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patch 9.0.2076: Vim9: No support for type aliases

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Problem:  Vim9: No support for type aliases
Solution: Implement :type command

A type definition is giving a name to a type specification.  This also known
type alias.

	:type ListOfStrings = list<string>

The type alias can be used wherever a built-in type can be used.  The type
alias name must start with an upper case character.

closes: #13407

Signed-off-by: Christian Brabandt <cb@256bit.org>
Signed-off-by: Yegappan Lakshmanan <yegappan@yahoo.com>
This commit is contained in:
Yegappan Lakshmanan
2023-10-27 19:35:26 +02:00
committed by Christian Brabandt
parent 4bca4897a1
commit ec3cebbd2b
22 changed files with 710 additions and 36 deletions
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12
src/testdir/test_vim9_class.vim
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@@ -170,7 +170,7 @@ def Test_class_basic()
if A
endif
END
v9.CheckSourceFailure(lines, 'E1319: Using a class as a Number', 4)
v9.CheckSourceFailure(lines, 'E1319: Using a Class as a Number', 4)
# Test for using object as a bool
lines =<< trim END
@@ -181,7 +181,7 @@ def Test_class_basic()
if a
endif
END
v9.CheckSourceFailure(lines, 'E1320: Using an object as a Number', 5)
v9.CheckSourceFailure(lines, 'E1320: Using an Object as a Number', 5)
# Test for using class as a float
lines =<< trim END
@@ -190,7 +190,7 @@ def Test_class_basic()
endclass
sort([1.1, A], 'f')
END
v9.CheckSourceFailure(lines, 'E1321: Using a class as a Float', 4)
v9.CheckSourceFailure(lines, 'E1321: Using a Class as a Float', 4)
# Test for using object as a float
lines =<< trim END
@@ -200,7 +200,7 @@ def Test_class_basic()
var a = A.new()
sort([1.1, a], 'f')
END
v9.CheckSourceFailure(lines, 'E1322: Using an object as a Float', 5)
v9.CheckSourceFailure(lines, 'E1322: Using an Object as a Float', 5)
# Test for using class as a string
lines =<< trim END
@@ -209,7 +209,7 @@ def Test_class_basic()
endclass
:exe 'call ' .. A
END
v9.CheckSourceFailure(lines, 'E1323: Using a class as a String', 4)
v9.CheckSourceFailure(lines, 'E1323: Using a Class as a String', 4)
# Test for using object as a string
lines =<< trim END
@@ -219,7 +219,7 @@ def Test_class_basic()
var a = A.new()
:exe 'call ' .. a
END
v9.CheckSourceFailure(lines, 'E1324: Using an object as a String', 5)
v9.CheckSourceFailure(lines, 'E1324: Using an Object as a String', 5)
# Test creating a class with member variables and methods, calling a object
# method. Check for using type() and typename() with a class and an object.