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Add Source Maps support #6

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Horcrux7 opened this issue Mar 23, 2019 · 0 comments
Closed

Add Source Maps support #6

Horcrux7 opened this issue Mar 23, 2019 · 0 comments

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@Horcrux7
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To debug a Wasm module it can be helpful to see the original source code.

There is a feature request in the spec WebAssembly/design#1051

For a source map there must be custom section "sourceMappingURL" with the URL to the map.
This URL can relative if the wasm is load with WebAssembly.compileStreaming/instantiateStreaming. In the other case it relative to the baseURL of the web page. The URL can also be a data URI. Then it is inlined.

Currently Firefox support already displaying the source map.

There is a sample: https://github.com/yurydelendik/wasm-source-map-emscripten
Horcrux7 added a commit that referenced this issue Mar 26, 2019
@Horcrux7
passing code position for a source map. #6
97b7b9d
Horcrux7 added a commit that referenced this issue Mar 30, 2019
@Horcrux7
pass sourcefile for a source map. #6
7d8424a
Horcrux7 added a commit that referenced this issue Mar 31, 2019
@Horcrux7
next step for source map #6
0b1ff00
Horcrux7 added a commit that referenced this issue Mar 31, 2019
@Horcrux7
pass the line number to the parsed instructions for a source map gene…
5e40f16 
…ration #6
Horcrux7 added a commit that referenced this issue Mar 31, 2019
@Horcrux7
Write a source map if DebugNames is enabled. #6
ce93ce5
Horcrux7 added a commit that referenced this issue Apr 1, 2019
@Horcrux7
Fix the offset for the source map positions. #6
47430b3
Horcrux7 added a commit that referenced this issue Apr 1, 2019
@Horcrux7
The source map lines are not zero based. Lines are one based. #6
a955493
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@Horcrux7