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//
// support.c
//

#include <assert.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>

#include "slglobals.h"

dtype CurrentDeclTypeSpecs = { 0, };

#undef PICK
#define PICK(a, b, c, d, e) d

const nodekind NodeKind[] = {
    OPCODE_TABLE
};

#undef PICK

#define PICK(a, b, c, d, e) c

int const opcode_atom[] = {
    OPCODE_TABLE
};

#undef PICK

/*
 * NewDeclNode() - Create a new declaration node.
 *
 */
 
decl *NewDeclNode(SourceLoc *loc, int atom, dtype *type)
{
    decl *pdecl;

    pdecl = (decl *) malloc(sizeof(decl));
    pdecl->kind = DECL_N;
    pdecl->loc = *loc;
    pdecl->name = atom;
    pdecl->semantics = 0;
    pdecl->type = *type;
    pdecl->next = NULL;
    pdecl->symb = NULL;
    pdecl->params = NULL;
    pdecl->initexpr = NULL;
    return pdecl;
} // NewDeclNode

/*
 * NewSymbNode() - Create a new symbol node.
 *
 */
 
symb *NewSymbNode(opcode op, Symbol *fSymb)
{
    symb *psymb;

    assert(NodeKind[op] == SYMB_N);
    psymb = (symb *) malloc(sizeof(symb));
    psymb->kind = SYMB_N;
    psymb->type = fSymb->type;
    psymb->IsLValue = 1;
    if (GetQualifiers(psymb->type) & TYPE_QUALIFIER_CONST) {
        psymb->IsConst = 1;
    } else {
        psymb->IsConst = 0;
    }
    psymb->HasSideEffects = 0;
    psymb->op = op;
    psymb->symbol = fSymb;
    return psymb;
} // NewSymbNode

/*
 * NewIConstNode() - Create a new integer constant node.
 *
 */
 
constant *NewIConstNode(opcode op, int fval, int base)
{
    constant *pconst;

    assert(NodeKind[op] == CONST_N);
    pconst = (constant *) malloc(sizeof(constant));
    pconst->kind = CONST_N;
    pconst->type = GetStandardType(base, 0, 0);
    pconst->IsLValue = 0;
    pconst->IsConst = 0;
    pconst->HasSideEffects = 0;
    pconst->op = op;
    pconst->subop = SUBOP__(base);
    pconst->val[0].i = fval;
    pconst->tempptr[0] = 0;
    return pconst;
} // NewIConstNode

/*
 * NewBConstNode() - Create a new Boolean constant node.
 *
 */
 
constant *NewBConstNode(opcode op, int fval, int base)
{
    constant *pconst;

    assert(NodeKind[op] == CONST_N);
    pconst = (constant *) malloc(sizeof(constant));
    pconst->kind = CONST_N;
    pconst->type = GetStandardType(base, 0, 0);
    pconst->IsLValue = 0;
    pconst->IsConst = 0;
    pconst->HasSideEffects = 0;
    pconst->op = op;
    pconst->subop = SUBOP__(base);
    pconst->val[0].i = fval;
    pconst->tempptr[0] = 0;
    return pconst;
} // NewBConstNode

/*
 * NewFConstNode() - Create a new floating point constant node.
 *
 */
 
constant *NewFConstNode(opcode op, float fval, int base)
{
    constant *pconst;

    assert(NodeKind[op] == CONST_N);
    pconst = (constant *) malloc(sizeof(constant));
    pconst->kind = CONST_N;
    pconst->type = GetStandardType(base, 0, 0);
    pconst->IsLValue = 0;
    pconst->IsConst = 0;
    pconst->HasSideEffects = 0;
    pconst->op = op;
    pconst->subop = SUBOP__(base);
    pconst->val[0].f = fval;
    pconst->tempptr[0] = 0;
    return pconst;
} // NewFConstNode

/*
 * NewFConstNodeV() - Create a new floating point constant vector node.
 *
 */
 
constant *NewFConstNodeV(opcode op, float *fval, int len, int base)
{
    constant *pconst;
    int ii;

    assert(NodeKind[op] == CONST_N);
    pconst = (constant *) malloc(sizeof(constant));
    pconst->kind = CONST_N;
    pconst->type = GetStandardType(base, len, 0);
    pconst->IsLValue = 0;
    pconst->IsConst = 0;
    pconst->HasSideEffects = 0;
    pconst->op = op;
    pconst->subop = SUBOP_V(len, base);
    for (ii = 0; ii < len; ii++)
        pconst->val[ii].f = fval[ii];
    pconst->tempptr[0] = 0;
    return pconst;
} // NewFConstNodeV

/*
 * NewUnopNode() - Create a unary op node.
 *
 */
 
unary *NewUnopNode(opcode op, expr *arg)
{
    unary *pun;

    assert(NodeKind[op] == UNARY_N);
    pun = (unary *) malloc(sizeof(unary));
    pun->kind = UNARY_N;
    pun->type = UndefinedType;
    pun->IsLValue = 0;
    pun->IsConst = 0;
    pun->HasSideEffects = 0;
    if (arg)
        pun->HasSideEffects = arg->common.HasSideEffects;
    pun->op = op;
    pun->subop = 0;
    pun->arg = arg;
    pun->tempptr[0] = 0;
    return pun;
} // NewUnopNode

/*
 * NewUnopSubNode() - Create a unary op node.
 *
 */
 
unary *NewUnopSubNode(opcode op, int subop, expr *arg)
{
    unary *pun;

    assert(NodeKind[op] == UNARY_N);
    pun = (unary *) malloc(sizeof(unary));
    pun->kind = UNARY_N;
    pun->type = UndefinedType;
    pun->IsLValue = 0;
    pun->IsConst = 0;
    pun->HasSideEffects = 0;
    if (arg)
        pun->HasSideEffects = arg->common.HasSideEffects;
    pun->op = op;
    pun->subop = subop;
    pun->arg = arg;
    pun->tempptr[0] = 0;
    return pun;
} // NewUnopSubNode

/*
 * NewBinopNode() - Create a binary op node.
 *
 */
 
binary *NewBinopNode(opcode op, expr *left, expr *right)
{
    binary *pbin;

    assert(NodeKind[op] == BINARY_N);
    pbin = (binary *) malloc(sizeof(binary));
    pbin->kind = BINARY_N;
    pbin->type = UndefinedType;
    pbin->IsLValue = 0;
    pbin->IsConst = 0;
    pbin->HasSideEffects = 0;
    if (left)
        pbin->HasSideEffects = left->common.HasSideEffects;
    if (right)
        pbin->HasSideEffects |= right->common.HasSideEffects;
    pbin->op = op;
    pbin->subop = 0;
    pbin->left = left;
    pbin->right = right;
    pbin->tempptr[0] = 0;
    pbin->tempptr[1] = 0;
    return pbin;
} // NewBinopNode

/*
 * NewBinopSubNode() - Create a binary op node.
 *
 */
 
binary *NewBinopSubNode(opcode op, int subop, expr *left, expr *right)
{
    binary *pbin;

    assert(NodeKind[op] == BINARY_N);
    pbin = (binary *) malloc(sizeof(binary));
    pbin->kind = BINARY_N;
    pbin->type = UndefinedType;
    pbin->IsLValue = 0;
    pbin->IsConst = 0;
    pbin->HasSideEffects = 0;
    if (left)
        pbin->HasSideEffects = left->common.HasSideEffects;
    if (right)
        pbin->HasSideEffects |= right->common.HasSideEffects;
    pbin->op = op;
    pbin->subop = subop;
    pbin->left = left;
    pbin->right = right;
    pbin->tempptr[0] = 0;
    pbin->tempptr[1] = 0;
    return pbin;
} // NewBinopSubNode

/*
 * NewTriopNode() - Create a trinary op node.
 *
 */
 
trinary *NewTriopNode(opcode op, expr *arg1, expr *arg2, expr *arg3)
{
    trinary *ptri;

    assert(NodeKind[op] == TRINARY_N);
    ptri = (trinary *) malloc(sizeof(trinary));
    ptri->kind = TRINARY_N;
    ptri->type = UndefinedType;
    ptri->IsLValue = 0;
    ptri->IsConst = 0;
    ptri->HasSideEffects = 0;
    if (arg1)
        ptri->HasSideEffects = arg1->common.HasSideEffects;
    if (arg2)
        ptri->HasSideEffects |= arg2->common.HasSideEffects;
    if (arg3)
        ptri->HasSideEffects |= arg3->common.HasSideEffects;
    ptri->op = op;
    ptri->subop = 0;
    ptri->arg1 = arg1;
    ptri->arg2 = arg2;
    ptri->arg3 = arg3;
    ptri->tempptr[0] = 0;
    ptri->tempptr[1] = 0;
    ptri->tempptr[2] = 0;
    return ptri;
} // NewTriopNode

/*
 * NewTriopSubNode() - Create a trinary op node.
 *
 */
 
trinary *NewTriopSubNode(opcode op, int subop, expr *arg1, expr *arg2, expr *arg3)
{
    trinary *ptri;

    assert(NodeKind[op] == TRINARY_N);
    ptri = (trinary *) malloc(sizeof(trinary));
    ptri->kind = TRINARY_N;
    ptri->type = UndefinedType;
    ptri->IsLValue = 0;
    ptri->IsConst = 0;
    ptri->HasSideEffects = 0;
    if (arg1)
        ptri->HasSideEffects = arg1->common.HasSideEffects;
    if (arg2)
        ptri->HasSideEffects |= arg2->common.HasSideEffects;
    if (arg3)
        ptri->HasSideEffects |= arg3->common.HasSideEffects;
    ptri->op = op;
    ptri->subop = subop;
    ptri->arg1 = arg1;
    ptri->arg2 = arg2;
    ptri->arg3 = arg3;
    ptri->tempptr[0] = 0;
    ptri->tempptr[1] = 0;
    ptri->tempptr[2] = 0;
    return ptri;
} // NewTriopSubNode

/*
 * DupSymbNode() - Duplicate a symb op node.
 *
 */
 
symb *DupSymbNode(const symb *fsymb)
{
    symb *lsymb;

    lsymb = (symb *) malloc(sizeof(symb));
    *lsymb = *fsymb;
    return lsymb;
} // DupSymbNode

/*
 * DupConstNode() - Duplicate a constant op node.
 *
 */
 
constant *DupConstNode(const constant *fconst)
{
    constant *lconst;

    lconst = (constant *) malloc(sizeof(constant));
    *lconst = *fconst;
    return lconst;
} // DupConstNode

/*
 * DupUnaryNode() - Duplicate a unary op node.