211 lines
9.0 KiB
V
211 lines
9.0 KiB
V
// Copyright (c) 2019-2021 Alexander Medvednikov. All rights reserved.
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// Use of this source code is governed by an MIT license that can be found in the LICENSE file.
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module gen
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import strings
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import v.table
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fn (mut g Gen) gen_struct_equality_fn(left table.Type) string {
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ptr_typ := g.typ(left).trim('*')
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if ptr_typ in g.struct_fn_definitions {
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return ptr_typ
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}
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g.struct_fn_definitions << ptr_typ
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left_sym := g.table.get_type_symbol(left)
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info := left_sym.struct_info()
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g.type_definitions.writeln('static bool ${ptr_typ}_struct_eq($ptr_typ a, $ptr_typ b); // auto')
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mut fn_builder := strings.new_builder(512)
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fn_builder.writeln('static bool ${ptr_typ}_struct_eq($ptr_typ a, $ptr_typ b) {')
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for field in info.fields {
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sym := g.table.get_type_symbol(field.typ)
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if sym.kind == .string {
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fn_builder.writeln('\tif (string_ne(a.$field.name, b.$field.name)) {')
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} else if sym.kind == .struct_ && !field.typ.is_ptr() {
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eq_fn := g.gen_struct_equality_fn(field.typ)
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fn_builder.writeln('\tif (!${eq_fn}_struct_eq(a.$field.name, b.$field.name)) {')
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} else if sym.kind == .array && !field.typ.is_ptr() {
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eq_fn := g.gen_array_equality_fn(field.typ)
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fn_builder.writeln('\tif (!${eq_fn}_arr_eq(a.$field.name, b.$field.name)) {')
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} else if sym.kind == .array_fixed && !field.typ.is_ptr() {
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eq_fn := g.gen_fixed_array_equality_fn(field.typ)
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fn_builder.writeln('\tif (!${eq_fn}_arr_eq(a.$field.name, b.$field.name)) {')
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} else if sym.kind == .map && !field.typ.is_ptr() {
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eq_fn := g.gen_map_equality_fn(field.typ)
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fn_builder.writeln('\tif (!${eq_fn}_map_eq(a.$field.name, b.$field.name)) {')
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} else if sym.kind == .function {
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fn_builder.writeln('\tif (*((voidptr*)(a.$field.name)) != *((voidptr*)(b.$field.name))) {')
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} else {
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fn_builder.writeln('\tif (a.$field.name != b.$field.name) {')
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}
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fn_builder.writeln('\t\treturn false;')
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fn_builder.writeln('\t}')
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}
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fn_builder.writeln('\treturn true;')
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fn_builder.writeln('}')
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g.auto_fn_definitions << fn_builder.str()
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return ptr_typ
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}
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fn (mut g Gen) gen_array_equality_fn(left table.Type) string {
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ptr_typ := g.typ(left).trim('*')
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if ptr_typ in g.array_fn_definitions {
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return ptr_typ
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}
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g.array_fn_definitions << ptr_typ
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left_sym := g.table.get_type_symbol(left)
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elem_typ := left_sym.array_info().elem_type
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ptr_elem_typ := g.typ(elem_typ)
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elem_sym := g.table.get_type_symbol(elem_typ)
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g.type_definitions.writeln('static bool ${ptr_typ}_arr_eq($ptr_typ a, $ptr_typ b); // auto')
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mut fn_builder := strings.new_builder(512)
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fn_builder.writeln('static bool ${ptr_typ}_arr_eq($ptr_typ a, $ptr_typ b) {')
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fn_builder.writeln('\tif (a.len != b.len) {')
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fn_builder.writeln('\t\treturn false;')
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fn_builder.writeln('\t}')
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fn_builder.writeln('\tfor (int i = 0; i < a.len; ++i) {')
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// compare every pair of elements of the two arrays
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if elem_sym.kind == .string {
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fn_builder.writeln('\t\tif (string_ne(*(($ptr_elem_typ*)((byte*)a.data+(i*a.element_size))), *(($ptr_elem_typ*)((byte*)b.data+(i*b.element_size))))) {')
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} else if elem_sym.kind == .struct_ && !elem_typ.is_ptr() {
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eq_fn := g.gen_struct_equality_fn(elem_typ)
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fn_builder.writeln('\t\tif (!${eq_fn}_struct_eq((($ptr_elem_typ*)a.data)[i], (($ptr_elem_typ*)b.data)[i])) {')
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} else if elem_sym.kind == .array && !elem_typ.is_ptr() {
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eq_fn := g.gen_array_equality_fn(elem_typ)
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fn_builder.writeln('\t\tif (!${eq_fn}_arr_eq((($ptr_elem_typ*)a.data)[i], (($ptr_elem_typ*)b.data)[i])) {')
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} else if elem_sym.kind == .array_fixed && !elem_typ.is_ptr() {
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eq_fn := g.gen_fixed_array_equality_fn(elem_typ)
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fn_builder.writeln('\t\tif (!${eq_fn}_arr_eq((($ptr_elem_typ*)a.data)[i], (($ptr_elem_typ*)b.data)[i])) {')
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} else if elem_sym.kind == .map && !elem_typ.is_ptr() {
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eq_fn := g.gen_map_equality_fn(elem_typ)
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fn_builder.writeln('\t\tif (!${eq_fn}_map_eq((($ptr_elem_typ*)a.data)[i], (($ptr_elem_typ*)b.data)[i])) {')
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} else if elem_sym.kind == .function {
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fn_builder.writeln('\t\tif (*((voidptr*)((byte*)a.data+(i*a.element_size))) != *((voidptr*)((byte*)b.data+(i*b.element_size)))) {')
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} else {
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fn_builder.writeln('\t\tif (*(($ptr_elem_typ*)((byte*)a.data+(i*a.element_size))) != *(($ptr_elem_typ*)((byte*)b.data+(i*b.element_size)))) {')
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}
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fn_builder.writeln('\t\t\treturn false;')
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fn_builder.writeln('\t\t}')
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fn_builder.writeln('\t}')
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fn_builder.writeln('\treturn true;')
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fn_builder.writeln('}')
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g.auto_fn_definitions << fn_builder.str()
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return ptr_typ
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}
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fn (mut g Gen) gen_fixed_array_equality_fn(left table.Type) string {
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ptr_typ := g.typ(left).trim('*')
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if ptr_typ in g.array_fn_definitions {
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return ptr_typ
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}
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g.array_fn_definitions << ptr_typ
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left_sym := g.table.get_type_symbol(left)
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elem_info := left_sym.array_fixed_info()
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elem_typ := elem_info.elem_type
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size := elem_info.size
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elem_sym := g.table.get_type_symbol(elem_typ)
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g.type_definitions.writeln('static bool ${ptr_typ}_arr_eq($ptr_typ a, $ptr_typ b); // auto')
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mut fn_builder := strings.new_builder(512)
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fn_builder.writeln('static bool ${ptr_typ}_arr_eq($ptr_typ a, $ptr_typ b) {')
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fn_builder.writeln('\tfor (int i = 0; i < $size; ++i) {')
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// compare every pair of elements of the two fixed arrays
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if elem_sym.kind == .string {
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fn_builder.writeln('\t\tif (string_ne(a[i], b[i])) {')
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} else if elem_sym.kind == .struct_ && !elem_typ.is_ptr() {
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eq_fn := g.gen_struct_equality_fn(elem_typ)
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fn_builder.writeln('\t\tif (!${eq_fn}_struct_eq(a[i], b[i])) {')
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} else if elem_sym.kind == .array && !elem_typ.is_ptr() {
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eq_fn := g.gen_array_equality_fn(elem_typ)
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fn_builder.writeln('\t\tif (!${eq_fn}_arr_eq(a[i], b[i])) {')
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} else if elem_sym.kind == .array_fixed && !elem_typ.is_ptr() {
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eq_fn := g.gen_fixed_array_equality_fn(elem_typ)
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fn_builder.writeln('\t\tif (!${eq_fn}_arr_eq(a[i], b[i])) {')
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} else if elem_sym.kind == .map && !elem_typ.is_ptr() {
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eq_fn := g.gen_map_equality_fn(elem_typ)
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fn_builder.writeln('\t\tif (!${eq_fn}_map_eq(a[i], b[i])) {')
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} else if elem_sym.kind == .function {
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fn_builder.writeln('\t\tif (a[i] != b[i]) {')
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} else {
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fn_builder.writeln('\t\tif (a[i] != b[i]) {')
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}
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fn_builder.writeln('\t\t\treturn false;')
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fn_builder.writeln('\t\t}')
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fn_builder.writeln('\t}')
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fn_builder.writeln('\treturn true;')
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fn_builder.writeln('}')
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g.auto_fn_definitions << fn_builder.str()
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return ptr_typ
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}
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fn (mut g Gen) gen_map_equality_fn(left table.Type) string {
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ptr_typ := g.typ(left).trim('*')
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if ptr_typ in g.map_fn_definitions {
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return ptr_typ
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}
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g.map_fn_definitions << ptr_typ
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left_sym := g.table.get_type_symbol(left)
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value_typ := left_sym.map_info().value_type
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ptr_value_typ := g.typ(value_typ)
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g.type_definitions.writeln('static bool ${ptr_typ}_map_eq($ptr_typ a, $ptr_typ b); // auto')
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mut fn_builder := strings.new_builder(512)
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fn_builder.writeln('static bool ${ptr_typ}_map_eq($ptr_typ a, $ptr_typ b) {')
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fn_builder.writeln('\tif (a.len != b.len) {')
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fn_builder.writeln('\t\treturn false;')
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fn_builder.writeln('\t}')
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fn_builder.writeln('\tfor (int i = 0; i < a.key_values.len; ++i) {')
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fn_builder.writeln('\t\tif (!DenseArray_has_index(&a.key_values, i)) continue;')
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fn_builder.writeln('\t\tvoidptr k = DenseArray_key(&a.key_values, i);')
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fn_builder.writeln('\t\tif (!map_exists_1(&b, k)) return false;')
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kind := g.table.type_kind(value_typ)
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if kind == .function {
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value_sym := g.table.get_type_symbol(value_typ)
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func := value_sym.info as table.FnType
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ret_styp := g.typ(func.func.return_type)
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fn_builder.write('\t\t$ret_styp (*v) (')
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arg_len := func.func.params.len
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for j, arg in func.func.params {
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arg_styp := g.typ(arg.typ)
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fn_builder.write('$arg_styp $arg.name')
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if j < arg_len - 1 {
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fn_builder.write(', ')
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}
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}
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fn_builder.writeln(') = *(voidptr*)map_get_1(&a, k, &(voidptr[]){ 0 });')
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} else {
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fn_builder.writeln('\t\t$ptr_value_typ v = *($ptr_value_typ*)map_get_1(&a, k, &($ptr_value_typ[]){ 0 });')
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}
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match kind {
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.string {
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fn_builder.writeln('\t\tif (!fast_string_eq(*(string*)map_get_1(&b, k, &(string[]){_SLIT("")}), v)) {')
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}
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.struct_ {
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eq_fn := g.gen_struct_equality_fn(value_typ)
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fn_builder.writeln('\t\tif (!${eq_fn}_struct_eq(*($ptr_value_typ*)map_get_1(&b, k, &($ptr_value_typ[]){ 0 }), v)) {')
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}
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.array {
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eq_fn := g.gen_array_equality_fn(value_typ)
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fn_builder.writeln('\t\tif (!${eq_fn}_arr_eq(*($ptr_value_typ*)map_get_1(&b, k, &($ptr_value_typ[]){ 0 }), v)) {')
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}
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.array_fixed {
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eq_fn := g.gen_fixed_array_equality_fn(value_typ)
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fn_builder.writeln('\t\tif (!${eq_fn}_arr_eq(*($ptr_value_typ*)map_get_1(&b, k, &($ptr_value_typ[]){ 0 }), v)) {')
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}
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.map {
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eq_fn := g.gen_map_equality_fn(value_typ)
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fn_builder.writeln('\t\tif (!${eq_fn}_map_eq(*($ptr_value_typ*)map_get_1(&b, k, &($ptr_value_typ[]){ 0 }), v)) {')
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}
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.function {
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fn_builder.writeln('\t\tif (*(voidptr*)map_get_1(&b, k, &(voidptr[]){ 0 }) != v) {')
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}
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else {
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fn_builder.writeln('\t\tif (*($ptr_value_typ*)map_get_1(&b, k, &($ptr_value_typ[]){ 0 }) != v) {')
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}
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}
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fn_builder.writeln('\t\t\treturn false;')
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fn_builder.writeln('\t\t}')
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fn_builder.writeln('\t}')
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fn_builder.writeln('\treturn true;')
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fn_builder.writeln('}')
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g.auto_fn_definitions << fn_builder.str()
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return ptr_typ
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}
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