Method parseSourceMap

parser/statement.go:915–958

()

}

func (self *_parser) parseSourceMap() *sourcemap.Consumer {
	if self.opts.disableSourceMaps {
		return nil
	}
	if smLine := extractSourceMapLine(self.str); smLine != "" {
		urlIndex := strings.Index(smLine, "=")
		urlStr := smLine[urlIndex+1:]

		var data []byte
		var err error
		if strings.HasPrefix(urlStr, "data:application/json") {
			b64Index := strings.Index(urlStr, ",")
			b64 := urlStr[b64Index+1:]
			data, err = base64.StdEncoding.DecodeString(b64)
		} else {
			if sourceURL := file.ResolveSourcemapURL(self.file.Name(), urlStr); sourceURL != nil {
				if self.opts.sourceMapLoader != nil {
					data, err = self.opts.sourceMapLoader(sourceURL.String())
				} else {
					if sourceURL.Scheme == "" || sourceURL.Scheme == "file" {
						data, err = os.ReadFile(sourceURL.Path)
					} else {
						err = fmt.Errorf("unsupported source map URL scheme: %s", sourceURL.Scheme)
					}
				}
			}
		}

		if err != nil {
			self.error(file.Idx(0), "Could not load source map: %v", err)
			return nil
		}
		if data == nil {
			return nil
		}

		if sm, err := sourcemap.Parse(self.file.Name(), data); err == nil {
			return sm
		} else {
			self.error(file.Idx(0), "Could not parse source map: %v", err)
		}
	}
	return nil
}

func (self *_parser) parseBreakStatement() ast.Statement {
	idx := self.expect(token.BREAK)