new SourceMap(payload[, { lineLengths }])

• payload <Object>

• lineLengths <number[]>

创建新的 sourceMap 实例。

¥Creates a new sourceMap instance.

payload 是一个对象，其键与 源映射格式 匹配：

¥payload is an object with keys matching the Source map format:

• file <string>

• version <number>

• sources <string[]>

• sourcesContent <string[]>

• names <string[]>

• mappings <string>

• sourceRoot <string>

lineLengths 是生成代码中每行长度的可选数组。

¥lineLengths is an optional array of the length of each line in the generated code.