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[expr parser] Brace/bracket unary op required for set leaves.

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This commit is contained in:
Miguel Lechon
2021-09-09 12:48:04 +02:00
parent c0a50bfe27
commit b2c901d60f
3 changed files with 21 additions and 3 deletions
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source/md.c
+16 -2
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@@ -3071,6 +3071,12 @@ MD_ExprBakeOperatorTableFromList(MD_Arena *arena, MD_ExprOperatorList *list)
{
result.subscript_op = &op_node_copy->op;
}
else if(op.kind == MD_ExprOperatorKind_Prefix && MD_S8Match(op_s, MD_S8Lit("[]"), 0)){
result.bracket_set_op = &op_node_copy->op;
}
else if(op.kind == MD_ExprOperatorKind_Prefix && MD_S8Match(op_s, MD_S8Lit("{}"), 0)){
result.brace_set_op = &op_node_copy->op;
}
}
else
{
@@ -3158,8 +3164,10 @@ _MD_ExprParse_Atom(MD_Arena *arena, _MD_ExprParseCtx *ctx)
_MD_ExprParseCtx sub_ctx = _MD_ExprParse_MakeContext(ctx->op_table, node->first_child, node->last_child->next);
result = _MD_ExprParse_Ctx_MinPrecedence(arena, &sub_ctx, 0);
}
else if((node->flags & MD_NodeFlag_HasBracketLeft && node->flags & MD_NodeFlag_HasBracketRight) ||
(node->flags & MD_NodeFlag_HasBraceLeft && node->flags & MD_NodeFlag_HasBraceRight))
else if((node->flags & MD_NodeFlag_HasBracketLeft && node->flags & MD_NodeFlag_HasBracketRight &&
ctx->op_table->bracket_set_op) ||
(node->flags & MD_NodeFlag_HasBraceLeft && node->flags & MD_NodeFlag_HasBraceRight &&
ctx->op_table->brace_set_op))
{
_MD_CtxAdvance(ctx);
// NOTE(mal): Unparsed leaf sets ({ ... }, [ ... ])
@@ -3184,6 +3192,12 @@ _MD_ExprParse_Atom(MD_Arena *arena, _MD_ExprParseCtx *ctx)
MD_Message *error = MD_MakeNodeError(arena, node, MD_MessageKind_Error, error_str);
MD_MessageListPush(&result.errors, error);
}
else if(node->flags & (MD_NodeFlag_HasParenLeft | MD_NodeFlag_HasParenRight | MD_NodeFlag_HasBracketLeft |
MD_NodeFlag_HasBracketRight | MD_NodeFlag_HasBraceLeft | MD_NodeFlag_HasBraceRight)){
MD_String8 error_str = MD_S8Fmt(arena, "Unexpected set.", MD_S8VArg(node->string));
MD_Message *error = MD_MakeNodeError(arena, node, MD_MessageKind_Error, error_str);
MD_MessageListPush(&result.errors, error);
}
else{ // NOTE(mal): leaf
_MD_CtxAdvance(ctx);
result.node = MD_PushArrayZero(arena, MD_ExprNode, 1);
source/md.h
+2
View File
@@ -722,6 +722,8 @@ struct MD_ExprOperatorTable
MD_MessageList errors;
MD_ExprOperator *call_op; // TODO: Move elsewhere
MD_ExprOperator *subscript_op;
MD_ExprOperator *bracket_set_op;
MD_ExprOperator *brace_set_op;
};
typedef struct MD_ExprNode MD_ExprNode;
tests/expression_tests.c
+3 -1
View File
@@ -64,7 +64,9 @@ struct OperatorDescription{
X(AssignRightShift, ">>=", BinaryRightAssociative, 4) \
X(AssignBitwiseAnd, "&=", BinaryRightAssociative, 4) \
X(AssignBitwiseXor, "^=", BinaryRightAssociative, 4) \
X(AssignBitwiseOr, "|=", BinaryRightAssociative, 4)
X(AssignBitwiseOr, "|=", BinaryRightAssociative, 4) \
X(BracketSet, "[]", Prefix, 3) \
X(BraceSet, "{}", Prefix, 3)
// X(Cast "()", Prefix, 17)
// X(Comma, ",", Binary, 3)