Exceptions/Catch an exception thrown in a nested call: Difference between revisions

Exceptions/Catch an exception thrown in a nested call (view source)

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Revision as of 16:52, 30 November 2023 (view source) PureFox (talk \| contribs) m (→‎{{header\|Wren}}: Changed to Wren S/H) ← Older edit		Revision as of 01:13, 14 April 2024 (view source) Langurmonkey (talk \| contribs) (→‎{{header\|langur}}) Newer edit →
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Line 23: F baz(i) I i == 0 X.throw U0() E X.throw U1() F bar(i) Line 1,173: foo() { for(i := 0,; i < 2,; i := i + 1) { try Line 2,070: There is no explicit try block. A catch implicitly wraps the instructions preceding it within a block into a try block. ~~Prior to 0.7, you would use .err instead of _err for an implicit exception variable.~~ <syntaxhighlight lang="langur">val .U0 = h{"msg": "U0"} val .U1 = h{"msg": "U1"} val .baz = ffn(.i) throw if(.i==0: .U0; .U1) val .bar = ffn(.i) .baz(.i) val .foo = fimpure fn() { for .i in [0, 1] { .bar(.i) catch { if _err["'msg"] == .U0["'msg"] { writeln "caught .U0 in .foo()" } else { Line 2,092 ⟶ 2,090: } .foo()~~</syntaxhighlight>~~ </syntaxhighlight> {{out}} Line 3,095 ⟶ 3,094: =={{header\|Sidef}}== <syntaxhighlight lang="ruby">func baz(i) { die "U#{i}" }; func bar(i) { baz(i) }; func foo { [0, 1].each { \|i\| try { bar(i) } catch { \|_, msg\| msg ~~ /^U0/ ? say "Function foo() caught exception U0" : die msg; # re-raise the exception }; } } foo();</syntaxhighlight> {{out}} <pre>