99 lines
1.9 KiB
C
99 lines
1.9 KiB
C
#include "value.h"
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#include "lib/commons.h"
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#include "lib/type.h"
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#include "program.h"
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void value_init(value_t* value, type_t* type, int line)
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{
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assert(value);
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assert(type);
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value->type = type;
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value->line = line;
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}
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void value_free(value_t* value)
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{
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assert(value);
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assert(value->type);
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if (value->type->kind == TYPE_STR)
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{
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free(value->value.str);
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value->value.str = NULL;
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}
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if (value->type->kind == TYPE_FUN)
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{
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fun_free(value->value.fun);
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free(value->value.fun);
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value->value.fun = NULL;
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}
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}
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int value_eq(value_t* value, value_t* rhs)
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{
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if (!type_eq(value->type, rhs->type))
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{
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return 0;
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}
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switch (value->type->kind)
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{
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case TYPE_NUM: {
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return value->value.num == rhs->value.num;
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} break;
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case TYPE_BOOL: {
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return value->value.bool == rhs->value.bool;
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} break;
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case TYPE_STR: {
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return strcmp(value->value.str, rhs->value.str) == 0;
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} break;
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case TYPE_FUN: {
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return value->value.fun == rhs->value.fun;
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} break;
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default: {
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fprintf(stderr, "Cannot compare value of type '%s'.\n",
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TypeKindStr[value->type->kind]);
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abort();
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};
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}
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return 0;
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}
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size_t value_str(value_t* value, char* buffer, size_t size)
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{
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assert(value);
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assert(buffer);
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switch (value->type->kind)
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{
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case TYPE_NUM:
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return snprintf(buffer, size, "%lf", value->value.num);
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break;
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case TYPE_BOOL:
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return snprintf(buffer, size, "%s", value->value.bool ? "true" : "false");
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break;
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case TYPE_STR:
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return snprintf(buffer, size, "\"%s\"", value->value.str);
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break;
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case TYPE_FUN:
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return snprintf(buffer, size, "[fun]");
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break;
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default: {
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fprintf(stderr, "Cannot stringify unknown value of type '%s'.\n",
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TypeKindStr[value->type->kind]);
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abort();
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};
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}
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}
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