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helpful warnings/errors from defReaderMacro error

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Nat Quayle Nelson
2021-11-29 16:52:34 -07:00
parent 1f39bcb788
commit 443c71d9e4
1 changed files with 9 additions and 3 deletions
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12
src/kiss/Macros.hx
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@@ -554,13 +554,19 @@ class Macros {
if (streamArgName == null) throw messageForBadArgs;
for (s in strings) {
table[s] = (stream, k) -> {
if (strings.length > 1) {
stream.putBackString(s);
}
var body = CallExp(Symbol("begin").withPos(stream.position()), exps.slice(2)).withPos(stream.position());
Helpers.runAtCompileTime(body, k, [streamArgName => stream, builderArgName => body.expBuilder()]).def;
var startingPos = stream.position();
var body = CallExp(Symbol("begin").withPos(startingPos), exps.slice(2)).withPos(startingPos);
try {
Helpers.runAtCompileTime(body, k, [streamArgName => stream, builderArgName => body.expBuilder()]).def;
} catch (err) {
var expForError = Symbol(s).withPos(startingPos);
CompileError.warnFromExp(wholeExp, 'Error from this reader macro');
throw CompileError.fromExp(expForError, '$err');
}
};
}