#include <stdio.h>

#include "expr.h"
#include "finalize.h"
#include "sym.h"

int
main(void)
{
    SymAdd(UStrAdd("x"));
    struct Expr *x = newIdentifierExpr(UStrAdd("x"));
    SymAdd(UStrAdd("y"));
    struct Expr *y = newIdentifierExpr(UStrAdd("y"));
    struct Expr *val1 = newUnsignedLiteralExpr(1);
    struct Expr *val2 = newUnsignedLiteralExpr(2);
    struct Expr *val42 = newUnsignedLiteralExpr(42);

    struct Expr *sum1 = newBinaryExpr(EK_ADD, x, val42);
    struct Expr *sum2 = newBinaryExpr(EK_ADD, y, val1);
    struct Expr *assign1 = newBinaryExpr(EK_ASSIGN, y, sum1);
    struct Expr *assign2 = newBinaryExpr(EK_ASSIGN, sum2, val2);

    printExprTree(assign1, stderr);
    printExprTree(assign2, stderr);
    if (isLValueExpr(y)) {
        printf("assign1 = %lf\n", evalExpr(assign1));
    } else {
        printf("Lvalue expected\n");
    }

    if (isLValueExpr(sum2)) {
        printf("assign2 = %lf\n", evalExpr(assign2));
    } else {
        printf("Lvalue expected\n");
    }
    finalize();
}