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[GSoC] userdiff: adding typescript pattern #2251

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[GSoC] userdiff: adding typescript pattern #2251

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f3bb69d
userdiff: adding typescript pattern
Dhruv-0-Arora Mar 22, 2026
d684d93
fix(userdiff): sorted pattern and tests
Dhruv-0-Arora Mar 25, 2026
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7 changes: 7 additions & 0 deletions t/t4018/typescript-class-method
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Original file line number Diff line number Diff line change
@@ -0,0 +1,7 @@
export class RIGHT {
unique = 0
constructor () {
this.doNothing()
}
function ChangeMe() { }
}
7 changes: 7 additions & 0 deletions t/t4018/typescript-export-default-class
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@@ -0,0 +1,7 @@
export default class RIGHT {
private x = 0;
private y = 0;
private z = 0;
// ChangeMe
render() {}
}
7 changes: 7 additions & 0 deletions t/t4018/typescript-export-function
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@@ -0,0 +1,7 @@
export async function RIGHT(url: string): Promise<string> {
const a = 1;
const b = 2;
const c = 3;
ChangeMe
return url;
}
15 changes: 15 additions & 0 deletions userdiff.c
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Expand Up @@ -354,6 +354,21 @@ PATTERNS("scheme",
"|([^][)(}{[ \t])+"),
PATTERNS("tex", "^(\\\\((sub)*section|chapter|part)\\*{0,1}\\{.*)$",
"\\\\[a-zA-Z@]+|\\\\.|([a-zA-Z0-9]|[^\x01-\x7f])+"),
PATTERNS("typescript",
/* Starting with optional whitespace */
"^[ \t]*"
"("
/* Followed by an optional export and/or async and/or default keyword */
"(export[ \t]+)?(default[ \t]+)?(async[ \t]+)?"
/* Followed by either a function or class declaration */
"((function|class)[ \t]+[a-zA-Z_][a-zA-Z0-9_]*[^{]*)"
/* or */
"|"
/* a variable declaration with const, let, or var */
"^(const|let|var)[ \\t]+[a-zA-Z_][a-zA-Z0-9_]*[ \\t]*="
")",
/* -- */
"[a-zA-Z_][a-zA-Z0-9_]*"),
{ .name = "default", .binary = -1 },
};
#undef PATTERNS
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