picrin/src/value.c

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#include <stdlib.h>
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#include <stdbool.h>
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#include "picrin/value.h"
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enum pic_tt
pic_type(pic_value v)
{
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switch (v.type) {
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case PIC_VTYPE_NIL:
return PIC_TT_NIL;
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case PIC_VTYPE_TRUE:
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return PIC_TT_BOOL;
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case PIC_VTYPE_FALSE:
return PIC_TT_BOOL;
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case PIC_VTYPE_UNDEF:
return PIC_TT_UNDEF;
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case PIC_VTYPE_FLOAT:
return PIC_TT_FLOAT;
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case PIC_VTYPE_EOF:
return PIC_TT_EOF;
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case PIC_VTYPE_HEAP:
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return ((struct pic_object *)v.u.data)->tt;
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}
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/* logic flaw (suppress warnings gcc will emit) */
abort();
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}
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pic_value
pic_nil_value()
{
pic_value v;
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v.type = PIC_VTYPE_NIL;
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v.u.data = NULL;
return v;
}
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pic_value
pic_true_value()
{
pic_value v;
v.type = PIC_VTYPE_TRUE;
v.u.data = NULL;
return v;
}
pic_value
pic_false_value()
{
pic_value v;
v.type = PIC_VTYPE_FALSE;
v.u.data = NULL;
return v;
}
pic_value
pic_bool_value(bool b)
{
pic_value v;
v.type = b ? PIC_VTYPE_TRUE : PIC_VTYPE_FALSE;
v.u.data = NULL;
return v;
}
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pic_value
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pic_obj_value(void *ptr)
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{
pic_value v;
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v.type = PIC_VTYPE_HEAP;
v.u.data = ptr;
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return v;
}
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pic_value
pic_float_value(double f)
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{
pic_value v;
v.type = PIC_VTYPE_FLOAT;
v.u.f = f;
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return v;
}
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pic_value
pic_undef_value()
{
pic_value v;
v.type = PIC_VTYPE_UNDEF;
v.u.data = NULL;
return v;
}