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Modify coverage ranges for code run in VM #524
Description
- Version: v20.8.1
- Platform: Linux 6.6.4-arch1-1
I run certain code like this:
let head = '(function(module, exports, require, __dirname, __filename, ' + argument_config.names.join(', ') + ') {"use strict";\n';
let exported_function = libvm.runInThisContext(head + source + '\n/**/})', {
filename: path,
lineOffset: -1,
});And contrary to nyc, c8 is able to create coverage for this.
Unfortunately, because of the added header the coverage positions are wrong.
Would it be possible for c8 to use the lineOffset or columnOffset property somehow?
Activity
cenfun commentedon Mar 17, 2024
Try
wrapperLengthhttps://github.com/bcoe/c8/blob/main/index.d.ts#L20
skerit commentedon Mar 17, 2024
wrapperLengthis more like a global setting, not something that you can specify for code run using thevmmodule.If being able to dynamically set the wrapper length using comments like
/* c8 wrapper-length 47 */that would be great.Or just being able to "reset" the column count maybe like
/* c8 end wrapper */ericmorand commentedon Oct 26, 2024
What is the point, ultimately? Covering the code provided as
source?Also, how would your idea work with your example? You don't know the length of the wrapper at build time:
The length depend on the
argument_configruntime value. What value would you set in thec8 wrapper-lengthpragma?