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Fix #632 behaviour

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This commit is contained in:
gingerBill
2020-05-13 23:09:38 +01:00
parent 2630e9ced1
commit 14ce6d8ed8
1 changed files with 19 additions and 3 deletions
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src/check_stmt.cpp
+19 -3
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@@ -17,6 +17,18 @@ void check_stmt_list(CheckerContext *ctx, Array<Ast *> const &stmts, u32 flags)
} }
max--; max--;
} }
isize max_non_constant_declaration = stmts.count;
for (isize i = stmts.count-1; i >= 0; i--) {
if (stmts[i]->kind == Ast_EmptyStmt) {
// Okay
} else if (stmts[i]->kind == Ast_ValueDecl && !stmts[i]->ValueDecl.is_mutable) {
// Okay
} else {
break;
}
max_non_constant_declaration--;
}
for (isize i = 0; i < max; i++) { for (isize i = 0; i < max; i++) {
Ast *n = stmts[i]; Ast *n = stmts[i];
if (n->kind == Ast_EmptyStmt) { if (n->kind == Ast_EmptyStmt) {
@@ -27,10 +39,10 @@ void check_stmt_list(CheckerContext *ctx, Array<Ast *> const &stmts, u32 flags)
new_flags |= Stmt_FallthroughAllowed; new_flags |= Stmt_FallthroughAllowed;
} }
if (i+1 < max) { if (i+1 < max_non_constant_declaration) {
switch (n->kind) { switch (n->kind) {
case Ast_ReturnStmt: case Ast_ReturnStmt:
error(n, "Statements after this 'return' are never execu"); error(n, "Statements after this 'return' are never executed");
break; break;
case Ast_BranchStmt: case Ast_BranchStmt:
@@ -47,7 +59,11 @@ bool check_is_terminating_list(Array<Ast *> const &stmts) {
// Iterate backwards // Iterate backwards
for (isize n = stmts.count-1; n >= 0; n--) { for (isize n = stmts.count-1; n >= 0; n--) {
Ast *stmt = stmts[n]; Ast *stmt = stmts[n];
if (stmt->kind != Ast_EmptyStmt) { if (stmt->kind == Ast_EmptyStmt) {
// Okay
} else if (stmt->kind == Ast_ValueDecl && !stmt->ValueDecl.is_mutable) {
// Okay
} else {
return check_is_terminating(stmt); return check_is_terminating(stmt);
} }
} }