1//===- unittest/Format/IntegerLiteralSeparatorTest.cpp --------------------===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8
9#include "FormatTestBase.h"
10
11#define DEBUG_TYPE "integer-literal-separator-test"
12
13namespace clang {
14namespace format {
15namespace test {
16namespace {
17
18class IntegerLiteralSeparatorTest : public FormatTestBase {};
19
20TEST_F(IntegerLiteralSeparatorTest, SingleQuoteAsSeparator) {
21 FormatStyle Style = getLLVMStyle();
22 EXPECT_EQ(Style.Language, FormatStyle::LK_Cpp);
23 EXPECT_EQ(Style.IntegerLiteralSeparator.Binary, 0);
24 EXPECT_EQ(Style.IntegerLiteralSeparator.Decimal, 0);
25 EXPECT_EQ(Style.IntegerLiteralSeparator.Hex, 0);
26
27 const StringRef Binary("b = 0b10011'11'0110'1u;");
28 verifyFormat(Binary, Style);
29 Style.IntegerLiteralSeparator.Binary = -1;
30 verifyFormat("b = 0b100111101101u;", Binary, Style);
31 Style.IntegerLiteralSeparator.Binary = 1;
32 verifyFormat("b = 0b1'0'0'1'1'1'1'0'1'1'0'1u;", Binary, Style);
33 Style.IntegerLiteralSeparator.Binary = 4;
34 verifyFormat("b = 0b1001'1110'1101u;", Binary, Style);
35
36 const StringRef Decimal("d = 184467'440737'0'95505'92Ull;");
37 verifyFormat(Decimal, Style);
38 Style.IntegerLiteralSeparator.Decimal = -1;
39 verifyFormat("d = 18446744073709550592Ull;", Decimal, Style);
40 Style.IntegerLiteralSeparator.Decimal = 3;
41 verifyFormat("d = 18'446'744'073'709'550'592Ull;", Decimal, Style);
42
43 const StringRef Hex("h = 0xDEAD'BEEF'DE'AD'BEE'Fuz;");
44 verifyFormat(Hex, Style);
45 Style.IntegerLiteralSeparator.Hex = -1;
46 verifyFormat("h = 0xDEADBEEFDEADBEEFuz;", Hex, Style);
47 Style.IntegerLiteralSeparator.Hex = 2;
48 verifyFormat("h = 0xDE'AD'BE'EF'DE'AD'BE'EFuz;", Hex, Style);
49
50 verifyFormat("o0 = 0;\n"
51 "o1 = 07;\n"
52 "o5 = 012345;",
53 Style);
54
55 verifyFormat("bi = 0b1'0000i;\n"
56 "dif = 1'234if;\n"
57 "hil = 0xA'BCil;",
58 "bi = 0b10000i;\n"
59 "dif = 1234if;\n"
60 "hil = 0xABCil;",
61 Style);
62
63 verifyFormat("bd = 0b1'0000d;\n"
64 "dh = 1'234h;\n"
65 "dmin = 1'234min;\n"
66 "dns = 1'234ns;\n"
67 "ds = 1'234s;\n"
68 "dus = 1'234us;\n"
69 "hy = 0xA'BCy;",
70 "bd = 0b10000d;\n"
71 "dh = 1234h;\n"
72 "dmin = 1234min;\n"
73 "dns = 1234ns;\n"
74 "ds = 1234s;\n"
75 "dus = 1234us;\n"
76 "hy = 0xABCy;",
77 Style);
78
79 verifyFormat("hd = 0xAB'Cd;", "hd = 0xABCd;", Style);
80
81 verifyFormat("d = 5'678_km;\n"
82 "h = 0xD'EF_u16;",
83 "d = 5678_km;\n"
84 "h = 0xDEF_u16;",
85 Style);
86
87 Style.Standard = FormatStyle::LS_Cpp11;
88 verifyFormat("ld = 1234L;", Style);
89}
90
91TEST_F(IntegerLiteralSeparatorTest, UnderscoreAsSeparator) {
92 FormatStyle Style = getLLVMStyle();
93 const StringRef Binary("B = 0B10011_11_0110_1;");
94 const StringRef Decimal("d = 184467_440737_0_95505_92;");
95 const StringRef Hex("H = 0XDEAD_BEEF_DE_AD_BEE_F;");
96
97 auto TestUnderscore = [&](auto Language) {
98 Style.Language = Language;
99
100 Style.IntegerLiteralSeparator.Binary = 0;
101 verifyFormat(Binary, Style);
102 Style.IntegerLiteralSeparator.Binary = -1;
103 verifyFormat("B = 0B100111101101;", Binary, Style);
104 Style.IntegerLiteralSeparator.Binary = 4;
105 verifyFormat("B = 0B1001_1110_1101;", Binary, Style);
106
107 Style.IntegerLiteralSeparator.Decimal = 0;
108 verifyFormat(Decimal, Style);
109 Style.IntegerLiteralSeparator.Decimal = -1;
110 verifyFormat("d = 18446744073709550592;", Decimal, Style);
111 Style.IntegerLiteralSeparator.Decimal = 3;
112 verifyFormat("d = 18_446_744_073_709_550_592;", Decimal, Style);
113
114 Style.IntegerLiteralSeparator.Hex = 0;
115 verifyFormat(Hex, Style);
116 Style.IntegerLiteralSeparator.Hex = -1;
117 verifyFormat("H = 0XDEADBEEFDEADBEEF;", Hex, Style);
118 Style.IntegerLiteralSeparator.Hex = 2;
119 verifyFormat("H = 0XDE_AD_BE_EF_DE_AD_BE_EF;", Hex, Style);
120 };
121
122 TestUnderscore(FormatStyle::LK_CSharp);
123 TestUnderscore(FormatStyle::LK_Java);
124 TestUnderscore(FormatStyle::LK_JavaScript);
125
126 verifyFormat("d = 9_007_199_254_740_995n;", Style);
127 verifyFormat("d = 9_007_199_254_740_995n;", "d = 9007199254740995n;", Style);
128
129 Style.IntegerLiteralSeparator.Binary = 8;
130 verifyFormat(
131 "b = 0b100000_00000000_00000000_00000000_00000000_00000000_00000011n;",
132 "b = 0b100000000000000000000000000000000000000000000000000011n;", Style);
133
134 verifyFormat("h = 0x20_00_00_00_00_00_03n;", Style);
135 verifyFormat("h = 0x20_00_00_00_00_00_03n;", "h = 0x20000000000003n;", Style);
136
137 verifyFormat("o = 0o400000000000000003n;", Style);
138}
139
140TEST_F(IntegerLiteralSeparatorTest, MinDigits) {
141 FormatStyle Style = getLLVMStyle();
142 Style.IntegerLiteralSeparator.Binary = 3;
143 Style.IntegerLiteralSeparator.Decimal = 3;
144 Style.IntegerLiteralSeparator.Hex = 2;
145
146 Style.IntegerLiteralSeparator.BinaryMinDigits = 7;
147 verifyFormat("b1 = 0b101101;\n"
148 "b2 = 0b1'101'101;",
149 "b1 = 0b101'101;\n"
150 "b2 = 0b1101101;",
151 Style);
152
153 Style.IntegerLiteralSeparator.DecimalMinDigits = 5;
154 verifyFormat("d1 = 2023;\n"
155 "d2 = 10'000;",
156 "d1 = 2'023;\n"
157 "d2 = 100'00;",
158 Style);
159
160 Style.IntegerLiteralSeparator.DecimalMinDigits = 3;
161 verifyFormat("d1 = 123;\n"
162 "d2 = 1'234;",
163 "d1 = 12'3;\n"
164 "d2 = 12'34;",
165 Style);
166
167 Style.IntegerLiteralSeparator.HexMinDigits = 6;
168 verifyFormat("h1 = 0xABCDE;\n"
169 "h2 = 0xAB'CD'EF;",
170 "h1 = 0xA'BC'DE;\n"
171 "h2 = 0xABC'DEF;",
172 Style);
173}
174
175TEST_F(IntegerLiteralSeparatorTest, FixRanges) {
176 FormatStyle Style = getLLVMStyle();
177 Style.IntegerLiteralSeparator.Decimal = 3;
178
179 const StringRef Code("i = -12'34;\n"
180 "// clang-format off\n"
181 "j = 123'4;\n"
182 "// clang-format on\n"
183 "k = +1'23'4;");
184 const StringRef Expected("i = -1'234;\n"
185 "// clang-format off\n"
186 "j = 123'4;\n"
187 "// clang-format on\n"
188 "k = +1'234;");
189
190 verifyFormat(Expected, Code, Style);
191
192 verifyFormat("i = -1'234;\n"
193 "// clang-format off\n"
194 "j = 123'4;\n"
195 "// clang-format on\n"
196 "k = +1'23'4;",
197 Code, Style, {tooling::Range(0, 11)}); // line 1
198
199 verifyFormat(Code, Code, Style, {tooling::Range(32, 10)}); // line 3
200
201 verifyFormat("i = -12'34;\n"
202 "// clang-format off\n"
203 "j = 123'4;\n"
204 "// clang-format on\n"
205 "k = +1'234;",
206 Code, Style, {tooling::Range(61, 12)}); // line 5
207
208 verifyFormat(Expected, Code, Style,
209 {tooling::Range(0, 11), tooling::Range(61, 12)}); // lines 1, 5
210}
211
212TEST_F(IntegerLiteralSeparatorTest, FloatingPoint) {
213 FormatStyle Style = getLLVMStyle();
214 Style.IntegerLiteralSeparator.Decimal = 3;
215 Style.IntegerLiteralSeparator.Hex = 2;
216
217 verifyFormat("d0 = .0;\n"
218 "d1 = 0.;\n"
219 "y = 7890.;\n"
220 "E = 3456E2;\n"
221 "p = 0xABCp2;",
222 Style);
223
224 Style.Language = FormatStyle::LK_JavaScript;
225 verifyFormat("y = 7890.;\n"
226 "e = 3456e2;",
227 Style);
228
229 Style.Language = FormatStyle::LK_Java;
230 verifyFormat("y = 7890.;\n"
231 "E = 3456E2;\n"
232 "P = 0xABCP2;\n"
233 "f = 1234f;\n"
234 "D = 5678D;",
235 Style);
236
237 Style.Language = FormatStyle::LK_CSharp;
238 verifyFormat("y = 7890.;\n"
239 "e = 3456e2;\n"
240 "F = 1234F;\n"
241 "d = 5678d;\n"
242 "M = 9012M",
243 Style);
244}
245
246} // namespace
247} // namespace test
248} // namespace format
249} // namespace clang
250

source code of clang/unittests/Format/IntegerLiteralSeparatorTest.cpp