Frontend prototype: clickable AST/ASR node navigation#129
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amritamishra01 wants to merge 4 commits intolfortran:mainfrom
Open
Frontend prototype: clickable AST/ASR node navigation#129amritamishra01 wants to merge 4 commits intolfortran:mainfrom
amritamishra01 wants to merge 4 commits intolfortran:mainfrom
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@certik I am travelling and would be unable to look into this. Would you be able to take a look, please? |
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I’ve pushed the latest updates. Please let me know if anything else should be refined. video1.mp4 |
Pranavchiku
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Feb 25, 2026
components/LoadLFortran.js
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| lfortran_funcs.emit_ast_from_source = function (source_code) { | ||
| try { return compiler_funcs.emit_ast_from_source(source_code); } | ||
| catch (e) { console.log(e); myPrint(e + "\nERROR: AST could not be generated from the code"); return 0; } | ||
| catch (e) { myPrint(e + "\nERROR: AST could not be generated from the code"); return 0; } |
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| catch (e) { myPrint(e + "\nERROR: AST could not be generated from the code"); return 0; } | |
| catch (e) { CustomPrint(e + "\nERROR: AST could not be generated from the code"); return 0; } |
Pranavchiku
reviewed
Feb 25, 2026
| return compiler_funcs.emit_wasm_from_source(source_code); | ||
| } | ||
| catch (e) { | ||
| console.log(e); |
Pranavchiku
reviewed
Feb 25, 2026
pages/index.js
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Comment on lines
+139
to
+155
| // Demo 1: Tag "Declaration" covering the integer parameter line (Line 2) | ||
| let finalOutput = htmlOutput.replace("Declaration", | ||
| `<span | ||
| data-start-line="2" data-start-col="5" | ||
| data-end-line="2" data-end-col="73" | ||
| style="color: #1890ff; cursor: pointer; font-weight: bold; text-decoration: underline;" | ||
| >Declaration</span>` | ||
| ); | ||
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| // Demo 2: Tag "Subroutine" covering the subroutine definition (Line 9) | ||
| finalOutput = finalOutput.replace("Subroutine", | ||
| `<span | ||
| data-start-line="9" data-start-col="9" | ||
| data-end-line="12" data-end-col="23" | ||
| style="color: #1890ff; cursor: pointer; font-weight: bold; text-decoration: underline;" | ||
| >Subroutine</span>` | ||
| ); |
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I don't see the sense of it. finalOutput gets overwritten.
Pranavchiku
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Feb 25, 2026
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Pranavchiku
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Pranavchiku
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this is solid PR, thank you @amritamishra01! Left a few comments.
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Hi @Pranavchiku , |
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This PR implements a frontend prototype for AST/ASR node → source navigation in the playground.
1.Wrapped selected AST nodes (Declaration, Subroutine) with data-line metadata.
2.Added click handler in ResultBox to extract line numbers.
3.Exposed jumpToLine API from the Editor to enable external navigation.
This currently uses hardcoded line numbers for demonstration. The next step would be integrating real location metadata from the backend serializer.
Closes #17
prototype2.mp4