes[_$p])${_}_setter[_$p]${_}=${_}module[_$p];`);
					setter.push('}');
				});
				// star import reexport
				reexports.forEach(specifier => {
					if (specifier.imported !== '*' || specifier.reexported === '*') return;
					setter.push(`exports('${specifier.reexported}',${_}module);`);
				});
				// reexports
				reexports.forEach(specifier => {
					if (specifier.reexported === '*' || specifier.imported === '*') return;
					if (!createdSetter) {
						setter.push(`${varOrConst} _setter${_}=${_}{};`);
						createdSetter = true;
					}
					setter.push(`_setter.${specifier.reexported}${_}=${_}module.${specifier.imported};`);
				});
				if (createdSetter) {
					setter.push('exports(_setter);');
				}
			} else {
				// single reexport
				reexports.forEach(specifier => {
					setter.push(`exports('${specifier.reexported}',${_}module.${specifier.imported});`);
				});
			}
		}
		setters.push(setter.join(`${n}${t}${t}${t}`));
	});

	// function declarations hoist
	const hoistedExports: string[] = [];

	const hoistedExportObjs = exports.filter(expt => expt.hoisted || expt.uninitialized);
	if (hoistedExportObjs.length === 1) {
		const expt = hoistedExportObjs[0];
		hoistedExports.push(
			`exports('${expt.exported}',${_}${expt.uninitialized ? 'void 0' : expt.local});`
		);
	} else if (hoistedExportObjs.length > 1) {
		hoistedExports.push(`exports({`);
		for (let i = 0; i < hoistedExportObjs.length; i++) {
			const expt = hoistedExportObjs[i];
			hoistedExports.push(
				`${t}${expt.exported}:${_}${expt.uninitialized ? 'void 0' : expt.local}${
					i === hoistedExportObjs.length - 1 ? '' : ','
				}`
			);
		}
		hoistedExports.push(`});`);
	}

	const starExcludesSection = !starExcludes
		? ''
		: `${n}${t}${varOrConst} _starExcludes${_}=${_}{${_}${Array.from(starExcludes).join(
				`:${_}1,${_}`
		  )}${starExcludes.size ? `:${_}1` : ''}${_}};`;

	const importBindingsSection = importBindings.length
		? `${n}${t}var ${importBindings.join(`,${_}`)};`
		: '';
	const registeredName = options.name ? `'${options.name}',${_}` : '';

	let wrapperStart = `System.register(${registeredName}[${dependencyIds.join(
		`,${_}`
	)}],${_}function${_}(exports,${_}module)${_}{${n}`;
	wrapperStart += `${t}'use strict';${starExcludesSection}${importBindingsSection}${n}`;
	wrapperStart += `${t}return${_}{${
		setters.length
			? `${n}${t}${t}setters:${_}[${setters
					.map(
						s =>
							s
								? `function${_}(module)${_}{${n}${t}${t}${t}${s}${n}${t}${t}}`
								: `function${_}()${_}{}`
					)
					.join(`,${_}`)}],`
			: ''
	}${n}`;
	wrapperStart += `${t}${t}execute:${_}${
		usesTopLevelAwait ? `async${_}` : ''
	}function${_}()${_}{${n}${n}`;
	if (hoistedExports.length)
		wrapperStart += `${t}${t}${t}` + hoistedExports.join(`${n}${t}${t}${t}`) + n + n;

	let wrapperEnd = `${n}${n}${t}${t}}`;
	wrapperEnd += `${n}${t}}${options.compact ? '' : ';'}`;
	wrapperEnd += `${n}});`;

	if (intro) magicString.prepend(intro);

	if (outro) magicString.append(outro);

	return magicString
		.indent(`${t}${t}${t}`)
		.append(wrapperEnd)
		.prepend(wrapperStart);
}

export default function amd(
	magicString: MagicStringBundle,
	{
		graph,
		namedExportsMode,
		hasExports,
		indentString,
		intro,
		outro,
		dynamicImport,
		needsAmdModule,
		dependencies,
		exports,
		isEntryModuleFacade
	}: FinaliserOptions,
	options: OutputOptions
) {
	warnOnBuiltins(graph, dependencies);

	const deps = dependencies.map(m => `'${m.id}'`);
	const args = dependencies.map(m => m.name);
	const n = options.compact ? '' : '\n';
	const _ = options.compact ? '' : ' ';

	if (namedExportsMode && hasExports) {
		args.unshift(`exports`);
		deps.unshift(`'exports'`);
	}

	if (dynamicImport) {
		args.unshift('require');
		deps.unshift(`'require'`);
	}

	if (needsAmdModule) {
		args.unshift('module');
		deps.unshift(`'module'`);
	}

	const amdOptions = options.amd || {};

	const params =
		(amdOptions.id ? `'${amdOptions.id}',${_}` : ``) +
		(deps.length ? `[${deps.join(`,${_}`)}],${_}` : ``);

	const useStrict = options.strict !== false ? `${_}'use strict';` : ``;
	const define = amdOptions.define || 'define';
	const wrapperStart = `${define}(${params}function${_}(${args.join(
		`,${_}`
	)})${_}{${useStrict}${n}${n}`;

	// var foo__default = 'default' in foo ? foo['default'] : foo;
	const interopBlock = getInteropBlock(dependencies, options, graph.varOrConst);
	if (interopBlock) magicString.prepend(interopBlock + n + n);

	if (intro) magicString.prepend(intro);

	const exportBlock = getExportBlock(
		exports,
		dependencies,
		namedExportsMode,
		options.interop,
		options.compact
	);
	if (exportBlock) magicString.append(n + n + exportBlock);
	if (namedExportsMode && hasExports && isEntryModuleFacade && options.esModule)
		magicString.append(`${n}${n}${options.compact ? compactEsModuleExport : esModuleExport}`);
	if (outro) magicString.append(outro);

	return magicString
		.indent(indentString)
		.append(n + n + '});')
		.prepend(wrapperStart);
}

export default function cjs(
	magicString: MagicStringBundle,
	{
		dependencies,
		exports,
		hasExports,
		indentString: t,
		intro,
		isEntryModuleFacade,
		namedExportsMode,
		outro,
		varOrConst
	}: FinaliserOptions,
	options: OutputOptions
) {
	const n = options.compact ? '' : '\n';
	const _ = options.compact ? '' : ' ';

	intro =
		(options.strict === false ? intro : `'use strict';${n}${n}${intro}`) +
		(namedExportsMode && hasExports && isEntryModuleFacade && options.esModule
			? `${options.compact ? compactEsModuleExport : esModuleExport}${n}${n}`
			: '');

	let needsInterop = false;
	const interop = options.interop !== false;
	let importBlock: string;

	let definingVariable = false;
	importBlock = '';
	for (const {
		id,
		namedExportsMode,
		isChunk,
		name,
		reexports,
		imports,
		exportsNames,
		exportsDefault
	} of dependencies) {
		if (!reexports && !imports) {
			if (importBlock) {
				importBlock += !options.compact || definingVariable ? `;${n}` : ',';
			}
			definingVariable = false;
			importBlock += `require('${id}')`;
		} else {
			importBlock +=
				options.compact && definingVariable ? ',' : `${importBlock ? `;${n}` : ''}${varOrConst} `;
			definingVariable = true;

			if (!interop || isChunk || !exportsDefault || !namedExportsMode) {
				importBlock += `${name}${_}=${_}require('${id}')`;
			} else {
				needsInterop = true;
				if (exportsNames)
					importBlock += `${name}${_}=${_}require('${id}')${
						options.compact ? ',' : `;\n${varOrConst} `
					}${name}__default${_}=${_}${INTEROP_DEFAULT_VARIABLE}(${name})`;
				else importBlock += `${name}${_}=${_}${INTEROP_DEFAULT_VARIABLE}(require('${id}'))`;
			}
		}
	}
	if (importBlock) importBlock += ';';

	if (needsInterop) {
		const ex = options.compact ? 'e' : 'ex';
		intro +=
			`function ${INTEROP_DEFAULT_VARIABLE}${_}(${ex})${_}{${_}return${_}` +
			`(${ex}${_}&&${_}(typeof ${ex}${_}===${_}'object')${_}&&${_}'default'${_}in ${ex})${_}` +
			`?${_}${ex}['default']${_}:${_}${ex}${options.compact ? '' : '; '}}${n}${n}`;
	}

	if (importBlock) intro += importBlock + n + n;

	const exportBlock = getExportBlock(
		exports,
		dependencies,
		namedExportsMode,
		options.interop,
		options.compact,
		t,
		`module.exports${_}=${_}`
	);

	magicString.prepend(intro);

	if (exportBlock) magicString.append(n + n + exportBlock);
	if (outro) magicString.append(outro);

	return magicString;
}

//.........这里部分代码省略.........
	const n = options.compact ? '' : '\n';

	const importBlock = dependencies
		.map(({ id, reexports, imports, name }) => {
			if (!reexports && !imports) {
				return `import${_}'${id}';`;
			}
			let output = '';
			if (imports) {
				const defaultImport = imports.find(specifier => specifier.imported === 'default');
				const starImport = imports.find(specifier => specifier.imported === '*');
				if (starImport) {
					output += `import${_}*${_}as ${starImport.local} from${_}'${id}';`;
					if (imports.length > 1) output += n;
				}
				if (defaultImport && imports.length === 1) {
					output += `import ${defaultImport.local} from${_}'${id}';`;
				} else if (!starImport || imports.length > 1) {
					output += `import ${defaultImport ? `${defaultImport.local},${_}` : ''}{${_}${imports
						.filter(specifier => specifier !== defaultImport && specifier !== starImport)
						.map(specifier => {
							if (specifier.imported === specifier.local) {
								return specifier.imported;
							} else {
								return `${specifier.imported} as ${specifier.local}`;
							}
						})
						.join(`,${_}`)}${_}}${_}from${_}'${id}';`;
				}
			}
			if (reexports) {
				if (imports) output += n;
				const starExport = reexports.find(specifier => specifier.reexported === '*');
				const namespaceReexport = reexports.find(
					specifier => specifier.imported === '*' && specifier.reexported !== '*'
				);
				if (starExport) {
					output += `export${_}*${_}from${_}'${id}';`;
					if (reexports.length === 1) {
						return output;
					}
					output += n;
				}
				if (namespaceReexport) {
					if (
						!imports ||
						!imports.some(specifier => specifier.imported === '*' && specifier.local === name)
					)
						output += `import${_}*${_}as ${name} from${_}'${id}';${n}`;
					output += `export${_}{${_}${
						name === namespaceReexport.reexported
							? name
							: `${name} as ${namespaceReexport.reexported}`
					} };`;
					if (reexports.length === (starExport ? 2 : 1)) {
						return output;
					}
					output += n;
				}
				output += `export${_}{${_}${reexports
					.filter(specifier => specifier !== starExport && specifier !== namespaceReexport)
					.map(specifier => {
						if (specifier.imported === specifier.reexported) {
							return specifier.imported;
						} else {
							return `${specifier.imported} as ${specifier.reexported}`;
						}
					})
					.join(`,${_}`)}${_}}${_}from${_}'${id}';`;
			}
			return output;
		})
		.join(n);

	if (importBlock) intro += importBlock + n + n;
	if (intro) magicString.prepend(intro);

	const exportBlock: string[] = [];
	const exportDeclaration: string[] = [];
	exports.forEach(specifier => {
		if (specifier.exported === 'default') {
			exportBlock.push(`export default ${specifier.local};`);
		} else {
			exportDeclaration.push(
				specifier.exported === specifier.local
					? specifier.local
					: `${specifier.local} as ${specifier.exported}`
			);
		}
	});
	if (exportDeclaration.length) {
		exportBlock.push(`export${_}{${_}${exportDeclaration.join(`,${_}`)}${_}};`);
	}

	if (exportBlock.length) magicString.append(n + n + exportBlock.join(n).trim());

	if (outro) magicString.append(outro);

	return magicString.trim();
}

//.........这里部分代码省略.........
	if (hasExports && !options.name) {
		error({
			code: 'INVALID_OPTION',
			message: 'You must supply output.name for UMD bundles'
		});
	}

	warnOnBuiltins(graph, dependencies);

	const amdDeps = dependencies.map(m => `'${m.id}'`);
	const cjsDeps = dependencies.map(m => `require('${m.id}')`);

	const trimmed = trimEmptyImports(dependencies);
	const globalDeps = trimmed.map(module => globalProp(module.globalName));
	const args = trimmed.map(m => m.name);

	if (namedExportsMode && hasExports) {
		amdDeps.unshift(`'exports'`);
		cjsDeps.unshift(`exports`);
		globalDeps.unshift(
			`(${setupNamespace(options.name, 'global', true, options.globals, options.compact)}${_}=${_}${
				options.extend ? `${globalProp(options.name)}${_}||${_}` : ''
			}{})`
		);

		args.unshift('exports');
	}

	const amdOptions = options.amd || {};

	const amdParams =
		(amdOptions.id ? `'${amdOptions.id}',${_}` : ``) +
		(amdDeps.length ? `[${amdDeps.join(`,${_}`)}],${_}` : ``);

	const define = amdOptions.define || 'define';

	const cjsExport = !namedExportsMode && hasExports ? `module.exports${_}=${_}` : ``;
	const defaultExport =
		!namedExportsMode && hasExports
			? `${setupNamespace(options.name, 'global', true, options.globals, options.compact)}${_}=${_}`
			: '';

	const useStrict = options.strict !== false ? `${_}'use strict';${n}` : ``;

	let globalExport;

	if (options.noConflict === true) {
		let factory;

		if (!namedExportsMode && hasExports) {
			factory = `var exports${_}=${_}factory(${globalDeps});`;
		} else if (namedExportsMode) {
			const module = globalDeps.shift();
			factory = `var exports${_}=${_}${module};${n}`;
			factory += `${t}${t}factory(${['exports'].concat(globalDeps)});`;
		}
		globalExport = `(function()${_}{${n}`;
		globalExport += `${t}${t}var current${_}=${_}${safeAccess(options.name, options.compact)};${n}`;
		globalExport += `${t}${t}${factory}${n}`;
		globalExport += `${t}${t}${globalProp(options.name)}${_}=${_}exports;${n}`;
		globalExport += `${t}${t}exports.noConflict${_}=${_}function()${_}{${_}`;
		globalExport += `${globalProp(options.name)}${_}=${_}current;${_}return exports${
			options.compact ? '' : '; '
		}};${n}`;
		globalExport += `${t}})()`;
	} else {
		globalExport = `(${defaultExport}factory(${globalDeps}))`;
	}

	let wrapperIntro = `(function${_}(global,${_}factory)${_}{${n}`;
	wrapperIntro += `${t}typeof exports${_}===${_}'object'${_}&&${_}typeof module${_}!==${_}'undefined'${_}?`;
	wrapperIntro += `${_}${cjsExport}factory(${cjsDeps.join(`,${_}`)})${_}:${n}`;
	wrapperIntro += `${t}typeof ${define}${_}===${_}'function'${_}&&${_}${define}.amd${_}?${_}${define}(${amdParams}factory)${_}:${n}`;
	wrapperIntro += `${t}${globalExport};${n}`;
	wrapperIntro += `}(this,${_}(function${_}(${args})${_}{${useStrict}${n}`;

	// var foo__default = 'default' in foo ? foo['default'] : foo;
	const interopBlock = getInteropBlock(dependencies, options, graph.varOrConst);
	if (interopBlock) magicString.prepend(interopBlock + n + n);

	if (intro) magicString.prepend(intro);

	const exportBlock = getExportBlock(
		exports,
		dependencies,
		namedExportsMode,
		options.interop,
		options.compact
	);
	if (exportBlock) magicString.append(n + n + exportBlock);
	if (namedExportsMode && hasExports && options.esModule)
		magicString.append(n + n + (options.compact ? compactEsModuleExport : esModuleExport));
	if (outro) magicString.append(outro);

	return magicString
		.trim()
		.indent(t)
		.append(wrapperOutro)
		.prepend(wrapperIntro);
}

//.........这里部分代码省略.........

	let needsInterop = false;

	const varOrConst = graph.varOrConst;
	const interop = options.interop !== false;

	let importBlock: string;

	if (options.compact) {
		let definingVariable = false;
		importBlock = '';

		dependencies.forEach(
			({
				id,
				namedExportsMode,
				isChunk,
				name,
				reexports,
				imports,
				exportsNames,
				exportsDefault
			}) => {
				if (!reexports && !imports) {
					importBlock += definingVariable ? ';' : ',';
					definingVariable = false;
					importBlock += `require('${id}')`;
				} else {
					importBlock += definingVariable ? ',' : `${importBlock ? ';' : ''}${varOrConst} `;
					definingVariable = true;

					if (!interop || isChunk || !exportsDefault || !namedExportsMode) {
						importBlock += `${name}=require('${id}')`;
					} else {
						needsInterop = true;
						if (exportsNames)
							importBlock += `${name}=require('${id}'),${name}__default=_interopDefault(${name})`;
						else importBlock += `${name}=_interopDefault(require('${id}'))`;
					}
				}
			}
		);
		if (importBlock.length) importBlock += ';';
	} else {
		importBlock = dependencies
			.map(
				({
					id,
					namedExportsMode,
					isChunk,
					name,
					reexports,
					imports,
					exportsNames,
					exportsDefault
				}) => {
					if (!reexports && !imports) return `require('${id}');`;

					if (!interop || isChunk || !exportsDefault || !namedExportsMode)
						return `${varOrConst} ${name} = require('${id}');`;

					needsInterop = true;

					if (exportsNames)
						return (
							`${varOrConst} ${name} = require('${id}');` +
							`\n${varOrConst} ${name}__default = _interopDefault(${name});`
						);

					return `${varOrConst} ${name} = _interopDefault(require('${id}'));`;
				}
			)
			.join('\n');
	}

	if (needsInterop) {
		if (options.compact)
			intro += `function _interopDefault(e){return(e&&(typeof e==='object')&&'default'in e)?e['default']:e}`;
		else
			intro += `function _interopDefault (ex) { return (ex && (typeof ex === 'object') && 'default' in ex) ? ex['default'] : ex; }\n\n`;
	}

	if (importBlock) intro += importBlock + n + n;

	const exportBlock = getExportBlock(
		exports,
		dependencies,
		namedExportsMode,
		options.interop,
		options.compact,
		`module.exports${_}=${_}`
	);

	magicString.prepend(intro);

	if (exportBlock) magicString.append(n + n + exportBlock);
	if (outro) magicString.append(outro);

	return magicString;
}