llvm-project/clang/test/Frontend/dump-minimization-hints-cpp20-modules.cpp
Ilya Biryukov 0cfe9f7287
[Clang] Handle C++20 export declarations in -dump-minimization-hints (#151666)
Thanks to Justin Stitt for bringing this up, providing test cases and a
direction for the fix!
2025-08-04 10:12:52 +02:00

118 lines
3.3 KiB
C++

// RUN: rm -rf %t
// RUN: mkdir -p %t
// RUN: split-file %s %t
// RUN: %clang_cc1 -std=c++20 %t/foo.cppm -emit-module-interface -o %t/foo.pcm
// RUN: %clang_cc1 -std=c++20 -fprebuilt-module-path=%t %t/use.cpp -dump-minimization-hints=%t/decls
// RUN: cat %t/decls
// RUN: cat %t/decls | FileCheck -check-prefix=RANGE %s
// RANGE:{
// RANGE-NEXT:"required_ranges": [
// RANGE-NEXT: {
// RANGE-NEXT: "file": "{{.+}}foo.cppm",
// RANGE-NEXT: "range": [
// RANGE-NEXT: {
// RANGE-NEXT: "from": {
// RANGE-NEXT: "line": 3,
// RANGE-NEXT: "column": 1
// RANGE-NEXT: },
// RANGE-NEXT: "to": {
// RANGE-NEXT: "line": 3,
// RANGE-NEXT: "column": 22
// RANGE-NEXT: }
// RANGE-NEXT: },
// RANGE-NEXT: {
// RANGE-NEXT: "from": {
// RANGE-NEXT: "line": 4,
// RANGE-NEXT: "column": 3
// RANGE-NEXT: },
// RANGE-NEXT: "to": {
// RANGE-NEXT: "line": 4,
// RANGE-NEXT: "column": 9
// RANGE-NEXT: }
// RANGE-NEXT: },
// RANGE-NEXT: {
// RANGE-NEXT: "from": {
// RANGE-NEXT: "line": 4,
// RANGE-NEXT: "column": 10
// RANGE-NEXT: },
// RANGE-NEXT: "to": {
// RANGE-NEXT: "line": 4,
// RANGE-NEXT: "column": 43
// RANGE-NEXT: }
// RANGE-NEXT: },
// RANGE-NEXT: {
// RANGE-NEXT: "from": {
// RANGE-NEXT: "line": 6,
// RANGE-NEXT: "column": 1
// RANGE-NEXT: },
// RANGE-NEXT: "to": {
// RANGE-NEXT: "line": 6,
// RANGE-NEXT: "column": 2
// RANGE-NEXT: }
// RANGE-NEXT: },
// RANGE-NEXT: {
// RANGE-NEXT: "from": {
// RANGE-NEXT: "line": 8,
// RANGE-NEXT: "column": 1
// RANGE-NEXT: },
// RANGE-NEXT: "to": {
// RANGE-NEXT: "line": 8,
// RANGE-NEXT: "column": 7
// RANGE-NEXT: }
// RANGE-NEXT: },
// RANGE-NEXT: {
// RANGE-NEXT: "from": {
// RANGE-NEXT: "line": 8,
// RANGE-NEXT: "column": 8
// RANGE-NEXT: },
// RANGE-NEXT: "to": {
// RANGE-NEXT: "line": 8,
// RANGE-NEXT: "column": 25
// RANGE-NEXT: }
// RANGE-NEXT: },
// RANGE-NEXT: {
// RANGE-NEXT: "from": {
// RANGE-NEXT: "line": 9,
// RANGE-NEXT: "column": 3
// RANGE-NEXT: },
// RANGE-NEXT: "to": {
// RANGE-NEXT: "line": 9,
// RANGE-NEXT: "column": 36
// RANGE-NEXT: }
// RANGE-NEXT: },
// RANGE-NEXT: {
// RANGE-NEXT: "from": {
// RANGE-NEXT: "line": 11,
// RANGE-NEXT: "column": 1
// RANGE-NEXT: },
// RANGE-NEXT: "to": {
// RANGE-NEXT: "line": 11,
// RANGE-NEXT: "column": 2
// RANGE-NEXT: }
// RANGE-NEXT: }
// RANGE-NEXT: ]
// RANGE-NEXT: }
// RANGE-NEXT:]
// RANGE-NEXT:}
//--- foo.cppm
export module foo;
namespace piecemeal { // line 3
export int used(int n) { return n + 1; }
export int unused(int n) { return n + 2; }
}
export namespace whole { // line 8
int used(int n) { return n + 1; }
int unused(int n) { return n + 3; }
} // line 11
//--- use.cpp
import foo;
int main() {
piecemeal::used(4); // only one of the functions used from each namespace.
whole::used(4);
}