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cgen: fix nested array equality

pull/5434/head
yuyi 2020-06-20 07:40:33 +08:00 committed by GitHub
parent bbd6d0b4e5
commit 4dc703af2d
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2 changed files with 24 additions and 12 deletions
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12
vlib/v/gen/cgen.v
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@ -2656,15 +2656,15 @@ fn (mut g Gen) assoc(node ast.Assoc) {
}
fn (mut g Gen) gen_array_equality_fn(left table.Type) string {
styp := g.table.value_type(left)
left_sym := g.table.get_type_symbol(left)
typ_name := g.typ(left)
ptr_typ := typ_name[typ_name.index_after('_', 0) + 1..]
elem_sym := g.table.get_type_symbol(left_sym.array_info().elem_type)
mut elem_typ := ''
elem_typ := g.typ(left_sym.array_info().elem_type)
ptr_elem_typ := elem_typ[elem_typ.index_after('_', 0) + 1..]
if elem_sym.kind == .array {
// Recursively generate array element comparison function code and return element type name
elem_typ = g.gen_array_equality_fn(left_sym.array_info().elem_type)
// Recursively generate array element comparison function code if array element is array type
g.gen_array_equality_fn(left_sym.array_info().elem_type)
}
if ptr_typ in g.array_fn_definitions {
return ptr_typ
@ -2675,12 +2675,12 @@ fn (mut g Gen) gen_array_equality_fn(left table.Type) string {
g.definitions.writeln('\t\treturn false;')
g.definitions.writeln('\t}')
g.definitions.writeln('\tfor (int i = 0; i < a.len; i++) {')
if styp == table.string_type_idx {
if elem_sym.kind == .string {
g.definitions.writeln('\t\tif (string_ne(*(($ptr_typ*)((byte*)a.data+(i*a.element_size))), *(($ptr_typ*)((byte*)b.data+(i*b.element_size))))) {')
} else if elem_sym.kind == .struct_ {
g.definitions.writeln('\t\tif (memcmp((byte*)a.data+(i*a.element_size), (byte*)b.data+(i*b.element_size), a.element_size)) {')
} else if elem_sym.kind == .array {
g.definitions.writeln('\t\tif (!${elem_typ}_arr_eq(a, b)) {')
g.definitions.writeln('\t\tif (!${ptr_elem_typ}_arr_eq((($elem_typ*)a.data)[i], (($elem_typ*)b.data)[i])) {')
} else {
g.definitions.writeln('\t\tif (*(($ptr_typ*)((byte*)a.data+(i*a.element_size))) != *(($ptr_typ*)((byte*)b.data+(i*b.element_size)))) {')
}

24
vlib/v/tests/array_equality_test.v
View File

@ -46,10 +46,22 @@ fn test_array_equality() {
}
fn test_nested_array_equality() {
a := [[1]]
assert a == [[1]]
b := [[[[1]]]]
assert b == [[[[1]]]]
c := [[[1,2,3]]]
assert c == [[[1,2,3]]]
a1 := [[1]]
assert a1 == [[1]]
a2 := [[[[1]]]]
assert a2 == [[[[1]]]]
a3 := [[[1,2,3]]]
assert a3 == [[[1,2,3]]]
a4 := [[1.1], [2.2]]
assert a4 == [[1.1], [2.2]]
a5 := [[[[1,2], [2,3], [3,4]]]]
assert a5 == [[[[1,2], [2,3], [3,4]]]]
a6 := [[['aa', 'bb'], ['cc', 'dd']]]
assert a6 == [[['aa', 'bb'], ['cc', 'dd']]]
a7 := [[[true], [false]]]
assert a7 == [[[true], [false]]]
a8 := [[[[`a`, `b`], [`c`, `d`]]]]
assert a8 == [[[[`a`, `b`], [`c`, `d`]]]]
a9 := [[[u16(22), 11]]]
assert a9 == [[[u16(22), 11]]]
}