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Generate valid catch clauses for Python and JavaScript #23

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Merged
mikebarkmin merged 1 commit into from
Sep 28, 2026
Merged

Generate valid catch clauses for Python and JavaScript #23

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15 changes: 14 additions & 1 deletion packages/struktolab/src/common/code-generator.js
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Original file line number Diff line number Diff line change
Expand Up @@ -118,6 +118,19 @@ function countLoopHeader(text, lang) {
}
}

/** The catch text is written Java-style, "Exception e". */
function catchClause(text, lang) {
if (lang === "python") {
const match = /^\s*(\S+)\s+(\w+)\s*$/.exec(text);
return match ? `${match[1]} as ${match[2]}` : text;
}
if (lang === "javascript") {
const match = /(\w+)\s*$/.exec(text);
return match ? match[1] : text;
}
return text;
}

/**
* Generate source code from a struktog tree.
* @param {Object} tree - The struktog tree (root InsertNode)
Expand Down Expand Up @@ -242,7 +255,7 @@ function transform(node, level, t, lang) {
indent(level) +
(t.rightBracket ? t.rightBracket + " " : "") +
t.TryCatchNode.between +
text +
catchClause(text, lang) +
t.TryCatchNode.post +
(t.leftBracket ? " " + t.leftBracket + "\n" : ""),
);
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