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all: change optional to result in most of the libraries (#16123)

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yuyi
2022-10-21 03:14:33 +08:00
committed by GitHub
parent 0d368562f4
commit 51f4d99399
75 changed files with 439 additions and 446 deletions
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12
vlib/arrays/arrays.v
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@ -200,7 +200,7 @@ pub fn window<T>(array []T, attr WindowAttribute) [][]T {
// which means you can only pass array of numbers for now.
// TODO: Fix generic operator overloading detection issue.
// Example: arrays.sum<int>([1, 2, 3, 4, 5])? // => 15
pub fn sum<T>(array []T) ?T {
pub fn sum<T>(array []T) !T {
if array.len == 0 {
return error('Cannot sum up array of nothing.')
} else {
@ -222,8 +222,8 @@ pub fn sum<T>(array []T) ?T {
// returns the accumulated value in `acc`.
// returns an error if the array is empty.
// See also: [fold](#fold).
// Example: arrays.reduce([1, 2, 3, 4, 5], fn (t1 int, t2 int) int { return t1 * t2 })? // => 120
pub fn reduce<T>(array []T, reduce_op fn (acc T, elem T) T) ?T {
// Example: arrays.reduce([1, 2, 3, 4, 5], fn (t1 int, t2 int) int { return t1 * t2 })! // => 120
pub fn reduce<T>(array []T, reduce_op fn (acc T, elem T) T) !T {
if array.len == 0 {
return error('Cannot reduce array of nothing.')
} else {
@ -245,7 +245,7 @@ pub fn reduce<T>(array []T, reduce_op fn (acc T, elem T) T) ?T {
// returns the accumulated value in `acc`.
// returns an error if the array is empty.
// See also: [fold_indexed](#fold_indexed).
pub fn reduce_indexed<T>(array []T, reduce_op fn (idx int, acc T, elem T) T) ?T {
pub fn reduce_indexed<T>(array []T, reduce_op fn (idx int, acc T, elem T) T) !T {
if array.len == 0 {
return error('Cannot reduce array of nothing.')
} else {
@ -427,8 +427,8 @@ pub fn lower_bound<T>(array []T, val T) !T {
}
// returns the largest element <= val, requires `array` to be sorted
// Example: arrays.upper_bound([2, 4, 6, 8], 3)? // => 2
pub fn upper_bound<T>(array []T, val T) ?T {
// Example: arrays.upper_bound([2, 4, 6, 8], 3)! // => 2
pub fn upper_bound<T>(array []T, val T) !T {
if array.len == 0 {
return error('.upper_bound called on an empty array')
}