[js] Start of nqp::unicmp_s implementation

Doesn't pass all tests yet.
Raku · Nov 22, 2017 · 6f15a2d · 6f15a2d
1 parent e1a2233
commit 6f15a2d
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diff --git a/src/vm/js/Operations.nqp b/src/vm/js/Operations.nqp
@@ -1792,6 +1792,8 @@ class QAST::OperationsJS {
 
     add_simple_op('cpucores', $T_INT, []);
 
+    add_simple_op('unicmp_s', $T_INT, [$T_STR, $T_STR, $T_INT, $T_INT, $T_INT]);
+
     method add_hll_unbox($hll, $type, $method_name) {
         unless nqp::existskey(%hll_unbox, $hll) {
             %hll_unbox{$hll} := nqp::hash();

diff --git a/src/vm/js/nqp-runtime/core.js b/src/vm/js/nqp-runtime/core.js
@@ -1533,6 +1533,19 @@ op.atomicinc_i = function(ctx, ref) {
   return value;
 };
 
+op.unicmp_s = function(a, b, collationMode, language, code) {
+  if (language != 0 || code != 0) {
+    throw new NQPException('collation with a set language NYI');
+  }
+
+  if (collationMode != 85) {
+    throw new NQPException('collationMode NYI');
+  }
+
+  const result = a.localeCompare(b, 'ducet');
+  return (result < 0 ? -1 : (result > 0 ? 1 : 0));
+};
+
 const getrusage = require('qrusage');
 op.getrusage = function() {
   const usage = getrusage();