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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "ast.h"
#include "id_table.h"
static IdTableT IdTable[IDTABLE_SIZE];
static int NextAgentId, NextGnameId;
void IdTable_init() {
int i;
NextAgentId = START_ID_OF_AGENT -1;
NextGnameId = START_ID_OF_GNAME -1;
// 0 : ID_INT(used in expressions)
// 1 .. START_ID_OF_AGENT-1 : built-in agents
// START_IS_OF_AGENT .. NUM_AGENTS-1: user defined agents
// NUM_AGENTS(=ID_NAME) .. : names
for (i=0; i<IDTABLE_SIZE; i++) {
IdTable[i].arity = -1;
IdTable[i].name = NULL;
}
// built-in agent
IdTable[ID_TUPLE0].arity = 0;
IdTable[ID_TUPLE1].arity = 1;
IdTable[ID_TUPLE2].arity = 2;
IdTable[ID_TUPLE3].arity = 3;
IdTable[ID_TUPLE4].arity = 4;
IdTable[ID_TUPLE5].arity = 5;
IdTable[ID_NIL].arity = 0;
IdTable[ID_CONS].arity = 2;
IdTable[ID_INTAGENT].arity = 1;
IdTable[ID_APPEND].arity = 2;
IdTable[ID_MERGER].arity = 1;
IdTable[ID_MERGER_P].arity = 1;
IdTable[ID_ADD].arity = 2;
IdTable[ID_ADD2].arity = 2;
IdTable[ID_SUB].arity = 2;
IdTable[ID_SUB2].arity = 2;
IdTable[ID_MUL].arity = 2;
IdTable[ID_MUL2].arity = 2;
IdTable[ID_DIV].arity = 2;
IdTable[ID_DIV2].arity = 2;
IdTable[ID_MOD].arity = 2;
IdTable[ID_MOD2].arity = 2;
IdTable[ID_INT].name = "int";
IdTable[ID_TUPLE0].name = "Tuple0";
IdTable[ID_TUPLE1].name = "Tuple1";
IdTable[ID_TUPLE2].name = "Tuple2";
IdTable[ID_TUPLE3].name = "Tuple3";
IdTable[ID_TUPLE4].name = "Tuple4";
IdTable[ID_TUPLE5].name = "Tuple5";
IdTable[ID_NIL].name = "[]";
IdTable[ID_CONS].name = "Cons";
IdTable[ID_INTAGENT].name = "Int";
IdTable[ID_APPEND].name = "Append";
IdTable[ID_MERGER].name = "Merger";
IdTable[ID_MERGER_P].name = "_MergerP";
IdTable[ID_ADD].name = "Add";
IdTable[ID_ADD2].name = "_Add";
IdTable[ID_SUB].name = "Sub";
IdTable[ID_SUB2].name = "_Sub";
IdTable[ID_MUL].name = "Mul";
IdTable[ID_MUL2].name = "_Mul";
IdTable[ID_DIV].name = "Div";
IdTable[ID_DIV2].name = "_Div";
IdTable[ID_MOD].name = "Mod";
IdTable[ID_MOD2].name = "_Mod";
}
int IdTable_getid_builtin_funcAgent(Ast *agent) {
// returns -1 if the agent is not built-in.
int id = -1;
if (agent->id != AST_AGENT) {
return -1;
}
if (strcmp((char *)agent->left->sym, "Add") == 0) {
id = ID_ADD;
} else if (strcmp((char *)agent->left->sym, "Sub") == 0) {
id = ID_SUB;
} else if (strcmp((char *)agent->left->sym, "Mul") == 0) {
id = ID_MUL;
} else if (strcmp((char *)agent->left->sym, "Div") == 0) {
id = ID_DIV;
} else if (strcmp((char *)agent->left->sym, "Mod") == 0) {
id = ID_MOD;
} else if (strcmp((char *)agent->left->sym, "Append") == 0) {
id = ID_APPEND;
} else if (strcmp((char *)agent->left->sym, "Int") == 0) {
id = ID_INTAGENT;
} else if (strcmp((char *)agent->left->sym, "Merger") == 0) {
id = ID_MERGER;
}
return id;
}
int IdTable_is_builtin_rule(Ast *agentL, Ast *agentR) {
// puts_ast(agentL);
// printf(" ");
// puts_ast(agentR);
// printf("\n");
if ( (agentL->id == AST_TUPLE) && (agentR->id == AST_TUPLE) ) {
// compare these arities
if (agentL->intval == agentR->intval) {
return 1;
}
return 0;
}
int idL = IdTable_getid_builtin_funcAgent(agentL);
if (agentR->id == AST_INT) {
if ((idL == ID_ADD) || (idL == ID_SUB) || (idL == ID_MUL)
|| (idL == ID_DIV) || (idL == ID_MOD)) {
return 1;
}
return 0;
}
if (idL == ID_APPEND) {
if ((agentR->id == AST_CONS) || (agentR->id == AST_NIL)) {
return 1;
}
return 0;
}
if (idL == ID_MERGER) {
if ((agentR->id == AST_TUPLE) && (agentR->intval == 2)) {
// Merger >< Tuple2
return 1;
}
return 0;
}
return 0;
}
void IdTable_set_name(int id, char *symname)
{
if (id > IDTABLE_SIZE) {
printf("Error: The given id %d was beyond of the size of IdTable (%d)\n",
id, IDTABLE_SIZE);
exit(-1);
}
IdTable[id].name = symname;
}
void IdTable_set_arity(int id, int arity)
{
if ((IdTable[id].arity == -1) || (IdTable[id].arity == arity)) {
IdTable[id].arity = arity;
} else {
printf("Warning: The agent '%s' has been already defined as whose arity is %d, but now used as the arity is %d.\n",
IdTable[id].name, IdTable[id].arity, arity);
IdTable[id].arity = arity;
}
}
char *IdTable_get_name(int id)
{
return IdTable[id].name;
}
int IdTable_get_arity(int id)
{
return IdTable[id].arity;
}
int IdTable_new_agentid() {
NextAgentId++;
if (NextAgentId > ID_NAME) {
printf("ERROR: The number of agents exceeded the size of agents in SYMTABLE (%d)\n",
ID_NAME);
exit(-1);
}
return(NextAgentId);
}
int IdTable_new_gnameid() {
NextGnameId++;
if (NextGnameId < IDTABLE_SIZE) {
return(NextGnameId);
} else {
printf("ERROR: The total number of agents and names exceeded the size of names in IDTABLE (%d)\n",
IDTABLE_SIZE);
exit(-1);
}
}
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