tAST_Node *node;
tSpiderValue *ret = NULL, *tmpobj;
tSpiderValue *op1, *op2; // Binary operations
- int cmp; // Used in comparisons
int i;
switch(Node->Type)
SpiderScript_DereferenceValue(op2);
break;
- // Comparisons
- case NODETYPE_EQUALS:
- case NODETYPE_LESSTHAN:
- case NODETYPE_GREATERTHAN:
- case NODETYPE_LESSTHANEQUAL:
- case NODETYPE_GREATERTHANEQUAL:
- op1 = AST_ExecuteNode(Block, Node->BinOp.Left);
- if(op1 == ERRPTR) return ERRPTR;
- op2 = AST_ExecuteNode(Block, Node->BinOp.Right);
- if(op2 == ERRPTR) {
- SpiderScript_DereferenceValue(op1);
- ret = ERRPTR;
- break;
- }
-
- if( !op1 || !op2 ) {
- AST_RuntimeError(Node, "NULL Comparison (%p and %p)", op1, op2);
- if(op1) SpiderScript_DereferenceValue(op1);
- if(op2) SpiderScript_DereferenceValue(op2);
- ret = SpiderScript_CreateInteger( !op1 && !op2 );
- break;
- }
-
- // Convert types
- if( op1->Type != op2->Type ) {
- // If dynamically typed, convert op2 to op1's type
- if(Block->Script->Variant->bImplicitCasts)
- {
- tmpobj = op2;
- op2 = SpiderScript_CastValueTo(op1->Type, op2);
- SpiderScript_DereferenceValue(tmpobj);
- if(op2 == ERRPTR) {
- SpiderScript_DereferenceValue(op1);
- return ERRPTR;
- }
- }
- // If statically typed, this should never happen, but catch it anyway
- else {
- AST_RuntimeError(Node, "Statically typed implicit cast %i <op> %i",
- op1->Type, op2->Type);
- ret = ERRPTR;
- break;
- }
- }
- // Do operation
- switch(op1->Type)
- {
- // - String Compare (does a strcmp, well memcmp)
- case SS_DATATYPE_STRING:
- // Call memcmp to do most of the work
- cmp = memcmp(
- op1->String.Data, op2->String.Data,
- (op1->String.Length < op2->String.Length) ? op1->String.Length : op2->String.Length
- );
- // Handle reaching the end of the string
- if( cmp == 0 ) {
- if( op1->String.Length == op2->String.Length )
- cmp = 0;
- else if( op1->String.Length < op2->String.Length )
- cmp = 1;
- else
- cmp = -1;
- }
- break;
-
- // - Integer Comparisons
- case SS_DATATYPE_INTEGER:
- if( op1->Integer == op2->Integer )
- cmp = 0;
- else if( op1->Integer < op2->Integer )
- cmp = -1;
- else
- cmp = 1;
- break;
- // - Real Number Comparisons
- case SS_DATATYPE_REAL:
- cmp = (op1->Real - op2->Real) / op2->Real * 10000; // < 0.1% difference is equality
- break;
- default:
- AST_RuntimeError(Node, "TODO - Comparison of type %i", op1->Type);
- ret = ERRPTR;
- break;
- }
-
- // Free intermediate objects
- SpiderScript_DereferenceValue(op1);
- SpiderScript_DereferenceValue(op2);
-
- // Error check
- if( ret == ERRPTR )
- break;
-
- // Create return
- switch(Node->Type)
- {
- case NODETYPE_EQUALS: ret = SpiderScript_CreateInteger(cmp == 0); break;
- case NODETYPE_LESSTHAN: ret = SpiderScript_CreateInteger(cmp < 0); break;
- case NODETYPE_GREATERTHAN: ret = SpiderScript_CreateInteger(cmp > 0); break;
- case NODETYPE_LESSTHANEQUAL: ret = SpiderScript_CreateInteger(cmp <= 0); break;
- case NODETYPE_GREATERTHANEQUAL: ret = SpiderScript_CreateInteger(cmp >= 0); break;
- default:
- AST_RuntimeError(Node, "Exec,CmpOp unknown op %i", Node->Type);
- ret = ERRPTR;
- break;
- }
- break;
-
// General Unary Operations
case NODETYPE_BWNOT: // Bitwise NOT (~)
case NODETYPE_NEGATE: // Negation (-)
case NODETYPE_BITSHIFTLEFT:
case NODETYPE_BITSHIFTRIGHT:
case NODETYPE_BITROTATELEFT:
+ case NODETYPE_EQUALS:
+ case NODETYPE_LESSTHAN:
+ case NODETYPE_GREATERTHAN:
+ case NODETYPE_LESSTHANEQUAL:
+ case NODETYPE_GREATERTHANEQUAL:
// Get operands
op1 = AST_ExecuteNode(Block, Node->BinOp.Left);
if(op1 == ERRPTR) return ERRPTR;
if(Right && Right != preCastValue) free(Right);
return NULL;
}
+
+ // Catch comparisons
+ switch(Operation)
+ {
+ case NODETYPE_EQUALS:
+ case NODETYPE_LESSTHAN:
+ case NODETYPE_GREATERTHAN:
+ case NODETYPE_LESSTHANEQUAL:
+ case NODETYPE_GREATERTHANEQUAL: {
+ int cmp;
+ ret = NULL;
+ // Do operation
+ switch(Left->Type)
+ {
+ // - String Compare (does a strcmp, well memcmp)
+ case SS_DATATYPE_STRING:
+ // Call memcmp to do most of the work
+ cmp = memcmp(
+ Left->String.Data, Right->String.Data,
+ (Left->String.Length < Right->String.Length) ? Left->String.Length : Right->String.Length
+ );
+ // Handle reaching the end of the string
+ if( cmp == 0 ) {
+ if( Left->String.Length == Right->String.Length )
+ cmp = 0;
+ else if( Left->String.Length < Right->String.Length )
+ cmp = 1;
+ else
+ cmp = -1;
+ }
+ break;
+
+ // - Integer Comparisons
+ case SS_DATATYPE_INTEGER:
+ if( Left->Integer == Right->Integer )
+ cmp = 0;
+ else if( Left->Integer < Right->Integer )
+ cmp = -1;
+ else
+ cmp = 1;
+ break;
+ // - Real Number Comparisons
+ case SS_DATATYPE_REAL:
+ cmp = (Left->Real - Right->Real) / Right->Real * 10000; // < 0.1% difference is equality
+ break;
+ default:
+ AST_RuntimeError(Node, "TODO - Comparison of type %i", Left->Type);
+ ret = ERRPTR;
+ break;
+ }
+
+ // Error check
+ if( ret != ERRPTR )
+ {
+ if(Left->ReferenceCount == 1 && Left->Type != SS_DATATYPE_STRING)
+ SpiderScript_ReferenceValue(ret = Left);
+ else
+ ret = SpiderScript_CreateInteger(0);
+
+ // Create return
+ switch(Operation)
+ {
+ case NODETYPE_EQUALS: ret->Integer = (cmp == 0); break;
+ case NODETYPE_LESSTHAN: ret->Integer = (cmp < 0); break;
+ case NODETYPE_GREATERTHAN: ret->Integer = (cmp > 0); break;
+ case NODETYPE_LESSTHANEQUAL: ret->Integer = (cmp <= 0); break;
+ case NODETYPE_GREATERTHANEQUAL: ret->Integer = (cmp >= 0); break;
+ default:
+ AST_RuntimeError(Node, "Exec,CmpOp unknown op %i", Operation);
+ SpiderScript_DereferenceValue(ret);
+ ret = ERRPTR;
+ break;
+ }
+ }
+ if(Right && Right != preCastValue) free(Right);
+ return ret;
+ }
+
+ // Fall through and sort by type instead
+ default:
+ break;
+ }
// Do operation
switch(Left->Type)
git.ucc.asn.au / tpg / acess2.git / blobdiff
UCC git Repository :: git.ucc.asn.au