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add optional continue expression to while loop

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closes #139
This commit is contained in:
Andrew Kelley
2016-04-19 20:28:44 -07:00
parent 04364c45ce
commit a25307c0a1
9 changed files with 69 additions and 16 deletions
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6
src/eval.cpp
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@@ -1014,6 +1014,7 @@ static bool eval_while_expr(EvalFn *ef, AstNode *node, ConstExprValue *out_val)
AstNode *cond_node = node->data.while_expr.condition;
AstNode *body_node = node->data.while_expr.body;
AstNode *continue_expr_node = node->data.while_expr.continue_expr;
EvalScope *my_scope = allocate<EvalScope>(1);
my_scope->block_context = body_node->block_context;
@@ -1030,6 +1031,11 @@ static bool eval_while_expr(EvalFn *ef, AstNode *node, ConstExprValue *out_val)
ConstExprValue body_val = {0};
if (eval_expr(ef, body_node, &body_val)) return true;
if (continue_expr_node) {
ConstExprValue continue_expr_val = {0};
if (eval_expr(ef, continue_expr_node, &continue_expr_val)) return true;
}
ef->root->branches_used += 1;
}