How does exception work? I am inside a function that calls a
constructor. Inside the constructor, an exception is thrown.
However even though I have wrapped the body of the function
inside a try/catch block, the program crashes from inside that
constructor. Shouldn't the catch block in the function catch the
exception?
Picture should clear it up a little bit:
https://i.imgur.com/3zinoZq.png
// ui.d
103 deviceCombo.addOnChanged(delegate
void(ComboBoxText _) {
104 try {
105 device = new
Device(deviceCombo.getActiveText()); // <-- call sight
106 auto status = sanityCheck(device,
fcb.getFilename);
107 if (status.pass)
108
triggerHboxRevealer.setRevealChild(true);
109 else {
110
deviceCombo.setTooltipText(status.reason);
111
triggerHboxRevealer.setRevealChild(false);
112 }
113 }
114 catch (Exception e) {
115 deviceCombo.setTooltipText("Cannot read
device");
116 triggerHboxRevealer.setRevealChild(false);
117 }
118 });
// backend.d
34 this(in string lsblkLine) {
35 auto lineSplit = lsblkLine.split(" ");
36 name = lineSplit.front();
37 sizePretty = lineSplit.back();
38 foreach (str; lineSplit.dropOne().dropBackOne())
// <-- throws exception
39 model ~= str ~ " ";
40 summary = format("%s\t%s\t%s", name, model,
sizePretty);
41 }
// error message
core.exception.AssertError@/usr/include/dlang/dmd/std/range/primitives.d(2340):
Assertion failure
----------------
??:? _d_assertp [0x4e81ee29]
/usr/include/dlang/dmd/std/range/primitives.d:2340 pure nothrow
@nogc @safe void
std.range.primitives.popBack!(immutable(char)[]).popBack(ref
immutable(char)[][]) [0x4e5e417e]
/usr/include/dlang/dmd/std/range/package.d:3190 pure nothrow
@nogc @safe immutable(char)[][]
std.range.dropBackOne!(immutable(char)[][]).dropBackOne(immutable(char)[][]) [0x4e5e41d4]
source/backend.d:38 backend.Device
backend.Device.__ctor(const(immutable(char)[])) [0x4e5e8e6d]
source/ui.d:105 void
ui.PrimaryWindow.__ctor(gtk.Application.Application).__dgliteral4(gtk.ComboBoxText.ComboBoxText) [0x4e5ea17f]
../../../../.dub/packages/gtk-d-3.8.3/gtk-d/generated/gtkd/gobject/DClosure.d:135
extern (C) void gobject.DClosure.DClosure.d_closure_marshal!(void
delegate(gtk.ComboBoxText.ComboBoxText)).d_closure_marshal(gobject.c.types.GClosure*,
gobject.c.types.GValue*, uint, gobject.c.types.GValue*, void*, void*)
[0x4e7bf095]
??:? g_closure_invoke [0x4f9573d4]
Program exited with code 1
