Implement -Wmissing-field-initializers. Patch by mikem!
llvm-svn: 98275
diff --git a/clang/test/Sema/missing-field-initializers.c b/clang/test/Sema/missing-field-initializers.c
new file mode 100644
index 0000000..0ceded07f
--- /dev/null
+++ b/clang/test/Sema/missing-field-initializers.c
@@ -0,0 +1,48 @@
+// RUN: %clang_cc1 -fsyntax-only -verify -Wmissing-field-initializers %s
+
+struct Foo { int a, b; };
+
+struct Foo foo0 = { 1 }; // expected-warning {{missing field 'b' initializer}}
+struct Foo foo1 = { .a = 1 }; // designator avoids MFI warning
+struct Foo foo2 = { .b = 1 }; // designator avoids MFI warning
+
+struct Foo bar0[] = {
+ { 1,2 },
+ { 1 }, // expected-warning {{missing field 'b' initializer}}
+ { 1,2 }
+};
+
+struct Foo bar1[] = {
+ 1, 2,
+ 1, 2,
+ 1
+}; // expected-warning {{missing field 'b' initializer}}
+
+struct One { int a; int b; };
+struct Two { float c; float d; float e; };
+
+struct Three {
+ union {
+ struct One one;
+ struct Two two;
+ } both;
+};
+
+struct Three t0 = {
+ { .one = { 1, 2 } }
+};
+struct Three t1 = {
+ { .two = { 1.0f, 2.0f, 3.0f } }
+};
+
+struct Three data[] = {
+ { { .one = { 1, 2 } } },
+ { { .one = { 1 } } }, // expected-warning {{missing field 'b' initializer}}
+ { { .two = { 1.0f, 2.0f, 3.0f } } },
+ { { .two = { 1.0f, 2.0f } } } // expected-warning {{missing field 'e' initializer}}
+};
+
+struct { int:5; int a; int:5; int b; int:5 } noNamedImplicit[] = {
+ { 1, 2 },
+ { 1 } // expected-warning {{missing field 'b' initializer}}
+};