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checker: check enum static from_string arguments errors (#19163)

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yuyi 2023-08-18 02:49:45 +08:00 committed by GitHub
parent f4d2ec70a9
commit 757d26cd89
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3 changed files with 56 additions and 0 deletions
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9
vlib/v/checker/fn.v
View File

@ -865,6 +865,15 @@ fn (mut c Checker) fn_call(mut node ast.CallExpr, mut continue_check &bool) ast.
}
idx := c.table.type_idxs[full_enum_name]
ret_typ := ast.Type(idx).set_flag(.option)
if node.args.len != 1 {
c.error('expected 1 argument, but got ${node.args.len}', node.pos)
} else {
node.args[0].typ = c.expr(mut node.args[0].expr)
if node.args[0].typ != ast.string_type {
styp := c.table.type_to_str(node.args[0].typ)
c.error('expected `string` argument, but got `${styp}`', node.pos)
}
}
node.return_type = ret_typ
return ret_typ
}

34
vlib/v/checker/tests/enum_from_string_args_err.out Normal file
View File

@ -0,0 +1,34 @@
vlib/v/checker/tests/enum_from_string_args_err.vv:8:2: error: expected 1 argument, but got 0
6 |
7 | fn main() {
8 | Color.from_string()
| ~~~~~~~~~~~~~~~~~~~
9 | Color.from_string('red', 'blue')
10 | Color.from_string(22)
vlib/v/checker/tests/enum_from_string_args_err.vv:9:2: error: expected 1 argument, but got 2
7 | fn main() {
8 | Color.from_string()
9 | Color.from_string('red', 'blue')
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
10 | Color.from_string(22)
11 | Color.from_string(22.22)
vlib/v/checker/tests/enum_from_string_args_err.vv:10:2: error: expected `string` argument, but got `int literal`
8 | Color.from_string()
9 | Color.from_string('red', 'blue')
10 | Color.from_string(22)
| ~~~~~~~~~~~~~~~~~~~~~
11 | Color.from_string(22.22)
12 | Color.from_string(true)
vlib/v/checker/tests/enum_from_string_args_err.vv:11:2: error: expected `string` argument, but got `float literal`
9 | Color.from_string('red', 'blue')
10 | Color.from_string(22)
11 | Color.from_string(22.22)
| ~~~~~~~~~~~~~~~~~~~~~~~~
12 | Color.from_string(true)
13 | }
vlib/v/checker/tests/enum_from_string_args_err.vv:12:2: error: expected `string` argument, but got `bool`
10 | Color.from_string(22)
11 | Color.from_string(22.22)
12 | Color.from_string(true)
| ~~~~~~~~~~~~~~~~~~~~~~~
13 | }

13
vlib/v/checker/tests/enum_from_string_args_err.vv Normal file
View File

@ -0,0 +1,13 @@
enum Color {
red
green
blue
}
fn main() {
Color.from_string()
Color.from_string('red', 'blue')
Color.from_string(22)
Color.from_string(22.22)
Color.from_string(true)
}