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Translate IntegralCast; add stage2 test coverage

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hryx 2019-06-27 23:12:33 -07:00
parent 646268875e
commit cc74bf5136
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GPG Key ID: 6A2784E15D7D95D6
2 changed files with 69 additions and 1 deletions
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9
src-self-hosted/translate_c.zig
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@ -615,6 +615,15 @@ fn transImplicitCastExpr(
.child_scope = scope,
};
},
.IntegralCast => {
const dest_type = ZigClangExpr_getType(@ptrCast(*const ZigClangExpr, expr));
const src_type = ZigClangExpr_getType(sub_expr);
return TransResult{
.node = try transCCast(rp, scope, ZigClangImplicitCastExpr_getBeginLoc(expr), dest_type, src_type, sub_expr_node.node),
.node_scope = scope,
.child_scope = scope,
};
},
.FunctionToPointerDecay, .ArrayToPointerDecay => {
return maybeSuppressResult(rp, scope, result_used, sub_expr_node);
},

61
test/translate_c.zig
View File

@ -18,7 +18,46 @@ pub fn addCases(cases: *tests.TranslateCContext) void {
\\pub extern fn bar() c_int;
);
cases.add_both("simple var decls",
\\void foo(void) {
\\ int a;
\\ char b = 123;
\\ const int c;
\\ const unsigned d = 440;
\\}
,
\\pub fn foo() void {
\\ var a: c_int = undefined;
\\ var b: u8 = u8(123);
\\ const c: c_int = undefined;
\\ const d: c_uint = c_uint(440);
\\}
);
cases.add_both("ignore result, explicit function arguments",
\\void foo(void) {
\\ int a;
\\ 1;
\\ "hey";
\\ 1 + 1;
\\ 1 - 1;
\\ a = 1;
\\}
,
\\pub fn foo() void {
\\ var a: c_int = undefined;
\\ _ = 1;
\\ _ = c"hey";
\\ _ = (1 + 1);
\\ _ = (1 - 1);
\\ a = 1;
\\}
);
/////////////// Cases that pass for only stage2 ////////////////
// TODO: restore these tests after removing "import mode" concept
// https://github.com/ziglang/zig/issues/2780
// cases.add_2("Parameterless function prototypes",
// \\void a() {}
// \\void b(void) {}
@ -39,8 +78,28 @@ pub fn addCases(cases: *tests.TranslateCContext) void {
// \\pub extern fn bar() void {}
// );
cases.add_2("parameterless function prototypes",
\\void a() {}
\\void b(void) {}
\\void c();
\\void d(void);
,
\\pub fn a(...) void {}
\\pub fn b() void {}
\\pub extern fn c(...) void;
\\pub extern fn d() void;
);
/////////////// Cases for only stage1 which are TODO items for stage2 ////////////////
cases.add_both("simple function definition",
\\void foo(void) {}
\\static void bar(void) {}
,
\\pub fn foo() void {}
\\pub fn bar() void {}
);
cases.add("macro with left shift",
\\#define REDISMODULE_READ (1<<0)
,
@ -132,7 +191,7 @@ pub fn addCases(cases: *tests.TranslateCContext) void {
\\}
);
cases.add("ignore result",
cases.add("ignore result, no function arguments",
\\void foo() {
\\ int a;
\\ 1;