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v/vlib/compiler/tests/repl/immutable_len_fields.repl
Delyan Angelov 53c64abdeb compiler: make compiler an ordinary vlib/compiler module
* Move compiler/ under vlib/compiler/ .

* Add a minimal compiler/main.v driver program.

* Cleanup compiler/main.v .

* Make most compiler tests pass again.

* Apply the fix by @joe-conigliaro , so that the rest of the compiler tests are fixed too.

* Thanks to @avitkauskas, now the vlib/vcompiler/tests/str_gen_test.v test does not need to be special cased anymore.

* Reapply @joe-conigliaro fix for vgen.
2019-10-13 16:37:43 +03:00

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mut s := 'hello world'
s.len = 0 // Error (field len immutable)
mut a := []string
a.len = 0 // Error (field len immutable)
mut ints := []int
ints.len = 0 // Error (field len immutable)
println('BYE')
===output===
.vrepl_temp.v:3:5: cannot modify immutable field `len` (type `string`)
declare the field with `mut:`
struct string {
mut:
len int
}
.vrepl_temp.v:4:5: cannot modify immutable field `len` (type `array`)
declare the field with `mut:`
struct array {
mut:
len int
}
.vrepl_temp.v:5:8: cannot modify immutable field `len` (type `array`)
declare the field with `mut:`
struct array {
mut:
len int
}
BYE