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cgen: simplify in index_of_array() and add test (#13792)

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yuyi 2022-03-22 04:03:45 +08:00 committed by GitHub
parent 381cf4b61d
commit f66d2f5d43
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2 changed files with 31 additions and 20 deletions
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29
vlib/v/gen/c/index.v
View File

@ -164,23 +164,22 @@ fn (mut g Gen) index_of_array(node ast.IndexExpr, sym ast.TypeSymbol) {
gen_or := node.or_expr.kind != .absent || node.is_option
left_is_ptr := node.left_type.is_ptr()
info := sym.info as ast.Array
elem_type_str := g.typ(info.elem_type)
mut elem_type_str := g.typ(info.elem_type)
elem_type := info.elem_type
elem_sym := g.table.sym(elem_type)
if elem_sym.kind == .function {
elem_type_str = 'voidptr'
}
// `vals[i].field = x` is an exception and requires `array_get`:
// `(*(Val*)array_get(vals, i)).field = x;`
is_selector := node.left is ast.SelectorExpr
if g.is_assign_lhs && !is_selector && node.is_setter {
is_direct_array_access := (g.fn_decl != 0 && g.fn_decl.is_direct_arr) || node.is_direct
is_op_assign := g.assign_op != .assign && info.elem_type != ast.string_type
array_ptr_type_str := match elem_sym.kind {
.function { 'voidptr*' }
else { '$elem_type_str*' }
}
if is_direct_array_access {
g.write('(($array_ptr_type_str)')
g.write('(($elem_type_str*)')
} else if is_op_assign {
g.write('(*($array_ptr_type_str)array_get(')
g.write('(*($elem_type_str*)array_get(')
if left_is_ptr && !node.left_type.has_flag(.shared_f) {
g.write('*')
}
@ -224,11 +223,7 @@ fn (mut g Gen) index_of_array(node ast.IndexExpr, sym ast.TypeSymbol) {
}
*/
if need_wrapper {
if elem_sym.kind == .function {
g.write(', &(voidptr[]) { ')
} else {
g.write(', &($elem_type_str[]) { ')
}
} else {
g.write(', &')
}
@ -239,10 +234,6 @@ fn (mut g Gen) index_of_array(node ast.IndexExpr, sym ast.TypeSymbol) {
}
} else {
is_direct_array_access := (g.fn_decl != 0 && g.fn_decl.is_direct_arr) || node.is_direct
array_ptr_type_str := match elem_sym.kind {
.function { 'voidptr*' }
else { '$elem_type_str*' }
}
// do not clone inside `opt_ok(opt_ok(&(string[]) {..})` before returns
needs_clone := info.elem_type == ast.string_type_idx && g.is_autofree && !(g.inside_return
&& g.fn_decl.return_type.has_flag(.optional)) && !g.is_assign_lhs
@ -257,7 +248,7 @@ fn (mut g Gen) index_of_array(node ast.IndexExpr, sym ast.TypeSymbol) {
tmp_opt := if gen_or { g.new_tmp_var() } else { '' }
tmp_opt_ptr := if gen_or { g.new_tmp_var() } else { '' }
if gen_or {
g.write('$array_ptr_type_str $tmp_opt_ptr = ($array_ptr_type_str)/*ee elem_ptr_typ */(array_get_with_check(')
g.write('$elem_type_str* $tmp_opt_ptr = ($elem_type_str*)/*ee elem_ptr_typ */(array_get_with_check(')
} else {
if needs_clone {
g.write('/*2*/string_clone(')
@ -266,15 +257,15 @@ fn (mut g Gen) index_of_array(node ast.IndexExpr, sym ast.TypeSymbol) {
if elem_sym.info is ast.FnType {
g.write('((')
g.write_fn_ptr_decl(&elem_sym.info, '')
g.write(')(*($array_ptr_type_str)/*ee elem_sym */array_get(')
g.write(')(*($elem_type_str*)/*ee elem_sym */array_get(')
}
if left_is_ptr && !node.left_type.has_flag(.shared_f) {
g.write('*')
}
} else if is_direct_array_access {
g.write('(($array_ptr_type_str)')
g.write('(($elem_type_str*)')
} else {
g.write('(*($array_ptr_type_str)/*ee elem_sym */array_get(')
g.write('(*($elem_type_str*)/*ee elem_sym */array_get(')
if left_is_ptr && !node.left_type.has_flag(.shared_f) {
g.write('*')
}

20
vlib/v/tests/array_get_anon_fn_value_test.v Normal file
View File

@ -0,0 +1,20 @@
const numbers = [
fn () int {
return 1
},
fn () int {
return 2
},
]
fn test_array_get_anon_fn_value() {
num1 := numbers[0]
ret1 := num1()
println(ret1)
assert ret1 == 1
num2 := numbers[1]
ret2 := num2()
println(ret2)
assert ret2 == 2
}