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break up long string literals if necessary #43

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MichaelBlume wants to merge 2 commits into from
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break up long string literals if necessary #43

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9f4d802
break up long string literals if necessary
Sep 4, 2013
43cbb2d
just use acc.cons
Sep 4, 2013
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19 changes: 19 additions & 0 deletions src/jvm/clojure/lang/Compiler.java
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Original file line number Diff line number Diff line change
Expand Up @@ -6559,6 +6559,8 @@ private static Expr analyzeSeq(C context, ISeq form, String name) {
try
{
Object me = macroexpand1(form);
if (me instanceof String)
me = maybeBreakString((String) me);
if(me != form)
return analyze(context, me, name);

Expand Down Expand Up @@ -7137,6 +7139,21 @@ public static ILookupThunk getLookupThunk(Object target, Keyword k){
return null; //To change body of created methods use File | Settings | File Templates.
}

static final int MAX_STR_LEN = 65535;
static Object maybeBreakString(String literal) {
if (literal.length() <= MAX_STR_LEN)
return literal;
ISeq acc = PersistentList.EMPTY;
int end = literal.length();
while (end > 0)
{
int chunk = Math.min(end, MAX_STR_LEN);
acc = acc.cons(literal.substring(end - chunk, end));
end -= chunk;
}
return acc.cons(Symbol.intern("clojure.core", "str"));
}

static void compile1(GeneratorAdapter gen, ObjExpr objx, Object form) {
Object line = lineDeref();
Object column = columnDeref();
Expand All @@ -7151,6 +7168,8 @@ static void compile1(GeneratorAdapter gen, ObjExpr objx, Object form) {
try
{
form = macroexpand(form);
if (form instanceof String)
form = maybeBreakString((String) form);
if(form instanceof IPersistentCollection && Util.equals(RT.first(form), DO))
{
for(ISeq s = RT.next(form); s != null; s = RT.next(s))
Expand Down
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