Update grammar.y with Annie's changes
This commit is contained in:
129
src/grammar.y
129
src/grammar.y
@ -119,18 +119,58 @@ prototype:
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L_PAREN EXTERNAL R_PAREN FUNCTION ID COLON ID;
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definition:
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TYPE ID COLON dblock
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| TYPE ID COLON C_INTEGER ARROW ID
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definition:
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TYPE ID COLON {tn = CreateEntry(getAncestor(cur), recprime, $2, CreateRecordInfo(0, cur = CreateScope(cur, 0, 0)));
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if (table_lookup(getAncestor(cur), $2) == NULL) {
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printf("rec not found \n");
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}
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}dblock { setRecSize(table_lookup(getParent(cur), $2), getRecSize(cur));
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cur = getParent(cur);}
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| TYPE ID COLON C_INTEGER ARROW id_or_types { CreateEntry(cur, arrayprim, $2, CreateArrayInfo($4, look_up(cur, $6)));}
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| function_declaration
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| TYPE ID COLON id_or_types ARROW id_or_types {
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CreateEntry(cur,funtypeprime,$2,CreateFunctionTypeInfo(table_lookup(cur,$4),table_lookup(cur,$6)));
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}
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| ID parameter ASSIGN sblock
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| ID {
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TableNode *node = table_lookup(getAncestor(cur), $<words>1);
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if (node == NULL || getAdInfoType(node) != TYPE_FUNCTION_DECLARATION) {
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printf("function not declared at line %d, column %d\n", @1.first_line, @1.first_column);
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} else {
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setStartLine(node, @1.first_line);
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setAsKeyword(node, false);
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}
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cur = CreateScope(cur, 0, 0);
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} L_PAREN ID {
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CreateEntry(cur, getParameter(table_lookup(getAncestor(cur), getType(table_lookup(getAncestor(cur), $<words>1)))), $<words>4, NULL);
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}R_PAREN ASSIGN sblock
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| ID {
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TableNode *node = table_lookup(getAncestor(cur), $<words>1);
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if (node == NULL) {
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printf("null check\n");
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}
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if (node == NULL || getAdInfoType(node) != TYPE_FUNCTION_DECLARATION) {
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printf("function not declared at line %d, column %d\n", @1.first_line, @1.first_column);
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} else {
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setStartLine(node, @1.first_line);
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setAsKeyword(node, false);
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}
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cur = CreateScope(cur, 0, 0);
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}AS L_PAREN {
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TableNode *parameter = getParameter(table_lookup(getAncestor(cur), getType(table_lookup(getAncestor(cur), $<words>1))));
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if (parameter == NULL || getAdInfoType(parameter) != TYPE_RECORD) {
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printf("function defined with as, but parameter is not a record at line %d, column %d\n", @1.first_line, @1.first_column);
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} else {
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for (TableNode* entry = getFirstEntry(getRecList(parameter)); entry!= NULL; entry = getNextEntry(entry)){
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CreateEntry(cur, entry, NULL, NULL);
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}
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}
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} idlist R_PAREN ASSIGN sblock
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;
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function_declaration:
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FUNCTION ID COLON ID
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| EXTERNAL FUNCTION ID COLON ID
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FUNCTION ID COLON ID {CreateEntry(cur, look_up(cur, $4), $2, CreateFunctionDeclarationInfo(-1, false));}
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| EXTERNAL FUNCTION ID COLON ID {CreateEntry(cur, look_up(cur, $5), $3, NULL);}
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;
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parameter:
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@ -139,14 +179,34 @@ parameter:
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;
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idlist:
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ID COMMA idlist
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| ID
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ID {
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TableNode *entry = getFirstEntry(cur);
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while (getName(entry) != NULL) {
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entry = getNextEntry(entry);
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}
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if (getNextEntry(entry) == NULL) {
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printf("too many parameters at line %d column %d\n", @1.first_line, @1.first_column);
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}
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addName(entry, $<words>1);
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} COMMA idlist
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| ID {
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TableNode *entry = getFirstEntry(cur);
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while (getName(entry) != NULL) {
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entry = getNextEntry(entry);
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}
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if (getNextEntry(entry) != NULL) {
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printf("too many parameters at line %d column %d\n", @1.first_line, @1.first_column);
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}
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addName(entry, $<words>1);
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}
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;
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sblock:
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L_BRACE {cur = CreateScope(cur,@1.first_line,@1.first_column);} statement_list {cur = getParent(cur);} R_BRACE
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| L_BRACE {cur = CreateScope(cur,@1.first_line,@1.first_column);}
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dblock {printf("seen sblock with dblock\n");} statement_list {cur = getParent(cur);} R_BRACE
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L_BRACE {if (getLine(cur) != 0 && getColumn(cur))cur = CreateScope(cur,@1.first_line,@1.first_column);} statement_list {cur = getParent(cur);} R_BRACE
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| L_BRACE {if (getLine(cur) != 0 && getColumn(cur))cur = CreateScope(cur,@1.first_line,@1.first_column);} dblock
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{printf("seen sblock with dblock\n");} statement_list {cur = getParent(cur);} R_BRACE
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;
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dblock:
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@ -158,8 +218,8 @@ declaration_list:
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;
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declaration:
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id_or_types COLON ID {CreateEntry(cur,table_lookup(getAncestor(cur),$<words>1),$<words>3,NULL);}
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;
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id_or_types COLON ID {printf("ID/TYPE: %s, ID: %s\n", $<words>1, $<words>3) ; CreateEntry(cur,table_lookup(getAncestor(cur),$<words>1),$<words>3,NULL); }
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;
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id_or_types:
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ID {printf("string of id in id_or_type is %s\n",$<words>1);} {$$ = $<words>1;}
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@ -180,14 +240,45 @@ compound_statement:
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;
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simple_statement:
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assignable ASSIGN expression
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assignable ASSIGN expression {if(strcmp($1, $3) == 0){
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} else {
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printf("Mismatch at line %d and column%d\n", @2.first_line, @2.first_column);
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}}
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| RETURN expression
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;
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assignable:
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ID
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| assignable ablock
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| assignable rec_op ID
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ID {TableNode *node = table_lookup(cur, $<words>1);
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printf("%s\n", $1);
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if (node == NULL) {
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printf("could not find %s in current scope\n", $<words>1);
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node = table_lookup(getAncestor(cur), $<words>1);
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if (node != NULL && getAdInfoType(node) == TYPE_FUNCTION_DECLARATION) {
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if (getAsKeyword(node)) {
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node = table_lookup(getAncestor(cur), getType(node));
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$<integ>$ = getRecLength(getParameter(node));
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} else {
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$<integ>$ = 1;
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}
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}
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else {
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printf("assignable not defined as correct type at line %d, column %d\n", @1.first_line, @1.first_column);
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}
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} else if (getAdInfoType(node) == TYPE_ARRAY) {
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$<integ>$ = getNumArrDim(node);
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} else {
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$<words>$ = getName(node);
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}
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}
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| assignable ablock {if ($<integ>1 != $<integ>2) {
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printf("invalid number of expressions in ablock at line %d, column %d\n", @1.first_line, @1.first_column);
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}
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$$ = getName(getReturn(look_up(cur, $1)));
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}
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| assignable rec_op ID {TableNode * tn; printf("this is assignable.id %s\n", getType(look_up(cur, $1)));if(NULL != (tn = table_lookup(getRecList(look_up(cur, $1)), $3)))
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{$$ = "test";}
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}
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;
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rec_op :
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@ -271,12 +362,12 @@ expression:
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ablock:
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L_PAREN argument_list R_PAREN
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L_PAREN argument_list {$<integ>$ = $<integ>2;} R_PAREN
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;
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argument_list:
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expression COMMA argument_list
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| expression
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expression COMMA argument_list {$<integ>$ = $<integ>3 + 1;}
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| expression {$<integ>$ = 1;}
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;
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