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JS hotfix for the Internet Explorer up to version 11

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This commit is contained in:
Araq 2018-05-25 23:19:54 +02:00
commit 08637bc272
1 changed files with 14 additions and 1 deletions
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15
lib/system/jssys.nim
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@ -332,7 +332,7 @@ proc cmpStrings(a, b: string): int {.asmNoStackFrame, compilerProc.} =
return `a`.length - `b`.length; return `a`.length - `b`.length;
""" """
proc cmp(x, y: string): int = proc cmp(x, y: string): int =
return cmpStrings(x, y) return cmpStrings(x, y)
proc eqStrings(a, b: string): bool {.asmNoStackFrame, compilerProc.} = proc eqStrings(a, b: string): bool {.asmNoStackFrame, compilerProc.} =
@ -750,3 +750,16 @@ when defined(nodejs):
else: else:
# Deprecated. Use `alert` defined in dom.nim # Deprecated. Use `alert` defined in dom.nim
proc alert*(s: cstring) {.importc, nodecl, deprecated.} proc alert*(s: cstring) {.importc, nodecl, deprecated.}
# Workaround for IE, IE up to version 11 lacks 'Math.trunc'. We produce
# 'Math.trunc' for Nim's ``div`` and ``mod`` operators:
when not defined(nodejs):
{.emit: """
if (!Math.trunc) {
Math.trunc = function(v) {
v = +v;
if (!isFinite(v)) return v;
return (v - v % 1) || (v < 0 ? -0 : v === 0 ? v : 0);
};
}""".}