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Fix printing and comparing uninitialized strings

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This commit is contained in:
recloser 2018-10-21 21:18:10 +02:00
commit 2b03bed2db
4 changed files with 20 additions and 9 deletions
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3
lib/system/jssys.nim
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@ -228,6 +228,7 @@ proc cstrToNimstr(c: cstring): string {.asmNoStackFrame, compilerproc.} =
proc toJSStr(s: string): cstring {.asmNoStackFrame, compilerproc.} =
asm """
if (`s` === null) return "";
var len = `s`.length;
var asciiPart = new Array(len);
var fcc = String.fromCharCode;
@ -330,6 +331,8 @@ proc cmp(x, y: string): int =
proc eqStrings(a, b: string): bool {.asmNoStackFrame, compilerProc.} =
asm """
if (`a` == `b`) return true;
if (`a` === null && `b`.length == 0) return true;
if (`b` === null && `a`.length == 0) return true;
if ((!`a`) || (!`b`)) return false;
var alen = `a`.length;
if (alen != `b`.length) return false;