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authordaurnimator <quae@daurnimator.com>2018-01-06 22:14:27 +1100
committerdaurnimator <quae@daurnimator.com>2018-01-06 22:14:27 +1100
commit9057e6fd7c36d4aa1ec8425f672d63901f041c20 (patch)
treeddcc4fb38ae04f70edd7fa80de0ffe6030064e33 /src
parent28f5e1052c7ee7fb15585621bd7c32ce72c02a82 (diff)
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Support environments without a Uint8Array.from
Diffstat (limited to 'src')
-rw-r--r--src/defs.js22
-rw-r--r--src/lstring.js2
2 files changed, 17 insertions, 7 deletions
diff --git a/src/defs.js b/src/defs.js
index d162636..629e0af 100644
--- a/src/defs.js
+++ b/src/defs.js
@@ -131,16 +131,25 @@ class lua_Debug {
}
+let luastring_from;
+if (typeof Uint8Array.from === "function") {
+ luastring_from = Uint8Array.from.bind(Uint8Array);
+} else {
+ luastring_from = function(a) {
+ let i = 0;
+ let len = a.length;
+ let r = new Uint8Array(len);
+ while (len > i) r[i] = a[i++];
+ return r;
+ };
+}
+
let luastring_of;
if (typeof Uint8Array.of === "function") {
luastring_of = Uint8Array.of.bind(Uint8Array);
} else {
luastring_of = function() {
- let i = 0;
- let len = arguments.length;
- let r = new Uint8Array(len);
- while (len > i) r[i] = arguments[i++];
- return r;
+ return luastring_from(arguments);
};
}
@@ -252,7 +261,7 @@ const to_luastring = function(str, cache) {
outU8Array[outIdx++] = 0x80 | (u & 63);
}
}
- outU8Array = Uint8Array.from(outU8Array);
+ outU8Array = luastring_from(outU8Array);
if (cache) to_luastring_cache[str] = outU8Array;
@@ -442,6 +451,7 @@ module.exports.lua_upvalueindex = lua_upvalueindex;
module.exports.thread_status = thread_status;
module.exports.is_luastring = is_luastring;
module.exports.luastring_cmp = luastring_cmp;
+module.exports.luastring_from = luastring_from;
module.exports.luastring_of = luastring_of;
module.exports.to_jsstring = to_jsstring;
module.exports.to_luastring = to_luastring;
diff --git a/src/lstring.js b/src/lstring.js
index c8da56a..4350165 100644
--- a/src/lstring.js
+++ b/src/lstring.js
@@ -50,7 +50,7 @@ const luaS_bless = function(L, str) {
/* makes a copy */
const luaS_new = function(L, str) {
- return luaS_bless(L, Uint8Array.from(str));
+ return luaS_bless(L, defs.luastring_from(str));
};
/* takes a js string */