/**
* Appends the index source map to the given buffer.
*
* @param out The stream to which the map will be appended.
* @param name The name of the generated source file that this source map represents.
* @param sections An ordered list of map sections to include in the index.
* @throws IOException
*/
@Override
public void appendIndexMapTo(Appendable out, String name, List<SourceMapSection> sections)
throws IOException {
// Add the header fields.
out.append("{\n");
appendFirstField(out, "version", "3");
appendField(out, "file", escapeString(name));
// Add the line character maps.
appendFieldStart(out, "sections");
out.append("[\n");
boolean first = true;
for (SourceMapSection section : sections) {
if (first) {
first = false;
} else {
out.append(",\n");
}
out.append("{\n");
appendFirstField(out, "offset", offsetValue(section.getLine(), section.getColumn()));
if (section.getSectionType() == SourceMapSection.SectionType.URL) {
appendField(out, "url", escapeString(section.getSectionValue()));
} else if (section.getSectionType() == SourceMapSection.SectionType.MAP) {
appendField(out, "map", section.getSectionValue());
} else {
throw new IOException("Unexpected section type");
}
out.append("\n}");
}
out.append("\n]");
appendFieldEnd(out);
out.append("\n}\n");
}
