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translate-c: fix regression in switch statement

master
Andrew Kelley 2020-05-23 17:58:35 -04:00
parent f67b8c68a0
commit 88f5e3a60d
1 changed files with 10 additions and 13 deletions
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23
src-self-hosted/translate_c.zig
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@ -2554,9 +2554,8 @@ fn transForLoop(
fn getSwitchCaseCount(stmt: *const ZigClangSwitchStmt) usize {
const body = ZigClangSwitchStmt_getBody(stmt);
assert(ZigClangStmt_getStmtClass(body) == .StmtExprClass);
const stmt_expr = @ptrCast(*const ZigClangStmtExpr, body);
const comp = ZigClangStmtExpr_getSubStmt(stmt_expr);
assert(ZigClangStmt_getStmtClass(body) == .CompoundStmtClass);
const comp = @ptrCast(*const ZigClangCompoundStmt, body);
// TODO https://github.com/ziglang/zig/issues/1738
// return ZigClangCompoundStmt_body_end(comp) - ZigClangCompoundStmt_body_begin(comp);
const start_addr = @ptrToInt(ZigClangCompoundStmt_body_begin(comp));
@ -2614,19 +2613,17 @@ fn transSwitch(
switch_scope.pending_block = try Scope.Block.init(rp.c, scope, null);
try switch_scope.pending_block.statements.append(&switch_node.base);
_ = try transStmt(rp, &block_scope.base, ZigClangSwitchStmt_getBody(stmt), .unused, .r_value);
const last = try transStmt(rp, &block_scope.base, ZigClangSwitchStmt_getBody(stmt), .unused, .r_value);
_ = try appendToken(rp.c, .Semicolon, ";");
// take all pending statements
try switch_scope.pending_block.statements.appendSlice(block_scope.statements.items);
// TODO delete the following commented out code
//const last_block_stmts = last.cast(ast.Node.Block).?.statements();
//switch_scope.pending_block.statements.ensureCapacity(
// switch_scope.pending_block.statements.items.len + last_block_stmts.len,
//);
//for (last_block_stmts) |n| {
// switch_scope.pending_block.statements.appendAssumeCapacity(n);
//}
const last_block_stmts = last.cast(ast.Node.Block).?.statements();
try switch_scope.pending_block.statements.ensureCapacity(
switch_scope.pending_block.statements.items.len + last_block_stmts.len,
);
for (last_block_stmts) |n| {
switch_scope.pending_block.statements.appendAssumeCapacity(n);
}
switch_scope.pending_block.label = try appendIdentifier(rp.c, "__switch");
_ = try appendToken(rp.c, .Colon, ":");