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checker: fix enums in builtin (#10366)

This commit is contained in:
Lukas Neubert 2021-06-06 15:27:46 +02:00 committed by GitHub
parent 012f866619
commit c14b357fec
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5 changed files with 57 additions and 8 deletions

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@ -6588,16 +6588,15 @@ pub fn (mut c Checker) index_expr(mut node ast.IndexExpr) ast.Type {
pub fn (mut c Checker) enum_val(mut node ast.EnumVal) ast.Type {
mut typ_idx := if node.enum_name == '' {
c.expected_type.idx()
} else { //
} else {
c.table.find_type_idx(node.enum_name)
}
// println('checker: enum_val: $node.enum_name typeidx=$typ_idx')
if typ_idx == 0 {
// Handle `builtin` enums like `ChanState`, so that `x := ChanState.closed` works.
// In the checker the name for such enums was set to `main.ChanState` instead of
// just `ChanState`.
if node.enum_name.starts_with('main.') {
typ_idx = c.table.find_type_idx(node.enum_name['.main'.len..])
if node.enum_name.starts_with('${c.mod}.') {
typ_idx = c.table.find_type_idx(node.enum_name['${c.mod}.'.len..])
if typ_idx == 0 {
c.error('unknown enum `$node.enum_name` (type_idx=0)', node.pos)
return ast.void_type
@ -6615,7 +6614,6 @@ pub fn (mut c Checker) enum_val(mut node ast.EnumVal) ast.Type {
return ast.void_type
}
mut typ_sym := c.table.get_type_symbol(typ)
// println('tname=$typ_sym.name $node.pos.line_nr $c.file.path')
if typ_sym.kind == .array && node.enum_name.len == 0 {
array_info := typ_sym.info as ast.Array
typ = array_info.elem_type
@ -6633,10 +6631,7 @@ pub fn (mut c Checker) enum_val(mut node ast.EnumVal) ast.Type {
if !(typ_sym.is_public || typ_sym.mod == c.mod) {
c.error('enum `$typ_sym.name` is private', node.pos)
}
// info := typ_sym.info as ast.Enum
info := typ_sym.enum_info()
// rintln('checker: x = $info.x enum val $c.expected_type $typ_sym.name')
// println(info.vals)
if node.val !in info.vals {
suggestion := util.new_suggestion(node.val, info.vals)
c.error(suggestion.say('enum `$typ_sym.name` does not have a value `$node.val`'),

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@ -0,0 +1,25 @@
import os
fn testsuite_begin() {
os.setenv('VCOLORS', 'never', true)
}
fn vroot_path(relpath string) string {
return os.real_path(os.join_path(@VMODROOT, relpath))
}
fn vrun_ok(options string, path string) string {
cmd := '${@VEXE} $options $path'
res := os.execute(cmd)
if res.exit_code != 0 {
eprintln('> failing vrun cmd: $cmd')
eprintln('> output:\n$res.output')
assert res.exit_code == 0
}
return res.output
}
fn test_projects_should_run() {
res := vrun_ok('run', vroot_path('vlib/v/tests/testdata/enum_in_builtin') + os.path_separator)
assert res.trim_space() == 'v0'
}

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@ -0,0 +1,18 @@
module builtin
pub enum BTest_enum {
v0 = 0
v1
v2
v3
v_t
}
pub fn (x BTest_enum) tst_f() string {
match x {
.v0 { return 'v0' }
.v1 { return 'v1' }
.v2 { return 'v2' }
else { return 'v_t' }
}
}

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@ -0,0 +1,6 @@
module c
pub fn tst_enum() {
a := BTest_enum.v0
println(a.tst_f())
}

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@ -0,0 +1,5 @@
import c
fn main() {
c.tst_enum()
}