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checker: fix error message when number of generic parameters is incorrect (#14090)

JalonSolov 2022-04-19 11:34:23 -04:00 committed by Jef Roosens
parent 32d7ae7835
commit 43efdd464e
Signed by: Jef Roosens
GPG Key ID: B75D4F293C7052DB
3 changed files with 10 additions and 14 deletions
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12
vlib/v/checker/fn.v
View File

@ -708,8 +708,8 @@ pub fn (mut c Checker) fn_call(mut node ast.CallExpr, mut continue_check &bool)
}
if node.concrete_types.len > 0 && func.generic_names.len > 0
&& node.concrete_types.len != func.generic_names.len {
desc := if node.concrete_types.len > func.generic_names.len { 'many' } else { 'little' }
c.error('too $desc generic parameters got $node.concrete_types.len, expected $func.generic_names.len',
plural := if func.generic_names.len == 1 { '' } else { 's' }
c.error('expected $func.generic_names.len generic parameter$plural, got $node.concrete_types.len',
node.concrete_list_pos)
}
for concrete_type in node.concrete_types {
@ -1231,12 +1231,8 @@ pub fn (mut c Checker) method_call(mut node ast.CallExpr) ast.Type {
}
if node.concrete_types.len > 0 && method.generic_names.len > 0
&& node.concrete_types.len != method.generic_names.len {
desc := if node.concrete_types.len > method.generic_names.len {
'many'
} else {
'little'
}
c.error('too $desc generic parameters got $node.concrete_types.len, expected $method.generic_names.len',
plural := if method.generic_names.len == 1 { '' } else { 's' }
c.error('expected $method.generic_names.len generic parameter$plural, got $node.concrete_types.len',
node.concrete_list_pos)
}
for concrete_type in node.concrete_types {

8
vlib/v/checker/tests/generics_fn_arguments_count_err.out
View File

@ -1,25 +1,25 @@
vlib/v/checker/tests/generics_fn_arguments_count_err.vv:12:18: error: too little generic parameters got 1, expected 2
vlib/v/checker/tests/generics_fn_arguments_count_err.vv:12:18: error: expected 2 generic parameters, got 1
10 |
11 | fn main() {
12 | ret1 := get_name<int>(11, 22)
| ~~~~~
13 | println(ret1)
14 |
vlib/v/checker/tests/generics_fn_arguments_count_err.vv:15:18: error: too many generic parameters got 3, expected 2
vlib/v/checker/tests/generics_fn_arguments_count_err.vv:15:18: error: expected 2 generic parameters, got 3
13 | println(ret1)
14 |
15 | ret2 := get_name<int, int, string>(11, 22, 'hello')
| ~~~~~~~~~~~~~~~~~~
16 | println(ret2)
17 |
vlib/v/checker/tests/generics_fn_arguments_count_err.vv:19:22: error: too little generic parameters got 1, expected 2
vlib/v/checker/tests/generics_fn_arguments_count_err.vv:19:22: error: expected 2 generic parameters, got 1
17 |
18 | foo := Foo{}
19 | ret3 := foo.get_name<int>(11, 22)
| ~~~~~
20 | println(ret3)
21 |
vlib/v/checker/tests/generics_fn_arguments_count_err.vv:22:22: error: too many generic parameters got 3, expected 2
vlib/v/checker/tests/generics_fn_arguments_count_err.vv:22:22: error: expected 2 generic parameters, got 3
20 | println(ret3)
21 |
22 | ret4 := foo.get_name<int, int, string>(11, 22, 'hello')

2
vlib/v/checker/tests/generics_too_many_parameters.out
View File

@ -1,4 +1,4 @@
vlib/v/checker/tests/generics_too_many_parameters.vv:6:8: error: too many generic parameters got 5, expected 1
vlib/v/checker/tests/generics_too_many_parameters.vv:6:8: error: expected 1 generic parameter, got 5
4 |
5 | fn main() {
6 | foo<bool, int, bool, bool, int>(1)