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[expr parser] Detect premature end of expression.

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This commit is contained in:
Miguel Lechon
2021-09-11 11:21:34 +02:00
parent ba372c135f
commit aad96bf978
1 changed files with 9 additions and 2 deletions
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source/md.c
+8 -1
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@@ -3156,7 +3156,14 @@ _MD_ExprParse_Atom(MD_Arena *arena, _MD_ExprParseCtx *ctx)
MD_Node *node = ctx->first; MD_Node *node = ctx->first;
MD_ExprOperator *op = 0; MD_ExprOperator *op = 0;
if(node->flags & MD_NodeFlag_HasParenLeft && node->flags & MD_NodeFlag_HasParenRight)
if(MD_NodeIsNil(node))
{
MD_String8 error_str = MD_S8Fmt(arena, "Unexpected end of expression.");
MD_Message *error = MD_MakeNodeError(arena, node, MD_MessageKind_Error, error_str);
MD_MessageListPush(&result.errors, error);
}
else if(node->flags & MD_NodeFlag_HasParenLeft && node->flags & MD_NodeFlag_HasParenRight)
{ // NOTE(mal): Parens { // NOTE(mal): Parens
_MD_CtxAdvance(ctx); _MD_CtxAdvance(ctx);
_MD_ExprParseCtx sub_ctx = _MD_ExprParse_MakeContext(ctx->op_table, node->first_child, node->last_child->next); _MD_ExprParseCtx sub_ctx = _MD_ExprParse_MakeContext(ctx->op_table, node->first_child, node->last_child->next);