match array difficulty

system · January 1, 2019, 5:51am


	Attention	Topic was automatically imported from the old Question2Answer platform.
	Asked By	todog

Hi,

New to Godot

Trying to use the “match array” feature but can’t get a match as expected. Ordinary matching works for me.

My code:

enter code here
var s = $PanelCommand/LineEditCommand.text.split(' ', true, 2)
prints(s)
match s:
	[]:
		prints("no command")
	["go", var destination]:
		prints("command go to ", destination)
	["go"]:
		prints("command go")
	["stop"]:
		prints("command stop")
	_:
		prints("no match")

Output with various values:

[go, 1]
no match

[go]
no match

[stop]
no match

no match

I see that split returns PoolStringArray but would have thought match would work with that.

Any clues?

system · January 1, 2019, 9:57am


	Reply From:	hilfazer

Match is not doing implicit type conversions. It was done “to prevent errors”

github.com/godotengine/godot

Implicit type conversion from Real to Int differs between branch statements

opened 06:32AM - 20 Aug 18 UTC

nobuyukinyuu

discussion topic:gdscript

**Godot version:** faa49c1 **Issue description:** Reals with integral value…s seem to be implicitly converted to int for comparisons in `if` blocks, but not with `match` blocks. This probably also affects 3.0.x, but I haven't tested it. **Steps to reproduce:** Using parse_json() to produce TYPE_REAL values that match whole number values. ```gdscript enum matchType { A,B,C } var chunk = parse_json("[0,1,2]") func _ready(): match chunk[0]: matchType.A: print ("This should be the proper response.") 0: print("This should also work, but short-circuiting failed?") _: print("This shouldn't happen.", matchType.A) if chunk[0] == 0: print("Implicit conversion to int works with Ifs, though.") ``` Workaround: Explicitly cast `match` value to Int, where applicable.

Cast s to Array:

match Array(s):

great. that works. thanks.

todog | 2019-01-01 10:43