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patch 8.2.2209: Vim9: return type of => lambda not parsed

Problem:    Vim9: return type of => lambda not parsed.
Solution:   Parse and use the return type.
This commit is contained in:
Bram Moolenaar
2020-12-25 12:38:04 +01:00
parent 4aab88d919
commit 9e68c32563
8 changed files with 125 additions and 69 deletions

View File

@@ -1951,7 +1951,7 @@ def Test_expr7_new_lambda()
assert_equal([1, 3, 5], res)
# Lambda returning a dict
var Lmb = () => {key: 42}
var Lmb = () => ({key: 42})
assert_equal({key: 42}, Lmb())
END
CheckDefSuccess(lines)
@@ -1960,11 +1960,16 @@ def Test_expr7_new_lambda()
CheckDefFailure(["var Ref = (a)=> a + 1"], 'E1001:')
CheckDefFailure(["var Ref = (a) =>a + 1"], 'E1001:')
CheckDefSuccess(["var Ref: func(number): string = (a: number): string => 'x'"])
CheckDefSuccess(["var Ref: func(number): any = (a: number): any => 'x'"])
CheckDefFailure(["var Ref: func(number): number = (a: number): string => 'x'"], 'E1012:')
CheckDefFailure(["var Ref: func(number): string = (a: number): string => 99"], 'E1012:')
CheckDefFailure(["filter([1, 2], (k,v) => 1)"], 'E1069:', 1)
# error is in first line of the lambda
CheckDefFailure(["var L = (a) -> a + b"], 'E1001:', 1)
# TODO: lambda after -> doesn't work yet
# TODO: ->(lambda)() doesn't work yet
# assert_equal('xxxyyy', 'xxx'->((a, b) => a .. b)('yyy'))
# CheckDefExecFailure(["var s = 'asdf'->{a -> a}('x')"],
@@ -1973,9 +1978,9 @@ def Test_expr7_new_lambda()
# 'E1106: 2 arguments too many')
# CheckDefFailure(["echo 'asdf'->{a -> a}(x)"], 'E1001:', 1)
CheckDefSuccess(['var Fx = (a) => {k1: 0,', ' k2: 1}'])
CheckDefFailure(['var Fx = (a) => {k1: 0', ' k2: 1}'], 'E722:', 2)
CheckDefFailure(['var Fx = (a) => {k1: 0,', ' k2 1}'], 'E720:', 2)
CheckDefSuccess(['var Fx = (a) => ({k1: 0,', ' k2: 1})'])
CheckDefFailure(['var Fx = (a) => ({k1: 0', ' k2: 1})'], 'E722:', 2)
CheckDefFailure(['var Fx = (a) => ({k1: 0,', ' k2 1})'], 'E720:', 2)
CheckDefSuccess(['var Fx = (a) => [0,', ' 1]'])
CheckDefFailure(['var Fx = (a) => [0', ' 1]'], 'E696:', 2)