Generators can have extra target dependencies. Closes #4131.

6 files changed, 50 insertions, 0 deletions

diff --git a/test cases/common/27 pipeline/depends/copyrunner.py b/test cases/common/27 pipeline/depends/copyrunner.py
new file mode 100755
index 0000000..0ef6a6d
--- /dev/null
+++ b/test cases/common/27 pipeline/depends/copyrunner.py
@@ -0,0 +1,7 @@
+#!/usr/bin/env python3
+
+import sys, subprocess
+
+prog, infile, outfile = sys.argv[1:]
+
+subprocess.check_call([prog, infile, outfile])
diff --git a/test cases/common/27 pipeline/depends/filecopier.c b/test cases/common/27 pipeline/depends/filecopier.c
new file mode 100644
index 0000000..9001cf3
--- /dev/null
+++ b/test cases/common/27 pipeline/depends/filecopier.c
@@ -0,0 +1,22 @@
+#include<stdio.h>
+#include<assert.h>
+
+#define BUFSIZE 1024
+
+int main(int argc, char **argv) {
+    char buffer[BUFSIZE];
+    size_t num_read;
+    size_t num_written;
+    FILE *fin = fopen(argv[1], "rb");
+    FILE *fout;
+    assert(fin);
+    num_read = fread(buffer, 1, BUFSIZE, fin);
+    assert(num_read > 0);
+    fclose(fin);
+    fout = fopen(argv[2], "wb");
+    assert(fout);
+    num_written = fwrite(buffer, 1, num_read, fout);
+    assert(num_written == num_read);
+    fclose(fout);
+    return 0;
+}
diff --git a/test cases/common/27 pipeline/depends/libsrc.c.in b/test cases/common/27 pipeline/depends/libsrc.c.in
new file mode 100644
index 0000000..652f4eb
--- /dev/null
+++ b/test cases/common/27 pipeline/depends/libsrc.c.in
@@ -0,0 +1,3 @@
+int func() {
+    return 42;
+}
diff --git a/test cases/common/27 pipeline/depends/meson.build b/test cases/common/27 pipeline/depends/meson.build
new file mode 100644
index 0000000..5111fee
--- /dev/null
+++ b/test cases/common/27 pipeline/depends/meson.build
@@ -0,0 +1,11 @@
+runner = find_program('copyrunner.py')
+
+copier = executable('copier', 'filecopier.c', native: true)
+
+cg = generator(runner,
+    output: ['@BASENAME@.c'],
+    arguments: [copier.full_path(), '@INPUT@', '@OUTPUT@'],
+    depends: copier)
+
+test('generatordep',
+    executable('gd', 'prog.c', cg.process('libsrc.c.in')))
diff --git a/test cases/common/27 pipeline/depends/prog.c b/test cases/common/27 pipeline/depends/prog.c
new file mode 100644
index 0000000..f4a7dd3
--- /dev/null
+++ b/test cases/common/27 pipeline/depends/prog.c
@@ -0,0 +1,5 @@
+int func();
+
+int main(int argc, char **argv) {
+    return func() != 42;
+}
diff --git a/test cases/common/27 pipeline/meson.build b/test cases/common/27 pipeline/meson.build
index bbb49d6..e12cb7b 100644
--- a/test cases/common/27 pipeline/meson.build
+++ b/test cases/common/27 pipeline/meson.build
@@ -19,3 +19,5 @@ test('pipelined', e2)
 # This is in a subdirectory to make sure
 # we write proper subdir paths to output.
 subdir('src')
+
+subdir('depends')