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Remove while loop and readd c-style for loops i.e. all loops are just for

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This commit is contained in:
Ginger Bill
2017-01-27 17:43:42 +00:00
parent 832009f33a
commit 92453369c5
11 changed files with 201 additions and 139 deletions
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src/check_stmt.c
+21 -15
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@@ -127,13 +127,13 @@ bool check_is_terminating(AstNode *node) {
}
case_end;
case_ast_node(ws, WhileStmt, node);
if (ws->cond != NULL && !check_has_break(ws->body, true)) {
return check_is_terminating(ws->body);
case_ast_node(fs, ForStmt, node);
if (!check_has_break(fs->body, true)) {
return check_is_terminating(fs->body);
}
case_end;
case_ast_node(rs, ForStmt, node);
case_ast_node(rs, RangeStmt, node);
if (!check_has_break(rs->body, true)) {
return check_is_terminating(rs->body);
}
@@ -566,27 +566,33 @@ void check_stmt_internal(Checker *c, AstNode *node, u32 flags) {
}
case_end;
case_ast_node(ws, WhileStmt, node);
case_ast_node(fs, ForStmt, node);
u32 new_flags = mod_flags | Stmt_BreakAllowed | Stmt_ContinueAllowed;
check_open_scope(c, node);
if (ws->init != NULL) {
check_stmt(c, ws->init, 0);
if (fs->init != NULL) {
check_stmt(c, fs->init, 0);
}
if (ws->cond) {
Operand operand = {Addressing_Invalid};
check_expr(c, &operand, ws->cond);
if (operand.mode != Addressing_Invalid &&
!is_type_boolean(operand.type)) {
error_node(ws->cond, "Non-boolean condition in `while` statement");
if (fs->cond != NULL) {
Operand o = {Addressing_Invalid};
check_expr(c, &o, fs->cond);
if (o.mode != Addressing_Invalid && !is_type_boolean(o.type)) {
error_node(fs->cond, "Non-boolean condition in `for` statement");
}
}
check_stmt(c, ws->body, new_flags);
if (fs->post != NULL) {
check_stmt(c, fs->post, 0);
if (fs->post->kind != AstNode_AssignStmt) {
error_node(fs->post, "`for` statement post statement must be an assignment");
}
}
check_stmt(c, fs->body, new_flags);
check_close_scope(c);
case_end;
case_ast_node(rs, ForStmt, node);
case_ast_node(rs, RangeStmt, node);
u32 new_flags = mod_flags | Stmt_BreakAllowed | Stmt_ContinueAllowed;
check_open_scope(c, node);